Which parts fail
Components named in complaints (accelerator pedal, throttle, sudden acceleration, cruise control).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2018 Ram 2500 owners, lightly cleaned up (personal details are redacted by NHTSA).
Hydraulic brake unit failure. yes part is still available for inspection as it is still n the vehicle. I was driving to work at 21:30 hours on 1/1/2025 on a snow covered road. I gently applied the brakes and my truck went into a spin. I was going 25 mph. the abs unit failed and there was no pulsating in the brake pedal and rear brakes locked up sending the truck into an uncontrollable spin. my front left driver side of the vehicle then struck the jersey barrier and vehicle did continue to spin and then struck passenger rear side of the vehicle on the jersey barrier. currently has $17k in damages to the vehicle. I was not injured at the time but currently experiencing lower back pain. there was no lights or warnings on dash until immediately after the collision. I had the ABS HBU replaced a few months back and was told the new unit was part of the old stock and would most likely fail. …
The contact owns a 2018 Ram 2500. The contact stated while driving 72 MPH with the cruise control set, the contact slammed on the brake pedal due to approaching a crash in the roadway and the front tires locked. The contact noticed that the front tires were worn down on 16 inches of the tire. The vehicle was vibrating while driving. The contact replaced the front passenger's side tire. The cruise control was turning on and off independently. The ABS warning light was illuminated and making an abnormal dinging sound. The contact received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic); 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 issue. …
The contact owns a 2018 Ram 2500. The contact received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic); however, the part for the recall repair was not yet available. The contact stated that while driving at various speeds, a warning chime sounded, followed by the "Service ABS" message being displayed on the instrument panel. Due to the failure, the cruise control feature failed to operate as needed. The dealer was notified of the failure and confirmed that the part for the repair was unavailable. The contact was then informed that the vehicle could be serviced out-of-pocket and that the contact could file a reimbursement claim once the parts for the recall repair became available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not notified of the failure. …
The contact owns a 2018 Ram 2500. The contact stated that while driving at undisclosed speeds, the traction control and cruise control failed to operate as needed. The alert for the ABS was inoperable. The contact stated that several unknown warning lights were illuminated on the instrument cluster. The contact received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic). The vehicle was taken to the local dealer, where it was diagnosed with a failed HCU, and the pump and the control unit were replaced. The vehicle was repaired, but the failure reoccurred. The manufacturer was contacted on two occasions and informed that there was no time frame for the repair. The failure mileage was approximately 72,205.
The contact owns a 2018 Ram 2500. The contact stated that while driving at undisclosed speeds, there was a bell-sounding alert coming from the vehicle and several unknown warning lights illuminated. The messages Traction Control, ESC, and Cruise Control Offline were displayed. The contact received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic). The local dealer was contacted and confirmed that the part to repair the vehicle was on back order. The dealer informed the contact if the vehicle was repaired out of pocket, there might be a possible reimbursement. The manufacturer was not notified of the issue. The failure mileage was approximately 59,000.
The contact owns a 2018 Ram 2500. The contact received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that the Service ABS and Electronic Stability Control (ESC) warning lights were intermittently illuminated, causing the cruise control mode to deactivate while driving. The dealer was contacted. No further information was available. The manufacturer was made aware of the failure. The failure mileage was approximately 35,000.
The contact owns a 2018 Ram 2500. The contact received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that the ABS and Traction Control warning lights were illuminated. While attempting to use the cruise control, the system failed to activate. The dealer was contacted. The manufacturer was made aware of the issues and confirmed that the remedy was not yet available. The failure mileage was approximately 118,000.
The contact owns a 2018 Ram 2500. The contact received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic); however, the part to do the recall repair was not yet available. The contact stated that while driving at various speeds, the cruise control failed to activate as intended. The traction control and ABS warning lights were illuminated. Several local dealers were 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. The failure mileage was approximately 40,000.
The contact owns a 2018 Ram 2500. The contact stated that the ABS warning light was illuminated. The contact stated that the traction control was unavailable and was not in service, and the cruise control was not available. The contact received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic). The local dealer was contacted and provided a cost for the repair. The vehicle was not diagnosed or repaired. The manufacturer was contacted and opened a case, but no additional correspondence was received. The failure mileage was approximately 36,500.
The contact owns a 2018 Ram 2500. The contact stated that after starting the vehicle, the ABS, Traction Control and Cruise Control warning lights remained illuminated. The contact stated that since the failure had occurred, the brakes failed to immediately respond while depressing the brake pedal. The contact stated that the brake pedal felt spongy. The cause of the failure was not yet determined. The manufacturer was notified of the failure, but no assistance was offered. The local dealer was not yet contacted. The failure mileage was 39,000.
Acceleration complaints in other 2500 years
Frequently asked questions
How common are acceleration problems on the 2018 Ram 2500?
NHTSA has 342 complaints about the speed control & acceleration of the 2018 Ram 2500, 13% of the model year's 2,606 complaints. The component named most often is cruise control (16 mentions).
Is there a recall for 2018 Ram 2500 acceleration problems?
No. NHTSA lists no speed control & acceleration recall for the 2018 Ram 2500, though it has 9 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2018 Ram 2500 acceleration problems start?
Half of the complaints with a recorded mileage happened before about 59,000 miles, and 17% before 25,000 miles.
Is it dangerous?
Owners linked 2 crashes, 0 fires and 0 injuries to speed control & acceleration problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.