See also:

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if ...

Lane Departure Warning (LDW) Light
For vehicles with the lane departure warning system, this light briefly comes on green, while starting the vehicle, to indicate that it is working. If it does not, have the vehicle servic ...

Conditions in Which Remote Start Will Not Work
The remote vehicle start feature will not operate if: The key is in the ignition (key access) or if the key is in the vehicle (keyless access). The hood is not closed. The hazard warning fl ...