OnStar

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How to Reset the Engine Oil Life System
The Engine Oil Life System calculates when to change the engine oil and filter based on vehicle use. Whenever the oil is changed, reset the system so it can calculate when the next oil change is ...

If the Off Indicator is Lit for an Adult-Size Occupant
If a person of adult-size is sitting in the right front passenger seat, but the off indicator is lit, it could be because that person is not sitting properly in the seat. If this happens, use t ...

Finding a Program Type (PTY) Station(RDS and XM™)
To select and find a desired PTY perform the following: 1. Press the TYPE button to activate program type select mode. TYPE and a PTY displays. 2. Turn the TYPE knob or press and release the TY ...