GM Service Manual Online
For 1990-2009 cars only

The following steps describe the arming procedure:

  1. Close all of the windows.
  2. Place the shift control in PARK, if equipped with an automatic transmission.
  3. Turn the ignition switch to the LOCK position.
  4. Remove the ignition key.
  5. Open any door.
  6. Lock the doors with the power lock switch or with the remote transmitter.
  7. Close the doors.

The vehicle alarm is now armed.

Activation of any of the following components will sound the alarm:

    • Door lock switches
    • Rear compartment lid release switch
    • Shock sensor

The system will also sound if the wrong key resistance is detected. The armed system will briefly flash the red lamp every two seconds.

The system can also be armed with the windows open. The system will be disarmed only when the unlock button on the remote transmitter is pushed or the ignition key is ON.

Important: Locking the doors with the lock control slide knob will not arm the system.

When any door is opened during the arming procedure, the system goes into an armed wait mode.

The following actions will occur if the remote transmitter is used in order to arm the system:

    • Closing the doors will arm the system.
    • The horns chirp twice.
    • The parking lamps flash.

If the door switch was used to arm the system, only the parking lamps will flash. If the rear compartment lift window panel is open or ajar during arming procedure, the horn will only chirp once.

Passive Arming

If the ignition is turned off and a door is opened, the system will automatically arm 8 seconds after all doors are closed regardless if the doors are locked or not. In all other cases, the system will wait 30 seconds after all doors are closed before automatically arming. The parking lamps will flash when the system arms. The vehicle is set to active arming mode from the factory. Passive arming can be enabled. Refer to Feature Customization .

Locking without Arming

In order to lock the vehicle without arming the system, manually lock the doors with the inside lock knobs or front door lock key and close the doors.

Disarming the System

When the system is disarmed, the red lamp is off. The rear compartment lift window panel button on the remote transmitter will disarm the rear compartment lift window panel and the shock sensor, in order to allow access to the rear compartment. The doors will remained armed. When the window panel is closed, in 5 seconds the rear compartment lift window panel will be armed again. In order to disarm the entire system, use either of the following 2 steps:

    • Press the UNLOCK button on the remote transmitter.
    • Turn the ignition ON with the proper key.

Driver's Door Delay

Unlocking the door or the rear compartment lift window panel with the use of a key will not disarm the system. The body control module (BCM) is factory set with a driver's door delay. The driver's door delay gives the driver 8 seconds to turn the ignition key ON after the driver's door is unlocked with a key. The driver's door delay can be set for no delay time if the customer prefers disarming the alarm with the transmitter. If the driver's door delay is set for no delay time, any entry without the transmitter will activate the alarm. Refer to Feature Customization .

Deactivating the Alarm

To deactivate the alarm when activated and functioning, use the following procedure:

    • If the alarm is activated by pressing the panic mode button on the remote transmitter, press the panic mode button again. Pressing the panic button a second time will deactivate the alarm.
    • If the alarm is activated by the shock sensor, door or rear lid release switch, the alarm is deactivated by any of the following actions:
       - Turn the ignition ON. Use the proper key.
       - Press any button on the remote transmitter.
       - Press UNLOCK in order to complete the following actions:
   • Silence the alarm
   • Unlock the driver door
   • Disarm the system
       - Press LOCK in order to complete the following actions:
   • Silence the alarm
   • Keep the doors locked
   • Keep alarm system activated
       - Press the rear compartment lift window panel button in order to complete the following actions:
   • Silence the alarm
   • Unlock the lift window panel
   • Disarm the lift window panel
       - Press the panic button in order to complete the following actions:
   • Silence the alarm
   • Keep the doors locked
   • Keep the alarm system activated
    • The alarm will deactivate after 2 minutes.
    • If the alarm is activated by an improper ignition key, press any button on the remote transmitter in order to deactivate the alarm.

System Components

Remote Control Door Lock Transmitter

The remote transmitter is the primary device to disarm the theft deterrent system. If the vehicle has universal theft deterrent, the remote transmitter has a panic button. Press this button to sound the car alarm; press it again to turn the alarm off. As with the other functions, operation of this feature is subject to the range of the transmitter.

Shock Sensor

The chock sensor is located near the spare tire in the rear of the vehicle. Its sensitivity has been set to comply with various local regulations requiring vehicle contact to set off the alarm. It can be adjusted if more or less sensitivity is desired. If sensitivity is increased too much, it may give false alarms caused by gusts of wind or other natural events that may shake the vehicle. To adjust, remove the label covering the adjustment knob and adjust as desired. Turn clockwise to increase sensitivity. Turn counterclockwise to decrease sensitivity. The red lamp on the shock sensor illuminates at shock levels that would cause the full (2-minute) alarm to sound. Different levels of shock are required on the various body panels and windows to activate the sensor, depending on the material (plastic, steel or glass) and distance from the shock sensor. Two levels of alarms are available through the shock sensor.

    • Two horn blasts and lamp flashes for non-threatening blow to the vehicle.
    • A full 2 minute alarm for harder blows to the vehicle.

The shock sensor is ignored by the system during ignition ON, when the rear compartment lift window panel is open, when the alarm is disarmed, 5 seconds after the horn sounds, or when customized to be ignored.

Theft Deterrent Relay

The theft deterrent relay controls the park lamps. The BCM provides a ground path for the relay when the theft deterrent is activated.