Ram 3500 adaptive cruise problems

Filed Nov 3, 2026 · Acceleration, Brakes · AR · crash

Failed systems: Failed calibration of speed odometer, Tire pressure Monitoring System, Adaptive Cruise Control, Crash Avoidance System. Brakes, Electrical. Vehicle purchased 3/30/26 with multiple repair attempts by dealership including replacing TPMS module, ECM Module, and Trailering Module. 3 episodes of vehicle rolling backwards and breaks not working while on incline with most recent 11/2/26 resulting in catastrophic brake and electrical failure during which the vehicle rolled backwards crashing into tree. 1 episode of vehicle locking up while going down interstate at 70 MPH with loaded trailer attached. This places the driver and passengers at risk for injury and/or death. Per the dealership, they have not been able to reproduce the issues but stated that it is unrepairable. No manufacturer inspection has been completed. Warning lights and warning messages have been present since before first return to dealership on 4/9/26, 6 days after purchase of vehicle, for TPMS issues, inaccurate speed odometer, and incorrect lift kit installation.

Filed Oct 14, 2026 · Brakes · 84,500 miles · MD

The contact owns a 2017 Ram 3500. The contact stated that while driving at an undisclosed speed, the vehicle intermittently lost Anti-Lock Brake System (ABS), Electronic Stability Control (ESC), and cruise control functionality. The contact stated that the systems later became completely inoperable and could not be engaged. The contact inspected and diagnosed the vehicle, retrieving multiple diagnostic trouble codes associated with the federal safety agency Campaign Number: 24V896000 (Service Brakes, Hydraulic). The dealer was contacted. The manufacturer was notified of the failure via telephone, and a case was filed. The contact was referred to the federal safety agency Hotline for assistance. The failure mileage was approximately 84,500.

Filed Oct 5, 2026 · Brakes, Electrical · NJ

Since first test driving the truck in March of 2025, there was an issue with the ABS system warning coming on. When that happens, it also disables 4 wheel drive, electronic stability control, cruise control and trailer brakes. The first 3x it happened while NOT towing at about 45mph. Other times it happened while towing a 16,000# trailer which caused vehicle control issues when braking. I did however discover, in a panic, that the manual trailer brake lever still works. The cause of the ABS system shut down was determined to be code: C0037-2F (Left Wheel Speed Sensor Signal Erratic) It has be brought in to the dealer for repair at the following mileages: 4,478, 4,699, 13,790, 14,745 and 16,487 miles. Since then, the wheel speed sensor has been replaced along with the "tone ring" and other components. Most recently, it was determined that the main wiring harness was pinched and (2) wires for that circuit were shorted. The dealer ran (2) new wires outside the wiring harness. The new wire were also NOT sleeved as per SAE vehicle wiring specifications. They "said" they removed the fuel tank to access the repair, however forensic evidence does not support that. There is still undercoating on the bolt threads. It should have been disturbed or worn off when removing the fasteners. After the repair was made, the problem once again came back while towing a smaller 5,000# trailer on 10/4/26 at approximately 16,654 miles. The failure has occurred about 8 times now since the initial repair was made.

Filed Sep 30, 2026 · Brakes · 20,000 miles · TX

The contact owns a 2018 Ram 3500. The contact received notification of the federal safety agency 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, cruise control, and ESC warning lights were illuminated. The cruise control failed to activate while the warning lights were illuminated. The dealer was contacted and confirmed that the remedy was not yet available. The manufacturer was made aware of the issue via email, and the contact received responses that the remedy was not yet available. The failure mileage was approximately 20,000.

Filed Sep 25, 2026 · Acceleration, Brakes · 50,000 miles · WI

The contact owns a 2018 Ram 3500. The contact stated that the ABS warning light intermittently flashed on the instrument panel while driving at various speeds. The contact stated that an audible chime was sounded with the warning light illuminated and the ABS, traction control, and cruise control features became inoperable. The contact stated that the failure almost caused two crashes due to the lack of the ABS functionality. The contact then received notification of the federal safety agency Campaign Number: 24V896000 (Service Brakes, Hydraulic). The dealer was notified of the recall; however, the contact was informed that the part was on backorder. The manufacturer was notified of the failure, but the contact was given the same information as the dealer. The failure mileage was approximately 50,000.

Filed Sep 9, 2026 · Driver assistance, Engine · WV

Upon start up of the vehicle multiple warning codes appear; ABS turned off, 4 wheel drive temporarily disabled, Stability turned off, front and rear parking sensors disabled, Cruise Control disabled (in all forms). If vehicle is put into drive, or issue happens when the vehicle is already in drive; Unable to detect selected gear (switching from Drive/Reverse into Park) which results in not being able to turn the vehicle off.

Filed Aug 25, 2026 · Brakes · 26,000 miles · MN

The contact owns a 2018 Ram 3500. The contact received notification of the federal safety agency Campaign Number: 24V896000 (Service Brakes, Hydraulic). The contact stated that while driving on several occasions at various speeds and hauling a trailer, the “Service ABS” message was displayed with an audible chime. The contact stated that the brake was depressed, the vehicle failed to respond as intended, and became difficult to slow down. The contact stated that excessive force was needed to depress the brake pedal. The contact stated that while the cruise control was engaged, the feature was inoperable. The vehicle was taken to a dealer where it was diagnosed and determined that the hydraulic control unit needed to be replaced. The vehicle was not repaired. The vehicle was taken to another dealer to be diagnosed, and it was determined that the hydraulic control unit needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 26,000.

Filed Aug 25, 2026 · Acceleration, Brakes · TX

When driving the Anti lock brakes, cruise control, front and rear collision warning system, automatic emergency breaking system and lane keeping system are disabled. All of these alerts are displayed on the display cluster. All of these systems are disabled at the same time. I was told by the dealership that this is caused by a faulty Wheel Speed Sensor. The Wheel Speed Sensors have been replaced 3 times and have not fixed this problem. This has happened when towing a 14,000lbs trailer and the stability of the truck and load are compromised when breaking with a load.

Filed Aug 20, 2026 · Brakes · 70,000 miles · IN

The contact owns a 2018 Ram 3500. The contact received notification of the federal safety agency Campaign Number: 24V896000 (Service Brakes, Hydraulic); however, the part to do the recall repair was not yet available. The contact stated that the ABS warning light illuminated with a continuous audible chime while driving. Additionally, the cruise control was inoperable. The vehicle was taken to the dealer, where it was diagnosed, but the vehicle was not repaired due to parts not being available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the failure and confirmed that parts were not available, and referred the contact to the dealer for assistance. The failure mileage was approximately 70,000.

Filed Aug 19, 2026 · Brakes · 135,000 miles · LA

The contact owns a 2017 Ram 3500. The contact received notification of the federal safety agency 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 on rough terrain, the cruise control failed to remain engaged, and the brake pedal was shuddering abnormally. The ABS warning light was illuminated. 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 made aware of the failure. The failure mileage was approximately 135,000.