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Exterior lightingPart report

2021 Grand Design Momentum Exterior lighting Problems

Complaints
1about this part
Share
2%of 58 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the exterior lighting of the 2021 Grand Design Momentum, 2% of the 58 complaints for this model year.

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.

“We are victims of frame failure. First sign was a creaky floor in the bedroom. Screws worked their way out of the wood flooring and pushed up underneath the linoleum. The movement of the nose cap pushed screws out of the trim and seal piece on the underside of the front cap. We reseated screws, upgraded screws, resealed this at least 5 times and now use gorilla tape to avoid water intrusion. The underbelly has fallen down while traveling so we had to reinforce this ourselves. Our driver side bay door will fly open when traveling. …”

NHTSA complaint #11590944, filed 2024-05

Exterior lighting: other model years

YearComplaintsShare of year
202213%
202112%

Other parts of the 2021 Grand Design Momentum

Body and structure
42 complaints
Other or unknown
27 complaints
Suspension
19 complaints
Latches, locks and linkages
9 complaints
Equipment
3 complaints
Brakes
2 complaints
Electrical system
1 complaints
Transmission 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