Inappropriate route guidance can occur under one or more of the following conditions: • The turn was not made on the road indicated.
• Route guidance might not be available when using automatic rerouting for the next right or left turn.
• The route might not be changed when using automatic rerouting.
• There is no route guidance when turning at an intersection.
• Plural names of places might be announced occasionally.
• It could take a long time to operate automatic rerouting during high-speed driving.
• Automatic rerouting might display a route returning to the set waypoint if heading for a destination without passing through a set waypoint.
• The route prohibits the entry of a vehicle due to a regulation by time or season or any other regulation which may be given.
• Some routes might not be searched.
• The route to the destination might not be shown if there are new roads, if roads have recently changed, or if certain roads are not listed in the map data
To recalibrate the vehicle's position on the map, park with the vehicle running for two to five minutes, until the vehicle position updates. Make sure the vehicle is parked in a location that is safe and has a clear view of the sky and away from large obstruction.
Vehicle Positioning
If the System Needs ServiceBuying New Tires
GM has developed and matched specific tires for the vehicle. The original equipment
tires installed were designed to meet General Motors Tire Performance Criteria Specification
(TPC Spec) system rating. When replacement tires are needed, GM strongly recommends
buying tires with the same TPC Sp ...
Removal Procedure
Warning: Refer to Approved Equipment for Collision Repair Warning in the
Preface section.
Warning: Refer to Glass and Sheet Metal Handling Warning in the Preface section.
Disable the SIR System. Refer to SIR Disabling
and Enabling.
Disconnect the negative battery cable. Refer to ...
Automatic Dimming Rearview Mirror
To adjust the inside rearview mirror, hold the rearview mirror in the center
and move it to view the area behind the vehicle.
For vehicles with an automatic dimming rearview mirror, the mirror will automatically
reduce the glare from the headlamps from behind.
The dimming feature and the indic ...