Chevrolet 2011 Suburban User Manual download pdf (Page 54)

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Chevrolet Tahoe/Suburban Owner Manual - 2011

2-16 Keys, Doors and Windows

Immobilizer Operation

This vehicle has PASS-Key

®

III+

(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 will come on if

there is a problem with arming or

disarming the theft-deterrent

system.

When the PASS-Key III+ system

senses that someone is using the

wrong key, it prevents the vehicle

from starting. 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 cluster comes on when trying

to start the vehicle, there may be a

problem with the theft-deterrent

system. Turn the ignition off and try

again.

If the engine still does not start, and

the key appears to be undamaged,

try another ignition key. At this time,

you may also want to check the

fuse. See Fuses and Circuit

Breakers on page 10‑39. 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.

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

for the vehicle. The following

procedure is for programming

additional keys only. If all the

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.

See your dealer or a locksmith who

can service PASS-Key III+ to get a

new key blank cut exactly as the

ignition key that operates the

system.

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