2021 Ram 3500 Other or unknown Problems
- Complaints
- 9about this part
- Share
- 15%of 62 total for the year
- Median mileage
- 70miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 9 complaints about the other or unknown of the 2021 Ram 3500, 15% of the 62 complaints for this model year. Where a mileage was given, the median is 70 miles. 1 a fire, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“My brand new 2021 Ram 3500 limited longhorn, suddenly stopped running at around 70 miles. This happened on I-84 between caldwell, id and baker city, or on 19 jan 2021 around 9:00pm. Roadside failed twice at getting us towed to safety. The 1st towing company called to say he declined the service and was surprised that they booked him anyway. The 2nd one informed us they had to decline the service because roadside assistance would not pay a fair price. By then we, the truck, and our trailer waited on the interstate for 4 hours in pitch dark and very cold weather. …”
NHTSA complaint #11389489, filed 2021-01, 70 miles“I’ve replaced turbo twice, computer once, now I’ve been told by multiple dealerships that I need to replace the def system and or fuel pump I hadn’t even got a 100k on the truck yet. The last incident I was driving and it kept saying in so many miles it would only allow me to go 5 mph see dealership for service then the numbers kept changing from high to low I was able to make it over 200 miles to get the truck back to the dealership without any issues.”
NHTSA complaint #11492443, filed 2022-11“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. …”
NHTSA complaint #11700252, filed 2025-11“On 1 Jan 2022 after driving from Washougal WA to Vancouver WA, I noticed after stopping for food that my front driver-side tire was near completely flat. Upon checking the dash information screen and cycling to the tire pressure screen, it reflected that my front drivers side tire was at 15 PSI, while the other 5 tires (dually) were at the proper pressures. The problem is that the TPMS did not, nor continues to not display a low pressure warning AT ALL, despite the vehicle being aware of the low measured pressure. This vehicle is brand new, with less than 7000 miles on the odometer. …”
NHTSA complaint #11445820, filed 2022-01“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 complaint #11708936, filed 2026-01Related service bulletins
- 11035074Jul 6, 2026CORE – HEATER
- 11034376Jun 25, 2026Outlet - air conditioning & heater
- 11034375Jun 25, 2026Outlet - air conditioning & heater
- 11030269Mar 18, 2026Backup Camera Poor Image Quality Inspection
- 11025507Nov 6, 2025CORE - HEATER
- 11025506Nov 6, 2025CORE - HEATER
- 11019600Jun 11, 2025Warranty Newsletter – Volume 11, Issue 6
- 11019598Jun 11, 2025FCA Caribbean Warranty Newsletter – Volume 11, Issue 6
- 11018809May 28, 2025CORE - HEATER
- 11018649May 23, 2025Module, Urea Pump/Level: HD 6.7L (ETL/ETN/ETM) with Mil On P21C4-00 (Reductant Line Heater Relay Control Circuit High / U11C1-00 (Reductant Control Module Received Implausible…
Other or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 5 | 18% |
| 2025 | 6 | 14% |
| 2024 | 6 | 13% |
| 2022 | 16 | 8% |
| 2021 | 9 | 15% |
| 2020 | 6 | 5% |
| 2019 | 6 | 4% |
| 2018 | 40 | 5% |
| 2017 | 16 | 5% |
| 2016 | 16 | 12% |
| 2015 | 15 | 11% |
| 2014 | 18 | 9% |
| 2013 | 9 | 8% |
| 2007 | 3 | 50% |
Other parts of the 2021 Ram 3500
17 complaintsTransmission and drivetrain
11 complaintsEngine
10 complaintsWheels
7 complaintsBrakes
6 complaintsFuel system
5 complaintsBody and structure
5 complaintsBack-over prevention (rear camera)
3 complaintsEngine cooling
3 complaintsExterior lighting
3 complaintsTires
3 complaintsSuspension
2 complaints
← All problems reported for the 2021 Ram 3500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology