Auto StartStop error
Junior Member
Joined: Aug 2022
Posts: 4
Likes: 0
Did you see that Orange A inside the Orange circle?
That switch is the right most bar switch on the dash with a circle A.
If you did not turn the SS off it will keep trying to function.
Review your Owner manual pages 185, 186, 187.
Note on right column, bottom note.
And page 116.
You cannot put the responsibility on others for what you did or did not do.
You was pretty quick on taking a picture but not paying attention to what had to be done.
Good luck.
That switch is the right most bar switch on the dash with a circle A.
If you did not turn the SS off it will keep trying to function.
Review your Owner manual pages 185, 186, 187.
Note on right column, bottom note.
And page 116.
You cannot put the responsibility on others for what you did or did not do.
You was pretty quick on taking a picture but not paying attention to what had to be done.
Good luck.
Junior Member
Joined: Jan 2020
Posts: 4
Likes: 1
Happened to me yesterday
Have a 2018 F-150 XLT SCREW with 80,000 miles. Never had this happen before but it was 90 degrees out. Truck had been sitting for about 8 hours. Started it up and drive to the end of my 300 foot driveway and right before I reach the end truck dies and get the message everyone is referring to in this thread. I shifted to park and cranked ignition. It immediately started back. No issues since. Made sure to turn off auto start . Never did like that feature and gonna see about using Forscan to turn it off permanently. Also going to test my battery using the method user Bluegrass described.
Senior Member
Joined: Mar 2021
Posts: 4,796
Likes: 2,395
Here is an example of a 5 year old truck that may have never had the AGM battery replaced failing auto stop start because the battery is aging and failing to recharge at a fast enough rate and just a short time later after starting. The overall limit has been reached. Winter is coming and certain failure will result from the condition when the temp. drops putting a greater load on the battery along with a battery loss of capacity due to its temperature.
There really is enough battery charge to manually start the engine but the system design for auto start prevents it when the battery power drops to a certain level that prevents auto start. A system monitor does this.
If this monitor were not in place, the system would keep cranking until the battery when dead.
.
Why: The electrical voltage would drop to a low level under 10 volts when the starter motor cuts in to crank the engine on a low battery. The system stops it before even attempting, and requests by the small screen, to manually start the engine.
Auto start requires power to the whole system same as manual and may inhibit some features when power is low plus the transmission has a fluid pump that must run.
It cannot be stressed enough that battery age has a lot to do with auto start failures and the need for the battery to get enough recharge time after cranking and enough drive time to accomplish it, especially when the battery is aged.
Sometimes it's not all the battery fault but may be an Alternator fault of not recharging the battery at a high enough level or even a Starter issue from normal use. Or a combination of these possibilities.
.
When auto start failure occurs in traffic, Put the 4 WAY FLASHERS ON to alert others you have an issue instead of carrying on like one owner did in another thread.
.
The 4 way switch is right alongside the AS/S switch as a Red Triangle. Use it same as would be used for any other road issues.
Just because an auto stop start feature is available does not mean it will never fail any more than tires never wear, or other serviceable parts begin to fail.
The owner has a responsibility to service the system, same as for any other failure and not be surprised at failure, when it happens if ignored long enough.
There are no ifs and or buts about all this.
There is a way to check the power system right from the dash to see the condition of the system but must be interpreted for values observed and becomes a diagnostic tool to be used. A similar system has been available on the F150s since the year 2001 but in a much more difficult interpretation as combination of decimal and octal number data display off a segmented LED form.
Good luck.
There really is enough battery charge to manually start the engine but the system design for auto start prevents it when the battery power drops to a certain level that prevents auto start. A system monitor does this.
If this monitor were not in place, the system would keep cranking until the battery when dead.
.
Why: The electrical voltage would drop to a low level under 10 volts when the starter motor cuts in to crank the engine on a low battery. The system stops it before even attempting, and requests by the small screen, to manually start the engine.
Auto start requires power to the whole system same as manual and may inhibit some features when power is low plus the transmission has a fluid pump that must run.
It cannot be stressed enough that battery age has a lot to do with auto start failures and the need for the battery to get enough recharge time after cranking and enough drive time to accomplish it, especially when the battery is aged.
Sometimes it's not all the battery fault but may be an Alternator fault of not recharging the battery at a high enough level or even a Starter issue from normal use. Or a combination of these possibilities.
.
When auto start failure occurs in traffic, Put the 4 WAY FLASHERS ON to alert others you have an issue instead of carrying on like one owner did in another thread.
.
The 4 way switch is right alongside the AS/S switch as a Red Triangle. Use it same as would be used for any other road issues.
Just because an auto stop start feature is available does not mean it will never fail any more than tires never wear, or other serviceable parts begin to fail.
The owner has a responsibility to service the system, same as for any other failure and not be surprised at failure, when it happens if ignored long enough.
There are no ifs and or buts about all this.
There is a way to check the power system right from the dash to see the condition of the system but must be interpreted for values observed and becomes a diagnostic tool to be used. A similar system has been available on the F150s since the year 2001 but in a much more difficult interpretation as combination of decimal and octal number data display off a segmented LED form.
Good luck.
Last edited by Bluegrass; Sep 3, 2022 at 02:09 PM.
Member
Joined: Aug 2021
Posts: 62
Likes: 18
From: Florida
This issue drove me crazy.I purchased the auto start/stop eliminator (which works great) but still had the same problem and engine kept stopping.I was able to connect with a Ford rep,via this group, and she scheduled a service appointment with my local dealership.The tech determined it was a bad battery,which they replaced,and I've never had the engine shut off since.Thanks Tahra for your help
Member
Joined: Oct 2020
Posts: 71
Likes: 14
From: Beautiful North Florida
My truck very often will turn off for maybe a second, when I pull into my carport.
Wierd - it starts right back up by itself.
Maybe the small concrete lip I drive over is causing a loose connection? I never see a warning on the dash, tho.
Wierd - it starts right back up by itself.
Maybe the small concrete lip I drive over is causing a loose connection? I never see a warning on the dash, tho.
Member
Joined: Oct 2022
Posts: 96
Likes: 22
Happened to me this morning. Died on the freeway at a red light with a dump truck coming behind me. Not ashamed to say I almost pissed myself.
same problem.
*** is on
take foot off brake
battery light comes on, message pops up
Except mine doesn’t go after you switch to park and back. I have to ignition off and on again to get it responsive.
same problem.
*** is on
take foot off brake
battery light comes on, message pops up
Except mine doesn’t go after you switch to park and back. I have to ignition off and on again to get it responsive.
Junior Member
Joined: Oct 2022
Posts: 7
Likes: 0
To ensure the security of the system, BMW auto start-stop was made to be pretty demanding in terms of the additional conditions that ought to be met when using it.
The reasons why the engine does not auto-stop:
the car has not reached 9 mph for automatics or 5 mph for manuals after starting
the vehicle is rolling (manuals)
the brake assist vacuum is too low (manuals)
the transmission adaptation is active (automatics)
too little pressure is being put on the brake pedal, the vehicle is therefore not detected as being sufficiently stopped(automatics)
the hydraulic pressure accumulator doesn’t have enough pressure (automatics)
the driver has unfastened the seatbelt
the engine is not at optimal operating temperature
the battery charge is too low
the ambient temperature is under 3 °C ( 37.4°F)
the ambient temperature is above 30 °C (86 °F) and the air conditioning is on
the climate control is on but the interiors didn’t reach the desired temperature
the vehicle has stopped downhill or on a hill with a 12% or higher gradient
the HDC (Hill Descent Control) is activated
the steering wheel angle is above 6°
the steering wheel is being moved after coming to stop
the accelerator pedal is pressed
the car comes to a stop after reversing
the driver leaves the car
the DPF is clogged
the fuel is of poor quality
the IHKA system detects fogging of the windscreen
the ABS system has been activated
The reasons why the engine does not auto-start:
the driver’s door is open (automatics)
the driver is unbelted (automatics)
the gear lever is in the park position (automatics)
the gear is engaged without declutching (manuals)
At times you may notice the auto start-stop restarts your engine despite the fact you haven’t started driving yet. See what may trigger the BMW engine to restart automatically:
the car battery is being discharged too quickly
BMW starts to roll with the engine turned off
the temperature inside your vehicle changed from the desired temperature
the temperature inside your vehicle is too high
the gear lever is moved to Reverse, Neutral or Park
the steering wheel is moved while the engine is off
the ‘A off’ button above start-stop is being pressed
Greeting,
Rachel Gomez
The reasons why the engine does not auto-stop:
the car has not reached 9 mph for automatics or 5 mph for manuals after starting
the vehicle is rolling (manuals)
the brake assist vacuum is too low (manuals)
the transmission adaptation is active (automatics)
too little pressure is being put on the brake pedal, the vehicle is therefore not detected as being sufficiently stopped(automatics)
the hydraulic pressure accumulator doesn’t have enough pressure (automatics)
the driver has unfastened the seatbelt
the engine is not at optimal operating temperature
the battery charge is too low
the ambient temperature is under 3 °C ( 37.4°F)
the ambient temperature is above 30 °C (86 °F) and the air conditioning is on
the climate control is on but the interiors didn’t reach the desired temperature
the vehicle has stopped downhill or on a hill with a 12% or higher gradient
the HDC (Hill Descent Control) is activated
the steering wheel angle is above 6°
the steering wheel is being moved after coming to stop
the accelerator pedal is pressed
the car comes to a stop after reversing
the driver leaves the car
the DPF is clogged
the fuel is of poor quality
the IHKA system detects fogging of the windscreen
the ABS system has been activated
The reasons why the engine does not auto-start:
the driver’s door is open (automatics)
the driver is unbelted (automatics)
the gear lever is in the park position (automatics)
the gear is engaged without declutching (manuals)
At times you may notice the auto start-stop restarts your engine despite the fact you haven’t started driving yet. See what may trigger the BMW engine to restart automatically:
the car battery is being discharged too quickly
BMW starts to roll with the engine turned off
the temperature inside your vehicle changed from the desired temperature
the temperature inside your vehicle is too high
the gear lever is moved to Reverse, Neutral or Park
the steering wheel is moved while the engine is off
the ‘A off’ button above start-stop is being pressed
Greeting,
Rachel Gomez