ABS and traction control warning lights intermittently. Loss of cruise control. This appears to be a known problem with an expensive repair.
2018 Ram 2500 complaints
Owner reports filed with NHTSA about this vehicle, newest first and reproduced as filed. They are unverified accounts: one proves nothing, and a pattern across many is the thing worth reading. Back to the full 2018 record →
Coming down a ridge with a loaded hay trailer approximately 14500 pounds, the Service Electronic Braking System and Service Automatic Braking System messages appeared in the cluster EVIC display and the service brake and traction control warning lamps illuminated and there was associated chime. I applied the brake pedal and it went to the floor with zero affect. The trailer brakes didn't respond either. I used the exhaust brake and skillful downshifting (it has a manual transmission) to slow the vehicle and then used the foot applied emergency brake pedal to bring the truck to a stop. I was lucky I was already carefully descending off of the ridge and I was able to downshift and slow before engine RPM became an issue. I cycled the ignition and the warnings went away. I very carefully and very slowly completed my descent off the ridge. Now the warnings, light, and chime are incessantly coming in and then just as soon turning off. I don't trust the truck is fit for my purposes at this point in time. I hadn't been that scared since my dad and I lost a rear axle and brakes on our 1969 Ford F-250 with a load of wood in the back coming down a mountain road when I was 12.
Service electronic brake systems, service anti-lock brakes. replaced under warranty and now the light comes on intermittently. Obvious problem with the Ram trucks
The contact owns a 2018 Ram 2500. The contact stated while driving at an undisclosed speed, the ABS and traction control warning lights illuminated on the instrument panel. The vehicle was taken to the dealer, who diagnosed failures with the ABS control module and hydraulic control module. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 48,000.
Brakes when depressed do not pull equal. No cruise control. 4 wheel drive is not working properly. Traction control not functioning properly Have brought vehicle to a garage. Abs/hcu unit is the problem.
My 2500 hydraulic control unit is causing light to constantly come on and go off causing cruise control and ABS lights. This is a rampant issue with the 17-18 year truck but no recall. The part is bad that cause the manufacturer to come out with a replacement part but still no recall and this is the second time it’s happened the first time it was under warranty. But not this time.
Abs dash light
ABS and Traction control has been lost and have created a safety risk especially during inclement weather. The ABS pump or the ABS control Module is faulty in multiple years Ram vehicles. I believe based on forums there is a recall issue with these parts.
Radio keeps going out and turning off, and then comes back on with different stations. Next is my outside mirrors on both side , heater to mirrors don't come on at all to defrost
Antilock braking and traction control system failed. I was driving on a snow/ice covered road and hit the brakes with no anti lock control and truck slid in road side ditch. Truck has not been repaired. This is a known problem that Dodge is well aware of. This could have caused serious injury or death under alternate driving situation or heavy traffic. Any help would be greatly appreciated.
I’m receiving two codes; Service Antilock Brake System and Service Electronic Braking System. I met with my mechanic this morning and he said that this is a very common problem with the 2018 Ram 2500. Since this is a reoccurring safety issue i feel that Dodge should resolve not the owner. Should I get in an accident from a break failure who is responsible?
I have a 2018 Ram 2500. Service anti-lock brakes message is intermittently coming on and off. This occurs every few seconds while driving the truck. I took the truck to a repair facility and was displaying a code for the ABS/hydraulic control unit. I learned that there is not a known replacement to solve the issue. I have connected with other Ram owners who are dealing with the same issue while replacing unit multiple times. Ram needs to address this issue, I and along with many others are driving with no anti-lock brakes.
I spent close to $1,700 to replace hydraulic control unit (HCU) at a local dealership on 4/7/2022 when my pickup truck was only 25,392 miles. Since the flashing of ABS/Traction Control lights did not stay on, I paid for the first diagnostics at this dealership but did not read the error code. I had to return couple times, and the service tech finally saw in person when the lights were flashing and was able to use the factory diagnostic scanner to read the error code, C0020-01. This error code directed the tech to replace hydraulic control unit (HCU). "...The replacement procedures says to drive vehicle if code comes back replaced abs module..." From online search, I found out that the replaced HCU in my truck was still XXXXXXXXAA, not XXXXXXXXAB, as shown on the invoice. Therefore, it explained that my truck now has the same ABS/Traction Control light flashing problem while driving or idling only after no more than 13,000 miles after the repair. So no cruise control could be used. I returned to the same dealership today, 1/15/2024. However, the service advisor warned me that I'd have to pay for the diagnostics ($296) that might not guarantee to find the error code since the flashing was not happening in front of the service advisor. I was told that until the flashing became permanent then return like last time. Based on this conversation, I felt that the dealership did not want to take any responsibility. My last paid repair at this dealership would only cover new part and la
On October 6th, 2023, my ABS and traction control light began to intermittently come on and turn off. Truck had about 60k miles on it at this time. Problem still persists now at 63k miles and seems to be getting worse. In 5 minutes of driving at freeway speeds, the lights come on and turn off about 20-30 times. I worry that my ABS system is not functioning properly and may result in an accident. Issue has been replicated by technicians at 4 Wheel Parts. Code reader is showing a C0020-01 code is stored in the computer.
ABS and Traction control lights keep going on and off, this still continues and it looks like Ram knows this is a safety issue. Dealers have no parts for repairs
The ABS system is malfunctioning intermitantly. The vehicle can be available upon request. The safefty of any persons in the vehicle are at risk if ths brakes dont work properly. The problem has been diagnosed by an independant service center in Angola Indiana. There are warning lamps on for the ABS and a warning bell as well.
24700 miles is when the Warning lights and chimes started. I went on line and apparently this is a common problem with 2018 Ram Trucks. ABS Warning and "Service Electronic Braking System" Lights are on. Went to dealer (Wilson Jeep Chrysler Dodge Ram) they didn't even look at the Truck or hook it up to Diagnostic. They said it's the Hydraulic Control Unit . Parts are on National Back Order, they know about the problem and their shop as fixed over 60 trucks alone. *Manufacturer as not issued any recalls addressing this issue*
Vehicle's "Service Anti-Lock Brake System" light and warning tone is coming on intermittently. I researched this to a common problem with the Hydraulic Control Unit (failure), which is known by the dealer to be common problem among 2017-2018 Ram trucks. Problem with the original manufacturer of this unit, with no parts available for replacement at this time.
The ABS and traction control has a fault that’s turns off the abs system. It’s been troubleshot to the HCU pump. There are several ram trucks with this issue. Fault code is. C0020-01 ABS pump motor control
The HCU in which controls your ABS and Traction control will malfunction while driving down the road when this happens you have no ABS, traction control or cruise controls. The dealer part is unavailable through the dealer due them saying that they are reviewing it. This is a major safety concern due to the fact if you are traveling and it malfunctions and need to stop quickly you cannot or if it malfunctions and have cruise control set to a speed it will slow you down and can cause an accident. When vehicle was carried to dealer and asked what to do the dealer just said to drive it and don’t follow to close to anyone, that is not the answer that needs to be given.
I own a 2018 Ram 2500 with 104,000 miles. During the period of ownership I have had to replace the ABS/traction control module twice. Each time the repair is over $1,000.00 to have a Ram dealer diagnose and repair my abs brakes. This is a very significant safety issue. Without the ABS system I cannot control this vehicle in an emergency stop situation. You cannot use cruise control. This ongoing issue needs to be investigated and Ram needs to be held accountable for a well known issue.
The display in the center console keeps asking if i want to update the clock. Nothing stops it from constantly popping up…going off… popping up. Truck only has 25000 miles
Constantly throwing ABS code and electronic braking system code, and then, turning off the alerts on dashboard. Many complaints of 2018 models were found online and a class action lawsuit.
Traction control/ABS illuminated on dash board as error codes. When driving at any speed the brakes are grabbing the rotors without touching the pedal. The feel is like tapping on brakes. I've replaced wheel bearing hubs for ABS speed sensors, replaced all speed sensors. Replaced the ABS MODULE and HCU MODULE and to no avail. Chrystler has had the main components on backorder. The error codes are targeting both components ABS and HCU. The Ram community has the same concerns as I do. This issue should be recalled because the ABS and HCU prevent from fish tailing and erratic traction
My ABS CONTROL MODULE is faulty and must be replaced only 57,000 miles on my diesal 2500 Ram. I’m aware of the class action lawsuit regarding this very issue. This issue needs to be addressed in a recall and Dodge needs to repair at their expense. My truck is at the dealership due to the ABS/TRACTION warning and the $2,600 cost to replace the faulty module.
I purchased my 2018 Ram Power Wagon used in 2020 with only 2300 miles on it. In 2022, I started to have intermittent ABS and traction control lights flashing on and off. I took the truck to the dealership and was informed the HCU was defective and needed to be replaced. The truck was still under warranty and was repaired. In Nov 2023, again the ABS and traction control started flashing. Again I took the the truck to the same dealership for repair. This time, however, I was told the truck in no longer under warranty (timed out, not mileage (26000 miles)) and the part wasn't going to be covered, additionally, was told the HCU part was not available, as it was under engineering re-design. After discussion with the service manager, he agreed that since this is the second occurrence, I wouldn't be charged for the part, just labor for the repair, however, the part wouldn't be available until the spring / summer of 2024! I asked if I could continue to drive the truck while waiting for the part to come in and was told that I wouldn't have anti-lock brakes. Obviously I expressed my concerns about driving the truck and asked if Ram was going to issue a safety recall for the part. I was told no. I am still waiting for the part and refuse to drive the truck in the rain or wet conditions.
2018 ram 2500 under 15k miles. Service ABS light started coming in a few hundred miles ago.
Truck is a 2018 Ram 2500 6.7l Diesel Cummins with ~80,000 miles. ABS System Pump Issue. Began around August of 2023 and randomly shows error codes and warning lamps. It is getting progressively worse/more frequent as of today January 9, 2024. Warnings lights for ABS and Traction Control come on and off during drive cycles randomly. This has made driving in wet or icy conditions dangerous for me and my family due to loss of traction control and the inability for the ABS system to safely stop the truck in wet or icy conditions. Error codes have been confirmed with a code reader "C0020 - ABS Recirculation Pump – General Electrical Failure"
Abs light and message on dash came on indicating electrical abs service needs to be performed. Took it to dealer was told needs abs sensor but they are not available. Vehicle is not safe to drive as brakes will lock up if applied .
ABS Brake system failure. Multiple reports of ‘17-‘18 yr models with exact problems.
ABS module has gone out as it has in almost all of the 2017-2021 ram 2500 with the 6.7 Cummins engine
Intermittent ABS brake failure warnings displayed in the message center and warning lamps, message comes on and off erratically. Speed Control is inoperative when message is displayed. Concern has occurred immediately after starting the vehicle before putting into gear and while driving at any speed. Concern is very erratic, does not usually stay on steady for more then 30 minutes. I have multiple videos of warnings coming on and off. Vehicle is currently at the dealer for repair 1/9/2024. The Ram dealer states the ABS HCU module failed and needs replaced. Dealer indicated this was a common issue with 17/18 model year RAM Heavy Duty's. Obviously erratic operation/function of the ABS could potentially cause dangerous braking conditions especially when loaded or towing.
ABS/TRACTION CONTROL intermittent alarms. Vehicle alarms on and off constantly. Dealership has said they have no fix except replace all ABS electronics for about $4000.00 and can not guaranty it will work. This constant alarm turns off the Cruise control.
The contact owns a 2018 Ram 2500. The contact stated that while driving at 55 MPH, the ABS warning light was illuminated. The vehicle was taken to the local dealer, where it was diagnosed and determined that the ABS needed to be replaced. The vehicle was repaired, but the failure recurred. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 37,000.
Truck throws code C0020-01 and my ABS and traction control lights on dash board start to go in an out. Proposes a HUGE safety risk. Truck has 48,000 miles which puts it out of the warranty that covers this issue. Lots and lots of info online about this being a common issue and RAM has yet to recall it still.
My ABS dash light and traction control light started coming on. Service Antilock Braking System and alternated to Service Electronic Brake System. It would constantly bing and display the ABS light and the Traction Control light
The contact owns a 2018 Ram 2500. The contact stated that while driving at an undisclosed speed, the ABS and traction control warning lights were intermittently illuminated. The vehicle was taken to an independent mechanic, who diagnosed that the hydraulic motor needed to be replaced. The vehicle was not repaired. The contact stated that the hydraulic motor had previously been replaced twice under warranty; however, the failure recurred. The manufacturer was made aware of the failure and a case was opened. The manufacturer advised the contact to take the vehicle to the dealer to be diagnosed. The failure mileage was approximately 58,000.
ABS system service light comes on, along with message on dash. When this happens, loss of abs brakes. Took to local dealer, was told faulty abs sensor, but none were available at this time. I have a 2018 Ram 2500 sitting in my driveway because it’s not safe to drive
My truck has an intermittent ABS light along with a traction control light and a message displaying Service antilock brake system and service electronic brake system. these lights also sometimes stay on until the next ignition cycle or even several ignition cycles. it also disables the cruise control as well causing an extreme loss of speed on the highway especially when traveling up steep grades. there were no issues leading to the cause of the lights to come on to my knowledge and i have not visited any sort of dealership or service center regarding this issue nor do i have the time or funds to correct this issue at this time.
After much research and blogs this 2018 2500 diesel turbo has a problem with its antilock braking system module. I have taken it to several places since the light keeps going off and on and have no solutions since this part is on back order. I need to find a solution for this truck. Please advise someone.
Intermittent ABS / traction control light and dinging! 49000 miles. Just like every other person complaining about the same exact issue on 2018s. I’m a disabled vet with a family of four on a single income. I can’t afford a 1200 abs module that lasts only 1-2 years. Clearly this is a major manufacturer issue, experienced by many Americans. This needs to become a recall. This is [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Abs traction control light abs brakes dont work
The ABS controller has been replaced twice and has now gone out again. When this happens it turns off the ABS, traction control and cruise control.
The ABS keeps going off and this is the second time. I read reviews and this is a known issue, that needs to be recalled.
ABS lights go on and the truck chimes sometimes, not all the time. Cruise intermittently does not work as well. This is a well-documented issue online. I took this to the original dealer and he said this is a common problem. Even after getting it fixed, it will occur again. The dealer said it is still supposedly safe to drive, but it is very concerning to see ABS warning lights regularly popping up on my dashboard. Many others have parked their trucks and are not driving them because of this issue.
The ABS - Anti-Skid lights come on and off intermittently while driving, or it's actually done this just sitting still a few times. When it first started around July 2023 the truck had about 90k miles on it. I called the dealership, they said keep driving it till it stayed on all the time so they could track what was causing it. Well it never stays on, it is on/off at random. The random occurrence nearly caused a bad wreck while driving onto an on ramp wet road. The truck dinged as I was making the turn, it started spinning sideways and when I got stopped, I was sideways, I had to move quickly to get out of other cars way. When I tried to go it spun around the other way sideways, stopping traffic. I was lucky the other cars brakes worked or I would have been T-Boned. If I had been pulling the trailer or boat there would have been no way to control the spin or brake sliding, which I am positive would have been a bad wreck. I was not going too fast either, about 30-35 when all this happened. Dodge Ram company needs to fix this issue NOW before someone gets killed. I have an excellent driving record and want to keep it that way. I cannot pull my camper, boat or equipment trailer now cause I'm afraid this will happen and not be so lucky. Sad thing is, Dodge knows about this and are doing nothing about it.
The abs and traction control keep going in and out and is very unsafe to drive such a large truck. I called dealership and they don’t have the abs module and haven’t had it for over a year. So they know it’s an issue and can’t give us any since manufacturer is at fault. My abs and traction don’t work. Thank you
The Anti-lock Braking System (ABS) and the Hydraulic Control Unit (HCU) issue is present on my vehicle. The problem is intermittent and occurrences cannot be predicted, duration fault varies, sometimes repeatedly cycling fault/no fault/fault etc. When the fault occurs cruise control is either canceled (if active) or not available. Occurs at varios speeds. Please refer to NHTSA's open investigation (NHTSA Action Number: PE22012).
The following messages suddenly came up on my screen. Service electronic braking system, service ABS system. Then the following warning lights came on. Traction control warning, ABS light, tire pressure unavailable, parking sensors unavailable. The cruise control is also unavailable. It is winter here in MN and I thought it would be ok until I get it fixed, I will just use 4 wheel drive. 4 wheel drive is also not available. Am not able to get the vehicle repaired, parts on national back order for months. Do not have a backup vehicle. Have to drive an unsafe vehicle to and from work in winter conditions. Can’t lose my job.
Vehicle showing Electronic Brake System as well as Antilock Brake system and traction control system not working. Pinging all the time, currently 165,000 miles on truck. Same issue was dealt with on 8/15/2020 with 39512 miles on truck. Was an out of pocket expense for $927.10 to fix this very important safety related issue. The cruise control is also affected by these messages and will not work. This is known issue around the country with these trucks and something must be done. If folks don't have money to fix or parts to get fixed we will just drive these safety hazards down the highways and jeopardize ourselves and others. What is your fix to this known problem because you all obviously are not correcting the issue for the known problem.
Reading these
NHTSA publishes every complaint as the owner wrote it and investigates only a fraction. Spelling, capitalisation and judgement are the filer’s own. What carries weight is repetition: the same component failing the same way across many filings, and whether the manufacturer eventually opened a recall for it.
Full record for the 2018 Ram 2500 → · Every 2500 year → · How the figures are calculated →