Bronco stalled out at a stop sign after diaabling the auto stop/start button. Car disabled and nothing would work. Tranny stuck in gear.

Texas Bronco

So here is the latest from the Ford dealer. They decided it needed the battery needed replacing.

A mechanic (they're called "technicians" now, I believe) told me the auto start/stop function monitors battery strength, and if the battery's power is low, it won't engage. (See my other post nearby.)

TK1215

Please keep us posted

I previously posted,
"For me, it's the auto stop/start function on a Badlands 4DR Lux. Three days and two trips ago I noticed it didn't turn the engine off at redlights, which is a function I first bad-mouthed but now utilize. Pressing the button on and off, no difference: whether the dash indicator indicated told me it was "on" or "off."
So I'll bring it up with my dealer tomorrow. Hopefully, just a settings adjustment I'm ignorant of."

I also posted that a mechanic suggested fuel as a factor, as I had put in two tankfuls of premium (mileage experiment). Funny, this no-auto-stop/start behavior did not develop until I was well into Premium Tankful #2. Last fill-up, about 35 miles ago was regular and just today the auto-stop/start function returned! So I'll go 500 miles or so on regular and see if there are any changes. Then I want to re-try premium for a bit.

Incidentally, here's my mileage according to my Fuelio app input:
08/27 Regular 20.18 mpg (mostly highway, heavy cargo, strange!)
09/09 Regular 18.09 mpg
09/15 Regular 16.19 mpg
09/21 Regular 15.81 mpg
10/09 Premium13.27 mpg
10/19 Premium15.22 mpg
10/28 Regular 15.83 mpg

My dash read-out is giving me 16.1->16.3 pretty consistently.

So for the extra money, and a possible feeling of extra pep and power (the placebo effect of putting a tiger in your tank?) I don't see the advantage of premium, unless somebody can make an informed argument based on engine engineering. But I might give Premium another couple of tankfuls later. But at current prices? 😖

I thought it was in the onboard computer. I never even knew it was on the dash. The last time I was in one of these things was at OffRoadeo on 10/13 of 2021. They never even talked about it other than, “leave your car running, it will start when you jump back in, in a few minutes”

It’s crazy how much information is available at the tip of our fingers

BostonBadlands

I previously posted,
"For me, it's the auto stop/start function on a Badlands 4DR Lux. Three days and two trips ago I noticed it didn't turn the engine off at redlights, which is a function I first bad-mouthed but now utilize. Pressing the button on and off, no difference: whether the dash indicator indicated told me it was "on" or "off."
So I'll bring it up with my dealer tomorrow. Hopefully, just a settings adjustment I'm ignorant of."

I also posted that a mechanic suggested fuel as a factor, as I had put in two tankfuls of premium (mileage experiment). Funny, this no-auto-stop/start behavior did not develop until I was well into Premium Tankful #2. Last fill-up, about 35 miles ago was regular and just today the auto-stop/start function returned! So I'll go 500 miles or so on regular and see if there are any changes. Then I want to re-try premium for a bit.

Incidentally, here's my mileage according to my Fuelio app input:
08/27 Regular 20.18 mpg (mostly highway, heavy cargo, strange!)
09/09 Regular 18.09 mpg
09/15 Regular 16.19 mpg
09/21 Regular 15.81 mpg
10/09 Premium13.27 mpg
10/19 Premium15.22 mpg
10/28 Regular 15.83 mpg

My dash read-out is giving me 16.1->16.3 pretty consistently.

So for the extra money, and a possible feeling of extra pep and power (the placebo effect of putting a tiger in your tank?) I don't see the advantage of premium, unless somebody can make an informed argument based on engine engineering. But I might give Premium another couple of tankfuls later. But at current prices? 😖

Hmm, now that is interesting…

BostonBadlands

A mechanic (they're called "technicians" now, I believe) told me the auto start/stop function monitors battery strength, and if the battery's power is low, it won't engage. (See my other post nearby.)

That makes sense. I'll let my mechanic know.

Some observations at 10k miles:

1. Truck is running very strong compared to when it was new: it really scoots now! ( I use premium, 91 here in Kali)
2. It burns/uses ZERO oil.
3. The auto trans can be shifted manually even not when in "Manual" mode. I really like this feature. Start/stop/speed up/slow down it goes right back to auto shifting. (Try it if you didn't know, I found out by accident, I use it to shift down going down grades..)
4. People complain about the hard top being noisy, I find that it is actually pretty quiet.
5. These tires on the SAS are actually quieter than the 35" Yokohama HD tires on my Duramax. And they ride softer.
6. My truck is still haunted: it continues to turn the lights on while parked, click, make sounds, lock/unlock the doors too. I've named it Christine the Haunted Bronco. Its actually funny now. (I even talk to it. I'm ok, when it starts talking back to me then I'm in trouble I suppose)
7. Average mileage, 60-70% highway is a solid 19.5 MPG. Some people ask me about it (then seems disappointed) when I tell them its right around 20. I tell them this: If you married a supermodel would you give a shit if she couldn't cook? Its like that to me. Its a specialty off road truck, I love it and I don't care, especially when I hear tundra's and tacomas getting the same or worse...
8. I put a Scangauge on it and the voltage shown in the dash display is usually higher than the Scangauge, from anywhere to .2 to .7 volts. (I trust the Scan Gauge much more, especially after using them for 15 years or more) AND now I can get coolant temp instead of that dumb C-H gauge which NEVER moves off of 4 bars after the first 10 minutes of driving...

There are several reasons the auto stop/start doesn’t activate at a stoplight. I feel there are far too few people who realize this.

From the manual:

AUTO-START-STOP
The system helps reduce fuel consumption by automatically shutting off and restarting the engine while your vehicle is stopped. The engine restarts when you release the brake pedal. Your vehicle may restart in some situations, for example:
To maintain interior comfort.To recharge the battery.

Note: Power assist steering is turned off when the engine is off.

WARNING: Apply the parking brake, shift into park (P), switch the ignition off and remove the key before you open the hood or have any service or repair work completed. If you do not switch the ignition off, the engine could restart at any time. Failure to follow this instruction could result in personal injury or death.

WARNING: The system may require the engine to automatically restart when the auto-start-stop indicator illuminates green or flashes amber. Failure to follow this instruction could result in personal injury. The Auto-Start-Stop system status is available at a glance within the information display. See Information Displays.

Enabling Auto-Start-Stop
The system is enabled every time you start your vehicle if the following conditions are met:

• You do not press the Auto-Start-Stop button.
• Your vehicle exceeds an initial speed of 3 mph (5 km/h) after the vehicle initially starts.
• Your vehicle is stopped.
• Your foot is on the brake pedal.
• The transmission is in drive (D).
• The driver door is closed.
• There is adequate brake vacuum.
• The interior compartment has cooled or warmed to an acceptable level.
• The front windshield defroster is off.
• The steering wheel is not being turned.
• The vehicle is not on a steep road slope.
• The battery is within optimal operating conditions, such as battery state of charge and temperature in range.
• The engine coolant is at operating temperature.
• Your vehicle is not being driven at a high altitude.
• The ambient temperature is moderate.

The green Auto-Start-Stop indicator light on the instrument cluster illuminates to indicate when the automatic engine stop occurs.
If the instrument cluster has a grey Auto-Start-Stop indicator light, it illuminates when automatic engine stop is not available due to one of the above noted conditions not being met.

Note: You can display the reason why the system is not available in the information display.

Automatic Engine Restart
Any of the following conditions results in an automatic restart of the engine if:

• You remove your foot from the brake pedal.
• You press the accelerator pedal.
• You press the accelerator and the brake pedal at the same time.
• The driver seatbelt becomes unfastened or the driver door is ajar.
• Your vehicle is moving.
• The interior compartment does not meet customer comfort when air conditioning or heat is on.
• Fogging of the windows could occur and the air conditioning is on.
• The battery is not within optimal operating conditions.
• You exceed the maximum engine off time.
• You press the Auto-Start-Stop button while the engine is stopped.
• The heated windshield is turned on.

Any of the following conditions could result in an automatic restart of the engine if:

• The blower fan speed increases or the climate control temperature changes.
• You plug in or switch on an electrical accessory.

Disabling Auto-Start-Stop
Press the Auto-Start-Stop button on the instrument panel to switch the system off.
The button illuminates. The system deactivates for the current ignition cycle only. Press the button again to restore the Auto-Start-Stop function.
If your vehicle is in an Auto-Start-Stop state and you shift the transmission to reverse without pressing the brake, a message appears telling you to press the brake. Press the brake pedal within 60 seconds, or shift into park (P) and manually restart your vehicle.

Note: If the Shift to P, Restart Engine message appears and the amber Auto-Start-Stop indicator light is flashing, automatic restart is not available. Manually restart your vehicle.

AUTO-START-STOP – FREQUENTLY ASKED QUESTIONS
Why does the engine not always stop when I expect it to?
The system is designed to work in a way that complements other vehicle systems,
allowing them to operate at optimum performance.
The system does not stop the engine if:
• The driver door is open.
• Your vehicle is at high altitude.
• The heated windshield is on.
• The engine is warming up.
• The outside temperature is too low or too high.
• The battery charge is low.
• The battery temperature is outside the optimal operating range.
• The engine is required to run to maintain interior climate and reduce fogging.

Why does the engine sometimes restart when I do not expect it to?
The system is designed to work in a way that complements other vehicle systems,
allowing them to operate at optimum performance.
The system restarts the engine if:
• You switch the heated windshield on.
• You switch maximum defrost on.
• Your vehicle starts to roll downhill in neutral.
• The engine is required to run to maintain adequate brake system assistance.
• The engine is required to run to maintain interior climate and reduce fogging.

All that being said I would ask why she was switching it off at that light in the first place.

I was skeptical of it at first But have left it on and it starts the second you start lifting your foot off the brake to go. I have experienced allot of the indications above as to it not auto stopping or starting before I take foot off of the brake to go. All are explained above. Haven’t had any issue with it. I think more peoples misunderstandings of its operation cause more “problems” than the actual system does.

Just my two cents.