Is there any log file somewhere that I can look at to see what's prompting it to power off? Initially I thought it was the car charger/cable itself, so I bought a new one on New Years but even with the new one it is still happening. So it's either the actual car port itself, or a problem with the phone?
I did have a Nexus 5 before this Moto X and it never powered off on me so I'm not convinced it's the phone. I did notice occasionally the Nexus 5 would stop charging though. I'd have to unplug it and plug it back in but the N5 never powered down on me.
And also, when I plug into USB to charge via wall wart charging or PC charging, the phone never powers down. It's strictly in the car.
Thanks for any help!