The Service Antilock Braking System warning and Service Traction Control warning illuminate regularly. There are no known problems with the systems but it is unknown if they will work when needed. The lights come on up to one time per second, and sometimes not for days. There are hundreds of people on forums complaining about this, no known fix. Replacing components does not seem to solve the issue. I have video available if needed.

- Lanexa, VA, USA

Abs pump and control module built with defective part-??s causing pump and module failure which in turn caused break failure

- Dunn, NC, USA

Anti-lock brakes do not work on my 2017 Ram 2500 diesel and haven't for over a year and a half. Light constantly flashes on dash with alarm. I brought it to the dealership, and they said the "Hydraulic Control Unit" is faulty but was told Ram is not even making the part. In Michigan winters, anti-lock brakes are a huge safety issue. My truck is the diesel version weighing in at 7,000 lbs. Trying to stop in the winter is a huge problem. Even if I sell the truck, it's still going to be a problem for whoever buys it. If you Google it, you will find numerous other Ram pickups for 2017 & 2018 with the same problem. I don't understand why brake issues are not a recall.

- Holland, MI, USA

Truck lost abs, traction control, and cruise control at 34000 miles. On 12/30/19 the truck was repaired. Now at 61000 miles the truck lost its abs, traction control, and cruise control in a winter storm hauling a trailer. The original part has been superseded with a new part both of which are unavailable.This truck is only used to tow a 15000lb camper and a gooseneck equipment trailer. Mopar is unwilling to do anything to rectify this problem which is very unsafe. I was able to locate the part in Nevada but due to Mopars "managed allocation" they would not sell it to someone in Ohio.

- Woodville, OH, USA

Started having abs and traction control issues in early October of 2022. Have had two cases of compleat brake lock up. Took to ram deal for repairs and it was diagnosed as the abs hydraulic unit. When road conditions are icey and slick will have issues with the brakes locking up.

- Menomonie , WI, USA

"Service ABS, " "Service Electronic Breaking System, " and "Traction Control" caution lights illuminate on vehicle during driving. Started with intermittent illumination. Took vehicle to dealer and was told that ABS pump failed, but no parts are available to repair. Service advisor said it was ok to drive, that the brakes will function without ABS system. Brake performance is diminished. There is no pumping sensation when I apply brakes hard.

- Virginia Beach, VA, USA

When driving, the Service Anti-Lock Brake System (ABS) light would intermittently cut on and off and would disable the ABS system and Traction Control system. This would happen at any speed. I scheduled an appointment at Pearson Chrysler Dodge Jeep in Richmond, Virginia for 11/22/2022. I was told the ABS Control Module was defective and the part had to be ordered. The dealership advised that this equipment has malfunctioned in many 2017 Ram 2500 trucks and that the part was on back order until late January 2023. They also advised me that if I drove the truck when the light was on I would NOT have anti-lock brakes or traction control. I have called multiple times to inquire about the status of my part order to get the safety issue fixed. I was told in January that the part still wasn-??t in and that the timeframe was pushed out to March. I called again today (3/17/2023) and was told the part now was in the process of switching suppliers and that they did not know if or when my part will be available. This is a huge safety issue. My truck has been mostly parked since before Thanksgiving and it-??s now almost April. RAM as a manufacturer is creating a large safety issue for anyone with this same issue. I have not been able to get my truck serviced properly with OEM parts due to their negligence. This is a warranty claim and my contract will expire in 2 months and I am not sure if this will be covered once or if the part ever arrives. Please assist in getting this issue resolved. I do a lot of towing and depend on this truck to be safe for me and other drivers and RAM is preventing this from happening. My truck is still mostly parked and cannot be trusted on long trips. My truck is also due for state inspection in June and this warning light will cause my truck to be rejected and then I will not be able to drive it at all.

- Mechanicsville, VA, USA

I have dash lights going on and off for the ABS and traction control. This is very intermitted. On two occasions I have experienced times where I had to slam on the brakes to avoid an accident. Both times the ABS failed to work causing me to come to near collision with another vehicle. One of the times this caused me to go off into a ditch. This was with slick roads and snow covered in areas. Have also had several times the truck would steer out of control with no traction aid. I am constantly losing speed control using cruise control. It will work for a bit and then turn off when the ABS and traction control lights come on.

- Illiopolis, IL, USA

Second failure of ABS system in 2 years. Error code c0020-1 for failed ABS HCU part number 68143491AB. Replacement parts are currently unavailable from manufacture and has been in the status for nearly 6 months. Service center is unable to restore functionality of brake systems and vehicle has been un-driveable due to ABS safety concerns since October 2022. As stated this is my second failure with same part, first failure was in Sept 2020.

- Daphne, AL, USA

ABS light and alarm come on and goes off at random intervals. This issue was repaired before on 03/04/2020 and now the issue is reoccurring when rain or hight humidity. The original ABS code on the system was C0020-01 (ABS pump motor control - general failure). The HCU part #68143491AA was replaced and ABS module the issue corrected. My concern is that the ABS is disabled on the vehicle once the condition occurs and could result in loss of control during a hard or panic stop. I pull a 7,000 lb trailer and am concerned that if a hard stop occurs the truck could start sliding and cause the truck and the traile to lose control.

- Edcouch, TX, USA

Abs unit, hcu failed. Lights flash on an off over an over while driving. ABS light stays on so ABS will not work. Cruise control will not work. Keeps throwing service abs, and service electronic brake controller

- Santa Clara, CA, USA

Left front caliper locked up upon lightly pressing brake pedal and brake pedal pulsing while towing approx 10k lbs. ABS and traction control light were illuminated. C0020 code - ABS Pump motor control. Truck has had 4 other similar issues without locking up caliper yet resulting in replacement of HCU and ABS model. At 58,536 miles truck has been at dealer for 60 days needing 5th replacement of HCU and ABS pump that is not available to order per RAM Customer Care case# 85015233

- Orlando Fl, FL, USA

ABS light and alarm come on and goes off at random intervals. This issue was repaired before on 10/06/2020 and now the issue is reoccurring. The original ABS code on the system was C0020-01 (ABS pump motor control - general failure). The HCU part #68143491AA was replaced and the issue corrected. My concern is that the ABS is disabled on the vehicle once the condition occurs and could result in loss of control during a hard or panic stop. I pull a 12,000 lb camper and am concerned that if a hard stop occurs the truck could start sliding and cause the truck and the camper to lose control.

- Athens, AL, USA

Faulty break module. Dash reads service antilock break system, ABS light on in dash, traction control light on as well. Cruise control will not work because of this issue. Intermittent occurrences at first, now constant after 3 years. It has been taken to multiple dealerships, while under warranty with these exact problems. No results! An independent service center diagnosed this issue and has ordered the part. Have been waiting two months now still nothing.

- Haubstadt , IN, USA

The service abs and anti lock brake light comes on and off. I have talked with 3 different dealers and they all told me the abs module is probably bad. The part is on backorder for the last year, so I can-??t get it fixed.

- Medina , TN, USA

ABS / Traction Control lights began intermittently turning on. After roughly 5k miles, the lights are on all the time. The truck is throwing code C0020-01. From looking around online, this is certainly not a unique situation. The fact that there is an updated HCU (P/N 68143491AB) to be released later this year, shows that this is a known issue.

- Bridge City, TX, USA

ABS and traction control systems are malfunctioning. Dodge dealer states that the abs module and hcu need to be replaced which both are on back order. Roughly $1500 worth of parts and labor are required to fix issue at my cost. Truck has 80,000 miles currently and problem started about 1000 miles/month ago. Both abs and traction control lights flash on/off constantly.

- Sharon , SC, USA

ABS failure i have taken my truck to the dealership 3 times to have the ABS module replaced due to failure.my truck only has 67,223 miles on it.the ABS lights comeon the dash and Traction control lights as well when this happens.this needs to be investigated and resolved.please help me and so many others with this issue, Thank you.

- Kingwood, TX, USA

Truck continuously warns and chimes to "Service Electronic Brake System." Truck no longer has working ABS. https://static.nhtsa.gov/odi/inv/2022/INOA-PE22012-9925.PDF

- Baytown, TX, USA

ABS module and hydraulic control units replaced in 2019, after driving the truck less than 20k miles the exact same issues have returned. Truck is out of warranty now, no cruise control, ABS, or traction control. Very common issue amongst 2017-2018 Rams. Second issue happened recently when temps dropped below freezing. DEF system fault - DEF injector checked for crystallization. No crystals - truck will go into limp mode rendering it useless due to an inferior component manufacture is aware of and have addressed on new models but have not afforded older models a solution.

- Murfreesboro, TN, USA