OnStar Services

See also:

When to Check
Check your tires once a month or more. Also, check the tire pressure of the spare tire. ...

Ending a Call
Press to end a call. ...

Recommended Fuel
If the vehicle has a 2.4L L4 engine (VIN Code C), use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise, commonly r ...