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My 2014 Maserati GranCabrio MC's ac turns on randomly during, oftentimes during hard braking and acceleration. Is this normal?
 

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Do you have sticky button? It is designed to automatically come on during start... mine would come on as well... it was sticky button for me so i went to ebay and caught a 2016 M145 control for $150... doesn’t pop on anymore during driving...
 

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No, my buttons work just fine. I know it comes on automatically when I start the car, but if I turn it off from there, the ac will turn on by itself.
 

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There is a climate control module that may be faulty but honestly it's like shooting in the dark. You're really going to need to get it in to a workshop with the proper diagnostic tools to help determine what the cause of the issue is. The only thing we could imagine to try beforehand is to simply disconnect the battery overnight, make sure the battery is charged fully and then reconnect it the next morning, sometimes the old italian reboot does the trick. Just know you'll need your radio code and you'll have to relearn and adjust the settings again. Also don't do this if you're about to go in for an emissions test as it can take a week or so to get through all the learning required for that and it would delay a smog test.

Hope that helps and sorry there isn't a better answer on this one.

Best Regards,
 

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Really interesting. Mine never turning on when start, but occasionally turning on while driving, same exactly situation like yours.
 

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I believe the interior temp sensor is right here. There is a vented slot with a sensor behind it. Maybe wipe it off?

I noticed it when I took my gauges out. Again, my climate control would come as well during driving and I replaced it and it doesn’t do it anymore.
128658
 

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I believe the interior temp sensor is right here. There is a vented slot with a sensor behind it. Maybe wipe it off?

I noticed it when I took my gauges out. Again, my climate control would come as well during driving and I replaced it and it doesn’t do it anymore. View attachment 128658
Thanks for your reply.
I'll be sure to try that in the morning before I go for a drive. Hopefully, that fixes this issue.
 

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Discussion Starter #9
There is a climate control module that may be faulty but honestly it's like shooting in the dark. You're really going to need to get it in to a workshop with the proper diagnostic tools to help determine what the cause of the issue is. The only thing we could imagine to try beforehand is to simply disconnect the battery overnight, make sure the battery is charged fully and then reconnect it the next morning, sometimes the old italian reboot does the trick. Just know you'll need your radio code and you'll have to relearn and adjust the settings again. Also don't do this if you're about to go in for an emissions test as it can take a week or so to get through all the learning required for that and it would delay a smog test.

Hope that helps and sorry there isn't a better answer on this one.

Best Regards,
I wanted to try a couple things that a few of the members on this forum would suggest doing before taking my car to the shop. I was planning on taking my car in if no one was able to suggest anything
 

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I wanted to try a couple things that a few of the members on this forum would suggest doing before taking my car to the shop. I was planning on taking my car in if no one was able to suggest anything
One more thing I hadn’t noticed in the past...

Next time it pops on = turn both sides to 74, turn snowflake off then turn fan down until climate unit turns off leaving 74 as the last temp it remembers. I realize that the ”snowflake” does come on when temp is set above 74.
 

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Discussion Starter #11
One more thing I hadn’t noticed in the past...

Next time it pops on = turn both sides to 74, turn snowflake off then turn fan down until climate unit turns off leaving 74 as the last temp it remembers. I realize that the ”snowflake” does come on when temp is set above 74.
My temp is set at 60, so would that have any effect? What does the snowflake button do? I just assumed that the snowflake button was to turn on the ac unit.
 

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Discussion Starter #13
I'm not exactly sure what I did, but the issue has seemed to stop. Hopefully it doesn't come back, but I tried each of the recommended fixes, so maybe that could be the reason. Thanks for all the help.
 
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