OnStar Services

See also:

Engine Coolant
The cooling system in the vehicle for all engines and the intercooler is filled with DEX-COOL®. This coolant is designed to remain in the vehicle for 5 years or 240 000 km (150,000 mi), whic ...

Following Distance
Stay at least twice as far behind the vehicle ahead as you would when driving the vehicle without a trailer. This can help to avoid heavy braking and sudden turns. ...

Maintenance Replacement Parts
Replacement parts identified here by name, part number, or specification can be obtained from your dealer. ...