Using this Manual
To quickly locate information about the vehicle, use the Index in the back of the manual. It is an alphabetical list of what is in the manual and the page number where it can be found.
See also:
When to Check and Change Lubricant
It is not necessary to regularly check front axle fluid unless there is a leak
suspected or an unusual noise is heard. A fluid loss could indicate a problem. Have
it inspected and repaired. ...
Navigation
OnStar navigation requires the Directions and Connections service plan.
Push to receive directions or have
them sent to the vehicle navigation screen. Destinations can also be forwarded to
the v ...
Problems with Route Guidance
Inappropriate route guidance may occur under one or more of the following conditions:
You have not turned onto the road indicated.
Route guidance may not be available when using automatic rerout ...