Automobile Warning Lights

April 17, 2014

Warning Lights That Signal Car Repair


Do you know what each and every one of the warning lights on your car’s dashboard represents? Probably not, but there are a few warning lights that every driver should know, if only because they cannot be ignored (regardless if you’re a regular commuter or you only use your automobile for short trips).


The warning indicators on your dashboard are there for a reason, and most illuminate in different ways to signal different situations. For instance, when you start your car, all of the lights on your dashboard will typically flash, letting you know that each of your vehicle’s systems is in working order. If, however, one illuminates while you’re driving or after this start-up sequence, it could indicate that your car needs repair, and quick.


Here’s a run-down of the most important lights on your dashboard.


Oil Pressure Light

This light may actually be one of the most important lights on your dashboard. Often showing a little oilcan or the word “OIL,” the oil pressure light illuminates when your vehicle experiences a drop in oil pressure.


Because it is vital that your engine be well-lubricated during operation, you should never drive your vehicle if this light is on. If it turns on and stays on while you are driving, pull off the road at the first safe opportunity, turn off your engine, and call someone for assistance. Driving your car while the oil pressure light is on can cause serious, irreparable damage to your engine.


Engine Temperature Light

Another important warning indicator, the engine temperature light is often a thermometer icon or the word “TEMP.” This dashboard light illuminates when the temperature of your engine exceeds safe levels and, unless it is quickly brought into “the safe zone,” can damage your engine.


An illuminated engine temperature light could indicate a coolant leak, a faulty temperature sensor, or another serious issue. If the engine temperature indicator turns on and stays on while you are driving, you should try not to drive your vehicle. Instead, pull off the road at the first safe opportunity, shut off your engine, and call for help.


If your engine is steaming, be extremely careful if you try to open your hood. And do not, under any circumstances, try to remove your radiator cap while the engine is hot.


Charging System Light

Typically a battery symbol, the word “GEN” or the word “ALT,” the charging system light lets you know when there is a problem with your vehicle’s electrical system (specifically, that your electrical system is not getting power from the alternator).

If this light comes on, turn off any unnecessary electrical drains (like your radio, heater, air conditioner, or iPod charger) and drive your vehicle to a car repair shop as soon as you can. Be aware that if you park your car, you may not be able to start it again without a “jump.”


Check Engine Light

The Check Engine Light is another helpful dashboard indicator that lets you know that you should have your car checked out by a service professional. Typically, this light (which is often an engine icon and/or the words “CHECK” or “CHECK ENGINE”) lets you know when there is something wrong with your vehicle’s exhaust system.


This light can stay on or flash, depending on the type of problem that your vehicle’s sensors are sensing. If the light stays on, make an appointment with a car repair shop as soon as is convenient. If the light flashes, this could indicate a more serious problem, so it’s best to make an appointment (or emergency repair visit) immediately.


Other Dashboard Indicators

The warning lights listed above aren’t the only dashboard lights that can indicate your car needs to be serviced, but they are the most important. Depending on the type and year of your vehicle, you may also see any of the following dashboard indicators:

  • Brake System Light
  • Battery Charge Warning Light
  • Low Coolant Level Warning Light
  • IMA Light (for Integrated Motor Assist)


Disregarding the warning lights on your vehicle can cause serious, costly damage. It can also endanger the safety of anyone in the vehicle (and other cars on the road). If your warning indicators light up or act in a way that seems unusual, be sure to call a qualified auto repair service technician or repair shop to make sure that your vehicle is still safe to drive.

February 11, 2026
Most Slinger drivers are aware that manufacturers have service intervals for your car . The engineers that design our vehicles have tested the various systems and components to meet durability and safety standards. Some of these standards are self-imposed and others, like those for emissions components, are government mandated. The maintenance schedules are designed to achieve the standards. Think of the benefits of following recommended intervals as falling into three general categories: Protection, Efficiency and Safety.  Protection . Let’s start with motor oil. First of all, the engineers recommend a particular weight and type of motor oil. All of their oil change recommendations assume using the proper motor oil. Motor oil contains detergents and other additives that clean the engine and provide corrosion resistance. Over time, the additives are depleted. The oil also becomes contaminated by water, dirt and combustion gases. Extending your interval beyond the recommendation means that your engine will be operating without the full protection of fresh motor oil. It also means that sludge can form in contaminated oil and clog up passages in the engine, starving parts from needed lubrication. Efficiency . Some Slinger services are designed to keep automotive systems operating efficiently. For example, the fuel system gets clogged up with gum and varnish from the fuel. Fuel doesn’t flow efficiently which reduces fuel economy. A fuel system cleaning restores the fuel system’s efficiency and increases your gas mileage. Safety . Your brakes are obviously one of the most important safety systems on your vehicle. The has scheduled brake pad replacement as well as power brake fluid drain and replacement intervals. Because brakes are so important, a brake inspection is also on the schedule to head off problems before they result in an accident. Check your owner’s manual for recommended service schedules or talk with your friendly and knowledgeable Joe’s Slinger Service . You may be surprised to learn that various inspections may be on your list of factory recommendations. These inspections are usually at major intervals like 24,000 miles or 40,000 kilometers. They’re designed to uncover important parts that may be close to failing. Your owner’s manual can tell you when to change your oil, but it can’t tell you that you have a radiator hose that’s bulging and about to burst. For that you need a technician. These scheduled inspections are in addition to the multi-point inspections done with a full-service oil change at Joe’s Slinger Service.
Comparison of Budget (EverStart) and ACDelco car batteries, highlighting features. Blue and black background. | Joe's Slinger Service
January 22, 2026
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Mechanic using a tablet while examining a blue SUV with the hood open in a garage. | Joe's Slinger Service
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Spare tire inside a car trunk. Black wheel with tire, set in a compartment. | Joe's Slinger Service
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