OnStar Services

See also:

Retained Accessory Power (RAP)
The following accessories can be used for up to 10 minutes after the engine is turned off. • Audio System • Audio Steering Wheel (if equipped) • Clock • Power Windows • Sunroof (if eq ...

Engine Oil Additives/Engine Oil Flushes
Do not add anything to the oil. The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protectio ...

Shifting Into Park
WARNING: It can be dangerous to get out of the vehicle if the shift lever is not fully in P (Park) with the parking brake firmly set. The vehicle can roll. If you have left the engine running, ...