GM Service Manual Online
For 1990-2009 cars only

Inappropriate route guidance may occur under one of the following conditions:

    • When the vehicle did not turn onto the road indicated by the system,
    • when route guidance is not available for the next right or left turn,
    • when the route may not be changed during automatic rerouting,
    • when there is no route guidance because of a turn at an intersection,
    • when plural names of places are displayed,
    • when a delay in automatic rerouting occurs because of high speed driving,
    • when automatic rerouting displays a route returning to a set waypoint which was missed originally,
    • when the route prohibits the entry of a vehicle due to a regulation by time or season or any other regulation which may be given,
    • when a route cannot be found, or
    • when the route to the destination is not shown because of recently changed or unlisted roads on the DVD.

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 rerouting for the next right or left turn.
    • The route may not be changed when using automatic rerouting.
    • There is no route guidance when turning at an intersection.
    • Plural names of places may be announced occasionally.
    • It may take a long time to operate automatic rerouting during high-speed driving.
    • Automatic rerouting may display a route returning to the set waypoint if you are 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 may not be searched.
    • The route to the destination may not be shown if there are new roads, if roads have recently changed or if certain roads are not listed on the map DVD. See Ordering Map DVDs .

To relocate the vehicle position on the map, see Setup Menu .