Disabling Auto Start Stop permanently?

[RDH43]

I honestly don't care if its on there...just default to off and everyone's happy...In the drive through on a nice windows down day is the only time it'd be semi useful anyhow...Luckily its not working on my 25 Maverick. It quit after a month or so...and I'd never want it fixed.

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[Gregs24]

I'll bet it's well north of $20 to have AS/S. I don't even think the switch is a separate part any more is it? If it's an integrated solid state piece, that's not 20 quid ( quid are like bucks, right? )

'17-'20 when Ford rolled it into more models, it was a switch. You could reverse it to make it default to off :-) Zero cost mod. Or you could jump it to make the switch do nothing. IIRC, there may have been minor trimming. I got the switch dongle to not permanently update and default it to off. I thought I remembered reading that switch wasn't easily modified or replaced ( got a Dark Horse, so don't have that bug feature in my Mustang ). I've even used it after both the stereo upgrade and defaulting it to off. It's rare, but I have like when stuck in parking lot traffic getting away from the beach. But otherwise, it scrams my amps when I restart and I don't like the lag between start up and full power available from the engine.

The brilliance of this action is that we're not mandating that manufacturers remove it, we're simply returning the decision to them on whether or not new models should have it. Honestly, I don't know how that will play out because as we see, the Mustang is a small portion of sales, and I don't know the number of suburban and urban dwellers are going to not care.

I'd venture that the majority of US performance car buyers won't want it and I'd expect subsequent model years of more performance oriented cars won't have it active.



IF Ford were of a mind to do this AND they could source a cheaper, lighter battery, starter, possibly cabling and center stack assembly, and could save money per unit in the market place then yes I could see them strongly consider reverting in a future model year.
That's a lot of "IFs".

The battery on a properly sized system with AS/S on won't degrade sufficiently like the wife's Highlander. F150s got it in I think 2017, and my Rap never had an issue with it until I disabled it in '19 if I recall correctly. Tiny European econoboxes came with the tech years before hand.

Agree 100% - every car I have had with S/S the battery has lasted much longer because it is bigger. It has been around for 30 years so there is plenty of evidence for this.

It is all going to be irrelevant anyway going forward. The old S/S systems fitted to the Mustang has been replaced by mHEV systems with an ISG which are cheaper (less parts) and much better in terms of restart speed. But even that is just a stepping stone to FHEV systems. Pure petrol engines will soon be gone (timescale depending on location) and it is worth noting that performance car companies such as Ferrari and McLaren have already gone down this route. Even the '53' and '63' Mercs are hybrids now.

 

[Zig]

Agree 100% - every car I have had with S/S the battery has lasted much longer because it is bigger. It has been around for 30 years so there is plenty of evidence for this.

It is all going to be irrelevant anyway going forward. The old S/S systems fitted to the Mustang has been replaced by mHEV systems with an ISG which are cheaper (less parts) and much better in terms of restart speed. But even that is just a stepping stone to FHEV systems. Pure petrol engines will soon be gone (timescale depending on location) and it is worth noting that performance car companies such as Ferrari and McLaren have already gone down this route. Even the '53' and '63' Mercs are hybrids now.

Batteries last longer when deep sleep activates earlier?

 

[smurfslayer]

Batteries last longer when deep sleep activates earlier?

Two things can be true at the same time. The batteries _are_ bigger - at least bigger spec, some may not be larger in physical size or heavier, but, the battery operating the starter must be able to handle the duty cycle. Same with the starter.

Now, that said, all the integrated networking, bells and whistles ( I think ... bits and bobs for you wrong side drivers ) create a drain on the battery - all batteries.
as I've maintained before - MY '24 has never gone to deep sleep, or had a dead battery and if you're having repeated charge issues, get the issue(s) fixed.

I just replaced my '17 Raptor battery last year at 8 years, 11 months in service - would have made 9 years but when I got the sleep notice - very rare on the Rap, I was shaking off an injury and didn't get out to the truck for about 3 weeks. :-(

A properly running car/truck will maintain the battery beyond 4-5 years.

 

[Gregs24]

Two things can be true at the same time. The batteries _are_ bigger - at least bigger spec, some may not be larger in physical size or heavier, but, the battery operating the starter must be able to handle the duty cycle. Same with the starter.

Now, that said, all the integrated networking, bells and whistles ( I think ... bits and bobs for you wrong side drivers ) create a drain on the battery - all batteries.
as I've maintained before - MY '24 has never gone to deep sleep, or had a dead battery and if you're having repeated charge issues, get the issue(s) fixed.

I just replaced my '17 Raptor battery last year at 8 years, 11 months in service - would have made 9 years but when I got the sleep notice - very rare on the Rap, I was shaking off an injury and didn't get out to the truck for about 3 weeks. :-(

A properly running car/truck will maintain the battery beyond 4-5 years.

100%

My S550 at 6 years old was fine on its original battery. Very rarely went into deep sleep unless left for over a week or so. My S650 has been the same over the first 16 months.

 

[Zig]

Two things can be true at the same time. The batteries _are_ bigger - at least bigger spec, some may not be larger in physical size or heavier, but, the battery operating the starter must be able to handle the duty cycle. Same with the starter.

Now, that said, all the integrated networking, bells and whistles ( I think ... bits and bobs for you wrong side drivers ) create a drain on the battery - all batteries.
as I've maintained before - MY '24 has never gone to deep sleep, or had a dead battery and if you're having repeated charge issues, get the issue(s) fixed.

I just replaced my '17 Raptor battery last year at 8 years, 11 months in service - would have made 9 years but when I got the sleep notice - very rare on the Rap, I was shaking off an injury and didn't get out to the truck for about 3 weeks. :-(

A properly running car/truck will maintain the battery beyond 4-5 years.

Two weeks is an awful short time for a battery sitting on the shelf (as in when car is shutdown)

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