2021 Grand Design Momentum suspension problems
17 owner complaints filed with NHTSA name the suspension on the 2021 Grand Design Momentum — 30% of all complaints for this model year.
What owners report
“The contact owns a 2021 Grand Design Momentum. The contact stated that while the trailer was parked, the contact became aware that the axle on the trailer had become inoperable. The contact stated that the axle springs had detached, and the I-beam frame of the trailer was bent. The trailer was…”
filed Aug 18, 2025
“I am experiencing symptoms, consistent with excessive frame movement and structural failure in my 42 foot fifth wheel toy hauler RV. We have been monitoring this for the time we have owned it just over six weeks and have noticed an increase and symptoms that research shows indicate there is a…”
filed Aug 13, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- U-bolt may become loose due to inadequate preload and preload losses, causing the axle to…Campaign 26V044000 · Jan 26, 2026
- U-bolts may have been improperly tightened, which can cause the axle to move out of…Campaign 23V490000 · Jul 17, 2023
Suspension problems in other Momentum years
| Year | Reports | Share |
|---|---|---|
| 2023 Momentum | 3 | 13% |
| 2022 Momentum | 12 | 39% |
| 2020 Momentum | 7 | 25% |
Other reported problem areas on the 2021 Grand Design Momentum
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.