Buick cruise control suddenly failed, and the engine fault light came on.

Buick cruise control suddenly failed, and the engine failure light came on because of engine failure and throttle sensor failure.

1. Engine failure: If the vehicle has engine failure, the cruise control may fail and the engine failure light will light up. At this time, it may be necessary to diagnose and repair the vehicle, find out the problem and repair it.

2. Throttle sensor failure: The cruise control system needs to monitor the position of the accelerator pedal through the throttle sensor of the vehicle. If the sensor fails, it may lead to cruise control failure and engine failure light.

The above are the main reasons that may lead to the failure of cruise control and the lighting of engine fault light, so it is necessary to go to 4S shop or professional automobile maintenance organization for diagnosis and maintenance in time.