The contact owns a 2018 Ram 3500. The contact stated while driving approximately 30 MPH, the ABS warning light and the traction control warning light illuminated. Additionally, the message "ABS Disabled" was displayed. The contact stated that the failure recurred while driving. The vehicle was taken to an independent mechanic who retrieved DTC: C0020-01; and the mechanic determined that the ABS hydraulic pump needed to be replaced. The vehicle was not repaired. The local dealer and several unknown dealers were contacted and advised the contact that they could not accommodate the vehicle due to the size, and that the vehicle could not be serviced because it was not purchased at their location. Additionally, the contact had received notification of NHTSA Campaign Number: 21V398000 (Wheels); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the failure because the manufacturer customer care line was inoperable. The failure mileage was approximately 12,000. Parts distribution disconnect.

- New Hyde Park, NY, USA

The contact owns a 2018 Ram 3500. The contact stated that the brake failure and traction control malfunction warning lights were illuminated. The contact took the vehicle to the dealer and the ABS system was replaced. The contact stated that after the repair was completed, whenever the contact depressed the brake pedal, the pedal was spongy. The ABS and traction control warning lights were again illuminated. The contact stated that a certified mechanic diagnosed the vehicle and determined that the hydraulic control unit had failed and needed to be replaced. The local dealer was notified of the failure but was unable to repair the vehicle due to the parts not being available. The manufacturer was not made aware of the failure. The approximate failure mileage was 15,000.

- Panther, WV, USA

The contact owns a 2018 Ram 3500. The contact stated that the ABS and traction control warning lights were intermittently illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that the ABS control module needed to be replaced. An unknown dealer was notified of the failure and confirmed that parts were not available for repair. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 180,000.

- Prosperity, PA, USA

The contact owns a 2018 Ram 3500. The contact stated the anti-lock braking system (ABS) and traction control warning lights were illuminated intermittently. The contact called the local dealer and made them aware of the failure. The vehicle was not diagnosed or repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 26,000.

- Minoa, NY, USA

The contact owns a 2018 Ram 3500. The contact stated that on four separate occasions while driving at various speeds, the ABS system locked up the rear wheels, causing the vehicle to skid and the trailer that was being hauled to thrust around out of control. Additionally, the contact stated that the ABS, Electronic Brake System, and Stability Control Warning lights were illuminated. The contact stated that the cruise control operated as intended for a short while but then inadvertently deactivated. The vehicle was taken to an independent mechanic where it was diagnosed and determined that the ABS module needed to be replaced. The vehicle was not yet repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 63,000.

- Vancouver, WA, USA

The contact owns a 2018 Ram 3500. The contact stated while towing a trailer full of horses, the traction control and the ABS warning lights illuminated. The vehicle was not drivable. The contact towed the vehicle to the local dealer, where it was diagnosed with needing the turbo and the ECU to be replaced. The vehicle was not repaired due to the parts not being available. The contact took the vehicle to another local dealer: Jacksonville Chrysler Dodge Jeep Ram Arlington (9600 Atlantic Blvd, Jacksonville, FL 32225: (877) 677-5782), where it was diagnosed with needing the turbo and the ECU to be replaced. The vehicle was not repaired due to parts not being available. The manufacturer had not been informed of the failure. The failure mileage was approximately 61,000.

- Jacksonville, FL, USA

The contact owns a 2018 Ram 3500. The contact stated while driving at various speeds, the ABS and traction control warning lights were illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that the ABS Hydraulic Control Unit (HCU) needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 23,000.

- Kodak, TN, USA

The contact owns a 2018 Ram 3500. The contact stated that while driving at various speeds, the vehicle experienced complete brake failure. While driving, the brake pedal was depressed but was stiff and slow to respond. There were no warning lights illuminated. The vehicle was taken to the local dealer where it was diagnosed and determined that the hydro boost needed to be replaced. The vehicle was repaired but the failure persisted. While driving, the contact stated that the brake pedal was firm. The parking brake failed to engage fully. The vehicle was taken back to the local dealer where it was diagnosed that the brake master cylinder and ABS module needed to be replaced. The vehicle was repaired but the failure recurred. The manufacturer was contacted and opened a case, but no additional assistance was provided. The failure mileage was approximately 40,000.

- Kettering, OH, USA

The contact owns a 2018 Ram 3500. The contact stated while driving at approximately 70 MPH, the ABS and traction control warning lights intermittently illuminated. The contact stated that the Service ABS system and service electric brake system messages were displayed. The contact called the local dealer and made them aware of the failure. The vehicle was not diagnosed or repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 68,000.

- Stuart, FL, USA