DASHBOARD WARNING LIGHTS
With so many sensors and dashboard lights in modern vehicles, it’s important to know some basics. Here are some of the more common symbols which can alert you to potential problems before they become troublesome and costly, as well as related products and services offered by O’Reilly Auto Parts.
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Check Engine |
There are literally hundreds of reasons this light can come on. Your local O'Reilly Auto Parts store offers Free Check Engine Light scanning. Stop by and let one of our Parts Professionals help diagnose the problem for you. Find My Store
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Battery/Charging Alert |
In almost every case, you have either a bad battery or a failing alternator. Either way, your vehicle is about to die. O'Reilly Auto Parts will test your battery and/or alternator for free and help you find the perfect replacement.
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Coolant Temp Warning |
Your engine is overheating; stop driving and turn your vehicle off. Check your coolant level, make sure your fan(s) are working and the radiator cap is holding pressure. Do not drive the vehicle until you have a fix in place.
Learn the basics on Cooling System malfunctions and maintenance.
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Transmission Temperature |
Your transmission fluid is too hot, and there is a risk of transmission failure. Check transmission fluid and coolant levels. Do not drive the vehicle until the cause of the overheating has been addressed.
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Oil Pressure Warning |
Your oil pressure is low, and the level needs to be checked. If oil level is normal, the engine requires service. Do not start, run or drive until required service has been performed.
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TPMS (Tire Pressure Monitoring System) |
You have one or more tires with low pressure, or a sensor that needs replaced. Check your tire pressure to determine whether air needs to be added or the vehicle needs a new TPMS sensor.
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Brake System |
You likely have either low brake fluid or a failure in brake components. Check your brake fluid level; also, make sure your parking brake is fully released. Do not drive until issues have been addressed.
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Low Brake Fluid Indicator |
Your brake fluid is low; check the fluid level and add the appropriate amount, or take your vehicle in for service. You could have a leak or worn pads.
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Low Brake Pad Warning Indicator |
Your brake pads are worn and need to be replaced before your rotors are affected.
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Gas Cap |
Chances are, your gas cap is just loose, but it could be missing. Your Check Engine light may come on soon if you don't remedy the issue.
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Security System Indicator |
The ignition switch is locked and requires the proper transponder-equipped key to start. If lit steadily while the vehicle is on, the security system may be malfunctioning.
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Lamp Out |
You have a headlight that is burned out or malfunctioning.
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Washer Fluid Reminder |
Fill your windshield washer fluid reservoir as soon as possible.
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Engine Start System Fault Indicator |
Your electrical system (possibly your starter) is faulty; stop by and let one of our Parts Professionals test your starter for free.
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DPF Light (Diesel) |
This light indicates that the diesel particulate filter requires service so that engine power is not lost.
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DEF Light (Diesel) |
This light indicates that the diesel exhaust fluid (DEF) is low and needs to be topped off.
