This is a Factory OEM (Original Equipment Manufacturer) Pontiac Montana 3 Button keyless entry remote, aka "key fob".
OEM electronics in a new aftermarket case.
2005-2006 Pontiac Montana
Obtain all remote transmitters for this vehicle.
1. Start with the key out of the ignition, drivers door is open, all other doors and trunk closed and drivers door is unlocked.
2. Perform these steps within 5 seconds. A. Insert the key into the ignition (Do NOT Turn it) and Pull key out. B. Insert the key into the ignition (Do NOT Turn it) and Pull key out.
3. Perform these steps within 40 seconds. A. Close then open the drivers door. B. Close then open the drivers door. C. Insert the key into the ignition (Do NOT Turn it) and Pull key out.
4. Perform these steps within 40 seconds. A. Close then open the drivers door. B. Close then open the drivers door. C. Insert the key into ignition and leave it in the ignition. D. Close the drivers door. E. Turn the ignition to ON (Do NOT Start or crank engine) then back to OFF. F. Remove the key from the ignition.
5. Within 3 seconds, the power door locks should lock then unlock automatically indicating successful entry into programming mode. Return to step 1 if the door locks do not cycle at this point.
6. Perform these steps within 40 seconds. A. Press the lock and unlock buttons on the remote simultaneously for 1.5 seconds. B. Immediately after letting go of the lock and unlock buttons, Press the lock button by itself and hold for 2 seconds. Within 3 seconds, the door locks should lock and then unlock once indicating successful programming. If the door locks cycle twice, repeat steps A and B in step 6 as the remote was not accepted. C. Repeat steps A and B in step 6 for each new remote.
7. Open drivers door.
Obtain all remote transmitters for this vehicle.
1. Remove key from ignition.
2. Remove the BCM PRGRM fuse from fuse box. You will need to open the passenger door to access the panel. Use the fuse chart to properly identify the BCM PRGRM fuse.
3. Close all doors.
4. Insert key and turn ignition switch to ACC. (ACC is turning the key back toward you).
5. Within 1 second turn the ignition to OFF then back to ACC. (OFF is the position where you can remove your key).
6. Open then close any door.
7. An acoustic sound will be heard after closing the door indicating the vehicle is in programming mode.
8. Hold the LOCK and UNLOCK buttons on the remote for about 15 seconds until two chimes are heard. You may hear a chime after about 5 seconds but you must wait about 15 seconds for a second chime. That remote is now programmed.
9. Repeat step 8 for any additional remotes including working ones.
10. Remove key from ignition and replace BCM PRGRM fuse.
11. Test all remotes.
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