GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-16417394) - 2023 - CRC - 4/26/22
Infotainment System
159
At times, other interference such as the
satellite condition, road configuration,
condition of the vehicle, and/or other
circumstances can affect the navigation
system's ability to determine the accurate
position of the vehicle.
This system might not be available or
interference can occur if any of the
following are true:
.
Signals are obstructed by tall buildings,
trees, large trucks, or a tunnel.
.
Satellites are being repaired or improved.
For more information if the GPS is not
functioning properly, see
Vehicle Positioning
At times, the position of the vehicle on the
map could be inaccurate due to one or more
of the following reasons:
.
The road system has changed.
.
The vehicle is driving on slippery road
surfaces such as sand, gravel, or snow.
.
The vehicle is traveling on winding roads
or long, straight roads.
.
The vehicle is approaching a tall building
or a large vehicle.
.
The surface streets run parallel to a
freeway.
.
The vehicle has been transferred by a
vehicle carrier or a ferry.
.
The current position calibration is set
incorrectly.
.
The vehicle is traveling at high speed.
.
The vehicle changes directions more than
once, or the vehicle is turning on a turn
table in a parking lot.
.
The vehicle is entering and/or exiting a
parking lot, garage, or a lot with a roof.
.
The GPS signal is not received.
.
A roof carrier is installed on the vehicle.
.
Tire chains are installed on the vehicle.
.
The tires are replaced or worn.
.
The tire pressure for the tires is incorrect.
.
This is the first navigation use after the
map data is updated.
.
The 12-volt battery has been disconnected
for several days.
.
The vehicle is driving in heavy traffic
where driving is at low speeds, and the
vehicle is stopped and started repeatedly.
Problems with Route Guidance
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.
.
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 Maps.
