2021 RAM 1500 Complaints

View complaints related to 2021 RAM 1500. The complaints found here are submitted by actual consumers with first hand experience. There are more than 650 complaints submitted for the 2021 RAM 1500. You can submit your own complaint to the NHTSA or call the Hotline, Monday-Friday 8am to 8pm at (888) 327-4236, TTY: (800) 424-9153.

  • 2021 RAM 1500
    - Haysville, KS

    Bad bearing noise coming from MGU, part is covered under warranty and was told I can keep driving it the way it is. Seems like a fire hazard or safety hazard to drive something that could potentially lock up on the road. 6 weeks + for the part.

    Source: NHTSA WEB SITE
  • 2021 RAM 1500
    - Ypsilanti , MI

    Traveling down the roadway at 45mph. It had been raining for a couple of days. Engine completely shuts down, almost like a stall. Had to quickly pull over. When vehicle came to a slow roll, shifter auto shifted into park and engaged parking brake while in traffic. Disengaged parking brake, and was able to start. Pulled into parking lot and truck immediately shut down again. Eventually would not restart. Called tow. Tow company couldn't disengage parking brake. Towed to dealership. They notified me that my truck with 68K miles had a failed seal on back power window which allowed water into the truck, seeping into the RF Hub Module causing the RF Module to fail. 8K miles out of factory warranty and they denied coverage three times. I have MaxCare 8yr/125k warranty and they denied as well citing water intrusion. This is a well documented problem with these trucks as MOPAR Warranty Bulletin XL1 was released extending the warranty for 8 years,150K miles. However, my VIN didn't qualify although it met all of the criteria. This is a serious and dangerous electrical problem that effects drivability as it caused my truck to shutdown in traffic

    Source: NHTSA WEB SITE
  • 2021 RAM 1500
    - Manlius, NY

    The first time, the vehicle was, in effect, "dead," as nothing worked. After 24 hours it started without any codes being present. The second time, the vehicle stopped, shut down and engaged the e-brake. Nothing was thereafter operational. Four days later, it started without any mechanical intervention The only thing I did was remove the battery connections and then reinstall them. Three to four hours later it started.

    Source: NHTSA WEB SITE
  • 2021 RAM 1500
    - Port Saint Lucie, FL

    The contact owns a 2021 Ram 1500. The contact stated while the vehicle was parked, while attempting to fasten the front passenger’s and driver’s side seat belts, the seat belts failed to retract. The vehicle was taken to a dealer and the contact was informed that VIN was not under recall, and no assistance could be provided with the diagnostic test. The vehicle was not repaired. The manufacturer was notified of the failure but offered no assistance. The manufacturer informed the contact that the VIN was not under recall. The approximate failure mileage was 80,000.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2021 RAM 1500
    - Sonoma , CA

    I've had 2 incidents so far. 1. I stopped at a 2 way stop and as I accelerated to drive across the intersection (a truck was coming at me on my right side) my truck hesitated and I had no power to continue to go forward. I stepped on the gas, it revved up and continue to cross the road. 2. I was driving around a roundabout and went to accelerate on the straight away and it had a hesitation, I lost power (control ). I pressed on the gas a couple of times and then it came back and I was accelerating fast onto the on ramp.

    Source: NHTSA WEB SITE
  • 2021 RAM 1500
    - Kennesaw, GA

    My vehicle is only 4 years old, and the torque generator has gone out in the vehicle. I haven't towed anything in my vehicle. It has 90,XXX miles on it. It has taken over two months for me to get the part in for the vehicle.

    Source: NHTSA WEB SITE
  • 2021 RAM 1500
    - Omaha, NE

    After idling for 30-45 minutes in a parking lot my radio suddenly turned off (black screen), the dash indicated that my 115V Outlet showed that it was on as the indication flickered continuously. A/C will not function, only hot air blows progressively worse while driving. Windows will not roll up or down anymore, clock on the dash no longer shows up, side mirrors will not close with the button, power steps will not deploy. The vehicle also states that the blind spot indicator is off. Doors will not lock either. I disconnected the battery for 15 minutes and made sure EVERY FUSE WAS SEATED PROPERLY (interior and engine bay) as they were almost ALL loose. Now I am attempting to let the truck sit disconnected for up to two hours with the doors open and will factory reset the radio after to get the 12” screen functioning if possible.

    Source: NHTSA WEB SITE
  • 2021 RAM 1500
    - Mount Plymouth, FL

    I am writing to formally report a serious safety concern involving my partner’s 2021 Dodge Ram Bighorn, which was involved in a collision on May 9, 2025. The vehicle was severely damaged and deemed a total loss, yet none of the airbags deployed at the time of the crash. This incident raises significant questions about the safety and reliability of the airbag system in this vehicle. Given the severity of the impact, it is our belief that the airbags should have deployed in accordance with the vehicle’s safety design. Thankfully, my partner survived, but had the circumstances been slightly different, the consequences could have been far more serious.

    Source: NHTSA WEB SITE
  • 2021 RAM 1500
    - Quantico, VA

    The contact owns a 2021 Ram 1500. The contact stated while driving 50 MPH, the vehicle stalled. The vehicle was restarted but stalled again. The vehicle was then towed to a dealer where it was diagnosed and determined that there was water leaking from the third brake light and had leaked onto the battery pack control module and RF hub, and the parts needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 46,259.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2021 RAM 1500
    - Kings Beach, CA

    I am reporting a recurring safety issue involving exhaust fumes entering the cabin of my 2021 Ram 1500 Big Horn, particularly during cold starts or remote starts while idling. Despite multiple attempts to have this issue repaired through authorized dealerships, the problem has not been resolved. On the first visit, dealership technicians discovered two cracked exhaust manifolds, which were replaced. On a second visit, they found and tightened bolts further. On the third visit, they claimed there was no longer a problem, but no physical diagnostic tests (such as pressure, bubble, or smoke testing) were conducted. Still concerned for my family’s safety, I paid for an independent diagnostic inspection. The certified mechanic confirmed an exhaust leak at the junction between the exhaust manifold and collector pipe, citing either improper installation or flawed sealing from previous repairs. The technician verified this using a stethoscope and noted a strong odor inside the cabin via the HVAC system. This issue poses a potential carbon monoxide exposure risk to occupants, especially during colder conditions when the vehicle is idling and windows are closed. RAM case management (case #92878431) has been involved, but there has been poor communication and no clear resolution. I am concerned this is a manufacturing or design defect and that it could affect other owners. I am requesting that NHTSA investigate this issue due to the serious health and safety risks associated with exhaust fume exposure.

    Source: NHTSA WEB SITE