OnStar Services

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Gasoline Specifications (U.S. and Canada Only)
At a minimum, gasoline should meet ASTM specification D 4814 in the United States or CAN/CGSB-3.5 or 3.511 in Canada. Some gasolines contain an octane-enhancing additive called methylcyclopen ...

Programmable Automatic Door Locks
Your vehicle is equipped with an automatic lock/unlock feature which enables you to program your vehicle’s power door locks. You can program this feature through the Driver Information Center (D ...

Door Locks
CAUTION: Unlocked doors can be dangerous. • Passengers, especially children, can easily open the doors and fall out of a moving vehicle. When a door is locked, the handle will not open it. ...