108 complaints reported

2018 Ram 2500 ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL,SERVICE BRAKES

Owner-reported problems and safety issues filed with NHTSA. Review common failures, severity levels, and complaint trends over time.

Reports
108
Crashes
1
Fires
0
Injuries
0

Complaint Timeline

Chronological view of owner reports

Oct 2026

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.

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Jul 2021
Feb 2026

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)

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Feb 2026
Dec 2025

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.

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Aug 2023
Dec 2025

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.

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Nov 2024
Dec 2025

Brakes went out abs/traction control/tpms lights on. Brake pedal goes to floor 50% of the time. Have to downshift and use engine brake to stop.

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Oct 2025
Nov 2025

My HCU has failed and now I don't have anti-lock braking, electronic stability control, traction control, or cruise control. I have contacted Mopar and two Ram dealers in my area but they just tell me there is no remedy. This has been going on since December of 2024.

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Dec 2024
Jul 2025 Crash

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. which it did. unfortunately i am one of the people in this world who could not afford to not drive my vehicle as the truck was $70k new and i still am currently driving it due to not being able to afford to replace it of park it and rent a vehicle. The HBU has been a known issue in these trucks for the passed year and they just issued a recall on 12/08/2024. this problem was first noticed on 05/08/2024. was taken to dealer shortly afterward and was told that these are known to fail and currently no remedy to the issue. as of 01/07/2025 there is still no remedy or time on when parts are available for replacement.

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Jan 2025
Mar 2025

HCU has failed on my truck back in July of 2024 it was impossible to find a replacement part got a recall letter on November had abs track control, and cruise control loss repeated dinging sounds to service ABS and electronic brakes and most recently you can hear the brake pads slightly rubbing on rotors and can feel a little bit of resistance while driving down the road

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Jun 2025
Dec 2024

July 11, 2024 Message alert appeared indash with instructions to service ABS system. This vehicle experienced the exact same issue in April of 2022 and was taken to the dealer(Patterson Dodge-Tyler,TX) for repair, where the ABS Module was replaced. The replacement was not covered by the warranty.

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Nov 2024
Dec 2024

Purchased vehicle new. ABS and TC lights presented on dash intermittent. Cruise control inoperative when lights on. Had issue under warranty and had components replaced to resolve issue and now happening again. Afraid to have family in vehicle with inoperative safety systems.

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Jan 2024
Nov 2024

My truck has 85000 miles on it. I have now experienced the ABS and traction control warning lights. They come on and off intermittently. The cruise control does not work when these lights are on. With all the complaints, its time Ram issues a fix under a recall.

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Oct 2024
Nov 2024

My brakes locked up due to the abs pump not working.

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Nov 2024
Oct 2024

It's clear that my abs module is bad but it consists of three components. Mopar online doesn't have any components available to fix the problem. And the Dealer is selling the components separately and telling you which one they will sell you first and also at a higher price than what's available to you online

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Jan 2024
Oct 2024

My truck has right at 80,000 miles. Every so often I get two dash lights. One is ABS service and anti skid warning. They randomly show up. They pop up very quickly then go away. But it happens non stop. I have done some research and it seems that there is thousands of people with the same truck and year model with this same issue. I went to the dealer in Seguin, Tx and they told me that there was really nothing I could do to fix the issue, unless I wanted to wait eight months. But the new part rarely last. They flat out told me to not follow any one too close because hard braking could fail without anti skid working properly. RAM needs to make this right. I can’t believe that there has been this many people complain about a serious safety concern and nothing has been done.

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Oct 2024
Sep 2024

Continually getting ABS warning and "Service electronic brake system soon" warning. Electronic Stability Control suddenly shuts off without warning to include cruise control if engaged. ABS and ESC lights remain on most of the time with constant chiming. This is a widely known problem. Recall just came out for later model years but not these.

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Sep 2024
Sep 2024

Vehicle will display Service Electronic braking system randomly throughout driving the vehicle. The cruise control is not available when the code shows up. Also, the ABS and Traction Control lights pop up. The problem will shortly go away when I press the brakes all the way.

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Sep 2024
Sep 2024

I bought my 2018 Ram Truck in 2019 new from a dealership. the first sign of a problem started at about 25,000 mi. It started sending tones with the message "Service Electronic Braking System" and "Service Antilock Brake System". It would toggle between these two messages and sound warning tones while the truck is in operation. The first shop I took it to replaced my carburetor. That was not it. I then took to a Diagnostic Shop and the message from the computer read: ABS pump motor control general electrical failure. On the dash it also shows the icon for slippery road conditions. Looking on the internet i realized that this is affecting 2017's and 2018's. There are a lot, maybe all of them being affected by this potentially dangerous malfunction.

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Jan 2021
Sep 2024

ABS Brake system failure. Multiple reports of ‘17-‘18 yr models with exact problems.

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Jan 2023
Aug 2024

My abs system is not working the ETC is not working was told this is because of the abs pump and abs computer. Most safety components related to brakes not working. There are over a thousand complaints to Chrysler about these trucks and still no recall. Please help.

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Feb 2024
Aug 2024

The "Service Electronic Braking System" warning comes on and off intermittently with an annoying "DING" while driving. It never stays on and always just comes on, DING, and goes away but repeatedly. It will eventually go away after driving a bit but then comes back unexpectedly. This also disables the Cruise Control. There are tons of complaints throughout the RAM forums and I see a lot of complaints filed here on NHTSA. The dealer is obviously very aware of the problem as the replacement parts are not available except for months of waiting, if at all. The dealership has not only stated the part is a long lead item and on back-order but it will be $1200 to $1600 for replacement and that part may fail as well!

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Feb 2024
Aug 2024

The abs control module and HCU are faulty . No parts have been available for a fix. I have now been driving a truck in the north with no ABS , 4 wheel drive, cruise control or traction control. This truck is a hazard to everyone on the road but with no parts it’s hard to fix it. I only have one vehicle. Tons of people have the same issue and nothing is being done. Ram won’t do anything, stallantis wont do anything. It’s just crazy

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Jan 2022
Aug 2024

Getting the Service Electronic Brake System, Traction Control, and Anti-lock Brake System. First noticed these alarms a couple years ago but they cleared by themselves. Sometime this 2024 Spring, around 70k miles these alarms started again. This time the alarms are nuisance going on and off multiple time a minute all by itself. Cruise control won’t work when alarms are on. When I checked forums, seems like there is a problem with these modules. The supply of the parts is a problem also. I ordered the parts from Mopar and after I paid for the parts and received an order number. The next day Mopar cancelled my order tell me to go to the dealer. Seems like Mopar is monopolizing these parts.

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Aug 2024
Jul 2024

The systems in question are the ABS and Traction Control Systems on my 2018 Ram 2500 6.7L 4x4 Heavy Duty. This vehicle has had issues from the beginning with these systems as the first repair took place at 10,640 miles at the dealership it was purchased from. This took care of the codes/lights for a short period and was covered under warranty but the same issue persisted not too long after mileage-wise. The next time this issue occurred was when the truck had 22,628 miles, the brake fluid was flushed in an attempt to correct the ABS light but was unsuccessful. The truck was then brought to another repair shop to correct the same issue again where the ABS Hydraulic Module, ABS Control Module, and the brake fluid were replaced at 23,702 miles at the sole cost of the owner. As of early July 2024, at 45,000 miles the lights have again started intermittently coming on stating there is an issue with both the ABS and Traction Control Systems and must be serviced. After reading through multiple forums and speaking to other owners, this seems to be a common occurrence and needs to be looked into by the NHTSA due to major safety concerns. Although there were no accidents or police reports in this case, this malfunction poses a major safety hazard for the driver, passengers, and others on the road if a recall is not issued. There should be no reason a $60,000+ heavy duty premium truck consistently has these issues with no accountability and/or repercussions held to the FCA group. My personal concern is for my family as this is our primary vehicle and living where we commonly have inclement weather, if the ABS and Traction Control Systems fail randomly during a storm, this has a high potential to cause major injury or death to both our family and other drivers on the road. Not to mention the potential cost of collision damage to the vehicle(s) and/or other person's property.

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Apr 2020
Jul 2024

Anti lock brake module repetitively fails. First one replaced 7/2021 with 51,xxx miles. Second failed 7/2024 with 69,000 miles. Loses ABS system, cruise control, electronics affect electronic throttle and stabilitrack.

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Jul 2024
Jul 2024

Abs system failed and had to brake hard causing the wheels to lock up and lose control of the truck ,lost speedometer, brake lights, 4x4,cc,trailer brakes

Type: Vehicle, Vehicle: 2018 RAM 2500, Manufacturer: Chrysler (FCA US, LLC)
Incident: Nov 2024

Trend Over Time

Complaints by year

Quick Summary

The 2018 Ram 2500 has 108 ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL,SERVICE BRAKES complaints on file. 1 crashes have been reported. Review the timeline above for detailed owner experiences.