See also:

Potential Issues
Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five ...

DVD Messages
The following errors may be displayed on the video screen: Disc Format Error: This message will be displayed if a disc is inserted upside down, if the disc is not readable, or if the format is n ...

Engine Coolant
The cooling system in your vehicle is filled with DEX-COOL® engine coolant. This coolant is designed to remain in your vehicle for five years or 150,000 miles (240 000 km), whichever occurs first ...