GM Service Manual Online
For 1990-2009 cars only

Keyless Entry System Operation Base

Unlocking the Doors

Important: There are three different transmitters. Pickup trucks use a transmitter the does not have the Rear 2X push button on the face of the transmitter, Also Luxury vehicles use a red panic push button the face of the transmitter.


Object Number: 264910  Size: SH

Press the UNLOCK button on the transmitter once in order to unlock the driver's side door.

Press the UNLOCK button twice within no sooner than half a second and no later than three seconds time in order to unlock the remaining doors. This includes the liftgate on utility vehicles which are equipped with this feature.

Locking the Doors


Object Number: 264907  Size: SH

Press the LOCK button on the transmitter in order to lock all of the vehicle doors at once.

Press the LOCK button a second time in order to verify that the doors are locked. A horn will sound in order to verify that the doors are locked.

Endgate/Liftgate Window Release (Rear 2X)


Object Number: 264910  Size: SH

Press the REAR 2X button on the transmitter twice, within five seconds, in order to unlatch the liftgate window. Set the vehicle in park or neutral in order to operate the remote control door lock transmitter.

Keyless Entry System Operation Luxury

Unlocking the Doors


Object Number: 339921  Size: SH

Press the UNLOCK button (2) on the transmitter once in order to unlock the driver's side door.

Press the UNLOCK button (2) twice within no sooner than half a second and no later than three seconds time in order to unlock the remaining doors.

Locking the Doors


Object Number: 339921  Size: SH

Press the LOCK button (1) on the transmitter in order to lock all of the vehicle doors at once.

Endgate/Liftgate Window Release


Object Number: 339921  Size: SH

Press the REAR 2X button (3) on the transmitter twice, within five seconds, in order to unlatch the liftgate window. The vehicle needs to be in park or neutral in order to operate this function.

Alarm/Panic Mode


Object Number: 339921  Size: SH

The theft-deterrent system provides a fourth RED button on the transmitter. This button is the alarm/panic button (4). If this button is pressed the vehicle's horn will sound and the headlamps will flash. To turn this feature off, either push the panic button again or turn the ignition to the RUN position. This feature will not work if the ignition is on or if the transmitter is 9 m (30 feet) or more away from the vehicle.