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They do have new parts that the serial numbers or part number ends in an a B. So whoever goes to get replacements, make sure that the part of serial number ends in a B
 
The issue is in the abs motor. There is a brush assembly inside the motor that starts to stick. When this happens, it doesn't allow the motor to calibrate (run) as it should. The newest replacements as of 2023 have the upgraded motor. This is supposed to fix this issue. I know because I have gone through this. If it was just the traction light, I would tell you it is in the Clock Spring at the steering wheel. I know. I had to do that also. I am on my second time of that issue now. At least the new version of this is out that fixes that issue. My truck has 77400 miles, I bought it new. I love the Cummins, but I am not at all impressed with what it sits in. Ram does not own up to these issues either. Two blown rear ends also. And I don't tow with this truck!!! My friggin 2005 1/2 ton chevy has 150k on it and is by far superior in the way of quality. David Cordell
 
2018 Ram 2500 6.7L diesel, Mega Cab 4x4 (Lone-Star) with 11,000 miles. The reason for the low mileage is I bought the truck in July of 2019. My ABS dash light and traction control light started coming on about two months ago, it is intermittent, sometimes it does not come on for several miles and sometimes it comes on as soon as I roll out my drive-way.

I bought an Autel MaxiCOM MK808 tablet to see what is going on with my truck. I had to buy the Chrysler 12+8 pin pig-tale cable in order to scan the system, the data link connector cable that comes with the tablet will not work with the truck. After hooking up the 12 + 8 pin connectors and running the scan, I did not get any DTCs, I even did a live scan driving around on the roads for a few miles and got nothing.

If anyone out there with same truck and same issues, please let me know what the fix is.

Ray
2018 Ram 2500 6.7L diesel, Mega Cab 4x4 (Lone-Star) with 11,000 miles. The reason for the low mileage is I bought the truck in July of 2019. My ABS dash light and traction control light started coming on about two months ago, it is intermittent, sometimes it does not come on for several miles and sometimes it comes on as soon as I roll out my drive-way.

I bought an Autel MaxiCOM MK808 tablet to see what is going on with my truck. I had to buy the Chrysler 12+8 pin pig-tale cable in order to scan the system, the data link connector cable that comes with the tablet will not work with the truck. After hooking up the 12 + 8 pin connectors and running the scan, I did not get any DTCs, I even did a live scan driving around on the roads for a few miles and got nothing.

If anyone out there with same truck and same issues, please let me know what the fix is.

Ray
****Your ABS Motor is what's causing the issue. There is a brush holder assembly that is defective. It causes the brush to stick and not make contact with the armature. Motor does not run during its many cycles and throws a light and dinger. It will keep trying, Sometimes it will free up and work for a little while, but the issue will get worse. Cruise Control will not work during this time either. Ram is aware of the issue but like with many other issues, they don't want to admit fault. I'm on my third rear-end and second Clock Spring issue. Hopefully the new version of the ABS Motor will resolve your issue. The clock spring has an upgrade also to them now. But only after I have spent over 900 replacing them.
David Cordell 11/24/24
 
2018 Ram 2500 6.7L diesel, Mega Cab 4x4 (Lone-Star) with 11,000 miles. The reason for the low mileage is I bought the truck in July of 2019. My ABS dash light and traction control light started coming on about two months ago, it is intermittent, sometimes it does not come on for several miles and sometimes it comes on as soon as I roll out my drive-way.

I bought an Autel MaxiCOM MK808 tablet to see what is going on with my truck. I had to buy the Chrysler 12+8 pin pig-tale cable in order to scan the system, the data link connector cable that comes with the tablet will not work with the truck. After hooking up the 12 + 8 pin connectors and running the scan, I did not get any DTCs, I even did a live scan driving around on the roads for a few miles and got nothing.

If anyone out there with same truck and same issues, please let me know what the fix is.

Ray
It looks like Stellantis is finally admitting fault and issued a recall...I am on my 2nd unit, first one went out at 35,000, 2nd one at 50,000...I put 28,000 more on it with the dinging...wasn't going to pay for another one, lol!!
 
Just had my abs traction control lights come on, crazy thing is that I had my hubs, bearings, calipers, rotors, and pad replaced in 4/24. I believe this same issue was fixed under warranty in 2019 or 2020. My truck doesn't even have 47,000 mile on it. Gonna be pissed if I have to pay anything for this.
 
2018 Ram 2500 6.7L diesel, Mega Cab 4x4 (Lone-Star) with 11,000 miles. The reason for the low mileage is I bought the truck in July of 2019. My ABS dash light and traction control light started coming on about two months ago, it is intermittent, sometimes it does not come on for several miles and sometimes it comes on as soon as I roll out my drive-way.

I bought an Autel MaxiCOM MK808 tablet to see what is going on with my truck. I had to buy the Chrysler 12+8 pin pig-tale cable in order to scan the system, the data link connector cable that comes with the tablet will not work with the truck. After hooking up the 12 + 8 pin connectors and running the scan, I did not get any DTCs, I even did a live scan driving around on the roads for a few miles and got nothing.

If anyone out there with same truck and same issues, please let me know what the fix is.

Ray
Clock Spring fixed mine. 2018 2500 4x4 HD, Crew Cab
 
I had to have my hydraulic control module replaced. This is a known defect and should have been a recall. Class actions have been filed in California and Texas.
I just got a letter about the recall for this problem. I had it fixed last spring at a dealership. I’m going to sign up for the reimbursement that they offer.
 
2018 Ram 2500 6.7L diesel, Mega Cab 4x4 (Lone-Star) with 11,000 miles. The reason for the low mileage is I bought the truck in July of 2019. My ABS dash light and traction control light started coming on about two months ago, it is intermittent, sometimes it does not come on for several miles and sometimes it comes on as soon as I roll out my drive-way.

I bought an Autel MaxiCOM MK808 tablet to see what is going on with my truck. I had to buy the Chrysler 12+8 pin pig-tale cable in order to scan the system, the data link connector cable that comes with the tablet will not work with the truck. After hooking up the 12 + 8 pin connectors and running the scan, I did not get any DTCs, I even did a live scan driving around on the roads for a few miles and got nothing.

If anyone out there with same truck and same issues, please let me know what the fix is.

Ray
I am having the same issues. No clue what the fix is but would sure like to know! Thanks, Ken
 
RAM Customer Care

In Re: 2018 RAM 2500 repeated ABS issues



Greetings:



On 8/26/2019, I bought a 2018 RAM 2500 Laramie Longhorn Crew Cab 4x4, VIN # 3C6-UR5GL5JG-329236. The truck was for my pleasure driving. I intended that to be the case in August, 2019, when my wife and I left Barnesville, Ga., for a trip a trip out west (Idaho, Wyoming, etc.). As we approached Chattanooga, Tn., a distance of about 140 miles, the “SERVICE ELECTRONIC BRAKES”, “SERVICE ANTILOCK BRAKES”, and accompanying lights, bell dings and loss of cruise set in. We put up with that crap on a relatively new truck all the way to Pinedale, Wy., where we were finally able to catch a dealership open. After analyzing, I was told that the truck would need a new wiring harness and it would be 4-5 days before one could be delivered. As we were on a schedule, I couldn’t wait and we put up with the problem for 3 weeks and until we returned home.

Upon my return, I carried the truck to Cronic Dodge where they fixed the issue (no new wiring harness) and I thought all was well. Fast forward to October, 2023. Several of my friends and I went to Wyoming on a trip. When we left to come home, here comes the same lights, bell dinging and all of the accompanying irritating problems. Once again, I carried the truck to Cronic and, once again, they eliminated the issues.

On August 28, 2025, I was preparing to relocate my son to Syracuse, N.Y. GUESS WHAT!!! The same crap starts all over again. Cronic was nice enough to analyze my truck the morning of the 29th and advised that, once again, I need an ABS monitor and motor and those parts were on backorder and had been for months. Once again, a friend and I are on a 15+ hour trip, one way, with the same BS that I have already put up with for a combined 10,000+ miles up to this point. We returned on 9/2/25, with the continuation of bells, lights, etc. and it continues today. RIDICULOUS!! Now I am told there is no telling when the necessary parts will be available and I am stuck with these issues until who knows when. Needless to say, the truck that I bought for pleasure driving has been anything but that for about 15% of the time on the road (12,000 miles out of 80,000 miles approximately). It continues today.

I decided along the way that there must be some way to stop that constant horrendous beeping and went to the dealership for silencing. “No can do” I was told due to the possible liability issue. It was then that my 40 plus years as a practicing attorney took over. Let me see...it may be a liability issue to turn off the beeping. WHAT ABOUT THE THOUSANDS OF VEHICLES ON THE ROAD WITH MALFUNCTIONING BRAKES AND NO WAY TO GET THEM FIXED??? This is the typical corporate thinking and procrastination that results in those gigantic products liability awards.

Oh, did I mention the fact that those brake service notices take over the panel display completely blocking the speedometer and/or whatever other vehicle information one is trying to observe.

Irritation, mad, fuming, anguish … the word descriptions go on and on as to the emotions caused by this continuing fiasco. I have been a loyal Dodge brand owner for many years now, currently owning two. To say I am disappointed in the brand is an understatement. And, it is not just me. Two of my friends who were on one of these trips listening to this beeping and taking turns driving with the attendant problems were in the market for a new truck. Both ruled Ram out and bought Chevrolet and GMC due to the continuation of this problem and the apparent lack of concern by corporate. Losing two units doesn’t hurt a large company like yours, but what if two friends of everyone who has a vehicle with this problem does the same thing? This will eventually reach a dollar figure that gets even your attention.

I have tried to portray my experience without the venomous feelings and anger that I really feel taking over so that this letter would be viewed as the unintelligible ravings of a maniac. This is a plea. Please do something to fix this problem and do it now!! Please do something to compensate your loyal brand base who have had to endure this problem, a problem that has turned operation of their vehicle into torture.

I look forward to the response (should there be one) of RAM CARES advising the immediate resolution of the issue and the compensation for the enduring of same.
 
This is getting to be like some Murphy's Law line, like leak proof seals will. We can add @ramcares won't. The settlement of the class action about this matter was delayed last year so that Ram could have enough parts to take care of the recall. Still no parts? I have a 2018 that has had the HCU replace once and am in line for the recall. I am lucky because it is not malfunctioning, but I know it could go off any day.
 
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