Brakes Locked up on Freightliner While Bobtailing?

Seems to me that with those marks on the road and the system didn't even register hard braking that something was screwed up with the truck because you have clear evidence of actual hard braking. Mine will go off even with pretty moderate braking and I've never left tire marks braking.

I've had major problems with those systems with several trucks. One truck would get an ABS+ adaptive cruise fault every day at some point while driving, never got fixed. All of these trucks would randomly slam on the brakes if using cruise control when it saw a "ghost" on the road, sometimes from a shadow, sometimes from an overpass, or sometimes from nothing anywhere at all. So if I'm using cruise control usually I still keep my foot on the pedal because it overrides the idiocy.

The driver may have just done something stupid but considering the trucks electronics clearly weren't working correctly you probably can't prove it one way or the other.

 

For the young ones out there. My everyday driver.

 

Thats a pretty site IMO.

 

I Just started with a new company over 12 yrs exp never had issues with hard braking..
This week Coming to a light in the rain the fronts locked. I first thought the trailer pushed me..
Later on different trailer same scenario happened again..
I called the boss and said this thing is pushing through the brakes..
Yesterday during a traffic merge a car cut off another a few spots up..
Truck locked up again..
There's somthing definitely going on. The truck is a new cascadia with roughly 34k on it.
It's got me white knuckled in the rain. Cant imagine how she will act in worse weather conditions

 

I had a truck in the shop a couple weeks ago that had a rear wheel locking up. It had functioning ABS and traction control. Upon investigation I found a brake roller was out of place. I suspect the uneven pressure on the S-cam was causing the cam to bind even when the ABS exhausted the air.
Does a collision avoidance system have a way to apply the front brakes and trailer brakes or just the drive axles brakes?
The Bendix Wingman ACB will only make a 1/3 of pressure brake application and the Bendix Wingman Fusion will only make a 2/3 brake application.

 

Have seen 3 New Cascadias in the shop w/ only the first drive axle locked up while driving. Im now on the 3rd truck with same issue. The past 2 I was fairly sure was roller/bushings causing the activated shoe to grab and after replacing them the trucks never had that issue again. Im not so sure about the third. Just saying i think something like that is possible.

 

It’s definitely possible my 2021 cascadia did this at a shipper twice yesterday. Out of nowhere the collision management system slammed on the breaks. Luckily I was only going maybe 3mph. That would explain it. The system locked the front breaks and the drive tires continued to spin pushing your truck off the road.