2021 Ram Promaster Suspension Problems
- Complaints
- 3about this part
- Share
- 3%of 111 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the suspension of the 2021 Ram Promaster, 3% of the 111 complaints for this model year.
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.
“Vehicle bottomed out and lodged on concrete entering driveway. Thor Scope Ram Promaster 1500 Chassis sits low and Thor installed Cummins Onan generator and 2 Trojan batteries under the chassis, that sit 2 or more inches below the rear axle against the Cummins install guidelines. The generator needs 6 to 8 inches for ventilation according to manual and RV mechanics. …”
NHTSA complaint #11423695, filed 2021-07“While driving, the vehicle experienced a sudden and complete loss of motive power without warning. The driver coasted off the road into a swale and required a tow to an authorized RAM dealer, December 9 2025 to CDJR of Tampa Bay, Tampa FL. The dealer initially indicated the failure was covered under Recall 44A, then changed their position and characterized it as a powertrain warranty repair. Following that repair the vehicle was returned immediately in January 2026 when it would not engage reverse. …”
NHTSA complaint #11739413, filed 2026-05Related service bulletins
- 11023168Sep 12, 2025Shock And Strut Diagnosis And Replacement Guidelines Leaking, noisy, or weak shocks or struts.
- 11018676May 21, 2025"Shock And Strut Diagnosis And Replacement Guidelines Leaking, noisy, or weak shocks or struts. "
- 10244356Sep 20, 2023LIFTER, Hydraulic Roller Deactivating Please do not replace MDS lifters because the disconnecting pin is not lined up, this is normal and not a defect.
- 10218450Aug 25, 2021Transmission,Trans Oil Pump,Torque Converter, Flexplate, Rear Seal, Engine NOTE: FOR ALL PROMASTER (VF) 3.6L/62TE EQUIPPED VEHICLES: IF THE TRANSMISSION BRACKET TO THE…
- 10212445Jun 30, 2021Hub and bearing - wheel
- 10221349Jun 25, 2021Rear Shock Eye Can Detach From Shock Body This bulletin involves inspecting the Julian date on both the left and right rear shock absorbers and possibly replacing one or both…
- 10193949Apr 7, 2021Transmission,Trans Oil Pump,Torque Converter, Flexplate, Rear Seal, Engine NOTE: FOR ALL PROMASTER (VF) 3.6L/62TE EQUIPPED VEHICLES: IF THE TRANSMISSION BRACKET TO THE…
Suspension: other model years
Other parts of the 2021 Ram Promaster
24 complaintsOther or unknown
21 complaintsElectrical system
19 complaintsLane departure
14 complaintsTransmission and drivetrain
13 complaintsBrakes
8 complaintsEngine cooling
7 complaintsWheels
7 complaintsEngine
6 complaintsSeat belts
6 complaintsEquipment
5 complaintsFuel system
5 complaints
← All problems reported for the 2021 Ram Promaster
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