OnStar Services

See also:

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, ...

Feature Settings Menu Items
The following are customization features that allow you to program settings to the vehicle: DISPLAY IN ENGLISH This feature will only display if a language other than English has been set. This ...

Checking Coolant
The vehicle must be on a level surface when checking the coolant level. Check to see if coolant is visible in the coolant surge tank. If the coolant inside the coolant surge tank is boiling ...