2020 RAM 3500 Complaints

View complaints related to 2020 RAM 3500. The complaints found here are submitted by actual consumers with first hand experience. There are more than 120 complaints submitted for the 2020 RAM 3500. 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.

  • 2020 RAM 3500
    - Amarillo, TX

    Check engine light turned on in my 2020 dodge ram 3500, I took the truck back to the dealership. According to them the Grid Heater Relay needs to be replaced & the truck could have caught on fire if we would have kept driving like that. I have done some research and saw that there has been a recall on that same part for the 2021-2023. Could it be possible the 2020 were defective also, this is a major safety concern and should be looked into. I also don’t believe the customer should be responsible for paying for this issue to be fixed when it was my family’s safety that was jeopardized.

    Source: NHTSA WEB SITE
  • 2020 RAM 3500
    - Winlock, WA

    On 12/4/23, at 6:37 am PST, we initiated remote start via the key fob. At 6:40 am pst, a flash and fire erupted from under the hood of the truck. We immediately worked to control the fire using extinguishers and garden hoses until the fire department arrived a few minutes later. They worked to put the fire out that engulfed the engine compartment and then worked to get the hood open to finish putting the fire out. The fire didn’t fully go out until the battery cables were cut.

    Source: NHTSA WEB SITE
  • 2020 RAM 3500
    - Eagle Mountain , UT

    As I was driving the vehicle caught fire and I lost brakes. The vehicle had to be put into a retention pond to stop it.

    Source: NHTSA WEB SITE
  • 2020 RAM 3500
    - HESPERIA, CA

    Brake caliper mounting bolt fell out 2 times on driver side now 1 time on passenger side front on both after applying new brakes torqued to specified rating both times bottom bolt falls out top gets loose needs some type of locking tab I applied locktite both time while traveling towing my 5th wheel multiple people are complaining on this issue on ram forum

    Source: NHTSA WEB SITE
  • 2020 RAM 3500
    - Natalia, TX

    The contact owns a 2020 Ram 3500. The contact received notification of NHTSA Campaign Number: 22V835000 (Power Train); however, the part to do the recall repair was not yet available. The local dealer was contacted several times. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2020 RAM 3500
    - Quincy , KY

    Collision avoidance light on, cruise control unavailable, ESC error active safety features inoperative. Dealer states out of warranty. 37,600 miles and dealer wants $140.00 just to diagnose. Average layman cannot diagnose vehicle because of dealer system lockouts. Was intermittent, now on permanently.

    Source: NHTSA WEB SITE
  • 2020 RAM 3500
    - Rudolph, OH

    While driving at 70 mph on I-75 July 1 2023, roads where dry, temp outside was 88 degrees, speed control set, my 2020 Ram 3500 diesel, 4X4 Mega cab pick-up began to shake violently, the steering wheel was trembling side to side ! I took the truck off cruise control and griped the steering wheel, traffic was heavy that day so it took about 1/4 mile to slow down and pull safely to the shoulder with the hazard lights on and the truck in park I got out and started looking at what was going on in the front of the truck! I didn't take long before I spotted a large egg shaped raised bump on the drivers side front tire! It was checked for air pressure before my trip and registered 80 PSI with a air gauge! I checked the passenger side tire and it was normal, ( No egg shape). I had the local tire shop remove the spare and swap it with the Drivers side lumpy tire. I had not even traveled 10 miles from the tire store when the steering wheel started to shake violently again, this time I took it right back to the tire store and thought that it might not have been balanced or threw a weight maybe, as the manager/ owner and I inspected the tire the drivers side was fine, we walked to the passenger side and we both saw a Hugh outward protruding bump on the center top of the tire running at an angle from front to back! He told me that it must be delaminating, that he couldn't be sure until he demounted it. I was out of spares, out of town and out of luck. I paid the man to mount 2 new Firestones and I would take it up with my dealer when they Opened on the following Monday! As I proceeded to Thayer Dodge, Chrysler, Jeep in Bowling Green Ohio, I felt the back of the passenger side of the truck begin to hop, the slower I drove the worse it became. Pulled into the dealer lot and left it running in park to cool the turbo down as I talked to the service manager, service manager asked to see the tires that where taken off, she saw the bubbles on the insides of both, told me to call NEXEM

    Source: NHTSA WEB SITE
  • 2020 RAM 3500
    - Frisco, TX

    ABS System Failure HCU/ABS Module need to be replaced. This does not only occur on 2017-2018 RAM trucks. Please expand the investigation to include at least 2020 as well. Parts have been discontinued and new ones are not available yet. RAM knows there is a problem. They need to recall this safety issue.

    Source: NHTSA WEB SITE
  • 2020 RAM 3500
    - Jefferson, OR

    While driving Down a paved roadway on 6/30/23 @ 5pm doing approximately 20 miles per hour the vehicle died and the dash lite up with every single message possible such as 4WD inactive, oil change due, fuel filter service required and etc. Attempted to restart the vehicle for about 25 minutes when another citizen noticed we were having issues with the vehicle so they stopped to assist us. The citizen towed my vehicle to location we were staying at for the weekend and upon arrival to the location I disconnected both battery terminals to allow the computer modules to drain/reset. After allowing the batteries to be disconnected for several hours I hooked them back up and tried starting the vehicle and was unsuccessful getting it to restart. I disconnected the batteries again for the night and returned the next morning to hook them up. after hooking the batteries back up, I was able to get the vehicle started and moved it around at the place we were staying at and allowed it remain running for about 20 minutes before I shut it off. Went and did other projects and about 5 hours later returned to the pickup to see to see if it would start since we were heading back the next morning and it started so I figured it would get us home on Sunday July 2nd. On July 2nd @ 11:30am started the pickup to leave and everything seemed normal. We drove about 5miles from the location we were staying at and were approaching an intersecting highway OR58. I proceeded out onto OR58 westbound and as we got about 1 mile down the road when the pickup died and every message was being displayed again. As we sat way off the shoulder of OR58 incident response pulled up behind us to make sure everything was ok. I told the incident responder that we were good and I was working on contacting RAM for a tow. About 15 minutes had passed and IR person walked away then the pickup started. I was able to drive the pickup about 2 more miles down the road when it died again and had to be towed.

    Source: NHTSA WEB SITE
  • 2020 RAM 3500
    - Summerfield, FL

    My check engine light went on, along with the DEF warning, early June 13th,2023. The DEF warning stated I had 150 miles to get the Track to a Dealer. After Dealer evaluation, I was told the truck had DEF contamination, from ,Diesel Fuel. I asked how this could happen? I was not given an explanation. To me this is a DEF Pump failure. The DEF Pump did not have enough PSI to inject DEF into the Diesel Fuel, so the Diesel Fuel back flowed into the DEF system. Additional facts, my Truck warranty expired 5/15/2023. My truck has less than 36,000 miles. I had the High Pressure Fuel pump, Recalled fixed in May 2023. I was told this repair did not lead to this issue. The Repair bill is over $3700 for this repair.

    Source: NHTSA WEB SITE