Question about 2006 Buick LaCrosse

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Remote often fails to unlock the doors on my 2006 Buick Lacrosse. Seems to work better from farther away.

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  • I HAVE HAD SIMILAR ISSUES WITH THE KEY FOB, OR "REMOTE" . UPON FURTHER INVESTIGATION, I OPENED UP THE REMOTE AND FOUND THAT THE THIN, SHINY METAL FRAME ENCLOSING AND CRADLING THE COIN-LIKE BATTERY (CR2025) HAD BEEN SEPARATED FROM THE SOLDER POINTS ON THE SILICON CHIP.

  • I ALSO DISCOVERED THAT ON THE REVERSE SIDE OF THE CHIP (BUTTONS AND RUBBER COVERING SIDE) THAT THERE WAS DIRT, DEBRIS, AND OTHER GUNK WHICH WILL DEFINITELY SHORT CIRCUIT, CAUSING YOUR REMOTE'S BATTERY TO BE DISCHARGED OR MISFIRE. THIS IS BEST OBSERVED WHEN YOU EXPERIENCE A "STICKY" BUTTON EFFECT ONCE THE "LOCK" BUTTON IS DEPRESSED ONCE, BUT THE CAR FEED BACK SUGGESTS 2 PUSHES OF THE REMOTE WERE DETECTED. ANOTHER EXAMPLE: I COULD HAVE SWORN I PUSHED "UNLOCK" TWICE (UNLOCKING REAR DOORS )ON THE FOB/REMOTE BUT ONCE I GET TO THE CAR, DOOR IS STILL LOCKED! WTF.

SOLUTION:

KEEP KEY FOB / REMOTE CLEAN, REPAIR/REPLACE BROKEN BATTERY +/- CONNECTIONS IN THE REMOTE, REPLACE LITHIUM BATTERY

Posted on Apr 02, 2011

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Posted on Jan 02, 2017

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1 Answer

How do I program the keyless remote on a 2006 Buick LaCrosse


2006 Buick Rendezvous Remote Programming For Buick Rendezvous / Intrigue / AztekObtain all remote transmitters for this vehicle.
1. Close all doors.
2. Press and hold the Unlock button on door lock switch on drivers door.
Hold until instructed to release in step 6.
3. Insert key into the ignition cylinder but do not turn it.
4. Remove key from ignition and then insert key into ignition without turning ignition cylinder and remove key.
5. Insert key in ignition a third time and leave key in ignition. Do Not turn ignition.
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7. 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.
8. Repeat step 7 if you are programming additional remotes.
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My mom has a 2006 Buick Lacrosse. The driver's side front door will not open from the outside or inside. Her normal mechanic says they'd have to remove the interior panel, but they'd have to be able to...


Your Mom's mechanic is correct. You need to remove the panel. I'd first try just removing the plastic behind the lock slide if you can and pulling on the control rod it's attached to, just to see if that helps.
To remove the panel you will likely destroy it as that's the only way to get in there. Not a huge problem as there are likely quite a few replacements available at local scrapyards. (best to find one before tearing up the old one). Hopefully, the problem isn't in the latch because you can't remove that without opening or destroying the door. (most times you can make the latch work at least once even if it's broken though) I know you are thinking there must be a better solution, but unfortunately there isn't.
Good Luck!!!!

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The driver side door locks and unlocks but it wont open at all


Looks like the lock itself has a problem in this that's why it wont open or there's something that makes the door stuck even though you lock/unlock it, It's best to replace the side door lock immediately. or better check if there's any elements that are inside the side door that makes the door jammed.

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