Chevrolet Silverado Classic 2007, Owner'S Manual

Page: 128 / 676

Testing the Alarm
The alarm can be tested by following these steps:
1. From inside the vehicle, lower the driver’s
window and open the driver’s door.
2. Activate the system by locking the doors with
the RKE transmitter.
3. Get out of the vehicle, close the door and wait
for the security light to go out.
4. Then 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 vehicle’s headlamps flash, check to see if the
horn works. The horn fuse may be blown. To
replace the fuse, see Fuses and Circuit Breakers
on page 602.
If the alarm does not sound or the vehicle’s
headlamps do not flash, see your dealer for
service.
Passlock
®
Your vehicle has the Passlock
®
theft-deterrent
system.
Passlock
®
is a passive theft-deterrent system.
Passlock
®
enables fuel if the ignition lock cylinder
is turned with a valid key. If a correct key is
not used or the ignition lock cylinder is tampered
with, fuel is disabled.
If the engine stalls and the security light flashes,
wait until the light stops flashing before trying
to restart the engine. Remember to release the key
from START as soon as the engine starts.
If the engine is running and the security light
comes on, you will be able to restart the engine if
you turn the engine off. However, your
Passlock
®
system is not working properly and
must be serviced by your dealer. Your vehicle is
not protected by Passlock
®
at this time. You
may also want to check the fuse. See Fuses and
Circuit Breakers on page 602. See your dealer
for service.
In an emergency, call the GM Roadside
Assistance Center. See Roadside Assistance
Program on page 646.
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