There are 16 owner-reported driver assist & adas complaints for the 2018 Ram 2500in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The cruise control on our truck does not work when the Hydraulic Control Unit is not working. It has started having issues this past summer which causes the message to be displayed on our dash with a warning sound. This may cause the ABS and ESC not to work properly, which is very concerning. We had planned to pull our 30 ft travel trailer across the US this winter to the south, but with these issues, we are hesitant to drive the truck a long distance. We are also hoping that the truck will stop correctly this winter since we live in Wisconsin and have snow and ice that we have drive in on a regular basis. This is concerning and we are debating as to whether or not the truck will be safe to drive. We called the manufacturer today about the part to repair the problem and there is not one yet. They said we could have a dealership do a “temporary fix” that we would have to pay for and have reimbursed. It was hard to understand the 2 people we talked to (from the Philippines - had heavy accents), so we don’t know if that “fix” really would work. They also said we could get a truck rental through the dealership, but we have no idea if they would pay for it or not, or how long it will be until there is an actual part produced by the company that will fix the problem. We are hesitant to do that if the cost would be on our shoulders, since it could be substantial. So, we may be without our vehicle this winter. It also looks like we will not be able to take our camper south for the winter this year like we always have done since we retired a few years ago due to this safety issue. This is not acceptable and we would like some answers.
In reading all the forum ABS and traction control fault. Comes on and off depending on speed and hit any bumps in the road. Looks like there is open recalls but none for 2018 RAM 2500 Diesel. This is a safety issue and could cause a massive accident. Cruise control will not work when sensors are on.
As I am driving, (2018 ram 2500 6.7l with 45000 miles) the “service electronic brake system” and “service automatic brake system” will flash on and off intermittently. I took it to the dealership and they stated possibly the HCU. But since the codes flash intermittently and at completely random times they couldn’t say fer sure. But it does have to do with HCU system. I did a quick google search and discovered this is a recurring issue with the 2017-2018 Ram models.
And the anti-breaking system and the electronic braking system lights keep coming on. Maybe two months ago I had to have the left wheel assembly, everything repaired because the wheel was about to fall off.
The ABS is malfunctioning and affecting cruise control. This can cause major safety issues. The truck is constantly dinging over and over while I drive. I contacted the dealer but they said ram has not came out with the parts to repair it yet. There is a class action lawsuit against them for this reason but nothing is still being done yet. Many people have complained of this issue.
abs traction control light keeps beeping and coming on seems to be a issue with this year vehicle
2018 Powerwagon intermittent abs traction control light dinging on and off randomly. Does it more in bad weather. During dry sunny days sometimes it never comes on. From what I can tell I don’t seem to have any problem with my brakes.
The ABS/Anti Skid warning lights and notifier goes off every one to three minutes, clears itself then repeats. I travel two hours to work and return to the obsessive malfunction.
The ABS Module has failed, only 20k miles on the truck. RAM advises they have 10 trucks locally waiting on the same part, and advise a national shortage as this part had a manufacturing problem. They will not provide a part # to replace it as they don't know what it will be. Cruise control will not work either due to the safety issue of the problem. I have a safety concern about the use of the vehicle now and Ram cannot fix or private garages can not get the part either.
I recently have had continuing ABS SERVICE WARNINGS LIGHTS and bells on my dash while driving. I took it to my local garage and they confirmed that the ABS MODULE is defective and needs replaced! No parts available at this time and is . on BACK ORDER. THIS IS A LARGE SCALE PROBLEM. I am now very concerned with driving my truck. AND WILL COST $1000 to repair if and when they can get the parts??
Service Electronic Breaking System Light came on March 25, 2023. took truck to Ram dealership March 30th and was told the ABS Pump is going out so breaks won’t work correctly if I have to stop quickly. The replacement won’t be available until August 2023. Called another Ram dealership and was told it’s an engineering problem they are working on. Either way it’s a problem having a truck I can’t safely drive for 5 months due to the breaks not functioning properly. This should be a recall, my truck has 62,000 miles on it. It is going to cost $1360.00 to fix it in August.
2018 Ram 2500, ABS and traction control lights cycle of and on resulting in chiming. The result of the effected system is handling and drivability in hazardous weather conditions and snow. When not illuminated Cruise control can be used but will be disengaged once the ABS and traction control warning lights illuminate resulting in the need to respond to a decelerating vehicle. An independent service station has concluded and collaborated with the dealership that the it has a bad ABS Module, HCU or both. Dealer stated parts are not available and are on back order for more than 6 months
Vehicle has had multiple failures of the ABS system. One failure occurred while under warranty at 14,228 miles, but a subsequent failure at 45,994 miles is stated as "not covered" under standard or safety-related warranty. In the first failure, the "CONTROL A 68143491-AA" was replaced. For the second failure, "CONTROL A 68143491-AB" and "Module AN 68347098-AB" are to be replaced. The replacement has not occurred as of this date (3 months post diagnostic) due to a shortage of parts. It is claimed that there are so many failures of these parts and the pass-rate during manufacturing inspection is so poor that a resolution time for my primary vehicle is unknown. The quoted cost of this safety-related epidemic problem is near $2000 or almost 4% of the cost-new of the vehicle.
I have been dealing with the abs light going on & off with alarm constantly for over a year now. The HCU and ABS module needs to be replaced from what the dealership tells me. I don't understand why there's not a recall. Still waiting on the part to become available.
The contact owns a 2018 Ram 2500. The contact stated that the infotainment system ceased randomly without warning. The back-up camera was inoperable. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 18V398000 (Back Over Prevention) however, the Vin was not included. The vehicle was diagnosed and repaired; however, the failure persisted. The manufacturer was informed of the failure and the contact was awaiting a response. The failure mileage was approximately 23,242.
Randomly my 2018 ram 2500 ABS/Traction control go out. It’ll happen for 10mins in an out. Sometimes not at all, and others all the time. When the ABS and traction control like come on and off on the dash it causes the brakes to become spongy and harder to brake.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026