2021 Grand Design Momentum Equipment Problems
- Complaints
- 3about this part
- Share
- 5%of 58 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 equipment of the 2021 Grand Design Momentum, 5% of the 58 complaints for this model year. 2 recall campaigns on record are filed under a similar system.
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.
“I am reporting a serious, progressive structural defect involving excessive frame flex and structural failure on a 2021 Grand Design Momentum 395MS fifth-wheel RV. This complaint directly aligns with the ongoing NHTSA investigation PE24-0209. The unit exhibits clear and worsening structural integrity failure, including: Slideouts and doors open during transport. …”
NHTSA complaint #11749089, filed 2026-07“The contact owns a 2021 Grand Design Recreational Momentum. The contact stated that while hauling the RV and driving at undisclosed speeds, the rear side door unexpectedly opened and the slide-out extended outward. No warning light was illuminated. The trailer was taken to a local dealer and remained with the dealer for additional inspections. The RV was not repaired. The manufacturer was made aware of the failure. The failure mileage was unavailable.”
NHTSA complaint #11727885, filed 2026-03Related recalls
- 22V038000Jan 28, 2022Grand Design RV, LLC (Grand Design) is recalling certain 2013-2021 Momentum, Solitude, and Reflection recreational vehicles. A 110-volt wire in the…Covers: Grand Design Momentum 2013–2021, Solitude 2013–2021, Reflection 2013–2021
- 21V393000May 26, 2021Grand Design RV, LLC (Grand Design) is recalling certain 2016-2021 Imagine, Transcend, and Momentum travel trailers. The LP regulator that controls the LP gas…Covers: Grand Design Momentum 2016–2021, Imagine 2016–2021, Transcend 2016–2021
Equipment: other model years
Other parts of the 2021 Grand Design Momentum
42 complaintsOther or unknown
27 complaintsSuspension
19 complaintsLatches, locks and linkages
9 complaintsBrakes
2 complaintsElectrical system
1 complaintsExterior lighting
1 complaintsTransmission and drivetrain
1 complaints
← All problems reported for the 2021 Grand Design Momentum
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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