983 of the
3,392 complaints filed about the RAM 3500
are about the braking system —
100% of everything owners reported.
The worst model year for it is 2018.
IN 2022 the HCU for the anti-lock brake system fails. On 06/06/2022 The HCU unit was replaced at a RAM deanship. By 2024 the system had failed again. Still there is no resolution solution offered by RAM. It is now 09/14/ 2026. The warning has been going on and off since 2024. Now, the warning light is on almost constantly. Our safety is at risk because while this is happening, the ABS system as well as the traction control system are not functioning. Yes, the RAM dealership in Petaluma CA. has verified that this problem exists.
NHTSA complaint #11764122 — an unverified report by a vehicle owner.
The contact owns a 2017 Ram 3500. The contact stated that the ABS and traction control warning lights were illuminated on the instrument panel. The contact stated that with the warning lights illuminated, the 4WD feature was inoperable. The contact researched and found several recalls and warranties associated with the failure. The vehicle was taken to a dealer, and it was determined that the vehicle had experienced a hydraulic brake failure; however, the VIN was not under recall, and the part was on backorder. The contact stated that while attempting to shift into 4WD, the message “4WD Unavailable” was displayed. The manufacturer was notified of the failure. The vehicle was not repaired.
NHTSA complaint #11762724 — an unverified report by a vehicle owner.
towing control module, brake lights work trailer breaks will not grab, lights on the module do not come on the module has never worked since I bought the 2024 dodge 3500 dually diesel
NHTSA complaint #11762908 — an unverified report by a vehicle owner.
The contact owns a 2022 Ram Promaster 3500. The contact stated that while driving approximately 30 MPH while making a left turn, the steering wheel suddenly jerked to the left and the right. The EPS warning light illuminated. In addition, the contact stated that while in reverse, the steering wheel jerked and became firm. The local dealer was not contacted. The vehicle was not diagnosed or repaired. Additionally, while driving at various speeds and making a left or right turn, the brakes unintendedly activated while the accelerator pedal was depressed. The manufacturer was not made aware of the failure. The failure mileage was approximately 45,169.
NHTSA complaint #11761284 — an unverified report by a vehicle owner.
The contact owns a 2018 Ram 3500. The contact stated that the ABS and the HCU were inoperable while driving at various speeds. The contact stated that it was difficult to pull his trailer. The contact received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic). The local dealer was contacted, but the vehicle was not diagnosed or repaired because parts were on backorder. The dealer informed the contact that the repair could be paid for out-of-pocket and that reimbursement. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 75,000.
NHTSA complaint #11759633 — an unverified report by a vehicle owner.
The contact owns a 2018 Ram 3500. The contact received notification of NHTSA 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.
NHTSA complaint #11759429 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11759338 — an unverified report by a vehicle owner.
On multiple occasions the U-Connect system in the listed 2026 RAM 3500 has gone completely black and was inoperable until a reset was performed. The trailer brake gain control and exhaust brake are accessed and controlled via the touch screen U-Connect system. This failure poses a significant safety issue when the screen goes black and the controls cannot be accessed when pulling a trailer. This can lead to failure to slow/stop the vehicle while in motion, tire failure on the trailer etc. The only method to regain access to the brake controls is to perform a reset of the U-Connect system which can take 2-3 minutes to complete. Stelantis is and has been aware of this issue for some time and has no resolution at this time.
NHTSA complaint #11759518 — an unverified report by a vehicle owner.
The contact owns a 2018 Ram 3500. The contact stated that on various occasions while accelerating from a stop or while driving at highway speeds, the vehicle refused to shift gear and the vehicle lost automotive power, with the ABS and traction control warning lights illuminated. The message "Service Electronic Braking System" was displayed. The contact stated that after the failure occurred, the vehicle was restarted. The local dealer was not contacted but the vehicle was not diagnosed. The vehicle was not repaired. The contact referenced NHTSA Campaign Number: 24V896000 (SERVICE BRAKES, HYDRAULIC); as a possible cause for failure. The manufacturer was notified of the failure. The failure mileage was 150,000.
NHTSA complaint #11759184 — an unverified report by a vehicle owner.
The 2025 and 2026 dually 3500 Ram trucks with the 12" AAM rear axle are having issues with the rear wheel speed sensors (different sensor for each side). They apparently fail or are not able to properly communicate to the computer. When this happens, the following are disabled: -ABS -Auto Emergency Braking -4x4 -Electronic Stability Control -Cruise Sometimes, the engine won't shut off. The gauge cluster will state it can't detect which position the transmission is in. So, you cannot shift, and you can't shut the truck off, and you can't drive. You are stuck in place with a running engine. Despite Stellantis releasing a new revision of wheel speed sensors (AB revision), they have failed in less than 2,000 miles on my truck. Many, many dually owners are experiencing these failures. My truck has been to 2 dealerships for a total of 5 repair attempts so far.
NHTSA complaint #11759011 — an unverified report by a vehicle owner.
The 2025 and 2026 dually 3500 Ram trucks with the 12" AAM rear axle are having issues with the rear wheel speed sensors (different sensor for each side). They apparently fail or are not able to properly communicate to the computer. When this happens, the following are disabled: -ABS -Auto Emergency Braking -4x4 -Electronic Stability Control -Cruise Sometimes, the engine won't shut off. The gauge cluster will state it can't detect which position the transmission is in. So, you cannot shift, and you can't shut the truck off, and you can't drive. You are stuck in place with a running engine. Despite Stellantis releasing a new revision of wheel speed sensors (AB revision), they have failed in less than 2,000 miles on my truck. Many, many dually owners are experiencing these failures.
NHTSA complaint #11759017 — an unverified report by a vehicle owner.
I have been submitting reports to you for several months with no resolution. The truck yet again experienced the same problem, twice, within 1 week. It would start but then claim that it couldn't detect what gear it was in and said "can't shut off until transmission is in park". After cutting electrical power to get it to shut off, it would not start. After getting it started, it would not go into gear. Once I got the engine running and transmission to go into gear, it no longer had ABS.
NHTSA complaint #11759018 — an unverified report by a vehicle owner.
The contact owns a 2017 Ram 3500. 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 made aware of the issue. The contact had not experienced a failure.
NHTSA complaint #11758605 — an unverified report by a vehicle owner.
I own a 2017 Ram Laramie Longhorn dual-rear-wheel truck with an open recall (NHTSA Campaign 24V896000, Chrysler code C4B) that was issued in November 2024. The dealership has no parts available and RAM Customer Care recommends a "service part" which is also not available. Confirmation from the dealership involves leaving my truck at the service center for several days with no loaner car, which I can not afford to do for work. I am having intermittent warning lights for my Anti-lock Braking System and Traction Control which are directly associated with the above-mentioned recall. I often tow with this vehicle and this issue is now an active safety system problem associated with the recall that makes this vehicle dangerous to drive if the hydraulic unit fails while towing or when driving, the safety systems of Traction Control, Anti-lock Braking System, and Electronic Stability Control will not function. Please help.
NHTSA complaint #11758306 — an unverified report by a vehicle owner.
The contact owns a 2018 Ram 3500. The contact stated that while driving at an undisclosed speed, several unknown warning lights illuminated. The dealer was contacted and diagnosed the vehicle with brake hydraulic control unit failure. The contact associated the failure with NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic). The dealer performed a temporary fix and replaced the part with the same part that was failing. 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 27,312.
NHTSA complaint #11758258 — an unverified report by a vehicle owner.
The contact owns a 2018 Ram 3500. 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 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.
NHTSA complaint #11758325 — an unverified report by a vehicle owner.
The contact owns a 2017 Ram 3500. 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 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.
NHTSA complaint #11757925 — an unverified report by a vehicle owner.
My ABS alarms constantly as I drive. This issue started in September 2024. I cannot use my truck as desired because of constant alarming making traveling, as the truck was purchased for, impossible to enjoy for us. I have contacted my dealership approximately twenty times about repairing. I have been given multiple answers but have received no help. I have contacted customer care, customer service departments at Stellantis/Mopar five times and basically have been given the same answer, we are working on a repair. Please get Stellantis/Mopar/Ram to help customers. Manufacturer Recall Number-C4B NHTSA Recall Number-24V-896 Recall Status Recall: Incomplete, remedy not yet available
NHTSA complaint #11757861 — an unverified report by a vehicle owner.
2026 Ram 3500 with <2700 miles. The trailer brakes are not applied appropriately when using the brake pedal, even though it will brake appropriately (with 1 of 3 trailers) while squeezing the manual override. This includes all brake levels (1-10 gain). When the trailer is disconnected, the truck will brake and show the appropriate level of pressure on the dash, though when the trailers are connected, one might press their foot 50% of the way down on the pedal while only 5% of the pressure is displayed on the dash and applied to the trailer brakes. This has nearly caused 3 separate accidents while towing (16,600 pounds total) when people merged and braked hard in traffic. Ram dealership initially refused to investigate until persisting and becoming very angry. At that point, the issue was confirmed. Brake module parts are pending replacement at this time. Their current "test methods" don't include an actual trailer and are insufficient to diagnose and identify the issue. There is no doubt that this will kill someone at some point. There was eventually a service trailer brake system message that popped up, though this wasn't persistent and went away automatically, not stored permanently, when the trailer disconnected. This message appeared previously approx 3 times, though there was no trailer connected to the truck at the time. Proximity sensors in the front and rear are also faulty, delaying notification of item in proximity, not displaying at all, or randomly being accurate. It also detects traffic that is a significant distance away. The same Ram dealership repeated the issue and called this "normal or expected behavior". It is, most definitely, not, and may present a danger to small children walking around the vehicle, pets, or potentially property due to the lack of notification of objects present.
NHTSA complaint #11758110 — an unverified report by a vehicle owner.
The contact owns a 2018 Ram 3500. The contact received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic). The contact stated that while driving on several occasions at undisclosed speeds, the ABS message was displayed with an audible alarm. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 70,000.
NHTSA complaint #11757647 — an unverified report by a vehicle owner.