Rear doors wont unlock
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Rear doors wont unlock in Past Cadillac Vehicle Discussion; So I have kind of a weird problem my keyless fob only sometimes unlocks my back doors, the front and ...
  1. #1
    Ninjobitch's Avatar
    Ninjobitch is offline Cadillac Owners Member
    Automobile(s): 1991 Sedan Deville 4.9l
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    Rear doors wont unlock

    So I have kind of a weird problem my keyless fob only sometimes unlocks my back doors, the front and trunk work. Both front door unlock/lock switches WILL unlock all doors, but here's the real kicker the rear door unlock/lock switches will lock all doors but not unlock any child safety is turned off. Any ideas?

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  3. #2
    rodnok01's Avatar
    rodnok01 is offline Cadillac Owners Connoisseur
    Automobile(s): 98 DeVille, 97 DeVille d'Elegance
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    Re: Rear doors wont unlock

    Is it an option so FOB unlocks just frts? I know my PA you had to push unlock twice to unlock all the doors, do believe it could be changed in the DIC.

  4. #3
    Ninjobitch's Avatar
    Ninjobitch is offline Cadillac Owners Member
    Automobile(s): 1991 Sedan Deville 4.9l
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    Quote Originally Posted by rodnok01
    Is it an option so FOB unlocks just frts? I know my PA you had to push unlock twice to unlock all the doors, do believe it could be changed in the DIC.
    That is how it is supposed to work but it only does 1 out of 25 with brand new batteries. It seemed to work more when I first got the car but I do think I've gotten It to work in close to a month

  5. #4
    rodnok01's Avatar
    rodnok01 is offline Cadillac Owners Connoisseur
    Automobile(s): 98 DeVille, 97 DeVille d'Elegance
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    Re: Rear doors wont unlock

    I don't suppose you have another fob either...
    Could be the contacts are just about worn out on the Lock button on the fob.

  6. #5
    Ninjobitch's Avatar
    Ninjobitch is offline Cadillac Owners Member
    Automobile(s): 1991 Sedan Deville 4.9l
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    Quote Originally Posted by rodnok01
    I don't suppose you have another fob either...
    Could be the contacts are just about worn out on the Lock button on the fob.
    I do have another fob with the same problem

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