Auto Start-Stop Rarely Works

[thebladerunnr]

Anyone else’s auto start-stop rarely ever work despite not turning it off? Not upset about it, just wondering if I’m the only one. Mostly drive in eco too.

‘21 BadSqautch V6 auto, 65k miles for context

Sponsored

 

[SpringTXOR]

Battery might be going bad.

 

[HighVelocity]

My ASS functions properly 100% of the time.

 

[HotLap]

Could be that your battery is starting to go bad. ASS stopped working on my Raptor several months before my battery went bad. New battery installed and ASS was working again.

 

[thebladerunnr]

Sounds like it might be time for a new battery… thanks for the input fellas!

 

[brkdncr]

Put your battery on a charger (follow instructions to not mess up bss).

I think if you replace a battery there’s a bss calibration workflow too.

 

[JT58Bronc]

I went through this as I don't drive my Bronco much. When it sits for a few days or even a couple days it takes time (sometimes 80 or so miles) for the battery to charge while you drive it. I now put mine on a trickle charger after it sits for a week or so and the start/stop works immediately when the battery is fully charged.

Also when it's really hot out- like 90 or so degrees it won't work regardless. I don't know if it is related to outside ambient temperature or engine temperature. when it is less than 89 or 90 and the battery is fully charged it always works. There is a display for it to show if it is working normally on the settings somewhere.

 

[Brian_B]

There’s a whole list of things that can cause it to not work. Most are somewhat obvious - AC cranked up, to hot or cold outside, vehicle in Park, on a steep incline, low battery, Driver turned it off, etc

The bad part is there isn’t a good way to tell. And for people who just happen to notice it not working in places where it usually does - yeah it’s usually the battery. There is a good chance it’s just low and not bad - and charging it overnight to top it up will fix it right up without needing a replacement. When AGMs start going bad, they won’t hold the charge, so if you need to “top it up” frequently then it’s on its way out.

 

[Mjasi3]

you live in a very hot area. ASS won't activate if the AC is going

 

[CarmeloS]

Anyone else’s auto start-stop rarely ever work despite not turning it off? Not upset about it, just wondering if I’m the only one. Mostly drive in eco too.

‘21 BadSqautch V6 auto, 65k miles for context

I don't see what the issue is here

 

[thebladerunnr]

I don't see what the issue is here

Like I said, I’m not upset about it lol. I was just curious

 

[Kurto125]

Anyone else’s auto start-stop rarely ever work despite not turning it off? Not upset about it, just wondering if I’m the only one. Mostly drive in eco too.

‘21 BadSqautch V6 auto, 65k miles for context

Mine does (or doesn't) that, too. 2023 BB. I mostly drive in Eco as well.

 

[Bill K]

Anyone else’s auto start-stop rarely ever work despite not turning it off? Not upset about it, just wondering if I’m the only one. Mostly drive in eco too.

‘21 BadSqautch V6 auto, 65k miles for context

Put your battery on a tender and keep the AC off, it will start working more...

 

[Bill K]

My ASS functions properly 100% of the time.

Especially when it's placed in my Bronco Seat

Sponsored