See also:

Owner Checks and Services
At Each Fuel Stop • Check the engine oil level. See Engine Oil on page 10‑7. Once a Month • Check the tire inflation pressures. See Tire Pressure on page 10‑62. • Inspect the tir ...

Onstar.com
The website provides access to account information, manages the OnStar subscription, and allows viewing of videos of each service. Get subscription plan pricing and sign up for OnStar Vehicle Diag ...

What to Use
WARNING Adding only plain water or some other liquid to the cooling system can be dangerous. Plain water and other liquids, can boil before the proper coolant mixture will. The coolant warning syste ...