Immobilizer; Immobilizer Operation - GMC 2016 Acadia User Manual

3. Get out of the vehicle, close
the door, and wait for the
security light to go out.
4. Reach in through the window,
unlock the door with the
manual door lock, and open
the door. This should set off the
alarm.
If the alarm does not sound when it
should, but the headlamps flash,
check to see if the horn works. The
horn fuse may be blown. To replace
the fuse, see Fuses and Circuit
Breakers 0 265.
If the alarm does not sound or the
headlamps do not flash, see your
dealer for service.

Immobilizer

See Radio Frequency Statement
0 346.

Immobilizer Operation

This vehicle has PASS-Key
(Personalized Automotive Security
System) theft-deterrent system.
PASS-Key III+ is a passive
theft-deterrent system.
The system is automatically armed
when the key is removed from the
ignition.
The system is automatically
disarmed when the key is turned to
ON/RUN, ACC/ACCESSORY,
or START from the LOCK/OFF
position.
You do not have to manually arm or
disarm the system.
The security light comes on if there
is a problem with arming or
disarming the theft-deterrent
system.
When the PASS-Key III+ system
senses an incorrect key, the vehicle
does not start. Anyone using a
trial-and-error method to start the
vehicle will be discouraged because
of the high number of electrical key
codes.
If the engine does not start and the
security light on the instrument
panel comes on when trying to start
®
III+
the vehicle, there may be a problem
with the theft-deterrent system. Turn
the ignition off and try again.
Keys, Doors, and Windows
If the engine still does not start, and
the key appears to be undamaged,
try another ignition key and check
the fuses. See Fuses and Circuit
Breakers 0 265 for additional
information. If the engine still does
not start with the other key, the
vehicle needs service. If the vehicle
does start, the first key may be
faulty. See your dealer who can
service the PASS-Key III+ to have a
new key made. In an emergency,
contact Roadside Assistance. See
Roadside Assistance Program
0 340.
It is possible for the PASS-Key III+
decoder to learn the transponder
value of a new or replacement key.
Up to 10 keys may be programmed
to the vehicle. The following
procedure is for programming
additional keys only. If all currently
programmed keys are lost or do not
operate, you must see your dealer
or a locksmith who can service
PASS-Key III+ to have keys made
and programmed to the system.
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