Hill start assist failure

[caseylross]

Add me to the list. Has happened 3 times and 2 of the times it has engaged the parking brake on its own. Has only happened after sitting in it while waiting for my daughter to finish out of class then go to start back up all the warnings pop up and then the parking brake engages. Please let me know what you guys find out.

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[deMoinbhiol]

I had issues out on the trail with loss of engine-power a week ago and a bunch of codes going off, but I got power back after pulling off the trail for a minute and the error codes went away after a mile or two. I took it into the dealer last Friday and had them do a break-in oil change and check everything out at 1,600 miles and they said there we no issues found and nothing wrong with any of the sensors. No issues last weekend, but started it up this morning and got the following error messages... Hill Start Assist, Pre-Collision Assist, Service Advance-Trac, and Check Brake System. Started up fine and drove to work fine, but looks like I need to head back to the dealer again soon.

I'm getting the same notifications, 2,400 miles

 

[Mikejr66]

Mine has gotten these notifications too. Has happened when parked waiting in the car twice and then cleared shortly after starting to drive.

 

[CO Base]

Add mine to the list, has happened to me twice while waiting to pick up my daughter from school.

 

[KrazeeEyezKilla]

This happened to me again recently after getting my Bronco back from the dealer with its new engine. It had happened twice within the first month of ownership back in November/December after these specific steps - park car, turn off engine, but stay in car and do not open door or put it in accessory mode. After a few minutes the power shuts off and then after restarting the engine that’s when it flashes all the warnings. Dealer said it was just the modules all learning to communicate and in that scenario they can fire out of order he guessed. After December it didn’t happen again. Then my engine blew in February, got it back a month later, was waiting in the school pickup line and what do you know, it happened again. Since the car was basically in hibernation for a few weeks it might make sense that it’s “re-learning”. But still, a weird error and doesn’t seem like it should happen regardless.

 

[PorkchopExpress]

Mine is a 2022 model and also did this after sitting in the vehicle after turning it off. Started up to multiple failure messages that all cleared in their own

 

[A907Chick]

This just happened to me yesterday. After all the error messages popped up my brake dash light came on. I turned off the car, opened the door, shut the door and restarted the car. Brake dash light was still on. Put the ebrake on and then disengaged the ebrake, then the dash light turned off.

 

[Grift3r]

Yay! I just got mine at 400 miles! What do I win?

 

[ForFoxSake]

Have not gotten this warning yet at a little over 1500miles, but every single Ford explorer police car at work has had this error at some point. My Ford Edge had the same error....and this was corrected with some grounding issue.

 

[ddavey4923]

Yay! I just got mine at 400 miles! What do I win?

same here, 350 miles.
Did we ever figure this out or just a bunch of “my dealer said”? My auto shutoff also stopped working after I disconnected the battery to replace speakers

 

[CO Base]

After getting my Bronco back from the dealer it’s still doing the same thing..They emailed Ford and have new instructions on what to do..Carrying it back next week..Will update

Did the new instructions fix the problem?

 

[Fly]

This happened to me again recently after getting my Bronco back from the dealer with its new engine. It had happened twice within the first month of ownership back in November/December after these specific steps - park car, turn off engine, but stay in car and do not open door or put it in accessory mode. After a few minutes the power shuts off and then after restarting the engine that’s when it flashes all the warnings. Dealer said it was just the modules all learning to communicate and in that scenario they can fire out of order he guessed. After December it didn’t happen again. Then my engine blew in February, got it back a month later, was waiting in the school pickup line and what do you know, it happened again. Since the car was basically in hibernation for a few weeks it might make sense that it’s “re-learning”. But still, a weird error and doesn’t seem like it should happen regardless.

just to add to this is seems around the 15min mark of sitting in the car you can hear a clunk, which is the parking brake engaging. If you start the car at this point you get the error. If you open the door without starting the car you can hear the brake disengage and starting the car is not a problem.

 

[HCGxKaLiBeR]

I have the same exact issue described from everyone...
Happened 3 times so far since Oct 2022 took delivery

 

[Ford Motor Company]

I have the same exact issue described from everyone...
Happened 3 times so far since Oct 2022 took delivery

Good morning! Can you please send over a private message with your VIN and the name/location of your local Ford dealer? I would like to see what I can do to assist with your hill assist concerns.

 

[Built Wild]

I have experienced this issue several times as well. Hopefully @Ford Motor Company can resolve this with a software update.

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