2022 Ram 3500: check engine light

Filed Apr 18, 2026 · Transmission · WA

While travelling in Southern California, I came to a stop to enter I8 on ramp. When I tried to start down the on ramp the truck didn’t want to move and a check engine light came on. The truck went into limp mode so would travel slowly along. I called Mango Auto who could diagnose it the following morning. I did not make it to the shop before the transmission failed completely and the truck wouldn’t move leaving me in traffic in a dangerous spot. Eventually I was towed to the shop in Yuma AZ. They diagnosed it as a complete transmission failure requiring a $10,000 replacement. FCA has issued an extended warranty, but my mileage is 16700 miles over. FCA has a technical bulletin on the issue with the Austin transmission, but has not but should have issued a recall. This failure To issue a recall left me stuck in a dangerous situation and could have resulted in a crash.

Filed Mar 3, 2026 · Engine · 35,000 miles · PA

The contact owns a 2022 Ram 3500. The contact stated that while driving approximately 10-15 MPH, there was an abnormal rattling sound coming from the vehicle. The engine warning light was illuminated. The local dealer was contacted, and it was determined that the grid heater bolt had melted and fallen into the engine. The vehicle was repaired after two months due to the piston being on backorder. The manufacturer was contacted, but no additional assistance was provided. The approximate failure mileage was 35,000. The VIN was not available.

Filed Jan 12, 2026 · Acceleration, Brakes · PA

Every month I am receiving a check engine light for abs / traction control / failure. Dealer states HPU unit is bad, however I noticed all the fuses in the fuse box were loose. I pushed them in to reseat and the error cleared. This happens monthly. This last time happened during a snow storm and disabled abs.

Filed Jan 5, 2026 · Engine · 2,000 miles · SD

The contact owns a 2022 Ram 3500. The contact stated that while driving at various speeds, the vehicle hesitated to accelerate while the accelerator pedal was depressed. The check engine warning light was illuminated. The vehicle was taken to a local dealer, where it was diagnosed; however, the cause of the failure was not determined. In addition, the contact stated that the vehicle was taken to the same dealer approximately eight times, and a loaner vehicle was provided; however, after several unknown repairs, the failure reoccurred. The vehicle was previously repaired under warranty. The manufacturer was made aware of the failure. The failure mileage was approximately 2,000.

Filed Sep 16, 2025 · Transmission · IN

While driving on interstate leaving a construction zone started to accelerate to maybe 40mph and heard/felt a hard clang and lost all forward motion costed to side of interstate. Looked underneath truck, nothing visible broken or leaking. Restarted truck tried to move forward with no luck. Reverse worked, put back in drive loud noise again stomped on the accelerator and started moving forward very slow and difficult. Made it to an exit to look at things in a safer location than the busy interstate. Figured out that I had reverse and 5th gear so it was very hard/ slow to get moving. Check engine light on, gear ration incorrect, code P0731, Tran sensor failure, no 4x4 Transmission failure 1-4 gears not working

Filed Jun 19, 2025 · Fuel system · GA

My 2022 RAM 3500 has repeated failures of the diesel particulate filter (DPF) system. The truck enters limp mode unexpectedly, including while towing on the interstate, creating a serious safety hazard due to sudden loss of power. Since purchasing the vehicle, I have experienced ongoing issues with the emissions system, specifically related to the DPF. The check engine light comes on frequently, and diagnostic scans consistently show code P2459 (Diesel Particulate Filter Regeneration Frequency Too High). The DPF system has been replaced approximately five times by authorized RAM dealer. Despite these repairs, the same problem continues to occur. The truck will sometimes enter limp mode without warning, drastically reducing engine power. This has happened while towing a camper on the interstate, making it difficult or impossible to maintain safe highway speeds or accelerate when needed. This puts me, my passengers, and other motorists at risk of a crash, particularly when merging or changing lanes in fast-moving traffic. I have already pursued and settled a claim with Stellantis (RAM’s manufacturer) for $10k due to these issues. However, the problem persists, and the root cause has not been resolved. Accepting the settlement was recommended by legal counsel. The failure has occurred on multiple occasions (at least five separate incidents). The vehicle has undergone several service visits and emissions system replacements, but the safety issue continues. Current mileage 42,000. Dates of incidents from most recent: 6/25 (still in shop), 3/25, 9/24, 8/24,7/24,6/24,4/24,1/24,7/23,6/23,11/22. Documentation available upon request. Diesel particulate filter (DPF) system replaced approximately five times. I believe there is a defect in the design or operation of the emissions system that poses a safety risk. Loss of power while driving at highway speeds or towing creates a dangerous situation. I am reporting this in hopes that the federal safety agency will investigate this recurring issue.

Filed Apr 30, 2025 · Engine · 112,700 miles · AL

The contact owns a 2022 Ram 3500. The contact stated while driving 40-45 MPH and hauling a 14-ft loaded trailer, the engine made an abnormally loud knocking sound. The check engine warning light was illuminated. The contact was able to pull over to the side of the road. The vehicle failed to restart and was towed to the residence, where a mobile independent mechanic diagnosed that the grid heater nut had melted and entered cylinder #6. The vehicle was then towed to the dealer, where it was diagnosed that the grid heater nut failure had caused catastrophic failure of the pistons, turbo charger, and engine. The dealer determined that the engine assembly needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the repair could not be covered under warranty due to the mileage on the vehicle. The failure mileage was approximately 112,700.

Filed Sep 16, 2024 · Driver assistance, Transmission · CO

While driving around 20 mph, suddenly heard a clunk, then several dashboard warning lights came on. Truck suddenly had no torque- would only move forward if the engine was revved at much more than normal amount. Nearly complete loss of ability to accelerate from a stop/low speeds. Took to an independent service center who ran the ODB codes, showing the now well-known issue of "transmission failure gears 1-4" Warning lamps include the lane sense and check engine lights, and a message on the dash that reads ACC not available, Automatic high beams not available. Prior to this, no problems with the truck at all. I am trying to arrange getting it towed to a dealership.

Filed May 1, 2024 · Transmission · MI

Transmission went out. Lost 1-4th gear. It was the K1 snap ring in the transmission. Lost power going up a mountain in a National Park exhaust brake either to slow vehicle. Check engine light came on

Filed Apr 16, 2024 · Transmission · CA

My trucks transmission experienced a complete failure, it is currently at the dealership awaiting parts and repair The failure renders the truck without any forward power almost immediately with only reverse left functioning, we were fortunate that it broke down in a residential neighborhood and not the freeway. The truck was towed to the local dealership, they tore down the transmission and confirmed a K1 snap ring failure and that it would be covered under wtty. I got a malfunction indicator light a few days prior then a message on the dash "4 wheel drive system temporarily unavailable" about 10 miles before complete failure. CSN 71A appears to have been issued and sent to some truck owners to advise snap ring replacement as a preventative measure, however my truck was not included in the CSN campaign, not sure why

Filed Apr 4, 2024 · Transmission · CA

February 19,2024. Towing a bumper pull toy hauler approximately 10,000 pounds, just merged onto a two lane highway when the check engine light came on and truck jerked a couple times, I pulled to side of highway where there is not much of a shoulder. I placed it in park, sat a few seconds then into drive when I noticed no forward motion in drive. I turned truck off a few minutes, restarted, check engine light still on, no movement in drive mode. I did have reverse functioning. This was very dangerous situation, high speed two lane highway, small shoulder, many large RVs and 18 wheeler trucks flying by. 5 weeks truck is at dealer, they say it’s done, they attempt to bring it to me at the shop, then tell me check engine light on, throwing multiple codes. They still have truck, tell me they will find out issue asap.

Filed Apr 3, 2024 · Transmission · 17,000 miles · NY

The contact owns a 2022 Ram 3500. The contact stated while driving 30 MPH and towing an RV, the vehicle inadvertently lost motive power. The contact was able to pull to the shoulder of the roadway, where the failure persisted, after which the contact became aware that the vehicle was only able to shift into reverse. The check engine warning light was illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the transmission. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired due to parts not being available. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the federal safety agency Hotline for assistance. The failure mileage was 17,000.