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All doors lock themselves when I close the driver's door |
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Scottishjohn
 
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  Member No: #48069
Joined: Apr 10 2017Location: Ireland |
Sadly my car has also developed this problem. Every time you close the passenger door the whole car locks itself and the wing mirrors fold in. It was recently serviced and they said the boot handle/switch needs replaced so that is ordered and I hope that fixes it. If not I'll take the door card off and check whats going on. Closing the door with the key in the lock in the open position keeps the car from locking but it doesn't fix the problem. |
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mossy2432
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 Member No: #36480
Joined: Jul 16 2014Location: bilston |
Ive had the same problem for a year or so did you ever solve it or find out what is was thank | ||||
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installer
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Member No: #55444
Joined: Jan 20 2020Location: Ireland |
First post on forum so hi guys... I bought a 2013 C4 grand Picasso 1 month ago and the other day this issue cropped up also. So out of the blue when closing the passenger door all the doors would lock, key in or out of ignition made no difference, I solved it thanks to a post in this thread and did so by locking the car with the fob, went to bed, got up the following morning and went straight to the passenger door and unlocked it with the key, not the fob, left the key in the lock and closed the door. This time the doors did not auto lock so I removed the key, opened and closed the door again and again no auto lock of the doors and issue is now resolved. I also checked if closing the door latch mechanism manually (before resolving the issue) with door open would trigger the locks and it did. |
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Daran
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Member No: #42454
Joined: Oct 24 2015Location: Ireland |
Same problem, close driver's door and all doors lock and mirrors fold, kids left inside, lucky 1 of them not yet strapped into seat so could open door. Any real fix for this issue? | ||||
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installer
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Member No: #55444
Joined: Jan 20 2020Location: Ireland |
Did you try locking and or unlocking using the key? Leave key in lock then open and close the door? | ||||
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Bilchu
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 Member No: #56191
Joined: Jun 03 2020Location: England |
I'm not sure whether you fixed this, however, try using the actual key to unlock the driver's door or passenger door, I had the same issue when the passenger's door would shut it would lock all doors, I then randomly tried to use the key in the door and it unlocked the door and problem solved!! | ||||
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Turmeric
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Member No: #60425
Joined: Jan 23 2023Location: UK |
I know the topic is old but I have the same problem and was wondering if any of you have the solution. I did try what was mentioned before but nothing helped. Any advice as to how to sort it out is welcome. | ||||
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Theitguy
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 Member No: #61446
Joined: Dec 04 2023Location: Middlesbrough |
Same problem *Solution* Put your key in the car drivers side door and open the car |
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looxuser
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  Member No: #30245
Joined: Apr 13 2013Location: poulton le fylde |
windyfishface wrote ... I have only just got my C4 GP and I closed my door and my doors all locked with my son in it... totally threw me... but my key doesn't seem to work properly even though they said they had replaced the battery and it was working. It has only happened the once today though, so not sure what's going on Still trying to work out what's happening with this.... I try and unlock with either mine or my partners buttons on key and it doesn't unlock, or activate the lights; so then you unlock with key manually, and put key in ignition drive it down the road, then get out and try and lock/unlock and then key then works. You can switch lights on, lock and unlock with buttons on key. I park up for a couple of hours go out and key doesn't work unless I manually use it in door... annoying. Any ideas please? |
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looxuser
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Member No: #30245
Joined: Apr 13 2013Location: poulton le fylde |
windyfishface did you ever get a solution please? Mine too has developed the same fault. | ||||
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DavidA
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Member No: #62758
Joined: Jan 03 2025Location: Kent |
And so to 2025. This problem still seems to be a mystery, although I appear to have solved it on my recently purchased car. A 2012 C4 Picasso that was locking all the doors and folding the mirrors when the front passenger door was closed. (Unless the key was in the ignition). After trying the above advice which I am grateful for, I still had the problem. The solution that I stumbled upon was as follows: With the offending door open, I used a screwdriver to rotate the door lock to the closed position. Sure enough all the other doors locked and the mirrors folded. I then unlocked the car with the fob, but the open door remained locked. After a couple more attempts with the fob, I tried to unlock the open door with the key but it still remained locked. This was very stressful. Not least because I had stupidly attempted this research in a supermarket car park! I had tried moving the lock mechanism with the screwdriver but it would not move. In desperation I opened the adjacent rear passenger door to look at which way the lock rotated. When I went back to the previously misbehaving and stuck locked door, it was unlocked! I shut the previously bad front door, then the rear door and tested every combination of doors that I could. The problem has gone away. It is as if that door had simply become out of sync with the other three. I hope that helps somebody. Good luck, but don’t try it in a supermarket car park. |
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