2018 RAM 2500 Electrical System Problems

Got an ABS fault for a corrupt hydraulic brake unit. So I replaced the unit at the cost of $200.. once replaced I still had an ABS light, traction control light, Brake light. Reading the codes it would tell me that both rear wheel speed sensors failed to compare. Ultimately I got a check engine light for wheel speed sensor 1 failure. So when I rest the code it clears the lights and I lose the speedometer for 25 plus miles. Also renders the 4x4 feature useless on the truck. I took it to the dealership on 8/8/2024 and they attempted to do an update to the ABS module. After the update I lost the speedometer again. I was told that the ABS module will need replaced at the cost of $600 plus labor and program time.

Driving in normal conditions .. even leaving my driveway ABS light comes on and traction control light comes on. and flashes randomly. Sometimes in doesn't come on for a bit but then will flicker on and off.

The electronic braking system/abs light/traction control light constantly comes on and off every few seconds when driving. Having intermittent loss of anti lock braking system is a hazard.

C0020-01-ABS PUMP MOTOR CONTROL - GENERAL ELECTRICAL FAILURE

ABS braking Module and hydraulic control unit on this vehicle has been replaced under warrenty twice (in 2020 & 2022), vehicle now has 59K miles now and ABS has failed again, dash warnings are constant and cannot be turned off. Failed while driving from MO to FL last weekend

Abs light and traction control light continue to turn on and when they light up my cruise control stops working

ABS notification light and traction control light keep beeping.

2018 ram 2500, abs and traction control light came on and front driverside brake locked up cause me to lose control of the truck. Almost hit 2 other vehicles. Now there's a loud grinding noise and seems to be not drivable. Vehicle was towed to my local dealer this morning 7-29-24 (kendall jeep ram chrysler). Was told by a service advisor that I could possibly be a faulty abs module but they do not have any available diesel technicians available to diagnose at the moment. Might be serval days or weeks before they can troubleshoot.

Abs light and traction control light come on and off- sometimes stays on and sometimes fluctuates. Been a constant occurrence

The systems in question are the ABS and Traction Control Systems on my 2018 Ram 2500 6.7L 4x4 Heavy Duty. This vehicle has had issues from the beginning with these systems as the first repair took place at 10,640 miles at the dealership it was purchased from. This took care of the codes/lights for a short period and was covered under warranty but the same issue persisted not too long after mileage-wise. The next time this issue occurred was when the truck had 22,628 miles, the brake fluid was flushed in an attempt to correct the ABS light but was unsuccessful. The truck was then brought to another repair shop to correct the same issue again where the ABS Hydraulic Module, ABS Control Module, and the brake fluid were replaced at 23,702 miles at the sole cost of the owner. As of early July 2024, at 45,000 miles the lights...

Abs control module & HCU module not working properly. Ram brand knows about these problematic modules on the 2014-2018 rams trucks. Now, I can’t drive my truck since Ram fixes this issue.

ABS and Traction control warnings intermittently go off and sometimes stay on for a while. This causes the truck to not have abs and traction control. Had a bucking issues sliding down a boat ramp yesterday. Truck is under 40,000 miles. This is a well known issue for years now.

Anti lock brake module repetitively fails. First one replaced 7/2021 with 51,xxx miles. Second failed 7/2024 with 69,000 miles. Loses ABS system, cruise control, electronics affect electronic throttle and stabilitrack.

Service ABS and traction control warning keeps going off. Cruise control kicking off.

I have replaced the HPU 2x's and currently the ABS warning light comes on. I have a RAM case #86697757. This is going on for a year and the dealer says parts are unavailable for repair. The truck has 24,000 miles on it.

ABS lights flash on and off while driving constantly. Affects concentration and cruise control. Radio will randomly start pressing all over the screen changing settings and distracting the driver.

Abs system failed and had to brake hard causing the wheels to lock up and lose control of the truck ,lost speedometer, brake lights, 4x4,cc,trailer brakes

Several systems suddenly were disabled, ABS, Electronic Stability Control, Front & Rear Park sensors, Tire Monitor system as well as the cruise control that may not be considered safety. The truck only as 11K miles. I have not been able to reset the system and the noted systems are inactive. I will contact the dealership but am bracing for a less than supportive meeting. From what I've read this is a very common failure on this year and model truck

My 2018 Ram 2500 has 85,000 miles currently. At about 80,000 miles I got the ABS and Traction control warning lights along with dash messages to check the ABS amd electronic braking systems. I am a heavy equipment mechanic and thus checked the systems myself with a scan tool and other test equipment. I found that the ABS module has an internal electrical failure resulting in power not being supplied to the ABS pump/electric motor. I have verified that the pump works and has about a 48ohm resistance. If supplied with 12v and ground to the motor it will come on. Circuit testing from the electrical plug to the contacts for the motor one pin has contact and the other is an open circuit. I also have one seized plunger in the hydraulic control unit that is actuator by the motors eccentric lobe on the output shaft. After doing some...

July 11, 2024 Message alert appeared indash with instructions to service ABS system. This vehicle experienced the exact same issue in April of 2022 and was taken to the dealer(Patterson Dodge-Tyler,TX) for repair, where the ABS Module was replaced. The replacement was not covered by the warranty.

My ABS light sporadically comes on and off. Dealership says it is the HCU module. It was replaced under warranty in 2020 and now has failed again. Wanting to file report so it is noted to help with initiating a recall on this failing part. I have read that the ABS module has also had similars issues with no recall as of to date either.

ABS and ECS warning indicators are continually coming on and going off. I have read many complaints on Ram forums that are identical to mine.

The truck's warning lights indicate ABS module, HCU module, and cruise control failure. The trailer brake controller, ASB system, and cruise control does not function. The truck's warning lights and chime have been going on and off for over 2 years.

abs light and traction control light would come on intermittently while driving then stayed on causing cruise control to not work. been happening for over a year

ABS light and traction control light comes on – says service electrical break system and antilock brake system

ABS Hydraulic Control Unit intermittently malfunctioning while driving causing service ABS system warning to display and render ABS system along with Traction Control System and Stability Control inoperable. HCU electronic motor removed and internal inspection of brushes and motor components conducted. Inspection identified brushes sticking in guides causing intermittent contact with center shaft of motor. New HCU ordered 28 June 24.

Service ABS braking system keeps appearing intermittently along with traction control and ABS lights illuminating on instrument panel. NO RECALL for this problem has been issued and parts are expensive to replace. Please direct manufacturer to fix issue immediately. Thank you for your mission to ensure the safety of others!!

ABS Service light flashes on after rainy days and or going over a bumpy road.

ABS and Traction control light indicators on dash appeared intermittently. After diagnosing from the dealership, it is advised to changed the Antilock Brake System module. However, the dealership advised there is a block and that they must first change the Hydraulic control unit, although they say it is perfectly fine. While we have not had an accident (luckily) it appears there is an ongoing investigation and multiple lawsuits against Dodge/RAM/Chrysler for this systemic problem of faulty ABS on 2017-2018 Ram 2500/3500. My 2018 RAM 2500 only has 36,000 miles. This failure is premature and potentially very dangerous. The dealer could not advise whether my truck was safe to drive or not even if the indicator lights were off or on. I have not yet had the HCU replacement completed, however will have it completed next week. I am submitting this incident report as a pro-active report as this is a...

Purchased vehicle new. ABS and TC lights presented on dash intermittent. Cruise control inoperative when lights on. Had issue under warranty and had components replaced to resolve issue and now happening again. Afraid to have family in vehicle with inoperative safety systems.

Abs module/hcu are intermittently shutting off and on. Brakes work, but you loose your abs. The problem has not been fixed . The abs module is on back order everywhere. It’s a hard part to find new or used .

CONSTANT & iNTERMITTENT system notification (Dash lights and chime tones) of required ABS serving, Traction Control failure, and DISCONNECT of Speed Control system. The problem has been on going for past 15,000 miles. NOTE: Took vehicle to RAM Dealer in Kerrville Texas and they determined no problems despite dashboard messages and lights. Dealer states that they are NOT aware of ANY issues with ABS and Traction Control on any of the 2018 RAM 2500 vehicles.

ABS and traction control lights come on intermittently. Cruise control won’t work when this happens. Problem seems to be a wiring issue and mainly happens during wet conditions and then stops after engine compartment warms up. I’m guessing ABS brake’s won’t function when light is on.

THERE IS A PROBLEM WITH THE ABS MODULE AND HYDRAULIC CONTROL UNIT. THIS TURNS THE ABS AND TRACTION CONTROL OFF. THIS IS A KNOWN ISSUE WITH SEVERAL COMPLAITS.

Automatic electrical braking system failure while towing.

ABS MODULE HCU MODULE Has failed, cruise control doesn't work, Dinging is non stop, Everytime I hit a bump it goes on and off

The service abs and service electrical brake system flashes on and off, dings. Occurs at all speeds, in town driving seems to make it ding worse on and off on and off Some days it doesn’t hardly do it, some days it is non stop. This prohibits the use of cruise control also, with a faulty braking alert the cruise aUto disengages From looking at dodge forums this is a very common issue in 2018 2500 ram trucks. A friend of mine who has the same truck is currently also having the same issue. No one but dodge can read the code or make a repair or even get the parts. They are covering up the issue I believe. You can find tons of people complaining of this issue and dodge needs to issues a recall. [XXX] [XXX] 2018 Ram 2500 [XXX] 2018 Ram 2500 Both having same issue conway...

ABS, traction control, cruise control, 4WD works intermittently ABS and traction control warning flash, wile ABS light is on you can not use traction control ABS system does not engage and cruise control is inoperable. Seen by dealer (benson CDJR) in April and June of 2023 and parts to repair were NOT available. Being seen again as new part is currently available to be repaired 4/6/24. After 1 year of not being able to find a solution for the problem. I have slid on sharp turns, got stuck wile pulling camper due to no 4wd among other issues. Contacted RAM regarding replacement assistance and they denied due to after market warranty. I am still responsible for 250$ for a repair that should have been a recall for Sevier safety concerns by RAM

The ABS / HCU ELECTRICAL BRAKE SYSTEM HAS THE SENORS BLINGING AND WANT STOP. Done had this truck in the shop 4 times fir this same problem it quits and starts back but now its on all the time.

Service Electronic Braking System warning lights random comes on and off every time you drive it.

ABS and Traction light on dash. Chiming of alarm. This alarm turns off cruise control and feels like it applies the brakes at 70 mph. Lots of brake dust accumulating on my rims. It happens some days but not every day. Some days there is a constant alarm chime and cruise won't activate. On 10/24/23, parts weren't scheduled to be released until February 2024. Charged over $100 diagnostic fee for the ABS, traction control lights on the dash. By looking at other reports, this has been an issue for several years. They have known for over 2 years that there is an issue. Why is it taking so long to get a fix in place? ABS is a safety system. This should be a recall. The recall should cover replacing the brake pads and rotors also.

While driving, ABS system warning lights illuminated accompanied by intermittent alarm. ABS System Failure confirmed by selling dealer, further confirmed via Fiat Chrysler Automobile (FCA) TSB notice "C0020-01-ABS PUMP MOTOR CONTROL - GENERAL ELECTRICAL FAILURE." This TSB particularly confirms/advises both the HCU and the ABS be serviced / replaced. The original pump motor is no longer available and per dealer is being re-engineered due to defect. This failure is a significant risk to the vehicle operator, passengers, and the general public and should be remedied immediately at the manufacturer's expense via NHTSA / FCA initiated recall.

Service electronic braking system / ABS service antilock brake system. Both these lights come on and ding, half a second later they are off. This happens non stop, looks like everyone is having this problem. This should be a recall not a $1200 fix. I only have 58,252 miles on my truck. This problem for me has been going on and off for 2 months.

The ABS pump motor control circuit has an electrical failure. The truck's safety is at risk of incident without the help of the ABS system. The problem is persistent as the ABS warning lamp and Service Electronic Brake System message pops up every time the brake is applied. The dealership recommends the part be replaced.

The ABS control module is not working. This turns off the anti-lock brakes and I have nearly hit someone when the brakes locked and skid across the intersection. The consistency beeping and vehicle message block the information screen. I have been waiting for over a year for the parts to be replaced. It is a shame that new vehicles safety systems doesn't work. The part is 68347098AA the replacement 68347098AB or 68347098AC is not available.

Hitting bump or random moments (intermittent). The ABS module comes up with code C0020-01 for ABS Pump Module General Electrical Fault. Truck loses ABS, Traction Control, as well as Cruise Control. Vehicles Odo is 7284 miles.

ABS and Electronic braking system lights come on and off. No codes. Reading about it and there are thousands of cases across the US. Something has to be done. Definitely a safety issue.

Service electronic braking system Notification and ding won’t stop going off. Truck has less than 50k and through my research this is a common issue with this truck. I don’t want to drive it anymore fit safety reasons. Bought the truck 2 months ago and have had an issue since I purchased it

Intermittent alerts related to service ABS light on the dash along with Traction Control light. Seems to disable ABS when the fault light comes on, also disables cruise control during driving when the service alerts flash on the dash. Constant beeping of the alert is a major distraction. Truck has 26,000 miles in it. Dealership said ABS module and HCU need to be replaced but parts are on back order until August but are not positive when parts will be available. Why is this not a recall?

The contact owns a 2018 Ram 2500. The contact stated that while in reverse(R), and while driving at various speeds, the head unit became pixelated and would appear and disappear without warning. Additionally, on several occasions, while driving at various speeds the radio, A/C, and car phone were turned on and off inadvertently. The vehicle was taken to a dealer where it was diagnosed that the head unit needed to be replaced due to it separating. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 60, 000.