See also:

Other Navigation Services Available from OnStar
OnStar eNav: Allows subscribers to send destinations from Google Maps™ and MapQuest.com to their Turn-by-Turn Navigation or screen-based navigation system. When ready, the directions will b ...

If a Tire Goes Flat
It is unusual for a tire to blow out while driving, especially if the tires are maintained properly. If air goes out of a tire, it is much more likely to leak out slowly. But if there ever is a bl ...

Lockout Protection
This feature stops the power door locks from locking when the key is in the ignition and a door is open to protect you from locking your key in the vehicle. If the power lock switch is pressed w ...