Engine Coolant
The cooling system in the vehicle is filled with DEX-COOL engine coolant. This coolant is designed to remain in the vehicle for 5 years or 240 000 km (150,000 mi), whichever occurs first.
The following explains the cooling system and how to check and add coolant when it is low. If there is a problem with engine overheating, see Engine Overheating .
See also:
Accessories and Modifications
Adding non-dealer accessories or making modifications
to the vehicle can affect vehicle performance and safety, including such things
as airbags, braking, stability, ride and handling, emissions s ...
First Engine Oil Change After Every
40 000 km/25,000 Miles
• Fuel system inspection for damage or leaks. ...
How OnStar Service Works
Automatic Crash Response,
Emergency Services, Crisis Assist,
Stolen Vehicle Assistance, Vehicle
Diagnostics, Remote Door Unlock,
Roadside Assistance, Turn-by-Turn
Navigation, and Hands-Free ...