The contact owns a 2018 Ram 3500. The contact stated that while driving at an undisclosed speed, the ABS warning light illuminated on the instrument panel, after which a message "Service ABS" was displayed. The vehicle returned to normal functionality, but the failure became a regular occurrence. The vehicle was taken to an independent mechanic, who diagnosed a failure with the ABS. The vehicle was not repaired. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 71,000.

- Goleta, CA, USA

The contact owns a 2018 Ram 3500. The contact stated while driving approximately 65 MPH with the cruise control engaged and towing a trailer, the vehicle drove over a bump in the roadway and the ABS warning light illuminated and the vehicle independently decelerated to 35 MPH. The accelerator pedal was depressed, and the vehicle returned to normal functionality. The contact stated that the failure was intermittent at first but had become a recurring failure while driving over bumps in the roadway. The contact stated the failure persisted whether towing a trailer or not. The contact had taken the vehicle to a local dealer however, the failure could not be duplicated. The dealer replaced the ABS and ACU electrical control module. The vehicle was repaired, however the failure reoccurred. The manufacturer was not informed of the failure. The contact researched online and related the failure to NHTSA Action Number: PE22012 (Service Brakes, Hydraulic). The failure mileage was approximately 57,000.

- Lone Jack, MO, USA

The contact owns a 2018 Ram 3500. The contact stated while driving at an undisclosed speed, the electronic braking system warning light illuminated and chimed, causing the cruise control to become inoperable. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 15,000. The VIN was unavailable.

- Mineral, VA, USA

ABS /Traction Control Light Service Electronic Braking System Service Antilock Brake System Vehicle ABS malfunctions and makes it difficult to stop

- Mobile , AL, USA

The contact owns a 2018 Ram 3500. The contact stated that the ABS system had failed to operate as needed. The vehicle was taken to the dealer to be diagnosed. The contact was informed that the hydraulic control unit (HCU) needed to be replaced. The vehicle was not repaired due to the part being on back order. The contact was informed that the part would be available in March 2024. The manufacturer had not been made aware of the failure. The approximate failure mileage was 65,000.

- Athens, AL, USA

The contact owns a?2018 Ram 3500. The contact stated that while driving at an undisclosed speed, the ABS and traction control warning lights illuminated. Additionally, the "Service ABS" and "Service Brake Assist" messages were displayed. The vehicle was taken to the dealer, where it was diagnosed that the hydraulic control unit needed to be replaced; however, the replacement part was on backorder. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 64,826.

- Westville, NJ, USA

The contact owns a 2018 Ram 3500. The contact stated that while driving 65 MPH, a vehicle abruptly merged in front of him causing him to crash into the vehicle. The ABS warning light was illuminated. The contact pulled over to the side of the roadway and became aware that the brake pedal was difficult to depress. The vehicle was not taken to a dealer to be diagnosed or repaired; however, the dealer was contacted by phone. The manufacturer was made aware of the failure and informed the contact that there was freeze on the repair due to parts not being available. The failure mileage was 9,800.

- Gloucester, VA, USA

The contact owns a 2018 Ram 3500. The contact stated while driving approximately 25 MPH, the "Check Brake System" and ABS warning lights were illuminated. The contact stated that the failure reoccurred intermittently while driving at various speeds. The vehicle was taken to a local dealer, where it was diagnosed that the Hydraulic Control Unit (HCU) needed to be replaced; however, the parts were on back order. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 57,000.

- Suffolk, VA, USA

The contact owns a 2018 Ram 3500. The contact stated that while driving at an undisclosed speed, the brakes inadvertently engaged. The traction control warning light was illuminated, and the Service Electronic Braking System message was displayed. The vehicle was taken to the dealer, where it was diagnosed that the HCU needed to be replaced; however, the replacement part would be on backorder until March 2023. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 37,353.

- Sulphur Springs, TX, USA

The contact owns a 2018 Ram 3500. The contact stated that while driving at various speeds, the "Service ABS" warning message and ABS warning light were illuminated. The vehicle was taken to a local dealer, where it was diagnosed that the ABS hydraulic unit needed to be replaced; however, the part for the repair was not available. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 25,000.

- West Milford, NJ, USA

The contact owns a 2018 Ram 3500. The contact stated that the service electronic braking system message was displayed. While the error message was displayed, the cruise control disengaged. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The contact stated that the failure was related to NHTSA Action Number: PE22012 (Service Brakes, Hydraulic). The manufacturer was not contacted. The approximate failure mileage was 45,000.

- Traverse City, MI, USA

The contact owns a 2018 Ram 3500. The contact stated that while driving at approximately 60-€"70 MPH with the cruise control activated, the "Service Electronic Brake System" and "Service ABS" messages were displayed with the ABS and traction control warning lights illuminated. Additionally, the failure caused the cruise control to deactivate. The vehicle was taken to an independent mechanic, who diagnosed that the ABS control module needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 115,000.

- Mc Calla, AL, USA

The contact owns a 2018 Ram 3500. The contact stated while driving at an undisclosed speed, the ABS unit became inoperable without warning. The safety feature failed, and the vehicle lost traction control, hydraulic braking, and cruise control. The vehicle was taken to the local dealer where it was diagnosed with a faulty hydraulic control unit (HCU). The contact was informed that the HCU needed to be replaced. The vehicle was repaired. The contact stated that the old part number was 68143491aa and had been upgraded to part number 68143491ab. The manufacturer was contacted but no additional assistance was provided. The failure mileage was approximately 20,000.

- Eugene, OR, USA