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C4 - DS4 Owners :: Forums :: Citroen C4 Picasso and Grand C4 Picasso (B78) 2013 onward :: C4 Picasso and Grand C4 Picasso (B78) Ice and Satnav questions

After firmware update alarm keeps triggering

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Author Post
mjnash   
Wed May 16 2018, 11:56am
Member No: #38745
Joined: Jan 08 2015
Location: Gloucester
Hi,

I've just updated the firmware in my 66 plate C4 Picasso flair from 21.05.90.42_NAC-r0 dd 2017-07-27 to 21.06.47.34_NAC-r0.

I had no issues with the update at all. Took 40 minutes but completed ok.

Now everytime I lock the car, 30 seconds later the alarm goes off. Have tried disabling the proximity detection, but it still triggers.

Never had a problem before the update.

Any ideas?

TIA
jsg1163   
Thu May 17 2018, 06:26am
Member No: #50650
Joined: Mar 09 2018
Location: Birmingham
Try to disconnect the battery and wait for 20-30 mins, this should reset a lot of things and hopefully your issue too.

Make sure you put the car in gear as if the battery is disconnected for a long time, the electronic brake may not work.
 

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