Question about 2002 Buick Century

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2002 Buick Century auto door unlock requires

2002 Buick Century auto door unlock has begun to require several attemps to lock the car.

The auto lock works just fine. I have replaced the battery twice just to be sure. Why does it lock easily but is difficult to unlock? What can I do to correct the problem.

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  • Anonymous Mar 28, 2014

    Door locks won't work, either with the key or the keyless remote. Haven't used car this winter. If the battery is dead does it effect the locks? Key goes in fine, just won't turn.

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  • Buick Master
  • 5,568 Answers

It may be failing contacts in your remote; these are normally little carbon buttons that can either get fouled with contaminents or wear out if made too thin.
You may have to replace the remote to regain normal function. 

Posted on Mar 06, 2009

  • Sandra Macy Feb 19, 2013

    Car was hit and totaled soon after the post .after it was hit. Very sad, I loved the car

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METHOD 1 - NO TOOLS REQUIRED

  1. Sit in the vehicle driver's seat.
  2. Remove the ignition key from the ignition lock cylinder.
  3. Close all of the vehicle's doors.
  4. Press and HOLD the door "LOCK" switch to the "Unlock" position.
  5. Insert and remove the ignition key twice (without rotating the ignition lock cylinder).
  6. Insert the ignition key a third time leaving the key in the ignition lock cylinder. The ignition must be in the "OFF" position.
  7. Release the door "LOCK" switch from the "Unlock" position (three fast chimes will be heard when the remote control door lock receiver enters the programming/diagnostic mode).
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