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Thread: 2010 door lock issue

  1. #1
    Join Date
    Oct 2005
    Location
    chicago
    Posts
    457

    2010 door lock issue

    HI guys, need some advice, my son just bought a used (40K) CTS 2010, within the last few weeks, his drivers door doesn't open with all the other doors. with the fob key, they all lock fine, but on occasion when he unlocks the doors, the drivers door will not open, frustrating as hell having a nice car like this and you have to get in through the passenger side when this occurs. The dealers says perhaps the window actuator? although they told me it has to malfunction when he brings it in, problem is its on and off. has this been an issue with other cars? or are we just lucky? any help appreciated


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  3. #2
    sandcracker21 is offline Cadillac Owners Fanatic
    Automobile(s): 2008 CTS4 DI
    Join Date
    Nov 2011
    Location
    Chicago, IL
    Posts
    225
    Something similar happened to mine. I have the keyless access and the driver side door stop responding to both that and the fob. I had to use the actual physical key to open it. I ended up getting a fixed at the dealership, some module in the door broke but it was under warranty

  4. #3
    illbethere1 is offline Cadillac Owners Fanatic
    Automobile(s): 2005 3.6 cts, 2011 AWD coupe cts
    Join Date
    Feb 2012
    Location
    Chicago IL.
    Posts
    202

    Re: 2010 door lock issue

    The fob battery usually holds a suffient charge for about 2 yrs before it starts to glitch affecting the locks dependant on use of course. The actuators are a culprit also which cost about $250 to replace per.

  5. #4
    Join Date
    Oct 2005
    Location
    chicago
    Posts
    457

    Re: 2010 door lock issue

    so we will change the battery and try that first, good suggestion

  6. #5
    CTS-AWD is offline Cadillac Owners Member
    Automobile(s): 2010 CTS4
    Join Date
    Apr 2012
    Posts
    11

    Re: 2010 door lock issue

    It is probably the door microswitch that failed. I have this problem with my front passenger door that can now be only opened from the interior handle. When I pull on the outside handles I can hear the doors unlocking but it is not possible to open that door. There are 2 microswitches per door, one that locks/unlosks the doors and the other one operate the door actuator.

  7. #6
    Join Date
    Oct 2005
    Location
    chicago
    Posts
    457

    Re: 2010 door lock issue

    Can you educate me on the difference a micro switch and an actuator? or are they the same?

  8. #7
    arw1510 is offline Cadillac Owners Connoisseur
    Automobile(s): 2004 CTS 3.6, 2004 SRX 4.6 AWD, 2012 CTS 3.6 DI AWD
    Join Date
    Oct 2008
    Posts
    1,229
    Quote Originally Posted by turbomangt View Post
    Can you educate me on the difference a micro switch and an actuator? or are they the same?
    Google it.

    One is a switch.

    One is an actuator

  9. #8
    928S is offline Cadillac Owners Connoisseur
    Automobile(s): 2008 CTS 3.6L DI RWD, GMPP new engine 11/2013
    Join Date
    Oct 2005
    Location
    USA
    Posts
    2,092


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