2007 Chevrolet Tahoe Owner's Manual - Page 136

The theft-deterrent system will not activate if you lock the doors with a key, the manual door lock, or the power door lock switch. It activates only if you use the RKE transmitter. You should also remember that you can start your vehicle with the correct ignition key if the alarm has been set off. Here is how to avoid setting off the alarm by accident: • If you do not want to activate the theft-deterrent system, the vehicle should be locked with the door key after the doors are closed. • Always unlock a door with the RKE transmitter. Unlocking a door any other way will set off the alarm if the system has been armed. If you set off the alarm by accident, turn off the alarm by pressing unlock on the RKE transmitter or by placing the key in the ignition and turning it to START. 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 564. If the alarm does not sound or the vehicle's headlamps do not flash, see your dealer for service. 136