RoadVitals

2021 RAM 3500 Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
62
Latest Jul 1, 2026
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
15
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
4

What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2021 RAM 3500, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Reports by component

Ranked by how many owner reports name each component category

  • Electrical1721.0%
  • Engine1316.0%
  • Brakes78.6%
  • Other / unspecified78.6%
  • Driver assistance56.2%
  • Fuel system56.2%
  • Body & structure56.2%
  • Tires & wheels33.7%
  • Exterior lighting22.5%
  • Suspension22.5%
  • Steering11.2%
  • Visibility11.2%
  • Interior & seats11.2%
  • Seat belts11.2%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Each component in detail

What the reports in each category say, in the owners' own words

Electrical

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.

17
reports

From owner reports, verbatim

The contact owns a 2021 Ram 3500. The contact stated that while driving at various speeds, occasionally while activating the left turn signal to make a turn, the rear driver’s side turn signal failed to operate as intended. The message related to the brake light and turn signal was displayed on the instrument panel. In addition, the contact stated that while driving at various speeds, the rear driver’s side brake light failed to operate as intended while depressing the brake pedal. Additionally, while shifted into reverse(R), the reverse warning light fail to illuminate as intended. The vehicle was taken to a local dealer, where the failure was associated with NHTSA Campaign: 24V197000 (Electrical System, Exterior Lighting); however, the VIN was not included. The vehicle was not repaired due to the cost. The manufacturer was made aware of the failure. The failure mileage was approximately 6,000.

NHTSA ID 11747714 · filed Jul 1, 2026

While driving my truck I noticed my mpg gauge was showing 0 mpg. Then I realized my "miles to go" gauge was reading "low" even though I had plenty of fuel in the tank and my fuel gauge was showing 3/4 full. Even though I use my truck as a commercial vehicle, and drive coast to coast, I was luckily only a couple hours from home, so I kept driving to try to make it home. I did make it home, but during that time, my "check engine light came on along with my "low fuel warning" light. I also realized during that time that my odometer had stopped working. It wasn't showing any numbers at all. When I got home, I checked online to see if anyone else had heard of this problem, or how to fix it. That's when I realized just how common this problem is. Even though my truck is used in the US and my mileage is calculated in miles, the odometer is programmed to stop working at 1,000,000 kilometers, which is 621,369 miles. Who would know or expect this to happen? I called several independent garages, all of which refused to attempt to fix an odometer problem because of the legal implications. I then called several Ram dealers who all told me they had never heard of this and would have to call FCA for advice on how to fix it. After two days of waiting, my local dealer called me back and said they could give me an appt a week later to diagnose the problem with my truck. They said FCA knows about the problem, but to fix it, it has to have a new gauge cluster installed. Nobody I talked to was able to tell me if the truck was safe to drive or why Ram wasn't warning owners of this problem when their trucks reached such an odd number of miles. When they replace the odometer, it will start over again at 0 miles and a sticker in the door jamb stating that the odometer was replaced at 621,369 miles, as if anyone would think to look in the door jamb for this sticker. The reason so few other drivers are going through this problem is because they are buying an OBD reader and resetting it.

NHTSA ID 11700252 · filed Nov 19, 2025
All 17 reports naming electrical

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

13
reports

From owner reports, verbatim

The contact owns a 2021 Ram 3500 . The contact received notification of NHTSA Campaign Numbers: 25V720000 (Engine and Engine Cooling) and 25V552000 (Back Over Prevention) however, the part to do the recall repair was not yet available. The dealer was contacted. The vehicle was not diagnosed or repaired. The dealer confirmed that the remedy parts were not yet available and were on backordered. The manufacturer was made aware of the issue. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure.

NHTSA ID 11741292 · filed Jun 1, 2026

The contact owns a 2021 Ram 3500. The contact received notification of NHTSA Campaign Number: 25V552000 (Back Over Prevention) and 25V720000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The local dealer was contacted. 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.

NHTSA ID 11727064 · filed Mar 25, 2026
All 13 reports naming engine

Powertrain (other)

Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.

11
reports

From owner reports, verbatim

Vehicle died in a busy intersection coming off the freeway. Light flashed that indicated it was an issue with the electronic throttle control. The safety of myself and others was put at risk due to the posted speed of the road and multiple lanes from 4 directions. I had to remain in my vehicle to make sure I was not hit by another vehicle and due to the vehicle issue, I was impeding traffic. Lithia Dodge of Grants Pass, OR stated they could not make an appt for the vehicle to get looked at for 2 weeks out, scheduled 8/22/25. Dealership seems to think this is not an issue with safety and this issue can occur while the vehicle is in motion which is a huge safety issue. No warning lights flashed before the first one indicating the vehicle would shut down/lose all power.

NHTSA ID 11679340 · filed Aug 8, 2025

The contact owns a 2021 Ram 3500. The contact stated that after starting the vehicle, the accelerator pedal was depressed, but the vehicle failed to drive forward or to reverse. The RPM was raised high, and the check engine warning light was illuminated. The vehicle was taken to the dealer, where it was determined that the transmission needed to be replaced; however, the parts were on backorder. The failure recurred, and the vehicle was towed to the farm. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was opened. The failure mileage was approximately 64,000.

NHTSA ID 11644514 · filed Feb 24, 2025
All 11 reports naming powertrain (other)

Brakes

Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.

7
reports

From owner reports, verbatim

Brake system is not functioning as designed. Rear axle braking is not being fully applied and is most noticeable and concerning during heavy haul usage. Vehicle has to be operated carefully and with an alternate braking method utilized to obtain adequate braking. The problem can be and has been reproduced and verified by dealer but not in writing. Dealer is not wanting to fully diagnose and/or commit to finding/acknowledging a fault. Manufacturer has been notified in writing and unresponsive. There are no messages displayed/stored. Disproportionate brake wear between front and rear axle braking is observed.

NHTSA ID 11713842 · filed Jan 28, 2026

Both front ball joints wore out at 20,000 miles The 3rd break light leaks into the cab at 26,000 miles & won't be warrantied even though there's an active recall for our same truck, same part just different model

NHTSA ID 11708936 · filed Jan 5, 2026

Too few reports in this category for a page of its own — they appear in the full complaint list.

Other / unspecified

Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.

7
reports

From owner reports, verbatim

The contact owns a 2021 Ram 3500. While the contact's husband was driving at 55 MPH, the driver's rear wheel detached. The contact stated that the failure had occurred while a pickup box trailer was hitched to the vehicle. The vehicle was towed to an independent mechanic where it was determined that the wheel bolts had detached. The contact was informed that the rear wheel studs had sheared off into the wheel hub. The contact was informed that the rear wheel studs needed to be replaced. The vehicle was not repaired. The contact referenced NHTSA Campaign Number: 21V398000 (Wheels); however, the VIN was not included in the recall. The manufacturer was not made aware of the failure. The failure mileage was approximately 92,000.

NHTSA ID 11724142 · filed Mar 13, 2026

After a recall was "repaired" prior to our purchase, the right wheel came off on the interstate, after the lugs sheered off.

NHTSA ID 11575525 · filed Mar 5, 2024

Too few reports in this category for a page of its own — they appear in the full complaint list.

Driver assistance

Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.

5
reports

From owner reports, verbatim

The contact owns a 2021 Ram 3500 . The contact received notification of NHTSA Campaign Numbers: 25V720000 (Engine and Engine Cooling) and 25V552000 (Back Over Prevention) however, the part to do the recall repair was not yet available. The dealer was contacted. The vehicle was not diagnosed or repaired. The dealer confirmed that the remedy parts were not yet available and were on backordered. The manufacturer was made aware of the issue. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure.

NHTSA ID 11741292 · filed Jun 1, 2026

The contact owns a 2021 Ram 3500. The contact received notification of NHTSA Campaign Number: 25V552000 (Back Over Prevention) and 25V720000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The local dealer was contacted. 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.

NHTSA ID 11727064 · filed Mar 25, 2026

Too few reports in this category for a page of its own — they appear in the full complaint list.

Fuel system

Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.

5
reports

From owner reports, verbatim

The contact owns a 2021 RAM 3500. The contact stated that while driving at 40 mph, the vehicle stalled and could not be restarted. The vehicle was towed to a dealer, where it was diagnosed that the entire fuel system needed to be replaced due to the high-pressure fuel pump exploding after metal shavings were found throughout the entire system. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 77,000.

NHTSA ID 11735999 · filed May 6, 2026

I took the vehicle to the dealer for recall Manufacturer Recall Number13A NHTSA Recall Number23V-060 The dealer told me that they can only order one per week. I will have to wait over a year for the part to come in. This is a fire hazard and I have been advised to not park the vehicle in the garage or near other vehicles. Waiting over a year for a fire hazard repair is not acceptable.

NHTSA ID 11533101 · filed Jul 18, 2023

Too few reports in this category for a page of its own — they appear in the full complaint list.

Body & structure

Reports naming the vehicle structure, frame, body panels, doors, hood and trim.

5
reports

From owner reports, verbatim

The contact owns a 2021 Ram 3500. The contact received notification of NHTSA Campaign Numbers: 22V835000 (Power Train), 22V904000 (Structure), and 23V060000 (Electrical System); however, the parts to do the recall repairs were unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure. Parts distribution disconnect.

NHTSA ID 11550253 · filed Oct 16, 2023

The contact owns a 2021 Ram 3500. The contact received notification of NHTSA Campaign Numbers: 22V904000 (Structure) and 23V060000 (Electrical System) however, the parts to do the recall repairs were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repairs. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. Parts distribution disconnects.

NHTSA ID 11549843 · filed Oct 13, 2023

Too few reports in this category for a page of its own — they appear in the full complaint list.

Tires & wheels

Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.

3
reports

From owner reports, verbatim

I have had two tires separate in the past couple of months with less than 24000 miles and 5 years old. I filed a complaint with Nexen and they sent a partial payment for the first one but rejected the second claim that happened less than 500 miles of the first claim. They claim the tires are separated because of the low miles on the truck and it is not driven enough. Less than a year ago my brother had the same issue with the same tires and truck with similar mileage and was sent a check for 6 new tires. I have additional photos and photos of the other tire as well as emails with Nexen and XXX Sr. Quality Analyst © [XXX] [XXX] ® [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID 11705984 · filed Dec 18, 2025

Nexen Roadian HTX RH5 LT235 / 80 R 17. While driving down interstate and pulling a 21,000 lb GVWR fifth wheel trailer, the truck began vibrate. After stopping it appeared that the front passenger tire was out of round. This was confirmed after jacking up the vehicle. Suspect internal damage to the radials. The tire had a total of 16,600 miles on it. Tire had cold pressure of 80 psi and was just checked 4 days prior to the incident. Luckily, the issue was discovered prior to a catastrophic failure, so no damage or accident occured for this particular failure.

NHTSA ID 11668364 · filed Jun 21, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Exterior lighting

Reports naming headlights, tail lights, turn signals and other exterior lighting.

2
reports

From owner reports, verbatim

The contact owns a 2021 Ram 3500. The contact stated that while driving at various speeds, occasionally while activating the left turn signal to make a turn, the rear driver’s side turn signal failed to operate as intended. The message related to the brake light and turn signal was displayed on the instrument panel. In addition, the contact stated that while driving at various speeds, the rear driver’s side brake light failed to operate as intended while depressing the brake pedal. Additionally, while shifted into reverse(R), the reverse warning light fail to illuminate as intended. The vehicle was taken to a local dealer, where the failure was associated with NHTSA Campaign: 24V197000 (Electrical System, Exterior Lighting); however, the VIN was not included. The vehicle was not repaired due to the cost. The manufacturer was made aware of the failure. The failure mileage was approximately 6,000.

NHTSA ID 11747714 · filed Jul 1, 2026

The Auto lights sensor turns lights on/off at random during dark/night driving. The high beam auto sensor keeps the high beams on, so you do not notice losing driving lights. I found this out by accident, when I started losing my trailer lights at night. Quick fix, turn the light switch to on, instead of auto. NOTE - Cost me over 1000.00 to find that out. Re-wire the trailer, replace the 7-way plug.

NHTSA ID 11482571 · filed Sep 2, 2022

Too few reports in this category for a page of its own — they appear in the full complaint list.

Suspension

Reports naming suspension components — springs, struts, shocks, control arms and related hardware.

2
reports

From owner reports, verbatim

Both front ball joints wore out at 20,000 miles The 3rd break light leaks into the cab at 26,000 miles & won't be warrantied even though there's an active recall for our same truck, same part just different model

NHTSA ID 11708936 · filed Jan 5, 2026

Went in for warranty repair for a recall of the lug nuts and wheel stud to find the dealership claimed they did the recall but committed fraud and actually didn’t. Went to pick up vehicle and go directly to Discount Tire for a tire rotation to find the lug nut and wheel stud completely broken off and the wheel not attached to the truck at all. “Only one pothole away” from coming off I was told. The dealership Lawley Chrysler, Dodge, Jeep, Ram in Sierra Vista, AZ didn’t want to work with me any longer and told me to “go [XXX] yourself” when I attempted to work with them for repair. This issue is exact repair the warranty recall was to avoid and should have been fixed. This is major issue which could have caused fatalities had I not gone directly to attempt a tire rotation. Vehicle was towed to dealer as that is only dealer warranty would tow to in area. The other issue is the truck has a “puck” system that was cut wrong at factory and is unable to be replaced as factory and dealership refuse to help and submit a claim. The vehicle has issues and less than 12,000 miles on it before first repair attempt. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

NHTSA ID 11495039 · filed Nov 27, 2022

Too few reports in this category for a page of its own — they appear in the full complaint list.

Steering

Reports naming the steering system — racks, columns, power-steering assist and steering linkage.

1
report

From owner reports, verbatim

Power steering comes and goes. They can’t get a part for 45 days minimum. Pretty much give them 60,000 dollars and they could care less

NHTSA ID 11433376 · filed Sep 17, 2021

Too few reports in this category for a page of its own — they appear in the full complaint list.

Visibility

Reports naming windshields, glass, wipers, defrosters and mirrors.

1
report

From owner reports, verbatim

my truck has approx. 80,000 have been dealing with the dealer for at 3 months he says the heater core is clogged do to the type of antifreeze required to use. They flushed the system still the same blows luke warm air Will not keep windshields clear during bad weather They say heater core needs replaced and not covered under warranty my thoughts how can heater core be clogged on a truck less than 2 years old and 80,000 miles have made several complaints can get exact dates of first incident and have receipt on flushing No one else besides dealer has ever worked on truck

NHTSA ID 11500770 · filed Jan 9, 2023

Too few reports in this category for a page of its own — they appear in the full complaint list.

Interior & seats

Reports naming seats, latches, locks, linkages and interior fittings.

1
report

From owner reports, verbatim

Driver power seat started moving forward on its own until it was all the way forward, would not move backwards with the button. It pinned my legs to the dash, preventing me from reaching the throttle or brake pedal

NHTSA ID 11652811 · filed Apr 4, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Seat belts

Reports naming seat belts, buckles, retractors and pretensioners.

1
report

From owner reports, verbatim

The rear driver’s side and rear center seat belts no longer latch. When sliding the belt into the recepticle it fails to “click” or connect. The belt pulls right back out. It does not work at all, it is reproducible every time. The dealer will charge a lot of money to say that they ran diagnostics to tell me what is obvious, so I have not brought it in yet. This is a serious safety risk since the law requires passengers to wear seat belts for safety reasons and this basic safety equipment fails. The vehicle is less than 4 years old and the rear belts have not been used all the time as there were not always passengers. Also, there is no damage to them. I would like it fixed asap and believe the equipment is faulty since two of the three rear belts have failed.

NHTSA ID 11649373 · filed Mar 20, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .