What 2,489 owners told NHTSA about the 2018 Ram 2500 Regular Cab

My 2018 Ram 2500 has been experiencing a message about servicing the electronic braking system and it is causing issues with my entire truck. When the issue arises, my automatic running boards will constantly work up and down without the truck even being on, I am having a constant message popping up on my infotainment system with a constant dinging, causing my traction control light to be illuminated on my dash. My Ram app showed me that I have 4 services required on 7/5/2026 which include, Safety Recall C4B, Antilock Brake System, Brake Warning Light and airbags. This causes concern for not only my safety but my families safety as multiple people operate my vehicle along with my child. The last thing anyone wants is for someone to get hurt especially when it could be avoided however I feel that the incident is being avoided since it has taken over almost two (2) years since this recall was issued and nothing has been done to repair said recall. I am a Law Enforcement Officer in WV along with a Volunteer Firefighter. I see the outcomes of issues with negligence of persons driving vehicles and rarely do I see anything where it is not the driver's fault. I would not wish to have to investigate into the cause of a crash that took someone's life where a known issue was able to cause the accident and no sort of remedy has been found for almost two years after being known.

NHTSA ODI 11748909

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.

NHTSA ODI 11748016

ABS Recall since November 2024. NHTSA has done nothing! Ram needs to establish a Repurchase/Replacement program now!

NHTSA ODI 11747029

1.defective Hydraulic Control Unit (HCU), NHTSA safety recall (Recall C4B / 24V896000) for 2017–2018 heavy-duty Ram trucks. 2.Failure to stop properly. 3.Yes I took to a certified dealer in Madera, Ca Gill auto group and they would not do anything about the issue. 4. No the certified dealer in Madera, Ca Gill auto group has not fixed the unsafe recall issue. 5. The warnings displayed are (service anti lock brake system and service electronic brake system) appeared 18 months I took the truck in for service to Gill auto group in Madera, Ca and no correction to the recall issue was performed

NHTSA ODI 11741250

There is an open safety recall for the replacement of the HCU for my model year truck. I have been in direct contact with a few different dealerships near me to try to get this part replaced since it disables ABS on my truck and I am told they do not have parts for this recall. I received the recall November of 2024. It has now been 18+ months waiting to get the truck repaired. At this point it is not acceptable.

NHTSA ODI 11738533

24V-896 Recall open since November 2024. No known resolution. How is this considered a reasonable amount of time? The truck chimes the entire time I drive it and it is a safety issue because it spins tires and has no abs or traction control.

NHTSA ODI 11738334

My 2018 Ram 2500 was involved in a collision with another vehicle. The vehicle in front of me had to slam on their brakes for an object in the roadway. When I slammed on my brakes, the ABS and Traction Control lights lit up on the dash, my tires locked up, and I skid approx 100' and rear ended the vehicle in front of me. There was no shoulder to pull off to and oncoming vehicles in the other lane. There was no way out of the collision. If the ABS system had worked properly, my vehicle and the vehicle in front if me would not have collided. The faulty component is the Hydraulic Power Unit for the Antilock Braking System. The last time I brought the truck in for service at Southland Dodge in Houma, LA, USA, they offered to fix the recall. I gladly accepted. When I picked the vehicle up the system was still malfunctioning.

NHTSA ODI 11733078

For almost two years the ABS has been intermittently non functioning. Verified by an independent then David Taylor Dodge in Belleville Illinois in February 2025. There is apparently still no fix for it. This is unacceptable especially considering that it is a heavy duty diesel truck purchased solely for pulling very heavy trailers. Not being able to safely stop is dangerous and dealer says there is nothing they can do.

NHTSA ODI 11732811

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 an undisclosed speed, the brake pedal was depressed and the vehicle failed to respond as intended. The contact stated that the vehicle felt like it was sliding, and the braking distance was extended. The contact stated that on a separate occasion, the cruise control failed to function as intended. In addition, the remote start-up could start the vehicle, and the vehicle unexpectedly turned off. The ABS, traction control, and engine warning lights were illuminated while driving. The local dealer was contacted and confirmed that the part for the repair was not yet available. The dealer informed the contact that the heater grid had failed and advised the contact not to drive the vehicle. The contact stated that the vehicle was not driven daily due to safety concerns. 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 failure mileage was approximately 34,000.

NHTSA ODI 11728603

The Abs light came on a couple of days before the accident happened.Then light would turn off after awhile but would re appear when truck was driving for a few minutes. My boyfriend was driving to work when he applied the brakes and truck slid into the pole during the winter .Truck was towed and fixed at auto shop. No one was hurt just damaged my truck completely in the front. When I got a letter for a recall on the abs that’s when I took in to the dealership and got that issue fixed. There was one other light that was coming on after the accident but the dealership fixed that issue as well since it was part of the recall.

NHTSA ODI 11727742

MANUFACTURER HAS NOT YET SUPPLIED NOR COME UP WITH A REMEDY TO REPAIR RE-CALL NTSBA 24V-896 / MANUFACTURER RE-CALL C4B. I PULL A FIFTH WHEEL TRAILER WITH GRANDCHILDERN RIDING OIN THE VENHICLE WITH US WE DONT WANT A FAILURE. WE RELUNCTALLY DO NOT DRIVE THE VEHICLE WHICH ONLY HAS 44000 MILES ON IT NOW HOWEVER WE NEED TO UTILIZE THIS VEHICLE FOR WHICH IT WAS INTENDED. PLEASE HELP.

NHTSA ODI 11727831

Recall has been out there for a year and a half with no remedy. Unsure if our vehicle is safe to drive. When we do drive, the alarms on the dash go off constantly.

NHTSA ODI 11720953

I am submitting this complaint about Safety Recall C4B / NHTSA 24V‑896 for my 2018 Ram 2500 (VIN: [XXX] ). I am active‑duty military living in Virginia; the truck is registered in Tennessee. FCA’s recall notice says the brake hydraulic control unit (HCU) may fail, causing intermittent then permanent loss of ABS, ESC, and traction control, and that this “may cause a vehicle crash without prior warning.” My truck shows as affected, but I have been unable to get the recall repair. The notice also states that the remedy is “not currently available” and that FCA will contact me when it is. As of February 2026, more than a year after the recall was initiated, I am still being told that parts are unavailable and there is no firm ETA for when the repair can be performed. In the meantime, I continue to drive with a known safety defect FCA has already acknowledged. My truck’s ABS and ESC lights cycle on and off while driving, consistent with the defect description. This creates real concern about whether ABS/ESC will function during emergency braking or low‑traction conditions, especially given that I use the truck for commuting and towing. I am also aware that FCA is reimbursing owners who have already paid out of pocket to replace failed HCUs, which suggests that replacing the HCU is the recognized fix, even as owners like me are told there is “no remedy available” under the recall. This appears to leave many vehicles on the road with a known safety defect and no timely, practical way to obtain the promised free repair. I respectfully request that NHTSA review FCA’s handling of Recall 24V‑896, evaluate whether FCA is providing a remedy within a reasonable time, and consider any enforcement or additional oversight needed to ensure parts are supplied and repairs completed promptly for all affected vehicles. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11719732

The warning lights have been on for months indicating the ABS is malfunctioning, we have had it to the dealership garage several times and they keep telling us we are on the list but the parts are not available even though it has been over a year. If they fail completely we will have no control over the braking system which can cause a vehicle crash. We have to limit the driving we do with our vehicle because of the danger that is involved. We have another issue for our vehicle: I contacted Chrysler twice with no response. and addressed it with our dealership and they have not helped. We have reported this issue to Chrysler about our 2018 Dodge Ram 2500 6.7L Cummins diesel concerning the Particulate Matter Sensor. This has been ongoing for a year and Chrysler is aware of this problem and has issued recalls on them from 2019 and up. We need this matter to include the 2018's including ours as it has the same issue. Please help us to have this matter resolved.

NHTSA ODI 11717803

Been getting abs warning alarm for over 2 years and no fix in site. Also cruise does not function when in alarm been living with this alarm for 2 years or more. I would like to sell vehicle but cannot with this unrepaired recall. Need some action asap.

NHTSA ODI 11711604

The vehicle had multiple unresolved safety defects from the time of purchase. The radio and electrical system never functioned correctly and could not be repaired despite repeated dealer visits. The stabilizer bar failed and fell out while driving, causing loss of steering stability. The vehicle is currently subject to an open federal safety recall for ABS/ESC/traction control loss with no repair remedy available. These defects created a serious crash risk and caused loss of safe use of the vehicle. The manufacturer and authorized dealer failed to repair the vehicle.

NHTSA ODI 11710746

I own a 2018 Ram 2500 equipped with the 6.7L Cummins diesel engine that I purchased brand new in Iowa. For approximately the last four to five years, my vehicle has displayed persistent warnings including “Service Electronic Braking System,” ABS warning light, and traction control warnings, accompanied by constant audible alerts. As a result, multiple braking safety systems are disabled, including anti-lock braking, stability control, traction control, and cruise control. For several years I contacted Ram dealerships and the manufacturer regarding this issue and was repeatedly told that repair parts were unavailable. During this time, widespread reports of identical failures were being discussed on owner forums and among dealerships. A federal safety recall was eventually issued for the ABS control module, and I received my official recall notification letter approximately one year ago. Despite the recall being active, the manufacturer and local dealerships continue to state that no replacement parts are available and that there is no estimated timeline for when a remedy will be provided. As of today, my vehicle remains unrepaired and continues to operate with disabled braking safety systems and constant warning alarms. This is a heavy-duty truck that is regularly operated in Iowa, where inclement weather conditions including snow, ice, and heavy rain are common. I am concerned about the safety risk posed by operating a vehicle with compromised braking and stability systems and the lack of any available remedy after more than a year under an active safety recall. I am submitting this complaint to document the ongoing safety defect, the prolonged lack of remedy, and the manufacturer’s inability to provide a timeline for repair of this federally recalled braking system.

NHTSA ODI 11710119

Service ABS light constantly alerting, every time I touch brakes. Loses cruise control. I called two local dealerships who tell me parts are unavailable. This is on recall, why aren’t parts available?

NHTSA ODI 11709673

The contact owns a 2018 Ram 2500. The contact stated that while driving at various speeds and hauling an RV, the trailer brakes intermittently became inoperable. The message "Trailer Brakes Disconnected - Check Trailer Wiring" was displayed. The contact replaced the trailer wiring; however, the failure persisted. 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 vehicle was taken to the dealer, where it was diagnosed and determined that the HCU had failed, and the failure was related to the trailer brakes' failure. The vehicle was not repaired. 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 and informed the contact that the recall remedy was available. However, the dealer sent a document to the contact that stated that the part for the model year of the vehicle was not yet available. The failure mileage was approximately 82,000.

NHTSA ODI 11709365

Recall/Campaign: Ram/Stellantis C4B Problem: “Dealer says remedy/parts are not available / cannot schedule recall repair.” This has been a problem since 2023. Have not had ABS for years or 4x4 and i live in a snow environment. My breaks and rotors are trash from not having ABS.

NHTSA ODI 11707725

I am the owner of a 2018 RAM 2500 that is subject to NHTSA safety recall 24V-896 (manufacturer recall C4B), involving a potential failure of the Hydraulic Control Unit (HCU) affecting ABS, electronic stability control, and traction control systems. This recall has been active for over one year on my vehicle. Despite repeated contact with authorized RAM dealerships and the manufacturer, I have been informed that no repair remedy or replacement parts are available, and no timeline has been provided for when the recall can be completed. This is a brake-related safety recall, and the continued inability to repair the vehicle creates an ongoing safety risk. The manufacturer has not provided an interim remedy, loaner vehicle, or alternative solution. I am filing this complaint to document that the recall remains unresolved due to parts unavailability and to request NHTSA review of the extended delay in providing a safety remedy.

NHTSA ODI 11707407

I am reporting ongoing safety concerns with my 2018 RAM 2500 (6.7L Cummins) related to repeated emissions/aftertreatment failures and the lack of timely repair options. These failures directly affect drivability and can create hazardous situations if the vehicle enters derate mode while towing or driving at highway speeds. Over the past year, my truck has suffered multiple emissions-related component failures, including DEF dosing issues, SCR/DPF system faults, repeated warning messages, and the threat of speed-limiting derates. The vehicle is used for normal personal use, is well-maintained, and has not been modified. Despite proper maintenance, the same types of failures continue to recur. A major concern is that local RAM dealers have extremely limited ability to service these issues in a timely manner. Appointments are often weeks out, and when the truck is already in a failure state it is unsafe to continue driving. I have previously reported safety-related defects to NHTSA (ABS/HCU), and those issues later resulted in recalls—so I know that reporting matters. The combination of emissions failures, derate risks, and lack of dealer support creates a situation where the vehicle may suddenly lose power or become unsafe to operate, especially when towing or traveling in rural areas with limited service availability. I am requesting that NHTSA review whether there is a broader pattern of emissions-system failures on RAM heavy-duty trucks with the 6.7 Cummins and whether these failures pose a safety risk due to the forced-derate logic and inability to obtain timely repairs.

NHTSA ODI 11704542

The Brake Hydraulic Control Unit (HCU) covered under Safety Recall C4B has been unavailable for several years, leaving my 2018 Ram 2500 with ongoing ABS, traction control, and electronic stability control malfunctions. This defect has already caused an actual accident. In January 2024, during snow conditions, the ABS and traction control failed while I was braking in my driveway. The truck slid uncontrollably and struck a tree, causing over $10,000 in damage that had to be repaired through my insurance. This incident occurred specifically because the brake and stability systems did not function properly. The issue continues to create serious safety risks, especially in winter. The warning lights for ABS and traction control are on constantly, accompanied by continuous dinging that is extremely distracting and stressful to drive with. The truck loses stability on snow or ice, braking distance is increased, and the vehicle behaves unpredictably. I am now driving again in snow and ice this winter, and I am genuinely afraid this defect will cause another accident. Despite this being an acknowledged safety recall, every dealership I contact says the replacement HCU part is still “not available” for my vehicle. This has been confirmed repeatedly by multiple dealerships and by the manufacturer’s recall hotline. I have attempted to get this recall repaired for several years with no success. Because the recall remedy is unavailable, the vehicle remains unsafe to operate, yet I have no alternative transportation and must drive it daily. I also cannot sell or trade the truck, which has caused significant financial harm. I am requesting NHTSA assistance because the recall remedy has not been provided within a reasonable timeframe, the vehicle remains unsafe, and the defect has already contributed to a crash.

NHTSA ODI 11702732

Please add this to complaint number: 11702732 This is a supplemental complaint regarding the same safety issue I previously reported involving Safety Recall C4B on my 2018 Ram 2500 - complaint # 11702732 In addition to the safety concerns and the prior accident I described in my original complaint, the unresolved recall has also caused significant financial harm. I still owe approximately $15,100 on the vehicle and must make a $515 monthly payment. Because the recall remedy has been unavailable for years, I cannot legally sell or trade the vehicle, even though it should have substantial equity. The truck’s resale value has dropped due to the open safety recall with no remedy, leaving me financially stuck with an unsafe vehicle I cannot get rid of and a high payment that I currently cannot afford due to job loss. The unresolved recall continues to put me in danger during winter driving, and the lack of remedy has created both a safety crisis and a serious financial hardship. Please attach this information to my previous complaint for the same VIN.

NHTSA ODI 11702746

I have a 2018 ram 2500 purchase from the dealership within the same week of purchase magically the ABS system failed driving down the highway in the middle of winter time kicking out cruise control and traction control causing me to almost crash on the highway and get hit by a semi Not only have I had the truck for almost 2 years unable to drive it I believe the dealership should never been able to sell me this vehicle with the known problems and what they already failing ABS system making me unaware of the issue Yes and the brake system not working in the truck sitting has caused other failures in the vehicle now a transmission shop told me the ABS failure affecting other parts of the truck caused the transmission brain to not work correctly and my warranty could not fix the transmission is corrected and fixed so I have those problems now that can't be fixed until the ABS systems fixed and there's no parts available still so my warranty is going to expire before the break system can get fixed Before it went out on me there were no lights I purchased it from the dealership so obviously they had cleared out the failure and lights to make the vehicle sale because the ABS light came on during test drive and I was told that was a new feature to remind you to check brake pad for wear and tear

NHTSA ODI 11702407