2018 Ram 2500 complaints

Hydraulic Control Unit is failing at 58k miles. Keeps flashing on and off saying check ABS System and Check Electronic Braking System. This is a known issue by the dealer and all over the forums and is a recall on other years just not my specific model currently.

In july 2020 the service electronic braking system and service antilock braking system lights and messages started to randomly appear and go away on the dashboard at around 24,000 miles the dealer changed the abs module and controller under warranty on aug 07 2020. Now at 67000 miles on Feb 01 2023 the same messages are happening with code c0021-01 this will be the second brake control module that is failing that will have to be replaced on this vehicle another guy I work with has experienced the same failure on a 2016 ram 2500 around 30000 miles and we are told parts are on back order

Bought a truck and drove around 420 miles home, within 24 hours of purchase warning lights and sounds went on and off over and over while driving. Took it to 3 mechanic shops, and all 3 said it was the same thing. All shops said it's been a problem for that truck, but there are no recalls on it yet. The warning lights are for the very important ABS brake system and traction control system. Having a hard time finding a mechanic shop that can get the parts to fix the problem.

Code for right rear wheel speed sensor came on. Resulting in no abs,traction control, 4x4,or parking sensors. I bought new part from dealer had mechanic change it. Reflash abs and still on. Went off briefly for 5 seconds came back on. I've realized it's it's common problem. Resulting in the abs module needing replaced. But it's only a temporary fix.

Had the Service Electronic Braking System Light warning activate at around 30k miles. Cycles off and on continuously rendering cruise control inoperative. The dealer diagnosed and replaced a faulty HCU. At 44K miles the problem appeared again with the same indications. Diagnosed as the same cause. Waited a few weeks for parts, now awaiting a service appointment to have issue fixed. Over 3 months now with intermittent ABS operability. RAM's urgency to fix the issue has been extremely dissapointing.

ABS/STABILITY fault happens constantly.

ABS system failed at 6000 miles. Dealership replaced the brake system I was told. AT 37000 miles just out of the basic warranty it has failed again. Dealership can not do the repairs due to the fact there is not enough replacement parts because of all the trucks are failing in this matter. ABS/TRACTION control failure. I have been waiting four months and told maybe March now. Dealership has been in contact and doing everything possible. Its just so many trucks are failing. I am almost ready to sell it at a loss. I purchased this truck to haul my RV which I don't dare too. Also they welded my steering linkage on a recall and now I can not align my steering with new tires. I am just amazed with this repair on a heavy duty four wheel drive as well. They did not inform me on this cheap repair. Something a kid would do and not tell his dad. Also the cruise control is now not working while there is a abs failure. 6000 miles on first failure of brakes. Truck has now 42000 on it. Im afraid of driving this truck anyplace with traffic. This truck will kill someone with this issue.

The contact owns a 2018 Ram 2500. The contact stated while starting the vehicle, the vehicle started beeping with the service electric brake system message displayed. The vehicle was taken to the dealer and the contact was informed that the PCU and the HECU needed to be replaced. The vehicle was not repaired due to the parts not being available. The manufacturer was contacted and stated that the parts were on hold. The failure mileage was 40,000.

ABS & Traction Control System lights began flashing intermittently, then remain lit. Loss of ABS system control and cruise control. Dealer in Brookhaven, MS diagnosed faulty HCU as the issue in October 2022. As of 1/31/23, HCU is still on back order, resulting in loss if use of my vehicle for nearly 4 months. I use my truck to support my small business, so hardship is mounting.

The contact owns a 2018 Ram 2500. The contact stated while driving at an undisclosed speed, the ABS warning light illuminated. The vehicle was taken to the dealer where the HCU was replaced; however, the failure recurred. The vehicle was taken to Cardinale Way Chrysler Dodge Jeep Ram Santa Rosa (2727 Dowd Dr, Santa Rosa, CA 95407) and the brake control module and the hydraulic control unit were replaced. The manufacturer was made aware of the failure. The failure mileage was 19,981.

ABS and stability control fails and warning lights activate intermittently 11/11/22 (47,290 miles) The cruise control disengaged without notice when the faulty modules light up. Under a heavy load this caused severe speed reduction and momentary loss of vehicle control Reported to dealer.(Rothrock motor sales) It is a know issue with thousands of suspect ram 2500's Parts are not available due to demand. This is an intermittent fault with the Stability control and/or hydraulic control module. Both parts or one part faults the other creating a hazard for all drivers Dealer was made aware of issue and states parts are back ordered months out if at all available causing customers to drive the trucks with unsafe braking due to no other means of transportation This is a well know defect being ignored by Chrysler/Ram

At 36,100 miles I started getting ABS light warning flashing intermittently on my dash. I took it to a mechanic who told me it needed a ABS module and/or a controller device replacement but these parts have been on back order for the last four months (says RAM). It looks as if many, many people are having this same problem with this vehicle. This problem resigns the vehicle as inoperable since it involves a braking component that is obviously a safety issue. This is my only vehicle so I MUST drive it at times which makes me very nervous.

The truck shows a code indicating the ABS Control Module and ABS Hydraulic Control have failed. The warning lights come on intermittently while driving. These warning lights disable the trucks ABS functionality along with traction control and cruise control is disabled while these warning lights are on. This problem is very widespread among this particular model. Enough so that replacement parts are on backorder and there's no guarantee that replacing the parts will remedy the problem as they will replace with the same OEM parts which have failed again in other documented cases. Several dealers I have spoken with can't even repair the issue, because they say they cannot get new parts. Ram should take responsibility to remedy this problem once and for all, as it creates a major safety hazard with the braking functionality of these trucks. This is concerning, especially considering most folks with these trucks use them to tow, creating an even more dangerous scenario in the event of brake failure at highway speeds when towing.

At 67k mileage my 2018 Ram 2500 abs, traction control and electronic braking system warning lights flash intermittently, dealer, auto parts store and several online sites state it is the ABS and HCU modules electrical failure. This causes the abs system to malfunction and poses immediate threat for crash especially while pulling trailers. When the lights flash the cruise control will no engage/disengage. No dealer has these module with no clear indication of availability as of 1/27/2023

Abs system is sending codes, dealer says abs pump and module causing code

-Service antilock brake system -Service Electronic braking system - Cruise control does not work -Alarm bell ringing randomly. ABS and Skid Control warning lights at driver instrument panel cycle on off briefly or extended periods. problem escalated in early 2022 Multiple same dealer interactions actions unsuccessful . Chrysler Cares involved since September 2022. Met with dealer 01/26/2023 “ required part is not available — no estimated date when or even if the part(s) may be available….in the meantime I’m to drive the truck with bell and lights flashing and I’m also to be careful because ABS/antiskid system not working.

ABS brake control module fails. Causes system to lose abs, traction control and cruise control. I have had two units fail in 2 years.

The contact owns a 2018 Ram 2500. The contact stated while starting the vehicle the ABS warning light illuminated. The contact stated that the ABS, Traction Control System, and cruise control functions became inoperable. The vehicle was taken to the dealer and the contact was informed that the ABS pump and module needed to be replaced; however, the part was not available. The vehicle was not repaired. The manufacturer was contacted and made aware of the failure. The failure mileage was 51,323.

The ABS Hydraulic Unit 68143491AB on my 2018 RAM 2500 Tradesman needs to be replaced. The light/notification came on the week of November 1, 2022 when driving down the road at 50-55 mph and then slowing to make a turn. The truck lost traction and the ABS light came on. Fortunately I was able to brake safely. Of course the problem isn't under warranty and the truck only has 15,000 miles. The antilock brake system isn't working and is unsafe when braking suddenly. The trailer brakes for my 3 horse horse trailer will not work because those brakes are dependent on the ABS system as well. The dealership that I purchased the truck has diagnosed the problem and I have been on a list for the part since November 11, 2022. It was supposed to arrive January 18, 2023 but didn't. Now the dealership says that it will be March 15, 2023. It is a known problem but parts are not available. I haven't been able to drive the truck and still cannot. The estimated repair cost is $1070 when the part arrives. This should be a recall.

Abs on off messing with cruise control. In snow conditions feel it’s a concern. Sometimes the abs work’s most of the time it’s on/off multiple times while driving. For a 2018 truck with only a little over 24,000 miles not happy that at this time the dealership says they have no clue when they will have parts to fix

Beginning at almost exactly 28000 miles, this truck intermittently shows a warning for a fault with the “electronic braking system” and the “antilock braking system” where there are multiple warning lights and tones, and the ABS, traction control and cruise control becomes inoperative. This has increased in frequency and occurs in any conditions at random intervals. Recently it has come on and off as many as 20 times in a 12 mile trip. I am aware of a current NHTSA investigation into these vehicles as well as a class action lawsuit against Stellantis. I have reported the condition to my dealer who advised it is not covered under warranty and no parts are available to repair it.

The trucks ABS light and traction control lights intermittently come on. There is no pattern or reason for this occurrence. When lights are on anti lock brakes, traction control and cruise are disabled. The truck has just over 50K miles and was brought into the dealer for diagnostics. Repair was suggested for the HCU (Hydraulic Control Unit). Was then informed the item is currently on back order and is a well know issue with these trucks. My dealership proceeded to inform me they are currently waiting on "at least 5" of these units for trucks just like this one. This is a major safety concern should hard breaking become necessary and the ABS system isn't functioning properly. To make matters worse it's not even available. I was told they "Hope to have some start shipping out in March of 2023".

My ABS and Traction control has stopped working for the last 5 months. The warning alerts come on and off constantly. I have tried to disconnect the battery and waited an hour then reconnected but made no difference. I contacted the manufacturer and couldn’t get an answer about this wide spread problem. I use this truck for towing my Travel trailer and with this system failure it has my ability to stop safely and without the traction control, pulling the trailer and parking at campsites is dangerous. My truck is available for inspection at anytime.

I had a car pull out in front of me had to hit the brakes hard to avoid hitting him, after that my abs light came on says it is the hydraulic pump motor. I looked it up on line says they have 3 service bulletins on it, if it is a known problem why don’t they recall it? Brakes should be one of the highest priorities for safety on it. The truck only has 33000 miles on it.

The infotainment screen is malfunctioning. It makes phantom button presses. The most dangerous of all is when I am backing up. Instead of it showing the back-up camera it shows the bed camera. Very dangerous!!!!

I have made a previous report about this vehicle. New things are happening now. My mirrors are tilting and changing while driving. The backup camera is still coming on in while driving down the highway. I can't keep the heated wheel turned off. It gets so hot, its hard to hold the steering wheel. I have to pull off the road and turn the truck off. I cannot use my Bluetooth while driving because it starts calling random people, then it starts reading all my text messages. Its against the law to hold your phone while driving in NC. The doors lock and unlock while driving. I bought this truck a little over a year ago and this ghost in my truck is driving me crazy. It's unsafe while driving, with the mirrors tilting. I change the settings and the ghost changes it all... please help.

This is a known problem with the ABS control module system

C0020-16 code abs modual voltage below threshold. No cruse no ABS and no trailor brakes

Anytime while driving the truck waring lights on the dashboard will come on intermittently. The ABS and traction control light will come on, and on the display screen two different messages will appear along with alarm sound constantly dinging. One message says (Service Electronic Braking System) the other says (Service Antilock Brake System). If driving with the cruise control on when those lights and messages appear the cruise will stop working. This problem is intermittent it comes and goes, but usually very often. The truck is out of warranty with 41000 miles on it and this has been happening since Sept. of 2022. I had it diagnosed by an independent garage and had two trouble codes (C0020-01 ABS Pump Motor Control General Electrical Failure) and (C0020-16 ABS Pump Motor Control Circuit Voltage Below Threshold). The truck still seems to stop normally, but I feel very unsafe driving it. The ABS Hydraulic Control unit is unavailable from the dealer. As of today Jan.-18 2023 they are saying it will not be available until March-15 2023. This is most definitely a safety issue on the truck which should be recalled. The dealer says the parts problem is a supplier issue. I believe the manufacturer knows these are defective and is trying to avoid recall.

While the vehicle was still in warranty ~30k miles, the ABS and traction control lights would flash off and on numerous times as the vehicle was driven. Knocking the cruise control off. The dealership replaced the ABS module and HCU. Less than 20k miles later the issue has come back again. The alarms and lights flash repeatedly every time I drive and traction control along with the cruise control is unavailable. Now the truck is out of warranty, and this is over $1000 to replace. This is a known and well documented issue with Ram and needs to be looked at for a recall. The parts are backordered for 9-12 months. And the replacement does not fix the issue.

I have a 2018 Ram 2500 Diesel and throughout the past 24 months I have been receiving intermittent ABS and Traction Control lights while driving. Recently (3 days ago), the lights have come back, are staying on, and the screen displayed the words "Perform Service". I attached my diagnostic tool and the Code captured is: C0020 Status: MIL/Confirmed - ABS Pump Motor Control - General Electric Failure.

The HCU (hydraulic control unit), at approximately 70k miles, the service ABS light began to illuminate intermittently, after about 300 more road miles it would remain in constantly. At the same time, my ABS system and skid control was forcefully deactivated by the vehicle. Currently, I cannot use the full breaking capability of the vehicle or stabilization control. This vehicle is available for inspection. The problem is still present. My safety is greatly at risk when towing large loads. It is at risk during inclement weather where ABS is very important in maintaining traction. This problem has been confirmed and documented at the dealer. There was no prior warning before failure.

- I have a repeated low mileage failure of the antilock brake system hydraulic control unit. The faulty unit is still installed on the vehicle. - The ABS hydraulic unit failure intermittently renders the ABS system, traction control system, and electronic stability system inoperable for varying durations. This is the 2nd failure of this system on the vehicle. The first failure occurred during normal highway driving. The 2nd failure occurred while traveling in the mountains in the snow. Had I not been experienced driving a non-abs vehicle in inclement weather we could have crashed. - The issue was diagnosed and confirmed by a local Ram dealership service department. It was escalated to Ram customer care due to lack of parts availability and high cost of repair. Ram escalated part delivery and denied financial assistance. The vehicle is out of warranty for this particular part. - There are various intermittent warnings present. The fault condition will rapidly annunciate and then clear many times in a short time period, or stay active for long periods, or not occur at all. The fault condition appears to be completely unpredictable but is repeatable.

The contact owns a 2018 Ram 2500. The contact stated while driving approximately 35 MPH and slowing for a traffic signal, the vehicle's four tires locked up due to the ABS system failure. The contact stated no warning light was illuminated. The contact's vehicle skidded into the rear end of another vehicle. The contact's grill and bumper were damaged and broken as well as the inter-cooler radiator had suffered damage. The other vehicle sustained a crushed trunk. There were no injuries sustained by either the contact or the driver of the other vehicle. The police were on the scene and filed a report. Both vehicles were drivable, the contact drove his vehicle to a body shop. The contact did not have the vehicle diagnosed or repaired for the ABS problem. The contact stated that since the accident the ABS light illuminates intermittently and the brakes have locked up when the contact had been towing a trailer (approximately 14,000 lbs. of weight). The manufacturer had not been informed of the failure. The failure mileage was approximately 68,000.

Intermittent warning on dash and chime with "Service Electronic Brake System" and "Service Antilock Brake System". On most daily drives the chime and warning go off about every 2-4 minutes. I have video of it going off 30 times in one minute. Dealer wants to replace brake controller and head unit at a cost of $1600. This is a safety issue and should be recalled.

Abs brake light comes on intermittently taking off my ABS brakes and anti skid

2018 Ram 2500 with 18,900 miles. While driving at various speeds, the ABS and traction control warning lights illuminated with an audible chime. The brakes would slip upon depression of the brake pedal while the warning lights are illuminated. ABS control module/traction control is intermittently failing. There is no antilock braking or traction control on wet/icy conditions.

The contact owns a 2018 Ram 2500. The contact stated while driving at an undisclosed speed, the ABS failed intermittently. The vehicle was taken to a dealer, where it was diagnosed with an ABS module system failure. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 14,000.

My truck at 38,000 miles started flashing occasionally ABS and traction control warning lights. Neither my ABS or traction control are working when the lights are on. Now I have 45,000 miles on my truck and both lights are on all the time I had the code read and it is C0020-1. My understanding is this is a known problem and my cost is over $1000.00 to fix this problem. I contacted my dealer and they told me my truck is out of warranty and they don’t know of any recalls or investigations into 2018 Ram 2500 braking systems. I have not gotten the issue fixed and we drive it as little as possible. The truck is available for inspection. I am not willing to pay the dealer to inspect the truck.

The contact owns a 2018 Ram 2500. The contact stated while driving at various speeds, the ABS and traction control warning lights illuminated with an audible chime. The contact stated that the brakes would slip upon depression of the brake pedal while the warning lights were illuminated. The vehicle was taken to the dealer and the mechanic linked the cause of failure to the HCU (Hydraulic Control Module); however, the parts for the repair were on back order. The manufacturer was notified of the failure and referred him to the NHTSA hotline for assistance. The vehicle was not repaired and remained in the possession of the dealer. The failure mileage was approximately 75,500. The VIN was not available.

•ABS control module/traction control is intermittently failing •no antilock braking or traction on wet/icy conditions •yes, both dealer and a second opinion garage have both diagnosed the problem •only the garage mechanic inspected the failing part •vehicle warning lights come on when part is failing

The contact owns a 2018 Ram 2500. The contact stated while driving 65 MPH, the defroster was engaged, however, the Automatic Climate Control display independently switched from defrost to A/C due to the delamination of Automatic Climate Control touchpad screen. The contact stated that she manually re-engaged the defroster; however, the failure persisted. The contact stated that the failure had been reoccurring while driving. The vehicle was taken to the dealer where it was diagnosed that the Automatic Climate Control display needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 99,000.

The antilock brake system has failed. The vehicle is available for inspection. Without the antilock brakes operating properly, the vehicle is harder to control in emergency situations or on slippery surfaces, endangering the safety of myself and others. The problem has been confirmed by an independent service center. ABS and traction control lights are on. Service ABS Brake System message on dash. ABS and cruise control inoperative. Code C0020-01 present. Symptoms first appeared May 17 2022.

At approximately 104,000 miles beginning last September I started intermittently receiving a warning service abs brake system and traction control. It would be more frequent when going down a bumpy road. It continued for a long time and gradually became more constant. Internet searches had suggested fixes of removing the fuse for the abs system, in and of its self creating another safety problem. Ram has issued a bulletin for its mechanics telling them to change the ABS control, so obviously this happens a lot. The invoice for the repair is a attached which says there was an internal short on the abs pump. I note that beginning in 2019 Rams there is recall for a faulty abs pump. Obviously the pump on my truck is also faulty and should be replaced a Ram's cost by a recall. I will attach the invoice if there is a place to do so in this form. Lots of complaints about this issue can be found on line. Some examples are at: https://m.carcomplaints.com/Ram/2500/2018/brakes/service_brakes.shtml and https://www.ramforum.com/threads/2018-ram-4x4-diesel-service-anti-lock-brake-system.153111/page-4

The contact owns a 2018 Ram 2500. The contact stated while driving 40 MPH, the ABS, cruise control, and traction control warning lights illuminated. The vehicle was taken to the dealer to be diagnosed. The contact was informed that the brake control valve needed to be replaced. The vehicle was repaired but the failure recurred. The manufacturer was contacted and notified of the failure. The contact was referred to the NHTSA Hotline for assistance. The failure mileage was 14,000.

Truck was bought by me 12/28/22 with around 4900 miles on it. Within driving the vehicle approximately 40 miles the service electronic brakes and service abs lights began to illuminate intermittently. I have driven approximately 2000 miles and they keep going on and off, seemingly while hitting bumps. From my research I believe it to be a failure of the abs hydraulic control unit. I believe the manufacturer knows this to be a common problem and has revised the part in question. This should be a recall on these particular trucks, a quick Google search of the part number of the hcu will reveal numerous people with the exact same issue.

Abs and traction control lights come on and off dealership replaced the hcu and the problem stopped. 2 years later and only 3,000 problem started again. Contacted the dealership and they said its a known issue but no parts are available and no recall

C0020-01 code began coming in and out immediatly following a service at my local Ram dealer. I returned to the dealer after the warning lamps and messages all came in around ten times within a mile of picking my truck up from them. The dealer used a device to clear the messages, but the alarms returned again after I left. There are multiple warning lamps and messages that remain in as a result of this: service anti-lock braking system, ABS warning lamp, traction control lamp, and a loss of cruise control functionality. While the constant "dinging" sound and loss of cruise control on a truck with less than 20K miles is disappointing, I am concerned whether or not these warnings are indication of a serious safety hazard to my family and/or those we are on the highway with. My truck is available for inspection. The issue was confirmed by my local dealer who cleared the alarms when they first came in.

The ABS module and associated control unit have failed. This causes the anti lock braking and traction control systems to be inoperable which can cause the vehicle to lose control which can cause injury or death. FCA is aware that these units are defective and refuses to fix them.

Traction Control Light is illuminated, Service Trailer Braking System, and Service Trailer Brake System Notifications are present on engine startup. ABS system appears to be inoperative in slippery conditions. Service Engine Light comes on every 15 miles or so with Codes P0572 and P0572pd. Download codes and they go away.