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What does the trac off engine light mean in a 99 Oldsmobile Alero mean?

On a 1999 Oldsmobile Alero, the "TRAC OFF" light indicates that the traction control system is deactivated. This means the car's computer is not intervening to prevent wheel spin in slippery conditions.

While not necessarily indicating a problem, it's important to understand *why* it's off. It's usually deactivated manually by the driver via a button (often marked "TRAC OFF" or a similar symbol), but it could also illuminate due to a fault in the traction control system itself. If the light stays on consistently *without* you turning it off, you should have the car checked by a mechanic to diagnose any potential problems with the system's sensors, wiring, or other components.