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System Limitations
OnStar uses the global positioning
system (GPS) to locate your vehicle
for functions such as route guidance
and roadside assistance. GPS is
affected by structures that can
obstruct the signal, such as tunnels,
parking structures, and tall buildings.
It may not be possible for OnStar to
pinpoint your location if you are in or
near such structures.
OnStar uses cellular technology to
communicate with your vehicle.
Cellular coverage varies by location,
which may affect the ability to
establish a connection, or the quality
of the connection.
Onstar has antennas in the rear
window (on each side of the high-
mount brake light) and on the roof
near the high-mount brake light. To
avoid reception problems, do not
cover the window antennas with
metal stickers, and do not cover the
roof antenna with cargo or bicycles
on a roof rack.
When you turn off your vehicle's
ignition, OnStar goes into low-power
mode. After 48 hours, it switches to
sleep mode to conserve your vehicle's
battery power. Features such as
remote door unlocking and
misplaced vehicle assistance will not
work after your vehicle has been
parked for more than 48 hours.
OnStar is a registered trademark of
the OnStar Corporation.
As required by the FCC: This device
complies with Part 15 of the FCC rules.
Operation is subject to the following two
conditions: (1) This device may not
cause harmful interference, and (2) this
device must accept any interference
received, including interference that
may cause undesired operation.
Changes or modifications not expressly
approved by the party responsible for
compliance could void the user's
authority to operate the equipment.
This device complies with Industry
Canada Standard RSS-210. Operation is
subject to the following two conditions:
(1) this device may not cause
interference, and (2) this device must
accept any interference that may cause
undesired operation of the device.
OnStar
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