See also:

Maintenance Schedule
Owner Checks and Services At Each Fuel Stop - Check the engine oil level. See Engine Oil. Once a Month - Check the tire inflation pressures. See Tire Pressure. - Inspect the tires fo ...

Specification
Use and ask for licensed engine oils with the dexos1™ approved certification mark. Engine oils meeting the requirements for the vehicle should have the dexos1 approved certification mark. T ...

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 ...