What Causes the Maintenance Light to Illuminate on the Buick Regal Dashboard?

1 Answers
StEzra
07/29/25 1:12pm
When the maintenance light illuminates on the Buick Regal dashboard, it indicates that the vehicle has encountered a fault severe enough to affect the smooth operation of the engine. Below are the specific reasons: 1. Faulty engine sensors: Critical sensors such as the camshaft sensor, crankshaft sensor, and coolant temperature sensor, which play vital roles in engine operation, may malfunction, accompanied by abnormal engine operation and shaking. 2. ABS system sensor failure: A malfunction in the wheel speed sensor can trigger the ABS warning light. 3. Low engine oil level: Insufficient engine oil can lead to severe engine wear, necessitating immediate oil replenishment.
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