2020 Grand Design Momentum Body and structure Problems
- Complaints
- 19about this part
- Share
- 66%of 29 total for the year
- Median mileage
- 5,500miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 19 complaints about the body and structure of the 2020 Grand Design Momentum, 66% of the 29 complaints for this model year. Where a mileage was given, the median is 5,500 miles.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Frame issues with the gooseneck area of the RV. We've got lots of movement with the RV in these areas where it connects with the towing vehicle. We have had lots of movement in the front nose area of the RV causing substantial movement evidenced by interior and exterior cracks and noises when pulling. We have taken the RV to a repair facility and the manufacturer has denied making repairs to make the RV safe.”
NHTSA complaint #11650645, filed 2025-03“I have had front flex on my grand design repaired twice already and it’s still has issues. They didn’t weld any of the aluminum back together they would only do the frame, my bedroom walls and cabinets wouldnt get fixed either because that’s cosmetic.”
NHTSA complaint #11569768, filed 2024-02“We noticed our pin box on our GD started moving when we hitch up. The wall inside the bedroom is showing wear from movement, the trim around the upper deck came apart multiple times, the flooring inside the bedroom had a hole in it from the bed gouging into it. When hitching up the wall is bulging out on driver side just off of the slide corner. Our slide stopped working and there are Gibs inside the wall of the slide that had sheared off rivets.”
NHTSA complaint #11577689, filed 2024-03“11/15/2023: Kitchen slide of the RV partially opened while traveling down the road. My husband does have video of this occurring as we have a camera system installed on our RV. 6/25/2024: Kitchen slide of RV raised up and landed on an island drawer pull while traveling down the road. The slide could not be lifted off of the drawer pull and we were forced to activate the slide and allow it to travel out, causing damage to the drawer pull and drawer rails.”
NHTSA complaint #11620697, filed 2024-10“Frame failure issues diagnosed on the camper in 2023. We were not apprised of how serious the frame failure was or provided photos of the issues, so we are not sure how extensive the issue was. Repairs were performed by a Grand Design dealer prior to the Technical Service Bulletin being released by Grand Design. The repairs being performed prior to the TSB leaves us somewhat skeptical that they were performed according to Grand Design engineer specifications. …”
NHTSA complaint #11624047, filed 2024-11Related service bulletins
- 11026622Nov 22, 2025Grand Design is addressing concerns of excessive frame flex or wall securement in the front upper deck area of a limited number of fifth-wheel units. This condition could…
Body and structure: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2024 | 3 | 27% |
| 2023 | 20 | 80% |
| 2022 | 28 | 85% |
| 2021 | 42 | 72% |
| 2020 | 19 | 66% |
| 2019 | 9 | 60% |
| 2018 | 6 | 86% |
| 2017 | 3 | 23% |
| 2016 | 5 | 50% |
| 2015 | 5 | 100% |
Other parts of the 2020 Grand Design Momentum
16 complaintsSuspension
8 complaintsLatches, locks and linkages
3 complaintsEquipment
2 complaintsBrakes
1 complaintsElectrical system
1 complaints
← All problems reported for the 2020 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