Reliability & 5-year cost of ownership — 2021 Grand Design Momentum
NHTSA data on file today
The 2021 Grand Design Momentum has 4 NHTSA recall campaigns and 58 owner complaints on file as of . Recall data is refreshed daily from NHTSA.
Recall campaigns on file
- NHTSA #26V044000 U-Bolt May Loosen and Shift Axle NHTSA notice
- NHTSA #23V490000 Improperly Tightened U-Bolt NHTSA notice
- NHTSA #22V038000 Unsecured Refrigerator Wire May Melt NHTSA notice
- NHTSA #21V393000 LP Gas Pressure Regulator May Fail NHTSA notice
Most-cited components in owner complaints
- Structure 42 complaints
- Unknown or Other 27 complaints
- Suspension 19 complaints
- Latches/Locks/Linkages 9 complaints
- Equipment 3 complaints
- Service Brakes 2 complaints
Of the 58 complaints on file, 1 reports a crash (owner-reported, not verified by NHTSA).
Below average
Estimated 5-year repair + maintenance cost: $4,500–$8,500AI estimate — not from NHTSA data
The 2021 Grand Design Momentum has significant suspension and structure issues, with recalls and numerous complaints related to these areas. Owners frequently report problems with U-bolts and axle alignment, and structural complaints also abound.
Most-common failures
| Part | Typical mileage (AI estimate) | Cost range (AI estimate) | Frequency |
|---|---|---|---|
| U-bolt assembly | 10,000–25,000 miles | $200–$500 | very common |
| Structure | 20,000–40,000 miles | $1,000–$3,000 | common |
| Refrigerator wiring | 15,000–30,000 miles | $150–$350 | occasional |
| LP regulator | 10,000–20,000 miles | $100–$300 | occasional |
AI estimate — not from NHTSA data: the mileage bands and repair-cost ranges above. Get a written repair quote before you budget.
Scheduled maintenance to budget
Routine items every owner should plan for.
- Change engine oil every 7,500 miles
- Inspect brake system annually
- Rotate tires every 10,000 miles
- Check battery every year
- Service air conditioning every 3 years
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Loosened suspension causing swaying
- Unusual noises from leaf springs
- Electrical arcing near refrigerator
- Excessive LP gas smell
- Difficulty in door latching
Generated by gpt-4o on from the NHTSA recall campaigns and owner-complaint counts on file for the 2021 Grand Design Momentum at the time. The rating is an AI assessment; cost and mileage figures are AI estimates, not NHTSA data.