I drive a 2020 Freightliner Cascadia that has been recently suddenly veering off-road to the right. I am pretty sure it only happens when adaptive cruise control is on.
I will be driving on the interstate and suddenly the truck will veer off to the right. It is an extremely dangerous situation that I really need to figure out why this is happening.
The brakes are adjusted properly and when applied, the truck does not pull to the left or right.
It is a lease truck from Ryder, and I had it in the garage yesterday. They could not find any reason as to why the truck was veering off to the right suddenly, but they calibrated the bumper radar and the camera on the windshield in hopes that it fixed the problem.
Has anyone ever experienced this problem?
2020 Cascadia Suddenly Veering To The Right
Discussion in 'Freightliner Forum' started by Slaxxguy, Aug 20, 2026.
Page 1 of 2
-
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
-
Have you tried holding on to the steering wheel? That usually keeps my truck going straight.
-
IMO, You are volunteering for a crash on your record if what you describe is really happening to you. I would refuse to drive such a truck, if it’s doing what you say it is doing. Imagine sitting in court after the crash and explaining why you knew the truck was veering to the right, but you kept driving it after you knew this about the truck. Do you have both hands gripping the steering wheel at all times, especially when braking or are you a new driver watching videos and screwing with your phone and wondering why the truck isn’t driving itself? I only ask because you are brand new on the forum and we have lots of people making up stories and then never answering questions.
-
It does not have steer assist. It does have the lane detection with the windshield camera though. It is going back into the shop tomorrow. Definitely seems to be mechanical.
-
No, I am not a new driver. I come to this forum seeking someone who may have experienced this problem and could give me sound advice as to where to point the mechanics to fix this issue.
I drove it locally today with no issues, but I do not plan on taking it back out onto the big road without having this resolved. The truck goes back into the Ryder shop tomorrow to go over brake valves and wheel speed sensors and whatever else they can possibly look into.
So, yes, I am a real person that has experienced this and hopefully I can help others with what I find to be the problem. Like most forums, there are smart ##### that have nothing better to do but to hang out and try to poke fun. I’m not saying you are one of them, but let’s try to help each other. I will post my results from tomorrow here. -
Howdy, and welcome aboard. Don't kid yourself, we've all driven dangerous trucks, and I think you have a handle on it. It could be something with the trailer. Trailers do funky things. Bobtail would narrow it down some. For a truck to suddenly veer off the road, only on certain times, indicates it's a broken or worn steering or suspension part that takes a certain road surface. They'll find it, and it's good you recognize something isn't right. Good luck.
-
Oh I have a lot better things to do but this is more fun.
Take it easy driver, if I had not said it someone else would've.
Not saying you don't have a real problem, I hope you figure it out. Had to ask the obvious though. -
Update: After going over the truck more thoroughly, Ryder found a wheel sensor that was reading differently from the others. Unplugging and replugging would give different values each time.
This was on the right side of the drives and very well may have been the culprit of applying the brake on that wheel dragging the truck to the right. I have been local all week and have not had a chance to test it out on the big road yet.
I do have more confidence heading out and highway now. I will repost in the coming weeks and update.
Thanks to all who replied in a nice manner.
Keep on Trucking. -
But wait! There is more!!!!
Turns out that replacing the wheel sensor did not fix the problem.
Another unplanned right turn sent the Cascadia back to Ryder for a few days.
After more investigation, a code from a
Steering Angle Sensor reared it’s head.
It took time to order the part and install and calibrate it, but it looks to have been the cause of the erratic steering to the right. I drove around 150 miles after the repair with no problems.
Looks to be solved.
I will report back soon to see if the next trip is free of steering errors.
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
Page 1 of 2