Hill Assist Fault - ABS Warning - Advanced TRAC - Camera Failure

SierraHotelBronco
Nov 18, 2022

Rank VI

Nov 18, 2022

Recently I have been having a flurry of intermittent failures. I have scheduled service, but I am curious if others have seen this and what the fix was:

Hill Assist Fault - I am getting this every few weeks
ABS Warning coupled with Advance TRAC failure and ABS warning - This happened once on start
Camera System Failure - The backup and the 360 views went black, although the backup alignment bars could still be seen
I wasn't there...
Last edited by a moderator: Nov 18, 2022

Rank I

Nov 18, 2022

#1
I've had the Hill Assist Fault warning quite a few times and my dealer is aware. They said they'll take a look at it when due for an oil change. Oddly, I have noticed it seems to only occur if I shut my Bronco off waiting for one of my kids for an extended period of time (longer than 10 minutes). As soon as I turn it back on, the warning light appears.
jimFish

That's a terrible idea, when do we start?

Nov 19, 2022

#2
I've had the Hill Assist Fault warning quite a few times and my dealer is aware. They said they'll take a look at it when due for an oil change. Oddly, I have noticed it seems to only occur if I shut my Bronco off waiting for one of my kids for an extended period of time (longer than 10 minutes). As soon as I turn it back on, the warning light appears.
easy fix then. Get rid of the kids. 😉
4 Door BadSquatch | Soft-top | Velocity Blue | 2.7 Auto | Towing | Lux | Leather
PSUTE, TK1215

Rank I

Nov 19, 2022

#3
easy fix then. Get rid of the kids. 😉
😂

The Patriot

Nov 19, 2022

#4
I had the Hill Assist Fault warning after sitting in a parking lot with accessory on—when I started up got it and then disappeared. I chalked it up as an anomaly but obviously something to look out for and document. Thanks for posting.
2022 Wildtrak/Race Red/4 Door/MIC Hardtop/High/Lux+Leather/HD Modular Bumper/Towing.
Built AUG 2022//Delivered 24 SEP 22. Stablemates: 2021 F350, Velocity Blue, 7.3L Godzilla V8, 2009 White Sand, F150 Platinum 5.4L Triton V8

Home, home on the range

Dec 17, 2022

#5
  • I was driving last week and hit a slick spot on the road. Backend slid just a little and corrected. The next thing I know I have all kinds of warning lights. Antilock brake fault, hill decent control fault, and collision assist unavailable. Service tech came to the house, and said the tone ring was out of alignment. Thought they would have to replace the whole rear axel but they can order just the ring. No eta on parts. Ok to drive, but no 4x4. Just glad I work from home.
2022 Bronco Black Diamond 2dr 2.3L manual Hot Pepper Red. Reserved 8/7/20. Ordered 1/23/21. Reordered 10/08/21. Scheduled week of January 24th 2022, delivered 2/24/2022

Rank IV

Mar 08, 2023

#6
My 2022 Wildtrak is going in next Monday for this. Keeps getting the Hill Assist Fault but also magically sets the parking brake from time to time. All started when I took the doors off (and no, I do not want to just put them back on) and started getting the Door Electronics Not Connected notification every time we start up.

Will share what they come up with after the visit.
Deano Bronc

Rank V

Mar 08, 2023

#7
My 2022 Wildtrak is going in next Monday for this. Keeps getting the Hill Assist Fault but also magically sets the parking brake from time to time. All started when I took the doors off (and no, I do not want to just put them back on) and started getting the Door Electronics Not Connected notification every time we start up.

Will share what they come up with after the visit.
Good afternoon! I can look into this for you. Feel free to send over a private message with your VIN and dealership information at your earliest convenience.

Rank 0

Jul 10, 2024

#8
Has anyone had a resolution for these problems? I've had the ABS module replaced once. It was fine for a few months, but I'm getting all the faults on an almost daily basis again.

Rank VI

Jul 10, 2024

#9
Has anyone had a resolution for these problems? I've had the ABS module replaced once. It was fine for a few months, but I'm getting all the faults on an almost daily basis again.

Just throwing this out there, are you sure you don't have a dirty wheel speed sensor? Or a bad one? That's usually what throws the ABS light up.
2021 Broncos - BaseSquatch 4dr. Rapid Red V6 Soft Top
Big Bed 4dr. AMB V6 Soft Top Tow (BIL's)
Nitto tires SUCK! You've been warned.
UserError, TK1215

Rank 0

Jul 10, 2024

#10
Just throwing this out there, are you sure you don't have a dirty wheel speed sensor? Or a bad one? That's usually what throws the ABS light up.

I thought they had already done that, but I don't see it in the service logs. Looks like the only things they've done are fix loose connections and replace the ABS module. I'll definitely mention that when I go in today. Thanks!
TK1215, EvlNvrDys

O-===-O BRONCO, Trail Rated is standard

Jul 11, 2024

#11
Has anyone had a resolution for these problems? I've had the ABS module replaced once. It was fine for a few months, but I'm getting all the faults on an almost daily basis again.
I'd check all the wiring and harnesses going to the ABS on each brake. I recently lost ABS/GOAT modes/ Hill Assist, ect, basically anything that uses brakes. Fortunately I still had functioning brakes. Turned out both wiring harnesses to one wheel came undone. One I just plugged back in the other stayed plugged in but the wires had pulled out of the leads. Fortunately I was able to get to a dealership and buy a pigtail harness that matched up with the one in my hand. There were other Broncos around so I was able to confirm the correct order of the 2 wires before installing the pigtail. In my case it was the right rear which Ford for some reason routed hanging pretty loose and low, where the other side of the axle was wired up higher and tighter.
UserError, rhx02

Rank 0

Jul 11, 2024

#12
I'd check all the wiring and harnesses going to the ABS on each brake. I recently lost ABS/GOAT modes/ Hill Assist, ect, basically anything that uses brakes. Fortunately I still had functioning brakes. Turned out both wiring harnesses to one wheel came undone. One I just plugged back in the other stayed plugged in but the wires had pulled out of the leads. Fortunately I was able to get to a dealership and buy a pigtail harness that matched up with the one in my hand. There were other Broncos around so I was able to confirm the correct order of the 2 wires before installing the pigtail. In my case it was the right rear which Ford for some reason routed hanging pretty loose and low, where the other side of the axle was wired up higher and tighter.

Wow, that's horrible. I'll definitely add that to the list. Thanks!
OrangecrushBronco

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