2021 Grand Design Momentum Electrical system Problems
- Complaints
- 1about this part
- Share
- 2%of 58 total for the year
- Median mileage
- 40,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the electrical system of the 2021 Grand Design Momentum, 2% of the 58 complaints for this model year. Where a mileage was given, the median is 40,000 miles.
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.
“The contact owns a 2021 Grand Design Recreational Momentum. The contact stated that while having maintenance work completed on the RV, the dealer removed the nose cap and noticed that the insulation and the mylar tarp near the rear of the RV was burned. The contact was informed that the wiring on the nose cap had been overheating and causing the burn. The dealer had reconnected the wiring but had not repaired the RV. The manufacturer was made aware of the failure. The failure mileage was 40,000.”
NHTSA complaint #11608146, filed 2024-08, 40,000 milesElectrical system: other model years
Other parts of the 2021 Grand Design Momentum
42 complaintsOther or unknown
27 complaintsSuspension
19 complaintsLatches, locks and linkages
9 complaintsEquipment
3 complaintsBrakes
2 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