2018 RAM 3500 Complaints

The HCU and ABS module for 2018 and 2017 model years of the ram 3500 and 2500 are a known issue that should be recalled. There's some type of issue where the ABS and the traction control lights will turn on affecting the safety of the vehicle. Many people have the issue if you do a quick search on any RAM forum. From my understanding there was a design change on the replacement part. The easiest and probably most common fix is to remove the fuse for the ABS.

The ABS/HCU module failed. I had to replace on 05/14/2021. At the time of replacement, I was unaware the NHTSA launched an investigation October of 2022. At this present moment, I am faced with replacing the ABS/HCU module again. The cruise control does not work and the traction and ABS lights are on again.

ABS and Traction control lights have been on/off for 60,000kms approximately, have had it to the dealer approx 8 times for this issue, still unresolved. Traction control acts extremely odd at times and break pedal feels "soft" at times. Lights on dash come and go intermittently and so does the "soft" break pedal feeling. Warranty is now up and dealer continues to want to replace random parts @ my expense.

September-October 2022 --The Anti-Braking System module has quit working. (ABS). Requested replacement part from Dealership in October 2022. Dealership advises Mopar cancelled parts request to them. I have no anti braking working on vehicle. Dealership advises me to contact Mopar directly for help. I advised them that wasn't my job it was theirs' .

The service electronic brake light freq comes on. Dealer said it brake "module" needed changing and did. they also charged me $800 for it. Vehicle is still making the claim that the elctronic braking system still needs servicing almost imediately after repair.

frequently when shifting from D to R or any combination, all selections light up followed a loud bang from rearend. sometimes it correctes itself, other times engine must be shut down. dealer has diagnosed problem. Its a short in transmision wiring harness as they performed a rigorous, multipoint "wiggle test". its been in shop 4+ times to no avail.

ABS and HCU Warning lights come on and off. Looking around the internet this is a huge Problem. Took it to a local Ram dealer today and was told its a $1600.00 out of pocket cost seeing the truck is just out of warranty (of course) with 37,000 miles on it. Driving with the cruise control on it throws the warning lights on and off and cruise stops working. It seems the brakes are weak too. The dealer also informed us today they could not even get the parts to fix the problem until at least August! We also had to pile another $1500.00 in it a few months ago because the 4wd did not work either.

Frontal collision at 45 mph, totaled truck but airbags did not deploy. The insurance company sent the truck to the auction. My safety was at risk. Not that I am aware of, the insurance company has photos. Inspected by police and insurance adjuster. No symptoms of anything wrong with the vehicle.

The contact owns a 2018 Ram 3500. The contact stated while driving approximately 25 MPH, the "Check Brake System" and ABS warning lights were illuminated. The contact stated that the failure reoccurred intermittently while driving at various speeds. The vehicle was taken to a local dealer, where it was diagnosed that the Hydraulic Control Unit (HCU) needed to be replaced; however, the parts were on back order. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 57,000.

abs trac control going crazy dealer repaired under warranty about 15k drove approx 2k and same issue no longer under warranty tried to buy parts none available. truck doesn't start correctly when the lights are on and when driving there is a dinging as lights flash on and off.