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Discussion Starter · #1 ·
So to give some background, bought this 2014 qx60 hybrid a month ago and had zero issues and a clean infiniti service history (the service guy pulled up the national service history).
i just had a software update done at Infiniti dealership on Tuesday Feb 14th since i was noticing some hesitation from a stop light. They did a s/w update on the HEV and CVT modules (said there was one available for both which it needed). The SUV was nearly smooth until right now, friday afternoon, Feb 17th.

My wife backed out of the garage, heard a small noise as if she had had hit the garbage can but there was nothing of course so she proceeded to put it in drive and at the first stop sign in our neighborhood, she pressed the brake pedal and there was no brakes! she eased off the gas, tried to repeatedly press the brakes again and the brakes were solid hard (as if the vacuum/hydraulics were off), eventually she rolled to a stop. She tried to put it in park and the shifter will not budge from drive, She pressed the ignition to switch it off and it would not turn off. after a couple of attempts and some details missing from the extreme scare she got, she somehow got it into park but the ignition just would not switch to off.

I got there and tried to switch it off too and just could not start the engine or have it switch off, all gauge lights on like its in ignition on, finally it gave me a DCA/LDW (something like that) malfunction warning and i had to had it towed to Infiniti. The tow truck guy put a jumper on it and it seemed to start up but when he was unloading it, it again needed a jump to start up to come down however i had not seen any indication in the past to assume this is a low battery issue. And in no way should there be ever loss of braking which is the scariest part. Glad the mrs. was still in the neighborhood and not out on the roads.

Being a newbie, cant post the youtube link but search there for 2014 qx60 total loss of power

Anyone seen this before? Thoughts?
 

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New one on me.
 

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Discussion Starter · #3 ·
Update: It turned out to be a dying 12V battery. Yep, you heard that right. Not the high voltage Ni-CD or Li-on whatever pack they use, the simple 12V battery was dying, caused a low voltage and all sorts of electric malfuctions. I couldn't believe it either, but evidently the service associate was nice enough to tell me there had been a second one come in on the same day with the exact same issue and they have never heard of this before. Seems like a huge flaw to me, if its going to cause malfuctions in the engine start/stop and specially the braking system!
 
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