How to reset the ABS warning light on a Buick?

[StMargaret]

Check the fluid level in the master cylinder reservoir; if it is too low, add brake fluid to the normal level. Inspect the electric return pump relay and its wiring; replace the relay if it is faulty.

[CameronDella]

When I see the ABS warning light illuminated on a Buick, my first reaction is not to ignore it. ABS stands for Anti-lock Braking System, and the light indicates that the brake assist function may have failed. During emergency braking on slippery roads, the wheels are prone to locking up, which is very dangerous. I recommend first stopping to check if the wheel speed sensors are dirty—a common issue is signal errors caused by dust buildup. Clean them with a soft cloth, then restart the vehicle to see if the light turns off. If it remains on, the problem might be a loose wiring harness or a blown fuse; check the relevant positions in the fuse box. However, avoid attempting deeper repairs on your own to prevent damaging the module. For safety, take the car to a professional repair shop as soon as possible for diagnosis using an OBD tool to read and resolve the fault codes. A friend of mine delayed addressing the issue for a few days and nearly had an accident due to wheel slippage during braking. So don’t delay—the ABS system is crucial for daily driving safety.