The output voltage to the Trailer Braking system is low, only 7.5 volts. Other owners have the same problem. From what I understand there is an issue with the computer that keeps the Original Equipment trailer brake controller from delivering full power at speeds below 30 MPH. This is a safety hazard in stop and go driving. There are many complaints about this same problem in the Ram Forumz. Ram should be able to do a software update to fix the problem. One of the posts in the forum stated that Ram has the software update available but will charge a lot of money for it. This is a safety issue and these trucks should be recalled to fix the problem.
2015 Ram 3500 brakes problems
24 complaints (18% of all complaints for this car). Typical mileage when it fails: 17,283. 1 crash reported.
- owner complaints
- 24
- of this car's complaints
- 18%
- typical mileage
- 17,283
- crashes
- 1
- recalls
- 0
Which part fails
Owners did not name a specific part.
At what mileage
Complaints by mileage at the time of the problem.
Ram 3500 brakes problems in other years
Specific symptoms reported on the 2015 Ram 3500 brakes
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
No recalls on record for this model year.
What 2015 Ram 3500 owners say
Most recent owner complaints, unedited.
humming from the hydroboost pump, actual issue is the high pressure steering line has a nylon tube inside the hose that breaks apart and moves throughout the system. Dodge had one revision of the hose on the early model years but this issue has gone unresolved. I am afraid if i cant get it fixed it may possibly cause the brakes or steering assistance to fail.
At about 3,000 miles I noticed a periodical head light flicker and intermittent radio issues. Shortly after that the truck has presented with periodical brake issues. My front brakes parodically drag and get hot. Typically on one front side or the other. However on [XXX] my wife and I took the truck out for a drive and both front brakes began dragging and heated up. I had to be towed 40+ miles back home. Two of my neighbors can verify I've had issues with the brakes on multiple occasions for several years now. I've had to limp the truck home on several occasions while in town and in Feb. 2025 it put my wife and I in what a consider a dangerous situation by stranding us on the side of the highway. I don't remember any warning lamps coming on but I did a scan after I got the truck back home. B170-15, B210A-16, B222C, B2861-15, P2509 & P2560 were present. I used my scanner to delete the codes and reset the EMC but am a bit hesitant to take the truck out on the road. Note: The truck has experienced a weird and harsh vibration on back of truck as well. I stop, shut engine off - do a walk around but haven't been able to pinpoint anything. Crank engine back up and problem has seemingly resolved itself. I think it's possibly a brake issue as well. At present this truck has less than 11,000 miles on it. Yes, LOL, less than 11,000 miles. Calipers and pads are in excellent functioning order. Fluid is easily pushed back into reservoir with no restrictions and no apparent degradation of flexible lines. I considered the brake fluid might have moisture built up in the system so I had a complete fluid replacement done but problem has persisted.I did read there's a recall on the the HCU/ABS unit and my truck seems to be in that category but haven't received anything from FCA. [XXX] Your attention and assistance would be greatly appreciated. Thank You. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
ABS and Traction control warning lights are on display. Cruise control and 4x4 will not engage due to this issue. Also causing malfunction while towing a trailer.
ABS Module / HCU (Hydraulic Control Unit Failure) causing abs MIL on. Fault code C0020
ABS Module failed and is not reading rear wheel speed. Shop isolated issue to ABS module, and hydraulic control unit. Four safety components are no longer working as a result: ABS braking, traction control, 4wd, and rear back up sensors. This appears to be a common issue with Rams HD trucks as the parts are on back order causing me to drive my vehicle with no safety features.
After I brought my truck in for recall Y26 they inspected the studs and said they were fine (not stretched which is what the recall is for). I took a trip and put 6,700 after the inspection and the dealer re-torqued the wheels. When I got back there seemed to be something wrong with the brakes and so I brought it back to the same dealer that inspected it before and verified the studs were not stretched, now found that the pads and rotors were damaged and the studs were studs now stretched. No problem before the recall but after the recall and new torque for the wheels the studs are stretched. Dodge said they will pay for the studs to be replaced but not the brakes. The brakes were fine before. If it were just the pads I would understand that this could be normal wear but the rotors being destroyed only on the wheels that now had stretched studs does not make any sense and given that it was inspected beforehand and only after the new torque did the studs stretch and damage the rotors it seems like they may not be fixing the issue that the recall was originally issued for, in fact, they may have made the problem worse. The representative from Dodge said they have not had any other complaints so the brake damage must not have been caused by the stretched studs.
The integrated trailer brake module fails with no warning. When replaced it fails again. This happens when towing and the driver has no warning of failure until the brakes are applied. In an emergency stop this has proven to be a risk to property and lives. This is a consistent problem with dodge ram truck from 2015 on. *tr*dt consumer stated internal trailer brake controller was replaced and vehicle has been repaired.
While driving on highway cruise control failed to work, brake light went on and steering wheel turned upside down.*dt *dt both jam nuts were found to be loose.
Tl* the contact owns a 2015 ram 3500. The contact received notification of the federal safety agency campaign numbers: 17v562000 (service brakes, hydraulic) and 17v821000 (power train); however, the parts to do the repairs were unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repairs. The dealer was not contacted. The manufacturer was made aware of the issue and was not able to confirm when the parts were to become available. The contact had not experienced a failure. Parts distribution disconnect.
Questions about the 2015 Ram 3500 brakes
Does the 2015 Ram 3500 have brakes problems?
Owners have filed 24 complaints about the brakes of the 2015 Ram 3500, 18% of all its complaints.
At what mileage do 2015 Ram 3500 brakes problems start?
The typical (median) mileage in owner complaints is 17,283 miles.
Was there a recall on the 2015 Ram 3500 brakes?
There is no recall for this problem on this model year.
What year does the Ram 3500 have bad brakes?
The Ram 3500 model years with the most brakes complaints are 2018 (668 complaints), 2017 (196 complaints) and 2015 (24 complaints).
Other 2015 Ram 3500 problems
Transmission 32Engine 31Steering 22Electrical 19Suspension 17Wheels 15Acceleration 6Fuel system 6Airbags 4Body 3Lights 3Tires 3Driver assistance 2Seat belts 1Seats 1Visibility 1
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