OnStar Services

See also:

Safety Belt Care
Keep belts clean and dry. WARNING! Do not bleach or dye safety belts. It may severely weaken them. In a crash, they might not be able to provide adequate protection. Clean safety belts only wit ...

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, do no ...

Retained Accessory Power (RAP)
These accessories can be used after the engine is turned off: - Audio system (up to 10 minutes or driver door is opened). - Power windows, sunroof (if equipped), and power outlets (up to 10 minu ...