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Fixed - Key Won't Unlock Driver's Door

Discussion in 'VF Holden Commodore (2013 - 2017)' started by wetwork65, Sep 27, 2019.

  1. wetwork65

    wetwork65 A wet business

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    Hi - just discovered that my car keys (both) won't turn in the door lock, but are able to start my car (so turn OK in the ignition lock). So it is as though the door and ignition locks are different.
    This is a series 1 SV6 so it is a simple key and I have had the car since 1 year old - ex Holden owned.
    Never noticed this before, but my fob battery died, so I tried to unlock manually and became concerned this is a new problem.
    Is there something "special" in the door lock I have missed?
    Thanks for any help, advice, corrections before I trudge off to a locksmith.
     
  2. Bazza0123

    Bazza0123 New Member

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    Exact same problem in my sv6, bloody car alarm started after i couldn't unlock it after a few turns.

    Edit: Both keys work in the ignition but not the door. When I turn it counter-clockwise to unlock it, its sometimes gets caught for a second like the mechanism is stuck. Locking doesn't work either.

    Double Edit: Clearing the gunk out of the keys and a little bit of fiddling fixed my issue.
     
    Last edited: Sep 30, 2019
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  3. stooge

    stooge Well-Known Member

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    The key(s) might be worn down by ignition use and might be past the tolerance of what the doors barrel allows because the door lock is pretty much never used.

    The door could have been replaced(smash repair) and the barrel was never matched to the key.

    You can try wiggling the **** outta it to try make it work but it is probably best to get a locksmith out to check it out.
     
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  4. 426Cuda

    426Cuda SUBLIME!

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    I never use the key in the door lock barrel. But, I'd swear counter clockwise locks it.
     
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  5. wetwork65

    wetwork65 A wet business

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    Yep, thanks @stooge
    The second possibility is pretty much my thinking, despite being ex Holden at the time and sold to me as certified collision free.
     
  6. Fu Manchu

    Fu Manchu Well-Known Member

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    That would be funny
    [​IMG]
     
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  7. Bazza0123

    Bazza0123 New Member

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    Haha, well I have never been able to unlock or lock it with the key so I wouldn't even know lol.
    Not sure if both keys would be "worn down" in my case since the previous owner never used the second one.
    My mate said he unlocked my car first try with my key and the car alarm went off anyway. Guess I gotta jiggle it around tomorrow to see what I can do.
     
  8. XR WOT

    XR WOT New Member

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    When you lock your car using the remote it locks the car & sets the alarm. When you use the key in the door it will unlock the door but does not turn the alarm off. So that's why it went off when your friend used the key. Why it worked for him & not you ?? One of life's great mysterious.
     
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  9. Bazza0123

    Bazza0123 New Member

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    Thanks for that. I hate that it happens instantly so you cant even rush to the ignition to turn it off before its waking the neighbourhood up. I understand it wouldn't happen if i locked it with the key but goddamn its a hassle. Clearing the gunk out of the keys and a little bit of fiddling fixed my issue anyway. Once the car got unlocked/locked once using the key it was fine so i guess it was just a bit stuck after not being used for years.
     
    Last edited: Sep 30, 2019
  10. XR WOT

    XR WOT New Member

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    It's so if anyone tries to break into your car the alarm goes off ???
    Get a battery for you key bro save yourself some Hassel.
     
  11. stooge

    stooge Well-Known Member

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    if they smash a window no but if they open the door the horn will start beeping.
     
  12. wetwork65

    wetwork65 A wet business

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    Well I had more of a fiddle with the lock. B***ger me it's fixed!
    Thought I would do a how-to to help others. Sorry I'm an Engineer, not a Tradesman, so I worked it out by trial and error.
    The photo shows the lock retention screw (small torx head). To access, remove the round plug in the side of the door, near the lock.
    Unscrew the torx until the lock drops out in your hand.
    20191008_150649_resized_1.jpg

    When I played around on the workbench, I inserted the key and tried turning the lock. I found it turned by a gnat's amount when fully inserted, but obviously the key worked in the lock, or it would not turn at all. The lug that rotates with the lock barrel was impacting on the cage, stopping it rotating. See the photos.

    20191008_150625_resized_1.jpg 20191008_150634_resized_1.jpg
    Seems the plastic piece behind the lug (keeps it tight?) had expanded over time, pushing the lug against the cage (will be obvious when lock is out of the door). Also small crack in the plastic part.
    I filed a very small amount of metal from the cage to prevent the interference, and used silicone spray to help clean off the metal filings.
    Reinstalled by putting back in place and tightening the torx screw, replace the plug. Works perfectly now with both keys.
    Job done and glass of wine in hand (later on).
     
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  13. Fu Manchu

    Fu Manchu Well-Known Member

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    Not throwing a like until you say what the wine was.
     
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  14. lmoengnr

    lmoengnr Well-Known Member

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    Hope it was as good as this one was.:cool:
    2019-10-08 23.17.16.jpg
     
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  15. wetwork65

    wetwork65 A wet business

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    Nup - just a NZ Sav Blanc
     
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