Buick rendezvous remote reciever in rear door

Question edited for clarity/
Question moved from MISC to model category.

Try flooding the lock with WD40.

If that doesn't work, call out a mobile auto locksmith, you need the fobs.

There is a linkage rod that connects the door key lock to the door lock. It is probably disconnected.

Transmitter Programming
Important: All transmitters which are to be recognized by the remote control door lock receiver (RCDLR) must be programmed in a single programming sequence. If the system is placed in program mode it will erase all previously programmed transmitters upon the receipt of the programming signal from the first transmitter. Up to 4 transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other vehicles that are in the keyless entry program mode. This prevents the programming of the transmitters to the incorrect vehicle.
Install a scan tool.
Use the scan tool in order to access programming: Vehicle Control System/Computer Integrating System/Module Setup/BCM/Program Key Fobs.
Press the START soft key on the scan tool.
Important: The scan tool must stay connected until all of the transmitters are programmed.
Press and hold the LOCK button and the UNLOCK button simultaneously on one transmitter. After a delay of 5-10 seconds, the scan tool will indicate that the transmitter is programmed.
Repeat the previous step in order to program up to 4 transmitters.
Remove the scan tool.
Operate the transmitter functions in order to verify correct system operation.

Search Results

2002 Buick Rendezvous Problems, Defects & Complaints

www.carcomplaints.com/Buick/Rendezvous/2002/
5 days ago - The 2002 Buick Rendezvous has 580 problems & defects reported by Rendezvous owners. The worst complaints are engine, accessories ...

If you are referring to the suspension air pump, it is automatic and will only operate if necessary to re-level the vehicle. If the vehicle is not leveling properly, check the level sensor at the rear axle for proper operation.

Visit an on-line parts supplier and purchase a new switch/touchpad for inside of the rear handle. Local parts supplier probably won't have it. You can replace it yourself. I did when I owned one of these part pits.

if the fob is ever dropped or tossed on a counter the circuit has a resistor with two little solder on joints that can break off causing this problem. open it up and check
resolder if its broken off

I'm having the same problem with my 2006 Rendezvous, I can't unlock it with the Unlock button of the remote but the Liftgate button does work. The Unlock button used to unlock all the doors and the liftgate, now it only unlocks the doors.

Steve.

Open rear door, remove the screws holding the light into the car frame. Pull out the whole light package, you can now easily access the bulbs.

1. Close all doors.
2. Press and hold the Unlock button on door lock switch on drivers door.
Hold until instructed to release.
3. Insert and remove key from ignition 2 times. Do Not turn ignition.
4. Insert key in ignition a third time and leave key in ignition. Do Not turn ignition.

5. Release door lock switch on drivers door panel.
A Chime will sound 3 times indicating that you are in programming mode.
6. Press both the Lock and Unlock buttons on the remote up to 30 seconds.
A chime will sound 2 times if remote has programmed successful.
7. Repeat step 6 if you are programming additional remotes.
8. Remove key from ignition to exit programming mode.