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Attempted 3.7.0 update (failed) and now car won't lock or unlock.

2.5K views 11 replies 10 participants last post by  RechargeHard  
Is this a known issue with a known solution?
Yes, this issue has happened to several owners including me a few years ago.

One solution is to hard reset the vehicle by temporarily disconnecting both the 12v supply and the BuB (TCAM backup battery) for a few minutes.
A sure method to disconnect the 12v is to remove the negative lead to the battery.

The BuB location can be found in the following post:
https://www.xc40forum.com/posts/37258/

If this sounds too difficult to do yourself, just bring it in to get serviced.