TODDIO63

Working perfectly. Have about 21000k now. 7000k+ since fixed.

TODDIO63

Working perfectly. 7000k+ since fixed.

Rmuesi

So took my truck to the dealership this morning. They ran some tests and turns out they needed to do a BMS reset as well.

I asked them what caused the BMS reset to be needed and they seemed unsure, mentioned some stuff about if the battery runs too low it messes with the sensors.

I did leave it for around a month this winter without driving it. After starting it back up was when the auto start stop started having problems. The fact that the auto start stop would work and then not work back and forth makes it seem that theres a defect in the design.

WHen asked how to prevent this in the future when i'm away on travel, the service guy said to have someone turn on the engine every other day for 5 minutes, which i thought was comical.

Bubbabiker

Recommend getting a battery maintainer (AGM compatible) if planning on not driving the truck for a period of time.

Mynew2017f150

Auto Stop Start is a piece of garbage and it's time Ford gives those of us that hate it a permanent disable feature! How about a reversed button, HAVE TO TO TURN IT ON IF WEWANTIT!

Brand

Nice way to contribute absolutely nothing to this thread.

remltr

Forscan is your friend. See sticky at top of this forum.

Iamraiderpower

Judging by his post, I'm betting forscan is not something he would use...

RubyFX4

Auto start-stop is so terrible Ford made it standard on all 2018's !!!

bigj_16

This thread brings up a point. On newer vehicles, particularly last 10 years or so, a bad battery can cause all kinds of weird issues, even ones that don't seem electronically related. It's a good idea to check that when you are having almost any problem, other than the absolutely obvious.