Automatic parking brake?
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Fleet Mechanic
Joined: Nov 2015
Posts: 1,674
Likes: 676
From: DeMotte, IN
Automatic parking brake?
Happened to my 2023 Lariat today. Had my dump trailer hooked up. Got home to dump the contents. Every time I put the truck in park as I was lining the trailer up to make the dump, the parking brake would automatically engage. Had to manually disengage. Is there a setting for this? Has never happened before with this trailer or our Jayco. I was in 4 high at the time. Don’t believe it did it in 2 high.
More Turbo
Joined: Nov 2021
Posts: 591
Likes: 320
There is another time that it will auto engage(even if the auto parking brake is disabled) and it has something to do with either not enough brake pressure when shifting to park or the time you were in drive. Something along those lines. I found it in the owners manual of all places LOL.
I have it kick a lot when I park the truck in my garage. I back against a small piece of wood and I always make sure I go to neutral to make sure nothing in the driveline is loaded up before going to park. I usually dont touch the brakes while doing this.
I have it kick a lot when I park the truck in my garage. I back against a small piece of wood and I always make sure I go to neutral to make sure nothing in the driveline is loaded up before going to park. I usually dont touch the brakes while doing this.
Laughing Gas
Joined: Sep 2017
Posts: 900
Likes: 330
There is also a "reverse sensing" setting in the driver assistance menu that applies brake pressure when backing up and sensors are blocked. Tailgate down blocks the sensors. Learned this last week hooking up the camper.
Fleet Mechanic
Joined: Dec 2002
Posts: 1,664
Likes: 188
Happened to my 2023 Lariat today. Had my dump trailer hooked up. Got home to dump the contents. Every time I put the truck in park as I was lining the trailer up to make the dump, the parking brake would automatically engage. Had to manually disengage. Is there a setting for this? Has never happened before with this trailer or our Jayco. I was in 4 high at the time. Don’t believe it did it in 2 high.
Lead Driver
Joined: Oct 2014
Posts: 5,945
Likes: 1,359
From: NY/Canada border
I'l have to look at the settings because I don't recall exactly what I did. But when I first starting pulling a trailer with my new 2023 the brake kept coming on when I was backing the trailer. Somehow I turned that feature off.
It's never applied any brakes any other time when reversing, trailer or no trailer.
It's never applied any brakes any other time when reversing, trailer or no trailer.
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Laughing Gas
Joined: Sep 2017
Posts: 900
Likes: 330
I'l have to look at the settings because I don't recall exactly what I did. But when I first starting pulling a trailer with my new 2023 the brake kept coming on when I was backing the trailer. Somehow I turned that feature off.
It's never applied any brakes any other time when reversing, trailer or no trailer.
It's never applied any brakes any other time when reversing, trailer or no trailer.
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Lead Driver
Joined: Oct 2014
Posts: 5,945
Likes: 1,359
From: NY/Canada border
I'd have to check but that must be what I did. If reversing with the tailgate down the warning you speak of does indeed show up in the cluster. But no brake action takes place.
Laughing Gas
Joined: Sep 2017
Posts: 900
Likes: 330
I noticed mine doing it as I was hooking up the fifth wheel and I couldn't figure out what was going on. I checked the auto brake settings, etc. until I finally found it in the driver assistance settings about applying the brakes when rear sensors are activated. Now I know! LOL!
Logistics Pro
Joined: Jan 2010
Posts: 4,129
Likes: 1,649
Good to know, my FIL's '22 keeps slamming on the brakes when backing a trailer without plugging in the trailer (which is how he normally does things, since he only hauls his boat to the end of the road to launch it). I'll see if he wants it shut off, I tend not to make any changes to his unless he requests it.
Lead Driver
Joined: Oct 2014
Posts: 5,945
Likes: 1,359
From: NY/Canada border
I noticed mine doing it as I was hooking up the fifth wheel and I couldn't figure out what was going on. I checked the auto brake settings, etc. until I finally found it in the driver assistance settings about applying the brakes when rear sensors are activated. Now I know! LOL!
More Turbo
Joined: Dec 2011
Posts: 739
Likes: 393
Happened to my 2023 Lariat today. Had my dump trailer hooked up. Got home to dump the contents. Every time I put the truck in park as I was lining the trailer up to make the dump, the parking brake would automatically engage. Had to manually disengage. Is there a setting for this? Has never happened before with this trailer or our Jayco. I was in 4 high at the time. Don’t believe it did it in 2 high.
I think the Tow/Haul mode also triggers auto brake when parked.
Fleet Mechanic
Joined: Dec 2012
Posts: 1,567
Likes: 539
From: DFW
The truck will automatically engage the electric emergency brake if it senses too much roll while in park, either forwards or backwards roll, with or without a trailer. It's almost like it wants to keep the transmission from getting into a bind.
It will automatically disengage when you put it in gear, forward or reverse, and tap the accelerator. Not a bad function in my mind. I've never had it accidentally engage or surprise me, but I manually use it often when parked on a grade.
It will automatically disengage when you put it in gear, forward or reverse, and tap the accelerator. Not a bad function in my mind. I've never had it accidentally engage or surprise me, but I manually use it often when parked on a grade.
