What breaks most · 2015 to 2025 model years
Grand Design Momentum problems by year
Owners have filed 203 safety complaints with NHTSA about the Grand Design Momentum across model years 2015 to 2025. Three years stand out: 2021 for body and structure complaints, 2022 for body and structure complaints and 2020 for body and structure complaints. The quietest years are 2015, 2018 and 2016.
- Years to check closely: 2021, 2022, 2020
- Fewest complaints: 2015, 2018, 2016
- Complaints on file
- 2032015 to 2025, all trims
- Worst year
- 202156 complaints
- Crashes reported
- 22 fires · 0 injuries · 0 deaths
- Typical failure mileage
- 5kMedian where owners gave mileage
- Recall campaigns
- 43Across the years shown
Complaints by model year
Raw filings with NHTSA, not adjusted for how many were sold.
| Model year | Complaints | Crashes | Recalls | Most-reported component |
|---|---|---|---|---|
| 5 | 0 | 2 | Body and structure (5) | |
| 10 | 0 | 4 | Body and structure (5) | |
| 13 | 0 | 2 | Brakes (7) | |
| 7 | 0 | 2 | Body and structure (6) | |
| 14 | 0 | 2 | Unknown or other (9) | |
| 28 | 0 | 2 | Body and structure (18) | |
| 56 | 1 | 4 | Body and structure (42) | |
| 33 | 0 | 8 | Body and structure (28) | |
| 24 | 0 | 9 | Body and structure (19) | |
| 11 | 1 | 6 | Wheels (3) | |
| 2 | 0 | 2 | Brakes (1) |
What fails on the 2021 Grand Design Momentum
| Component | Share of complaints | Filings | Crashes | Parts for this job |
|---|---|---|---|---|
| Body and structureDoors, latches and body hardware | 75% |
42 | 0 | Shop all body and structure parts, not filtered to this vehicle |
| Unknown or other | 48% |
27 | 1 | — |
| SuspensionStruts, springs and control arms | 30% |
17 | 0 | Shop all suspension parts, not filtered to this vehicle |
| Latches and locksDoor latches and actuators | 16% |
9 | 0 | Shop all latches and locks parts, not filtered to this vehicle |
| Equipment and infotainment | 5% |
3 | 0 | — |
| BrakesBrake pads, rotors and calipers | 4% |
2 | 0 | Shop all brakes parts, not filtered to this vehicle |
| Powertrain and transmissionTransmission parts | 2% |
1 | 0 | Shop all powertrain and transmission parts, not filtered to this vehicle |
| Exterior lightingHeadlights, tail lights and bulbs | 2% |
1 | 0 | Shop all exterior lighting parts, not filtered to this vehicle |
One complaint can name more than one component, so shares add to more than 100%. "Unknown or other" is NHTSA's uncategorized bucket and is shown but never ranked.
In owners' words
Complaint narratives as filed with NHTSA, trimmed for length.
-
excessive frame flex/failure, Interior cabinetry coming cracked and apart. Floor separating from side walls. Main door coming open during transit.
-
The issue with the frame having issues causing a safety concern and interior damages. When the frame over flexes it will stress other components, walls, trim, and cabinets.
-
Back door of RV came opened while driving down the road. The door is always locked (dead bolt included) and the entry-assist arm folded over the door during travel. Upon parking for the evening, it was noted that the back door of the RV had popped open during travel.
How to read this page
Every figure comes from the National Highway Traffic Safety Administration's public complaint database, which holds every safety-related defect complaint filed by owners since 1995. We refresh it monthly and count each complaint once per component it names. Data through September 6, 2026.
NHTSA only accepts safety-related complaints. Rattles, paint, infotainment bugs and other annoyances are under-reported here, so this page is a map of what fails in ways owners consider dangerous, not a full reliability score.
Counts are raw. Use the year-over-year shape and the component mix, not the absolute numbers. Where a component maps to parts we stock, the row links to that category filtered to the year you are viewing. Air bag and seat belt complaints link to the recall checker instead, because those repairs are almost always covered.
Common questions
Which Grand Design Momentum years have the most problems?
By NHTSA complaint volume, 2021, 2022, 2020 carry the most filings on the Grand Design Momentum. The 2021 alone has 56 complaints, led by body and structure.
What is the most common Grand Design Momentum problem?
On the 2021 model year, the most-reported component is body and structure with 42 complaints. The table above lists the top components for every year.
At what mileage do Grand Design Momentum problems start?
The median mileage at failure across all Grand Design Momentum complaints that include mileage is about 5,000 miles. Older model years skew higher; the per-year figure is in the "at a glance" card.
Are these complaints verified?
No. NHTSA publishes complaints as submitted and does not investigate individual filings. Patterns across hundreds of complaints are meaningful; a single one is not.