2024 RAM 3500

The contact owns a 2024 Ram 3500. The contact stated that while attempting to start the vehicle in colder weather, the message "Pre-heating Diesel" was displayed on the screen. No warning light was illuminated. Several local dealers were contacted; however, the vehicle was not diagnosed or repaired. There was no recall for the issue associated with the VIN. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 15,000.

Excessive Diesel Exhaust Regeneration. Vehicle in in regeneration about 72% of the time. Check engine light comes on about every 2 weeks with code P2459. The P2459 code indicates an issue with the diesel particulate filter (DPF) regeneration frequency in diesel vehicles. This code is triggered when the powertrain control module (PCM) detects that the DPF regeneration process has not occurred as expected. Have to take to dealership for a manual regeneration and to clear the code. Dealership says this is a known issue for Ram Diesel engines from 2018-2024. Dealership says Ram has yet to address the issue even though its been 7 years since the issue started in the 2018 model year. Been dealing with this for a year now.

The brakes do not apply until after the pedal reaches half of its travel distance and still not as good they should. Very soft pedal feeling and too long of pedal travel to apply brakes. Very unsafe! I have had it to the dealer 3 times for this condition since I had purchased it (New) on June 5, 2025. They bled the brakes and found a small omaunt of air in the system. This did not change the braking condition at all. They cannot seem to find the problem. Service advisor did tell me that recently another customer brought in his 2024 Ram heavy duty pickup with the same issue.

As I was exiting the highway with a loaded trailer carrying approximately 10,000 pounds, the ABS and brake warning lights illuminated on the dash, along with a “No Trailer Brakes” notification. When I applied the brakes to slow down, there was little to no braking response. Fortunately, I was able to safely pull off the road. The truck has now been at the dealership for two weeks, and the technicians have yet to identify a solution.

Every time I turn my left turn signal on my headlights high beams come on weather headlights are turned on or not even if I have my headlights on on low beam, it does not do it when I turn my right turn signal on. It does it whether I have my auto headlights on or off. I'm sure it's been happening longer than that that's just the first time I was informed by someone I was following on the highway

We bought our 2024 3500 Dodge RAM in Florida in late March. Last weekend the truck started to feel like it was jerking while we were pulling our 5th wheel. On Monday we schedule an appointment in Brockton Massachusetts at a dealership. We were told there need to be a system update and that it was all set. On Wednesday we started our 3 hour drive to Maine when suddenly while we were on the highway the truck began to overheat and revving loud only going 35mph. We pulled over into a parking lot and called RAM roadside assistance. We were told to let the truck cool down and try again. After being in a parking lot with our 4 kids and 2 dogs in 100 degree weather for 6 hours we attempted to start the truck. However every time we put it in drive the truck shut off. At this time we had to get it towed for $300, today the local RAM autoshop is saying they looked at the truck and transmission is gone. They are also saying they will not be able to look at the truck for a month. We travel full-time in our RV and now are stranded with our RV and no way to pull it anywhere.