Truck disabled by some sort of electronic or software issue

[marc_hanna]

Since last Wednesday the 8th, my truck has had a strange issue that the dealer has been unable to fix. So far, the problem seems to be triggered by preconditioning the cabin through the Fordpass app. Basically, the truck is completely immobilized. Accessories will come on, but the truck cannot be shifted out of park. In order to get the truck into neutral, for towing purposes, you cannot use the instructions in the manual, but rather you have to press in both the brake and the accelerator with the accessories on and then pull it into neutral and press the temporary neutral button.

The first time it happened was after a day of driving, and the 12v battery simultaneously failed. We are not sure if these are related or coincidental. There was a stop vehicle immediately alert and a PWS alert. The Start button will not go solid when pressed, it will only flash.

Each time it was “fixed”, three times now, the technician was able to drive the truck and everything seemed fine. The common event before each occurrence, was preconditioning the cabin, which failed, according to the app.

Fixes so far include: replacement of 12v battery, which was done next day, and major software update of all systems which took 2 full days.

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[Whammy Bar]

Get a loaner. Keep doing it. Count 30 days. Contact buyback team.

 

[TaxmanHog]

Fixes so far include: replacement of 12v battery, which was done next day, and major software update of all systems which took 2 full days.

Did they use a high capacity 12v power supply when loading all the updates, they might have stressed the replacement 12v battery as well!!!!!!!!!!!!!!!!!!!!!!

 

[marc_hanna]

Get a loaner. Keep doing it. Count 30 days. Contact buyback team.

Dealer doesn’t have any loaners available.

 

[marc_hanna]

Did they use a high capacity 12v power supply when loading all the updates, they might have stressed the replacement 12v battery as well!!!!!!!!!!!!!!!!!!!!!!

I have no idea.

 

[Grumpy2]

I have no idea.

The exterior power supply is important from other histories

 

[marc_hanna]

The exterior power supply is important from other histories

Interesting, do you by any chance have a few more details that I can pass along? It’s hard to convince the service guys that some other guys on a forum said “such and such” is the problem.

 

[TaxmanHog]

Interesting, do you by any chance have a few more details that I can pass along? It’s hard to convince the service guys that some other guys on a forum said “such and such” is the problem.

Pick any thread the techie guys are discussing here

https://www.f150lightningforum.com/forum/forums/fdrs-forscan-programmers-scanners-tuners.69/

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