2021 Ram 1500 electrical problems

Filed Oct 29, 2026 · Electrical, Fuel system · MD

A check engine light issue fuel filler neck replace, eism leak detection pump and fuel line bundle

Filed Oct 19, 2026 · Electrical, Visibility · PA

Original incident occurred in March 2026. While traveling at highway speeds my 2021 Ram 1500 lost all power and engine shutoff. I was able to get the truck to the side of the interstate due to it's momentum. Once I come to a stop, the e-brake is automatically applied and the vehicle will not restart or respond to any inputs from the keyfob. Vehicle is towed to nearest dealer, am told that the issue is related to an open recall that they have fixed and is now operating as normal. Less than one week later, the exact same thing occurs again, once again while traveling at highway speeds. Is towed into another dealer for service, and it is identified that the RF Module/Hub will need replaced due to a water leak. Repair is completed and vehicle returns to normal operation. 10/16/26 I attempt to start the vehicle with no success. After evaluating for a dead battery the vehicle is once again towed to a dealer (the same one that serviced it the first time). It is again identified that the RF Module/Hub will need replaced again due to a water leak around the back glass. I point out the Warranty Bulletin D-23-17 that would cover my vehicle and pertains to back glass water leaks. Am told by the dealer and Ram customer care that it does not in fact apply to my vehicle based on manufacturing date, despite it directly conflicting with the dates reflected on the notice. The TSB and the Warranty Bulletin appear to have conflicting dates for manufacture on them. This is incredibly deceptive behavior by Ram and should be looked into further. I have identified at least 8 previous complaints submitted to the federal safety agency pertaining to the water leak/RF Module issue within the last 18 months along with acknowledgement from multiple service advisors at the dealerships that it is a known issue, yet no recall has been issued for it. Due to the potential and documented history of this leading to sudden power loss, it is merely a matter of time before this results in severe injury or loss of life.

Filed Sep 16, 2026 · Electrical · WI

I am writing to express my concern about vehicle warranty coverage being provided by RAM (Stellantis NA) on their vehicles. I have a 2021 Ram 1500 which has a motor generator unit (MGU) which has failed due to a defect with the bearings. This has been diagnosed by the dealership and identified as covered under the emissions warranty. This diagnosis was made by Kolosso Ram in Appleton, Wisconsin in June of 2026. At this time I was advised that it could be a 6 to 8 month wait for parts because of a parts shortage due to the demand for the replacement part. My vehicle has been out of service since April while I maintain loan payments, depreciation of value, insurance and have no vehicle for transportation. A call to Ram was unsuccessful on two occasions to obtain any kind of relief in form of loaner vehicle or faster procurement of the part. Ram continues to build vehicles with this MGU unit while customers are stuck with inoperable vehicles some of with are still under original warranty or covered by the emissions warranty. The failure of Ram to ensure that customers have working vehicles is causing undue stress both emotionally and financially. This is also a potential safety issue as failed parts could put operators in an unsafe position.

Filed Sep 2, 2026 · Electrical · 81,000 miles · FL

The contact owns a 2021 Ram 1500. The contact stated that while attempting to start the vehicle, the instrument panel lights illuminated but the vehicle failed to start. The battery was replaced but the failure persisted. The vehicle was towed to the local dealer, who diagnosed that the RF Hub had failed and needed to be replaced. The vehicle was not yet repaired. The failure mileage was 81,000.

Filed Aug 28, 2026 · Electrical, Visibility · NC

I purchased a new 2026 Ram 1500 Rebel Crew Cab 4x4 from the John Heister Dodge Ram dealership, in [XXX] on XXX. The following day, I day i was notified of an open safety recall (the federal safety agency 26V‑531) affecting the vehicle's rear visibility/backup camera system, which under certain conditions may fail to display the rearview image during a backing event. I later confirmed that this recall was posted on XXX -- four days before I purchased the vehicle. The dealer, John Heister Dodge Ram, did not disclose this open recall at any point during the sale, and the vehicle was sold to me with the defect unrepaired. This is a known safety-related defect, as new vehicles are required to have open recalls repaired before delivery. The recall remedy has not yet been performed on my vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 14, 2026 · Electrical, Visibility · CA

Multiple times this has happened when I engaged in reverse the screen will be blank and can't see anything. It will take a couple of times of driving,parking and turning on and off the truck before it turns back on. This is a major safety concern as i can not see anything as i reverse. This does not happen every time but does happen often. I haven't had it checked out professionally because it hasn't been permanent but I do have Multiple videos of the problem recurring that I can send.

Filed Aug 6, 2026 · Body, Electrical · TX

Rear window frame cracked at both corners- water leaks inside of vehicle during rain. This can affect electrical components that are at the rear cab inside the truck. I noticed this a month ago but dont know how long it has been there.

Filed Aug 5, 2026 · Electrical · NJ

Engine ticking and trunk lock latch not opening

Filed Jul 30, 2026 · Electrical, Steering · AL

RTSCM FAILED TO BE REPAIRED resulting in life long issue. Recall Y80 from December 2021 was performed and then erased from my vin history. 14a associated with same failing part was completed and issue never went away.

Filed Jul 28, 2026 · Electrical, Engine · CA

Recently this vehicle has triggered a check engine light. Upon further examination the code was related to an ignition #3. (CODES: P020C, PO1DO).