Hello,

My 2014 CX-5 Touring is having some strange door lock issues. When unlocking the door with the fob, the door seems to unlock and lock repeatedly. Both fob batteries are new and this doesn't happen when locking the car, only unlocking. Any ideas or debugging steps would be appreciated. Thanks!

 

I played around with the car a bit more, and have some additional info to share.
1. Press unlock, single door opens (expected)
2. Open the door, all doors lock (unexpected)
3. Close the door, all doors unlock (unexpected)

 

It is worth going into the settings and toggling the lock settings on and off and back to where you want, or go to factory defaults for the locking and then reset to your preferences.

I just had my car taken apart for an accident, and when it was returned, the TSR said the speed limit was 87, and I felt like 50 indicated was way too slow. I pulled over, and even though settings were in mph, everything was reading in kph. Toggle from mph to kph, save and then go back to mph and save and all was right with the world.

 

Almost sounds like there's a short or other fault happening.


Might be worth going through the settings, to re-set things to how you think it should work.

2014 Mazda CX-5 Owners Manual @ MazdaUSA.com.

Door Lock controls, general @ pp 3-14 to 3-16.

Personalization Features section, for door lock controls @ p 9-11.

 

Reset was unsuccessful, still the same behavior.

 

I did more research and my best guess is that the front body control module needs to be replaced. I took the car back to the dealer where we bought it two weeks ago (2014 touring with 76k miles) and they came to the same conclusion. They were nice enough to cover both the cost of the part and the labor to replace it. Hopefully this resolves the issue!