2020 Ram PROMASTER problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
42 owner complaints analyzed
5 distinct recall campaigns
64,315 mi median reported failure mileage
Scope: 2020 model year. Data snapshot: . 15 complaints include usable failure mileage.
Most common problems
Power Train is the most frequently named component, appearing in 10 of 42 complaints (23.8%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Transmission and shifting | 8 | 19.0% |
| Steering behavior | 6 | 14.3% |
| Electrical and battery issues | 4 | 9.5% |
| Braking behavior | 2 | 4.8% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Power Train | 10 |
| Unknown Or Other | 9 |
| Electrical System | 8 |
| Back Over Prevention | 7 |
| Engine And Engine Cooling | 5 |
| Engine | 4 |
| Visibility/Wiper | 4 |
| Steering | 3 |
Power Train: 10; Unknown Or Other: 9; Electrical System: 8; Back Over Prevention: 7; Engine And Engine Cooling: 5; Engine: 4; Visibility/Wiper: 4; Steering: 3
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 6 |
| 25,000 to 49,999 | 1 |
| 50,000 to 74,999 | 4 |
| 75,000 to 99,999 | 1 |
| 100,000 to 149,999 | 3 |
| 150,000 and above | 0 |
Under 25,000: 6; 25,000 to 49,999: 1; 50,000 to 74,999: 4; 75,000 to 99,999: 1; 100,000 to 149,999: 3; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (6). 27 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2020 | 2 |
| 2021 | 5 |
| 2022 | 1 |
| 2023 | 4 |
| 2024 | 5 |
| 2025 | 9 |
| 2026 | 16 |
2020: 2; 2021: 5; 2022: 1; 2023: 4; 2024: 5; 2025: 9; 2026: 16
Pattern summary
Power Train leads the component reports. Transmission and shifting appears in 8 complaint narratives. Steering behavior appears in 6 complaint narratives. Electrical and battery issues appears in 4 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11587204 · 2024-05-06 (May 6, 2024)
The vehicle fails to go into gear when placed in DRIVE until the accelerator is pressed. It then shifts extremely hard into first gear and continues to shift with a hard thump into sequent gears until it reaches the higher gears. Extremely dangerous in city traffic. I managed to get the vehicle to a dealership for a warranty repair. They diagnosed the problem as a defective transmission. After five months of waiting, a new transmission was received and replaced. However, it didn't fix the problem. The dealership's fix was to order a seco…
Owner-reported narrative. Look up ODI 11587204 at NHTSA ↗
Owner report 11653161 · 2025-04-07 (April 7, 2025)
Transmission failure: Debris that caused the need for the 44A recall clogged the internal pump causing seizure. RAM service stated the need for transmission replacement, my cost.
Owner-reported narrative. Look up ODI 11653161 at NHTSA ↗
Owner report 11458154 · 2022-03-24 (March 24, 2022)
The contact owns a 2020 Ram Promaster. The contact stated that while driving at approximately 25 MPH another vehicle in the opposite lane had crashed head on into his vehicle. The contact stated that the air bag did not deploy upon impact , however after he hit his head on the steering wheel , the air bag deployed. The contact stated he and the other driver did sustain head injuries, and required medical attention. The contact stated that a police report was filed and the ambulance arrived to transport them to the hospital. The contact stated t…
Owner-reported narrative. 19,100 miles reported. Look up ODI 11458154 at NHTSA ↗
Owner report 11529507 · 2023-06-29 (June 29, 2023)
The transaxle downshifts whenever the accelerator pedal is released and the vehicle gains speed. This happens anytime, not when the driver wants to slow down. In the snow this has caused me to loose traction (unwanted engine breaking). There is no way to turn this off. I've spoken with other ProMaster owners and they all report the same issue. The transaxle should only offer engine breaking if the driver is depressing the brake pedal. Not whenever the vehicle accelerates. I believe this feature should only be active in "tow/haul" mode, and …
Owner-reported narrative. Look up ODI 11529507 at NHTSA ↗
Owner report 11673408 · 2025-07-14 (July 14, 2025)
The contact owns a 2020 Ram 1500 Promaster. The contact stated that while driving at various speeds, the transmission unexpectedly downshifted. No warning lights were illuminated. The vehicle then returned to normal functionality. The local dealer was not contacted. The contact attempted a hard reset on the vehicle. The contact removed the battery cable, waited for several minutes, and then reinstated the battery cables. The contact stated that the failure persisted. Upon investigation, the contact discovered that the previous owner had receive…
Owner-reported narrative. 64,315 miles reported. Look up ODI 11673408 at NHTSA ↗
Owner report 11717313 · 2026-02-11 (February 11, 2026)
The contact owns a 2020 Ram ProMaster 2500. The contact stated that while the vehicle was parked and turned off, the engine cooling fan continued running. The vehicle was towed to the dealer, where it was diagnosed and determined that the wiring harness, fuse box, and two modules had failed and needed to be replaced. The vehicle was repaired; however, the failure recurred. The contact discovered that the VIN was associated with NHTSA Campaign Numbers: 25V720000 (Engine and Engine Cooling) and 25V552000 (Back Over Prevention) while searching onl…
Owner-reported narrative. 137,000 miles reported. Look up ODI 11717313 at NHTSA ↗
Owner report 11514837 · 2023-03-31 (March 31, 2023)
The contact owns a 2020 Ram 3500. The contact stated that while driving about 70 mph there was a thumping noise originating from the rear passenger side. The vehicle was veered to the side of the road and inspected. On another occasion when the vehicle was reversing a crunching sound was heard emanating from the rear passenger side. The vehicle was towed to a dealer where the emergency brake was replaced. The manufacturer was notified of the failure. The failure mileage was 20,940.
Owner-reported narrative. 20,940 miles reported. Look up ODI 11514837 at NHTSA ↗