The appearance of these lights means a diagnostic trouble code (DTC) has been stored in the vehicle's computer. You need to diagnose the problem before attempting any "reset." Here's the proper approach:
1. Diagnose the Problem: The most reliable way to find out what's causing the lights is to have the vehicle's computer scanned for diagnostic trouble codes (DTCs). This can be done at:
* An Auto Parts Store: Many auto parts stores (like AutoZone, Advance Auto Parts, etc.) offer free code reading services. They can tell you what the codes mean, which will help pinpoint the problem.
* A Mechanic: A qualified mechanic will have the tools and expertise to diagnose the issue accurately and repair it safely. This is the recommended option, especially if you're not comfortable working on your vehicle.
2. Address the Underlying Issue: Once you know the DTCs, you (or a mechanic) can address the root cause. Common causes for brake and ABS light illumination include:
* Low brake fluid: Check your brake fluid level in the master cylinder reservoir. If it's low, you need to find and fix the leak before driving.
* Worn brake pads or shoes: Worn brake pads or shoes will trigger the warning lights. They need to be replaced.
* Faulty wheel speed sensor: A problem with one of the wheel speed sensors can activate the ABS light.
* Faulty ABS module: The ABS module itself could be malfunctioning.
* Other electrical issues: Issues with wiring, connectors, or other components in the braking system.
3. Clear the Codes (After Repair): *Only after* you've identified and repaired the problem causing the warning lights, you can clear the codes. Many code readers allow you to clear codes. Sometimes, simply disconnecting the battery negative terminal for a few minutes can clear the codes, but this isn't guaranteed. However, the lights will likely re-appear if the underlying problem wasn't fixed.
In short: Don't try to reset the lights without fixing the problem. Get the codes read and address the issue to ensure your safety. Driving with these lights on is incredibly risky.
