How to Reset the Oil Change Light on a Jeep, Ram, Dodge or Chrysler

There's never a good time for a dead battery, but a 10-degree January morning in a Lee's Summit driveway, with the kids already late for school, might be the worst. You turn the key or press the start button and get a slow, tired groan, a rapid clicking or nothing at all. The frustrating part is that most batteries give warning signs for weeks before they finally quit. The short answer The biggest warning signs are a slow or labored start, clicking when you try to start, dim or flickering lights, electrical glitches, a battery warning light, a swollen or corroded battery, and age. Most car batteries last about 3 to 5 years, and cold weather can cut a battery's strength by about 35% at 32°F and about 60% at 0°F. If your battery is 3 or more years old, get it tested before the first hard freeze. In this guide, we'll walk through the seven signs that your battery is on its way out, why Kansas City's hot summers and cold winters are so tough on batteries, how to check yours at home and what to know about the batteries in today's Jeep, Ram, Dodge and Chrysler vehicles. We'll also help you decide whether a weak battery is just a quick fix or a sign it's time to think about your next vehicle. Whether you drive around Lee's Summit, commute from Blue Springs or Raymore, or head into Kansas City every day, a few minutes now can save you a cold morning stranded later. Why Winter Is Hard on Car Batteries A car battery makes electricity through a chemical reaction, and that reaction slows down as temperatures drop. At the same time, a cold engine is harder to turn over because its oil is thicker. So in winter, your battery has less power available at the exact moment your engine needs more. According to AAA, a battery loses about 35% of its strength at 32°F and about 60% at 0°F, and starting an engine in cold weather can take up to twice the normal current. That's why a battery that seemed fine in October can suddenly fail on the first frigid morning of the year. Here in the Kansas City area, January's average low is about 24°F, and lows occasionally dip into the single digits. That's cold enough to expose any battery that's been quietly weakening. Summer heat does the real damage Here's what surprises a lot of drivers: heat is actually harder on batteries than cold. Consumer Reports explains that high temperatures speed up the chemical breakdown inside a battery, and the heat under the hood makes it worse. Our hot, humid Missouri summers do the damage, and the first cold snap reveals it. That's why the timing matters. If your battery made it through a long, hot summer, fall is the perfect time to find out how much life it has left, before winter does it for you. 7 Signs Your Car Battery Is Dying If you notice one or more of these warning signs, have your battery tested soon. Most are easy to spot once you know what to look for. 1. Your engine cranks slowly This is the most common early warning. Instead of a quick, crisp start, the engine turns over slowly and sounds sluggish, almost like it's struggling to wake up. It's usually most noticeable on cold mornings or after the vehicle has been parked for a day or two. A slow crank means the battery is having trouble delivering the burst of power the starter needs. It may still start today, but it's telling you it won't for much longer. 2. You hear clicking when you try to start A rapid clicking sound when you turn the key or press the start button usually means the battery has enough power to engage the starter's switch, but not enough to actually spin the engine. A single click can point to a starter problem instead. Either way, it's time for a test. If you've needed a jump start more than once recently, that's a strong sign the battery or charging system needs attention. 3. Your headlights and interior lights are dim AAA lists dim or yellowish headlights, and dome lights that are dim or flicker, as warning signs of a weak battery. You might notice headlights that brighten when you rev the engine, or interior lights that dim when you start the vehicle. Modern LED lights can hide this a bit, so pay attention to other clues, too. 4. Electronics act strangely Today's vehicles are full of electronics, and they need steady voltage to work properly. A weak battery can cause the radio or touchscreen to reset, power windows to move slowly, a weaker-sounding horn, phone chargers that stop working or random warning messages on the dash. AAA notes that the growing number of electronics in vehicles is one reason batteries may last closer to three years than five. On many newer Jeep, Ram, Dodge and Chrysler models, you may also notice that the engine Stop/Start feature stops shutting the engine off at red lights. The system has many conditions that can keep it from activating, and a low battery charge is one of them. If it stops working and nothing else has changed, mention it when you have the battery tested. 5. The battery warning light comes on The red battery-shaped warning light on your dash means the battery isn't being charged properly. That can be the battery itself, but it often points to the alternator, a belt or wiring in the charging system. Either way, the vehicle may be running on battery power alone, and it could stall when the battery runs down. Turn off nonessential electronics and get it checked right away. Our guide to Jeep dashboard warning lights explains this and other red lights in detail. 6. The battery looks swollen, cracked, leaking or corroded Pop the hood and take a look. Warning signs include: A swollen or bulging case: often caused by heat or overcharging, and a clear sign the battery needs to be replaced. Cracks or leaks: battery acid is dangerous. Don't touch it with bare hands. White, blue or green crust on the terminals: corrosion can block the flow of electricity and make a healthy battery act like a weak one. Light corrosion can often be cleaned off, but if the battery itself is damaged, replace it. 7. It smells like rotten eggs, or the battery is simply old A sulfur or rotten-egg smell near the battery can mean it's leaking or overheating. Treat it seriously and have it inspected soon. And sometimes the clearest warning sign is the calendar. AAA puts a typical battery's life at about three to five years, and lists being more than three years old as a warning sign by itself. Consumer Reports notes that batteries tend to last longer in colder northern states and wear out faster in hot southern ones. Kansas City's mix of hot summers and cold winters gives batteries a workout in both directions. If yours is three years old or more, get it tested this fall, even if it seems fine. How to Tell How Old Your Battery Is Most batteries have a date sticker or stamp on the top or side. Consumer Reports explains that the code usually shows the month and year it was made. It might look like "10-8" (numbers) or "K-8" (a letter for the month, with A for January and the letter I skipped). Some show a full date instead. If you have service records, your receipt will also show when the battery was installed. And if you bought a used vehicle and don't know the battery's history, it's worth having it tested sooner rather than later. How to Check Your Battery at Home A quick visual check and a simple voltage reading can tell you a lot. Here's how: Turn the engine off and let the vehicle sit for at least a few hours, ideally overnight, so you get a true resting reading. Look the battery over for swelling, cracks, leaks and corrosion on the terminals. Check the connections. The cables should be tight and shouldn't wiggle on the posts. Use a multimeter set to DC volts. Touch the red lead to the positive (+) terminal and the black lead to the negative (−) terminal. Read the voltage. As a general guideline, a fully charged 12-volt battery reads about 12.6 volts or a bit higher at rest. Around 12.4 volts is roughly three-quarters charged, and 12.2 volts or lower suggests the battery is low and needs charging and a proper test. Some vehicles can also show battery voltage in the instrument cluster's vehicle information menu. Check your owner's manual to see if yours does. Why a professional test is better A voltage reading only tells you how charged the battery is, not how healthy it is. A battery can show a full charge and still fail under load on a cold morning. A professional battery test measures how well the battery delivers power under load, which is what actually starts your engine. AAA recommends having a technician check the battery, starter and alternator together, since a weak alternator or starter can look a lot like a bad battery. What's Different About Batteries in Newer CDJR Vehicles Batteries aren't one-size-fits-all anymore, and that's especially true on today's Jeep, Ram, Dodge and Chrysler models. Stop/Start vehicles need the right battery type Vehicles with automatic engine Stop/Start restart the engine many times on every drive, which puts extra demand on the battery. They typically use an advanced battery, such as an AGM (absorbent glass mat) battery. Battery maker VARTA notes that a Stop/Start battery should be replaced with the same type, and that a conventional battery isn't an acceptable substitute because it would wear out quickly. Installing the wrong battery can also cause the Stop/Start system or other electronics to act up. Some vehicles have more than one battery Depending on the model and equipment, your vehicle may have an auxiliary battery in addition to the main one. Plug-in hybrids like the Jeep Wrangler 4xe and Grand Cherokee 4xe have a large high-voltage battery for electric driving, but they also have a separate 12-volt battery that powers the low-voltage systems, according to Jeep's emergency response guide. That 12-volt battery can still weaken with age, just like in a gas vehicle. Mild-hybrid systems Some Ram 1500 and Jeep models have used a 48-volt mild-hybrid system, often called eTorque, to help with smooth Stop/Start operation and add a little torque. These vehicles still have a standard 12-volt battery as well. Replacing or servicing the high-voltage or 48-volt components is a job for trained technicians. The takeaway: when your battery needs replacing, make sure it's the correct type and size for your exact vehicle. A certified Mopar technician will match the battery to your vehicle's specifications. How to Make Your Battery Last Longer You can't stop a battery from aging, but you can slow it down and avoid surprises: Get it tested every fall once it's three years old, and every year after that. Keep the terminals clean and tight. Corrosion and loose cables waste power. Avoid lots of very short trips. Short drives don't give the alternator time to fully recharge the battery, especially in winter when heaters, defrosters and heated seats are running. Drive regularly. If a vehicle sits for weeks, a battery maintainer can keep it charged. Turn off lights and accessories when the engine is off. Unplug dash cams and other devices that draw power while parked. Park in a garage when you can. It helps in both the summer heat and the winter cold. Keep a jump starter in the vehicle. A compact jump pack is an inexpensive way to avoid being stranded. What to Do If Your Battery Dies If it happens, stay calm and stay safe: Check the basics. Make sure the vehicle is in Park and that interior lights or accessories weren't left on. Jump-start it carefully using the procedure and connection points in your owner's manual. Some vehicles specify particular jump-start points under the hood, which may not be the battery itself. Drive it straight to a service department or let it run long enough to recharge, but don't assume the problem is solved. A battery that died once is likely to do it again. Get the whole charging system tested, including the alternator and starter. If you smell rotten eggs, see the battery swelling or notice leaking, don't try to jump-start it. Call for help instead. Your Quick Winter-Ready Checklist While you're thinking about the battery, take care of the other things that make Kansas City winters easier. A few minutes now can prevent a breakdown on a snowy morning on I-470 or Highway 291. Check Why it matters in winter Battery test Cold weather exposes weak batteries first. Tire pressure and tread Pressure drops as temperatures fall, and worn tread loses grip on ice and slush. Wiper blades and washer fluid Road salt and slush make clear visibility essential. Use a winter-rated washer fluid. Coolant The right coolant mix protects against freezing and keeps the heater working. Oil change Fresh oil flows better on cold starts. See our guide on overdue oil changes. 4WD system check Make sure four-wheel drive engages properly before you need it in the snow. Emergency kit Pack a blanket, gloves, flashlight, ice scraper, phone charger and a jump starter. Battery Trouble on an Older Vehicle? It Might Be Time to Upgrade A new battery is often a quick, simple fix. But sometimes a dead battery is the first of several repairs adding up on an aging vehicle. If your car or truck also needs tires, brakes or bigger work this winter, or it just isn't as dependable as it used to be, it's worth comparing the cost of repairs to the benefits of something newer. Newer Jeep, Ram, Dodge and Chrysler models offer features that make Kansas City winters easier, like remote start on many models to warm up the cabin before you head out, heated seats and steering wheels, four-wheel drive and all-wheel drive for snowy roads, and advanced battery management to help keep electrical systems charged. A new vehicle also comes with a factory warranty, and a certified pre-owned vehicle has passed a detailed inspection. If you're on the fence, our team can appraise your current vehicle so you know what it's worth as a trade-in before you decide anything. Ask about a trade-in appraisal when you come in for a battery test, and you'll have both answers in one visit. Frequently Asked Questions How long does a car battery last in Missouri? Most car batteries last about three to five years. Hot Missouri summers speed up wear, so many drivers in the Kansas City area find their batteries need replacing toward the shorter end of that range. Have yours tested once it's three years old. Why does my car battery die in cold weather? Cold slows the chemical reaction that produces power, so a battery loses about 35% of its strength at 32°F and about 60% at 0°F, according to AAA. At the same time, a cold engine needs more power to start. A battery that's already weak may not be able to keep up. Can a battery die without warning? It can, especially if heat has damaged it internally. But most batteries show signs first, like a slow crank, dim lights or electrical glitches. A load test can catch a weak battery before it leaves you stranded. Is it the battery or the alternator? If the vehicle starts with a jump but dies again soon after, or the battery warning light comes on while driving, the alternator or charging system may be the problem. If it starts slowly after sitting but runs fine once started, the battery is the more likely culprit. A technician can test both. Do I need a special battery for a vehicle with Stop/Start? Yes. Vehicles with automatic Stop/Start typically use an advanced battery, such as an AGM battery, and should be fitted with the same type when it's replaced. A conventional battery may wear out quickly and can cause the Stop/Start system to act up. Should I replace my battery before winter even if it still works? If your battery is three or more years old, it's smart to have it load tested in the fall. If the test shows it's weak, replacing it before the first hard freeze is much easier than dealing with a no-start on a cold morning. If it tests healthy, you can keep using it and test it again next year. How long does a battery replacement take? For most vehicles, a battery test and replacement is a quick service visit. Some newer vehicles have batteries in harder-to-reach locations or need additional steps after installation, which can add a little time. Get Your Battery Tested at McCarthy CDJR in Lee's Summit Don't wait for the first sub-zero morning to find out your battery is done. Our certified technicians at McCarthy Jeep Ram Chrysler Dodge can test your battery, starter and alternator, check for corrosion and loose connections, and replace your battery with the correct Mopar battery for your vehicle, including AGM batteries for Stop/Start models. And if a battery test turns into a bigger conversation about your vehicle's future, our sales team is right here, too. Browse our new and certified pre-owned Jeep, Ram, Dodge and Chrysler inventory, or ask for a trade-in appraisal while you're in for service. We're located at 1051 SE Oldham Parkway in Lee's Summit, just off US-50, serving drivers from Blue Springs, Raymore, Independence, Belton, Grain Valley, Greenwood and across the Kansas City metro. Schedule your service online, browse our inventory or call us at (816) 441-5389. Schedule a Battery Test

Walk onto any truck lot and you'll hear people talk about "half-tons," "three-quarter-tons" and "one-tons" as if everyone knows exactly what those words mean. But a modern half-ton can carry far more than half a ton, and the window sticker never mentions tons at all. So what do the labels actually mean, and which one do you need? The short answer A half-ton is a light-duty full-size pickup like the Ram 1500. A three-quarter-ton is a heavy-duty pickup like the Ram 2500, and a one-ton is the heaviest-duty pickup, like the Ram 3500. The names are tradition, not today's real capacity. To pick the right truck, compare payload, towing capacity and GVWR for the exact configuration, not the nickname. In this guide, we'll explain where the "ton" names came from, how Ram's 1500, 2500 and 3500 line up today, what really separates a light-duty truck from a heavy-duty one, and how to match a truck to what you tow and haul. Whether you're pulling a boat to Lake of the Ozarks, hauling a camper to a state park or running a work truck around Lee's Summit, you'll know which class makes sense before you ever take a test drive. Where the "Ton" Names Came From The terms go back to the early 1900s, when the military and truck makers rated trucks by how much cargo they could carry. A half-ton truck was rated to haul about 1,000 pounds, a three-quarter-ton about 1,500 pounds and a one-ton about 2,000 pounds. Trucks have changed dramatically since then. Frames, axles, suspensions, brakes and engines have all become far stronger, and today's pickups carry and tow many times what their great-grandparents could. But the nicknames stuck around because they're an easy shorthand for "light-duty," "heavy-duty" and "heaviest-duty." Automakers themselves have mostly moved on. Ram and GM use model numbers (1500, 2500, 3500), Ford uses F-150, F-250 and F-350, and you won't see the word "ton" in Ram's official specs. When a salesperson or a friend says "half-ton," they simply mean a 1500-series truck. How Ram's 2026 Lineup Lines Up Here's how the three Ram pickups compare using Ram's published 2026 maximums. Remember that a maximum applies only to one specific, properly equipped configuration. The truck you're looking at may be rated lower. Model Nickname Max towing Max payload Engines Ram 1500 Half-ton 11,610 lb 2,360 lb 3.6L Pentastar V6, 3.0L Hurricane twin-turbo I6 (standard and high output), 5.7L HEMI V8 Ram 2500 Three-quarter-ton 20,000 lb 3,930 lb 6.4L HEMI V8, 6.7L Cummins High-Output turbo diesel Ram 3500 One-ton 36,610 lb 7,590 lb 6.4L HEMI V8, 6.7L Cummins High-Output turbo diesel A few details worth knowing: Ram 1500 towing varies a lot by engine. When properly equipped, the Pentastar V6 is rated up to 8,130 pounds, the standard-output Hurricane up to 11,610 pounds, the HEMI up to 11,320 pounds and the high-output Hurricane up to 10,000 pounds. The Ram 2500 tops out at 20,000 pounds with the High-Output Cummins, and the highest payload comes with the gas 6.4L HEMI. The Ram 3500's 36,610-pound rating comes with the High-Output Cummins. The 7,590-pound payload maximum is for the gas HEMI version. Only the 3500 offers dual rear wheels, often called a "dually." The 2500 has single rear wheels. What Actually Separates Light-Duty From Heavy-Duty From the outside, a Ram 1500 and a Ram 2500 look like close cousins. Underneath, they're built for very different jobs. Frame and suspension Heavy-duty trucks use a stronger frame and much stiffer springs to support heavy loads. The Ram 1500 is tuned for ride comfort first, which is why it's popular as a daily driver. A 2500 or 3500 rides firmer when the bed is empty, because its suspension is built for thousands of pounds of weight it isn't carrying. Axles and brakes Heavy-duty trucks use larger axles, bigger brakes and heavier-duty wheel bearings. Those parts are what allow them to stop and control much heavier trailers safely. Engines The Ram 1500's engines are built around a balance of power, refinement and fuel economy. The heavy-duty trucks offer the 6.4L HEMI V8 and the Cummins turbo diesel, which is known for enormous low-end torque that makes heavy trailers easier to get moving and control on hills. Gross vehicle weight rating (GVWR) This is the real dividing line. GVWR is the maximum the truck can weigh with passengers, cargo and fuel. Heavy-duty trucks have much higher GVWRs, which is what gives them their higher payload and towing capacity. The Official Truck Classes Behind the Nicknames The federal government groups vehicles by GVWR. Here's where pickups typically fall: Class 1 (up to 6,000 lb): many midsize pickups. Class 2a (6,001 to 8,500 lb): half-ton pickups like the Ram 1500. Class 2b (8,501 to 10,000 lb): three-quarter-ton pickups like the Ram 2500. Class 3 (10,001 to 14,000 lb): one-ton pickups like the Ram 3500. Those lines aren't always neat. Some heavy-duty configurations, including certain 2026 Ram 2500 models, carry GVWRs above 10,000 pounds. That's another reason to check the specific truck rather than relying on the model name. The 8,500-pound line also explains something buyers often notice: heavy-duty pickups don't have EPA fuel economy ratings on the window sticker. According to FuelEconomy.gov, vehicles over 8,500 pounds GVWR aren't covered by fuel economy regulations, so they aren't tested or rated. The Numbers That Matter More Than the Name If you remember one thing from this guide, make it this: the brochure maximum is not your truck's rating. Here are the numbers to check, and where to find them. Payload Payload is the total weight the truck can carry, including passengers, cargo in the bed and cab, accessories like a toolbox or bed cover, and the tongue weight of any trailer. Your truck's exact payload is printed on the Tire and Loading Information label inside the driver's door jamb. Options like a bigger engine, four-wheel drive, a larger cab or premium features add weight and reduce payload. Towing capacity This is the maximum trailer weight the truck can pull when properly equipped. It depends on the engine, axle ratio, cab, bed length, drivetrain and hitch. Ask for the rating for the specific truck, not the model line. Tongue weight Tongue weight is how much of the trailer's weight presses down on the hitch. A common guideline is 10 to 15 percent of the trailer's loaded weight for a conventional ball-hitch trailer, and 15 to 25 percent for a fifth-wheel or gooseneck. That weight counts against your payload, which is why payload often runs out before towing capacity does. GVWR and GCWR GVWR is the maximum the truck can weigh, fully loaded. GCWR, or gross combined weight rating, is the maximum the truck and trailer can weigh together. Staying under both is essential for safe braking, steering and handling, and for keeping drivetrain components within their design limits. Putting it together: a quick example Say you're looking at a Ram 1500 whose door label shows a 1,700-pound payload, and you want to tow a 7,000-pound travel trailer. At 12 percent, the trailer's tongue weight is about 840 pounds. Add two adults at 350 pounds and 200 pounds of gear, and you're at 1,390 pounds, which fits under the 1,700-pound payload. Add two kids, a dog, a cooler and a generator, though, and you can run out of payload quickly, even though 7,000 pounds is well under the truck's towing rating. Which Truck Fits Your Life? Here's a practical way to think about it, based on how people actually use their trucks around the Kansas City area. Choose a half-ton (Ram 1500) if you: Use your truck as a daily driver and want the most comfortable ride Tow occasionally, like a boat, a pair of jet skis, a utility trailer or a smaller camper Haul weekend loads like mulch, furniture or sporting gear Want the best fuel economy and the easiest parking in a full-size truck Choose a three-quarter-ton (Ram 2500) if you: Tow a large travel trailer often or over long distances Plow snow or carry a heavy slide-in camper Haul heavy tools, equipment or materials for work Want extra margin so you're not towing at the edge of your truck's limits Choose a one-ton (Ram 3500) if you: Pull a large fifth-wheel camper or a gooseneck livestock or equipment trailer Need the highest payload for heavy loads in the bed Want dual rear wheels for extra stability with very heavy trailers Use your truck as a serious work vehicle every day Leave yourself some headroom Many experienced towers follow a rule of thumb of keeping their usual trailer at about 80 percent of the truck's rated towing capacity or less. It's not an official rating, but the extra margin makes long trips, strong crosswinds on I-70 and steep grades on the way to the Ozarks noticeably less stressful. Gas or Diesel? The Big Heavy-Duty Decision Once you've decided you need a 2500 or 3500, the next question is usually which engine. Ram offers two for 2026: the 6.4L HEMI V8 gas engine and the 6.7L Cummins High-Output turbo diesel. The 6.4L HEMI V8 The gas HEMI makes 405 horsepower and 429 lb-ft of torque. It costs less up front, uses regular gasoline, doesn't need diesel exhaust fluid and has simpler routine maintenance. It's also the engine behind the highest published payload ratings for both the 2500 and 3500, because a gas engine weighs less than the diesel and leaves more of the truck's GVWR for cargo. It's a strong choice if you mostly carry heavy loads in the bed, plow snow or tow moderately heavy trailers on shorter trips. The 6.7L Cummins High-Output turbo diesel The Cummins produces 430 horsepower and an enormous 1,075 lb-ft of torque. That torque arrives low in the rev range, so heavy trailers get moving easily and the truck doesn't have to work as hard on long grades. It's the engine behind the top towing ratings: up to 20,000 pounds in the 2500 and up to 36,610 pounds in the 3500 when properly equipped. Diesels also tend to deliver better fuel economy than big gas engines when towing heavy loads over long distances. The tradeoffs are a higher purchase price, diesel exhaust fluid refills, larger oil changes and more expensive fuel filters. As a general rule, if you tow heavy trailers often and far, the diesel earns its keep. If you tow occasionally or mostly haul in the bed, the HEMI is often the smarter buy. Towing Equipment That Matters at Every Size The right truck is only half of a safe towing setup. Whichever class you choose, pay attention to these: Hitch rating: your hitch receiver and ball mount have their own ratings. The lowest-rated component in the setup sets your real limit. Weight-distributing hitch: for heavier conventional trailers, this spreads tongue weight across the truck's axles and the trailer, improving steering and braking. Your owner's manual lists when one is required. Trailer brake controller: trailers with electric brakes need a brake controller in the truck. Many Ram trucks offer an integrated controller that lets you adjust trailer braking from the dash. Fifth-wheel or gooseneck prep: if you plan to tow a fifth-wheel camper or gooseneck trailer, look for a heavy-duty truck with the factory prep package, which adds mounting points in the bed. Towing mirrors and cameras: wide trailers need extended mirrors, and trailer camera systems make backing up and changing lanes much easier. Tow/haul mode: this adjusts transmission shift points for heavy loads, which helps control speed on downhill grades and reduces transmission heat. The Tradeoffs of Going Bigger It's tempting to buy the biggest truck "just in case," but heavier-duty trucks come with tradeoffs: Ride comfort: heavy-duty trucks ride firmer, especially with an empty bed. Fuel costs: bigger engines and heavier trucks generally use more fuel, and diesel prices are often higher than gas. Maintenance: diesel engines need diesel exhaust fluid and have larger, pricier oil changes and fuel filters. Size: heavy-duty trucks are taller and longer, which can make parking garages and drive-thrus tricky. Price: heavy-duty trucks, especially diesels, cost more to buy. On the other hand, if you regularly tow heavy loads, a heavy-duty truck will feel more stable and work less hard, which can mean less wear over time. The right answer is the smallest truck that comfortably handles what you actually tow and haul, with some margin. Kansas City Driving Considerations Where and how you drive matters as much as what you tow. A few things to think about here in the metro: Crosswinds on open highways: stretches of I-70 and US-50 can be windy, and tall travel trailers act like sails. Heavier trucks with more margin feel noticeably more stable. Hills on the way to the lake: the drive to Lake of the Ozarks or Table Rock includes long grades that are easier with more torque and headroom. Winter weather: if you plow snow or tow in winter, four-wheel drive and a heavier-duty truck are worth considering. Plowing usually calls for a heavy-duty truck with the right prep package. Daily commuting: if your truck mostly carries you to work in Kansas City traffic, a half-ton's ride, fuel economy and easier parking may matter more than maximum capability. Common Mistakes Truck Buyers Make Shopping by the brochure maximum. Only one configuration reaches it. Check the actual truck's ratings. Forgetting about payload. Tongue weight, passengers and accessories all count against it. Using the trailer's empty weight. Trailers get much heavier once you add water, propane, food and gear. Use the loaded weight or the trailer's GVWR. Buying for a "someday" trailer. If the big camper is years away, a 1500 may serve you better now. Skipping the right hitch equipment. Heavier conventional trailers often call for a weight-distributing hitch, and a trailer brake controller is essential for trailers with electric brakes. Your owner's manual lists the requirements. Comparing brands, too? Our Ram 1500 vs. Silverado vs. F-150 comparison breaks down how the top half-tons stack up. Frequently Asked Questions What's the difference between payload and towing capacity? Payload is the weight a truck can carry in the cab and bed, including the trailer's tongue weight. Towing capacity is the maximum trailer weight it can pull. Both matter, and payload is often the limit you hit first. Is the Ram 1500 a half-ton truck? Yes. The Ram 1500 is Ram's half-ton, or light-duty full-size, pickup. When properly equipped, the 2026 Ram 1500 can tow up to 11,610 pounds and carry up to 2,360 pounds of payload. Is the Ram 2500 a three-quarter-ton truck? Yes. The Ram 2500 is Ram's three-quarter-ton, or heavy-duty, pickup. When properly equipped with the High-Output Cummins turbo diesel, the 2026 Ram 2500 can tow up to 20,000 pounds. Is a one-ton truck the same as a dually? Not always. A dually has two wheels on each side of the rear axle. The Ram 3500 one-ton is available with single or dual rear wheels, and the Ram 2500 has single rear wheels only. Why don't heavy-duty trucks have an EPA mpg rating? Pickups with a GVWR over 8,500 pounds are classified as heavy-duty and aren't covered by fuel economy regulations, so they aren't tested or rated by the EPA. What does "when properly equipped" mean? Maximum towing and payload numbers only apply to a specific combination of engine, axle ratio, cab, bed, drivetrain and towing equipment. A truck with different options may have lower ratings, so always check the ratings for the exact truck you're buying. Do I need a heavy-duty truck for a fifth-wheel camper? Usually, yes. Fifth-wheel campers put 15 to 25 percent of their weight on the truck, which quickly exceeds most half-ton payloads. Most fifth-wheel owners choose a 2500 or 3500 with the factory fifth-wheel and gooseneck prep package. Where can I find my truck's payload capacity? Look at the Tire and Loading Information label on the driver's door jamb. It lists the maximum combined weight of passengers and cargo for that specific truck. Can a half-ton truck tow a travel trailer? Many can. Compare the trailer's loaded weight to your truck's towing capacity, and make sure the tongue weight plus passengers and cargo stays under the payload on your door label. Find Your Right-Size Ram at McCarthy CDJR Not sure whether a Ram 1500, 2500 or 3500 is the right fit? Bring your trailer's weight, or just tell us what you plan to tow and haul, and our team at McCarthy Jeep Ram Chrysler Dodge will match you with the right configuration. We'll walk you through the real numbers on the door label so there are no surprises, and we'll make sure you have the right hitch and brake controller setup before you head out. We're located at 1051 SE Oldham Parkway in Lee's Summit, just off US-50, and we serve truck buyers from Blue Springs, Raymore, Independence, Belton and across the Kansas City metro. Browse our Ram inventory or call us at (816) 441-5389 to set up a test drive. Browse Ram Inventory

You're cruising down I-470 when a little symbol you've never noticed before lights up on the dash. Is it serious? Can you keep driving? Do you need to pull over right now, or can it wait until the weekend? Every Jeep owner has had that moment, and the answer isn't always obvious when you're looking at a tiny orange icon at 65 mph. The short answer Start with the color. Red means stop safely and check the problem now. Yellow or amber means something needs attention soon, but you can usually keep driving carefully. Green, white and blue lights simply tell you a system is on. A flashing light is almost always more urgent than the same light glowing steadily. In this guide, we'll walk through the warning lights and indicators you're most likely to see on a Jeep Wrangler, Gladiator, Grand Cherokee, Compass, Cherokee or Wagoneer, what each one means and exactly what to do next. We've based it on the official Jeep and Stellantis owner's manuals, plus what our service team in Lee's Summit sees in the shop every week. Keep it bookmarked, or better yet, use it alongside the owner's manual in your glove box, since every model and trim has a few symbols of its own. Start With the Color: What Each Light Color Means Jeep groups its dashboard symbols by color, and the color is the fastest way to judge how urgent a light is. Jeep's owner's manuals sort them into red warning lights, yellow warning lights and indicator lights in yellow, green, white and blue. Color What it means What to do Red A safety issue or a problem that can damage the vehicle Pull over when it's safe and check it now. Some red lights mean you shouldn't keep driving. Yellow or amber A system needs attention or has a fault Keep driving carefully and schedule service soon. Green A system is on and working Nothing. It's information only. White A system is ready or available Nothing. It's information only. Blue High beams are on Dim them for oncoming traffic. One important exception: on Jeep 4x4 models, some yellow lights are simply indicators. The 4WD, 4WD Low and sway bar disconnect lights on a Wrangler, for example, are yellow because they're reminding you that an off-road system is engaged, not because something is wrong. We'll cover those below. Why every light comes on when you start your Jeep When you turn the ignition on, many warning lights light up for a few seconds and then go out. That's a self-check, and it's normal. It's actually a problem if a light like the check engine, airbag or ABS light does not come on during startup, because that can mean the warning system itself isn't working. Jeep's manuals recommend having it inspected if that happens. Red Warning Lights: Stop Safely and Check Now Red lights are the ones you shouldn't ignore. Some, like the seat belt or door open light, are easy to fix on the spot. Others mean continuing to drive could damage the engine or transmission or affect your safety. Oil pressure warning light Looks like: an old-fashioned oil can with a drip. This light means the engine's oil pressure is low. It's one of the most serious lights on the dash. Jeep's manuals say to pull over and shut off the engine as soon as it's safe, and not to drive the vehicle until the problem is fixed. The light doesn't tell you how much oil is in the engine, so check the level with the dipstick or the vehicle information display once the engine is off. Even if the oil level looks fine, have the vehicle towed or inspected before driving it again. Low oil pressure can destroy an engine in a very short time. Don't confuse this light with the "Oil Change Required" message, which is just a maintenance reminder. Our guide on how long you can drive with an overdue oil change explains the difference. Engine coolant temperature warning light Looks like: a thermometer sitting in wavy lines of liquid. Your engine is overheating. You'll usually hear a chime, too. According to Jeep's manuals, pull over safely, turn off the air conditioning, shift into Neutral and let the engine idle so the temperature can come down. If it doesn't return to normal, shut the engine off and call for service. Never open the radiator or coolant reservoir cap on a hot engine; the coolant is under pressure and can cause serious burns. Overheating is most common in summer stop-and-go traffic, when towing or after a coolant leak. If you also see a yellow low coolant level light, the cause may be as simple as low coolant, but it still needs to be checked for a leak. Oil temperature warning light Looks like: an oil can with a thermometer. The engine oil is running hotter than it should. This is more likely when you're towing, crawling slowly off-road on a hot day or climbing long grades. Pull over safely, turn off the engine and let the oil cool before continuing. If it happens repeatedly, have the cooling and lubrication systems checked. Transmission temperature warning light Looks like: a gear with a thermometer in the middle. The transmission fluid is too hot, which often happens with heavy towing or long, slow off-road climbs. Jeep's manuals say to pull over, put the vehicle in Park or Neutral and let the engine idle until the light goes out, then you can continue. Don't keep driving with this light on: overheated fluid can boil over onto hot engine or exhaust parts and create a fire risk, and it will eventually cause serious transmission damage. Battery charge warning light Looks like: a car battery with plus and minus signs. The battery isn't being charged properly. That usually points to a problem with the alternator, a belt or the charging system's wiring. When this light is on, your Jeep is running on battery power alone, and it may stall once the battery runs down. Turn off nonessential electrical items like heated seats and the radio, and head straight to a service department. Don't plan on making a long trip first. Brake warning light Looks like: an exclamation point inside a circle with brackets on each side, sometimes with the word "BRAKE." This light has a few possible meanings: The parking brake is set. Release it and the light should go out. The brake fluid is low, which usually means there's a leak in the brake system. There's a hydraulic or brake booster fault. You may feel the pedal pulse or hear the ABS pump run. If the brake light and the ABS light come on together, the system that balances braking front to rear may have failed. If the light stays on after you release the parking brake, Jeep's manuals are blunt: driving with the red brake light on is dangerous, and stopping distances can be longer. Have the vehicle checked right away, and tow it if the brake pedal feels soft or low. Air bag warning light Looks like: a seated person with a large circle in front of them. The air bag system has a fault, which means an air bag may not deploy correctly in a crash. The light normally comes on for a few seconds at startup as a self-check. If it stays on, comes on while driving or doesn't light up at all during startup, have the system inspected as soon as possible. Electronic Throttle Control (ETC) warning light Looks like: a lightning bolt between two brackets. This one is especially common on Jeep, Ram, Dodge and Chrysler vehicles. It means the electronic throttle system, which controls how the engine responds to the gas pedal, has detected a problem. Steady: the vehicle is usually still drivable. Stop safely, put the vehicle in Park and turn the ignition off and back on. If the light goes out, you're fine. If it stays on, schedule service soon. Flashing: a more serious problem. You may notice reduced power, a rough or high idle or stalling. Get service immediately; the vehicle may need to be towed. The light can also come on briefly if you press the gas and brake pedals at the same time. Power steering warning light Looks like: a steering wheel with an exclamation point. There's a problem with the power steering system. Steering may take noticeably more effort, especially at low speeds and in parking lots. Drive carefully to a service department and avoid tight maneuvering until it's fixed. Other red lights Seat belt reminder: the driver or a front passenger isn't buckled. Buckle up. Door, hood or swing gate open: something isn't fully latched. Stop and close it before driving further, especially the hood. Vehicle security: on equipped models, this flashes when the security system is armed, which is normal. If it stays on while driving, the security system may have a fault. Yellow Warning Lights: Get It Checked Soon Yellow warning lights don't usually mean you need to pull over immediately, but they do mean something isn't working the way it should. Ignoring them can turn a small repair into a bigger one. Check engine light Looks like: the outline of an engine. Officially called the Malfunction Indicator Light, this is part of your Jeep's onboard diagnostic system, which monitors the engine and emissions controls. The way it lights up tells you a lot: Steady: a problem has been detected. Sometimes it's minor, like a loose gas cap or poor-quality fuel. Your Jeep will usually drive normally, but if the light stays on after several drives, schedule service. Driving for a long time with the light on can affect fuel economy and other systems. Flashing: a serious problem, often an engine misfire, that can cause sudden power loss or severe catalytic converter damage. Reduce speed and get service as soon as possible. Jeep's manuals also warn not to park over dry grass, leaves or other flammable material, because an overheated catalytic converter can start a fire. Some Jeeps also have a separate loose fuel filler cap light. If you see it, tighten the gas cap until it's secure. If the light doesn't go off after that, have it checked. Tire pressure warning light (TPMS) Looks like: a horseshoe-shaped tire cross-section with an exclamation point inside. Steady: one or more tires are below the recommended pressure. Check all four tires and fill them to the pressure listed on the label inside the driver's door, not the maximum number printed on the tire. Flashing for about a minute, then steady: the tire pressure monitoring system itself has a fault, so it may not warn you if a tire gets low. Have it checked. This is the light Kansas City drivers see most often on the first cold morning of fall. As a rule of thumb, tire pressure drops about 1 to 2 PSI for every 10-degree drop in air temperature, so a tire that was fine on a 70-degree afternoon can trigger the light at 30 degrees the next morning. Check pressures when the tires are cold, before you've driven far. And never keep driving on a flat or badly underinflated tire, since handling can be affected. ABS warning light Looks like: the letters "ABS" inside a circle. The anti-lock brake system has a fault. Your regular brakes should still work as long as the red brake warning light is off, but the anti-lock function won't, which matters most on wet or icy roads. Schedule service as soon as possible and leave extra stopping distance until then. Electronic Stability Control (ESC) lights ESC active, which looks like a vehicle with two wavy lines behind it: when this comes on while you're driving, the stability system is working to keep you from skidding. You may hear clicking or buzzing, which is normal. Ease off the gas and drive for the conditions. If the light stays on all the time, the system may have a fault and should be checked. ESC off, which is the same symbol with the word "OFF": stability control has been partially or fully turned off. Some off-road situations call for that, such as rocking out of deep snow or mud, but turn it back on when you're back on pavement. Service 4WD light The four-wheel-drive system has detected a problem and isn't working correctly. Avoid off-road driving and get it inspected promptly. On Wrangler and Gladiator models, make sure you've completed any shift between 2H, 4H and 4L fully. Follow the shifting steps in your owner's manual, since an incomplete shift can also trigger a message. Low coolant level light The coolant is below the proper level. Once the engine is completely cool, check the coolant reservoir and top it off with the coolant type listed in your owner's manual. Coolant doesn't usually disappear on its own, so have the system checked for leaks, especially before towing or a long trip. Other yellow warning lights Low fuel: time to fill up. Low washer fluid: refill the windshield washer reservoir. In winter, use a fluid rated for freezing temperatures. Service Forward Collision Warning: the forward collision system has a fault. A dirty windshield, snow or mud over the front sensor can sometimes cause it. Clean the area, and if the light stays on, have it checked. Service Stop/Start: the automatic engine stop/start system needs attention. The engine will still run normally. Sway bar fault (Rubicon models): the electronic sway bar disconnect isn't working correctly. Have it inspected before your next trail day. Air suspension fault (Grand Cherokee and Wagoneer with Quadra-Lift): the air suspension has detected a problem. Avoid changing ride height and have it checked. Cruise control or adaptive cruise control fault: cruise control won't work until the problem is fixed. Indicator Lights: Systems Doing Their Job These lights don't mean anything is wrong. They're telling you a feature is on, ready or engaged. Four-wheel-drive and off-road indicators 4WD, 4WD Part Time and 4WD Low (yellow on Wrangler and Gladiator): show which transfer case mode you're in. They're yellow as a reminder, since part-time 4WD isn't meant for dry pavement. 4WD Auto (green): the full-time four-wheel-drive mode is engaged. Sway bar (yellow, Rubicon): the front sway bar is disconnected for more wheel travel off-road. Reconnect it before driving at higher speeds on pavement. Axle lock (yellow): the rear or front and rear lockers are engaged. Unlock them for normal driving and turning on pavement. Hill Descent Control and Selec-Speed Control (white): the low-speed descent or crawl control is ready or working. Everyday indicators Stop/Start active (green): the engine has shut off at a stop to save fuel and will restart when you lift off the brake. Cruise control (white when ready, green when set): shows cruise control status. Forward Collision Warning off (yellow): the system has been turned off. You can turn it back on in the Uconnect settings. Headlights, fog lights and turn signals (green): these lights are on. High beams (blue): your high beams are on. Messages That Aren't Warning Lights Newer Jeeps also show text messages in the instrument cluster display. A few common ones: "Oil Change Required": the oil life monitor has reached 0%. It's a maintenance reminder, not an emergency. Schedule an oil change soon, and remember the monitor needs to be reset afterward. We have a guide for resetting the oil change light on a 2026 Jeep Compass. Tire pressure readings: many models show each tire's pressure, which makes it easy to see which one is low. Driving a Wrangler? Our Jeep Wrangler dashboard warning lights guide covers Wrangler-specific details. What to Do When a Warning Light Comes On Check the color and whether it's flashing. Red or flashing means act now; yellow and steady means schedule service soon. Notice how the Jeep feels. Unusual noises, smells, smoke, a soft brake pedal, overheating or a loss of power all raise the urgency. Pull over safely if it's red. Get completely off the road before checking anything under the hood. Read the message in the cluster. Many lights come with a text message that explains the issue more clearly. Look it up in your owner's manual. Every model has a few unique symbols, and the manual lists them all. Call your service department. If you're unsure whether it's safe to drive, ask. It's better to tow a vehicle a few miles than to replace an engine. Frequently Asked Questions Can I drive my Jeep with the check engine light on? If the light is steady and your Jeep drives normally, you can usually drive it for a short time, but schedule service soon. If the light is flashing, reduce speed and get service as soon as possible, because a severe misfire can damage the catalytic converter. What does the lightning bolt light mean on a Jeep? The lightning bolt between two brackets is the Electronic Throttle Control light. If it's steady, stop safely, put the vehicle in Park and restart it; if it stays on, schedule service. If it's flashing, the problem is more serious and you may need a tow. Why is my Jeep's tire pressure light on when it's cold outside? Tire pressure drops about 1 to 2 PSI for every 10-degree drop in temperature, so the first cold morning often triggers the light. Fill the tires to the pressure on the driver's door label while the tires are cold. Why are some 4WD lights on my Wrangler yellow? On Wrangler and Gladiator models, the 4WD, 4WD Low, sway bar and axle lock lights are yellow indicators. They remind you an off-road system is engaged, not that something is broken. The separate "Service 4WD" light is the one that means there's a problem. Why do all the warning lights come on when I start my Jeep? That's a normal self-check. The lights should go out within a few seconds after the engine starts. If one stays on, or if a light like the airbag or check engine light never comes on at all during startup, have the vehicle inspected. Will a warning light reset itself? Some lights go out on their own once the cause is fixed, like tightening a loose gas cap or inflating a low tire. Others stay on until a technician repairs the problem and clears the code. Warning Light On? McCarthy CDJR Can Help When a light comes on and you're not sure what it means, our Jeep-certified technicians in Lee's Summit can find out fast. We use factory diagnostic equipment to read your Jeep's codes, explain what's going on in plain language and fix it with genuine Mopar parts. We work on every Jeep model, from classic Wranglers to the latest Grand Cherokee and Wagoneer. We're located at 1051 SE Oldham Parkway in Lee's Summit, just off US-50, and we serve Jeep owners from Blue Springs, Raymore, Independence, Belton and across the Kansas City metro. Schedule your service online or call us at (816) 441-5389. If a red light means your Jeep shouldn't be driven, call us first and we'll help you figure out the next step. Schedule Jeep Service