"Trac Off" and "ABS" dashboard indicators on 2001 Buick Park Avenue

come on randomly afetr 3 to 10 minutes. The car seems to perform fine, but the idiot ligts do come on randomly. after I turn the ignition off and later drive agina the ligths are off for a while then come back on. is this some module or sensor intermittance or a bad ground?

Asked by for the 2001 Buick Park Avenue
1 answer
Often the ABS sensors at the wheels get contaminated with metallic dust from the brakes and cause intermittent failures like you describe. I've been able to clean them with a blast of compressed air, wearing appropriate eye and face protection. It doesn't always work, but it's worth a try. Or bring it to a mechanic who works on Traction and ABS systems.
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