While approaching an overpass the collision mitigation system activated my brakes nearly causing the vehicle behind me to rear end my trailer, hit my brakes so hard i was thrown forward.
2019 Freightliner Cascadia: false forward collision warnings
7 of the 30 complaints about the 2019 Freightliner Cascadia describe false forward collision warnings.
- owner complaints
- 7
- of this car's complaints
- 23%
- recalls
- 1
Is there a fix? There is 1 recall and 21 service bulletins for this area of the car. See below
False forward collision warnings by model year
What owners say
The contact owns a 2019 Freightliner Cascadia. The contact stated that while driving at various speeds, the Forward Collision Avoidance feature engaged inadvertently. Recently, the contact stated that while driving at 45 MPH, the brake assist system engaged after a plastic bag flew by the vehicle. The Forward Collision Avoidance alarm sounded during the failure. The contact called the local dealer and was informed that the feature could not be deactivated. The manufacturer was also notified of the failure, but no assistance was provided. The failure mileage was approximately 254,180.
The contact owns a 2019 Freightliner Cascadia. The contact stated that while driving approximately 60–70 MPH, the brake assist system engaged without an object nearby. While depressing the brake pedal, the system released and reset. The Forward Collision Avoidance alarm sounded. The contact called the local dealer and was referred to the manufacturer. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 200,674.
My truck just came to a screeching halt on the interstate with no obstacles in front of it. It nearly caused a major accident. I could not override it. I was approaching an overpass approximately 100 yards away. Collision warning lights went on. Horn started beeping and brakes engaged immediately.
This complaint comes from a private truck fleet operating over 700 trucks experiencing excessive amounts of false positive emergency braking and/or haptic following distance warnings (brake stab) on 2018-2020 Freightliner Classis Cascadia tractors. The system experiencing the highest incidents are equipped with the Wabco OnGuard Collision Mitigation System. Some of these false positives have resulted in neck and shoulder injuries. False positives occur while approaching bridge overpasses and other road objects such as steel plates or overhead signs. Wabco has been contacted and state the system is discontinued and outdated so no support or fixes is offered other than a single software upgrade. All units have received the software update but still experience false positives. These unexpected false positive occurrences have resulted in injuries, potential loss of control, and accident risks to other motorists. Although false positives have occurred and continue to occur since first receiving trucks with this technology in 2018, the first injury occurred on 3/3/2022. The system should be recalled to provide a solution to the excessive false positives.
Cruise control will shut off and then engage again on its own. It will have a hard time to disengage at times. Lane departure goes off when there is nothing there. The collision warning system goes off a lot. Locked up the brakes in the rain causing a slide. Locked up on ice almost causing a jackknife. Then this summer it has locked up when nothing is around. Came to a complete stop, then not releasing the brakes for a few seconds. Luckily, no one was around. It has been in for repair several times. It is in the shop now. I lease this vehicle from Penske. They refuse to give me a safe truck.
ABS AND TRACTION control failed. Because of this, the $ 7,000 automatic collision avoidance system is not working. 300.000 miles on 2019 truck is just ridiculous.
Service bulletins that may apply
- Truck Equipment Manufacturer upfit guide for Detroit Assurance Forward Radar Relocation and Adjustment
- CX Advocate for P4 Side Guard Assist On/Off Menus and Trailer Functionality (TSB-54-381-FTL)
- Features and Benefits for SafetyDirect 5.1
- CX Advocate for KY AEB Notice
- Customer letter for Detroit Assurance Kentucky Interstate 71 Road Hazard
- Service Solution for J1939 CAN issues for vehicles equipped w/ Bendix Side Radar w/ expanded field of view
- Revised Field Service Campaign for Cascadia Lane Assist Software.
- Service Solution for Cummins Engine andWABCO OnGuard (Obtaining Cruise When AdaptiveCruise Is Interrupted)
Related recalls
Electronic stability control (ESC)
- What is wrong
- Daimler Trucks North America, LLC (DTNA) is recalling certain 2017-2023 Freightliner Cascadia, 2020-2023 Western Star 49X, 2021-2023 Western Star 47X, and 2022 Freightliner 114SD vehicles. The brake modulator valves on the front axle may corrode and cause the vehicle to pull to the affected side during braking initiated by Electronic Stability Control (ESC) or Roll Stability Control (RSC).
- Risk
- Brakes that pull to one side may cause a sudden change in vehicle direction, increasing the risk of a crash.
- Remedy
- Dealers will inspect and replace the front brake modulator valves, as necessary. Some vehicles will have a software update which will alert driver when a replacement is required. All repairs will be performed free of charge. Owner notification letters were mailed beginning October 13, 2023. Owners may contact DTNA customer service at 1‑800‑547‑0712. DTNA's number for this recall is FL966.
Recall number 23V073000 · Recall details
Questions about the 2019 Freightliner Cascadia collision warning
Is false forward collision warnings a common problem on the 2019 Freightliner Cascadia?
7 of 30 owner complaints about the 2019 Freightliner Cascadia (23%) mention false forward collision warnings. The model year with the most reports is 2019.
Is there a recall or service bulletin for this on the 2019 Freightliner Cascadia?
There is 1 recall and 21 service bulletins for the same area of the car. Check them below with your VIN.
VIN decoder
See the problems and recalls for an exact car
Buying a used 2019 Freightliner Cascadia?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history