Total Complaints
4 filings
RAM PROMASTER 1500 · model year
4 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2021RAMPROMASTER 1500 carries 4 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2021 PROMASTER 1500 is unknown or other with 2 filings, followed by equipment (1) and power train (1). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.
NHTSA currently has 1 investigation file overlapping the 2021 PROMASTER 1500, and 1 remain open. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
Total Complaints
4 filings
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| UNKNOWN OR OTHER | 2 |
| EQUIPMENT | 1 |
| POWER TRAIN | 1 |
This vehicle was transformed into a Solis Pocket 36A motorhome by Winnebago in 2022. This, as well as many others converted by Winnebago in 2023 abs 2024 as well, contains a propane tank, heater, and 2 burner stovetop. They used Teflon tape on propane connections. This, as reported by another owner, is a safety and health issue. They should have used the yellow Teflon for propane, not the white one used in water connection. Eventually, the white weaker tape will wear and cause gad leak, which is a fire danger. And can cause health issues. This was reported by several owners on the fb group: [XXX] Winnebago had obviously made this mistake for at least 3 years! They need to issue a safety recall! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The contact owns a 2021 Ram Promaster 1500. The contact received notification of NHTSA Campaign Number: 23V301000 (Power Train) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was contacted and confirmed that parts were not yet available. The manufacturer was contacted several times and were unable to confirm when parts would become available. The contact stated that the vehicle was taken to the dealer to have the recall repaired; however, the contact was informed that a replacement transmission was not available to repair the vehicle. The contact stated that sixteen days later, the contact was informed that the transmission was shipped to be rebuilt. The manufacturer was not made aware of the failure. The approximate failure mileage was 37,000. Parts distribution disconnect.
Mileage: 37,000
The contact owns a 2021 Ram Promaster 1500. The contact stated that while driving at an undisclosed speed, the solar panel fractured and detached from the vehicle. The failure occurred while the contact was on vacation and driving at night. The contact stated that the vehicle was converted into an RV that was manufactured by Thor Motor Coach. The RV was taken to an independent mechanic. The new solar panel was replaced, and the vehicle was repaired. The contact later researched and notice that the failure was like NHTSA Campaign Number: 23V759000 (Equipment). The manufacturer was not made aware of the failure. The failure mileage was approximately 15,000.
Mileage: 15,000
The rear backup camera does not work correctly. The picture is of the floor and not the obstacle directly behind the vehicle. Also, the grid lines that assist in parking no longer appear. Yes - this vehicle is available for inspection. It is a safety issue because I do not have a rear window and so I cannot see a person, vehicle or obstacle directly behind me when I am in reverse. I can potentially cause injury to myself or others when I am in reverse. The dealer has seen the problem but will only diagnose the problem for $150. The vehicle has not been inspected by the manufacturer, police, insurance or anyone else. There was no warning lamp, message or other symptom prior to the failure. The failure appeared right around 36,000 miles just as it was going out of the warranty period.
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.