2021 Grand Design Momentum Problems, Complaints & Recalls
- Compared with other Momentum years
- Far more complaints than other years 1st of 13 for complaints
- Safety recalls
- 4 recalls: check your VIN
- NHTSA crash rating
- Not rated
Owners have filed 58 complaints with NHTSA about the 2021 Grand Design Momentum. That is the most of any Momentum model year in the database (13 years). The most reported problem area is structure (42 complaints, 72%), typically at around 8,000 miles. Complaints mention 1 crash. There are 4 safety recalls covering this model year. NHTSA has opened 1 defect investigation involving it.
- 58owner complaints
- 4safety recalls
- 1NHTSA investigations
- 1complaints mentioning a crash
Complaints are unverified owner reports and are not adjusted for sales volume.
Most common 2021 Grand Design Momentum problems
Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.
| Problem area | Complaints | Share | Median miles | Owners mention most | Typical repair cost |
|---|---|---|---|---|---|
| Structure | 42 | 72% | 8,000 | — | — |
| Unknown or Other | 27 | 47% | — | — | — |
| Suspension | 19 | 33% | 8,000 | — | — |
| Latches/locks/linkages | 9 | 16% | 10,500 | — | — |
| Equipment | 3 | 5% | — | — | — |
| Service Brakes | 2 | 3% | — | — | — |
| Electrical System | 1 | 2% | 40,000 | — | — |
| Exterior Lighting | 1 | 2% | — | — | — |
| Power Train | 1 | 2% | — | — | — |
One complaint can list several problem areas, so shares can add up to more than 100%.
Complaints by year received
2021 Grand Design Momentum recalls (4)
Tap a recall to see the problem, the risk and the fix.
Suspension:rear:springs:leaf spring assembly:u-bolt, leaf spring to axle; suspension:front:springs:leaf spring assembly:u-bolt, leaf spring to axle
Problem: Grand Design RV, LLC (Grand Design) is recalling certain 2021-2024 Momentum and 2022-2024 Solitude Fifth Wheel trailers. The U-bolt may become loose due to inadequate preload and preload losses, causing the axle to move out of position.
Risk: An axle that moves out of position can cause a loss of vehicle control and increase the risk of a crash.
Fix: Dealers will replace the axle attachment components, free of charge. Owner notification letters were mailed May 15, 2026. Owners may contact Grand Design customer service at 1-574-825-9679. Grand Design's number for this recall is 910054. This recall supersedes NHTSA Recalls 23V490 and 24V193.
Suspension:rear:springs:leaf spring assembly:u-bolt, leaf spring to axle; suspension:front:springs:leaf spring assembly:u-bolt, leaf spring to axle
Problem: Grand Design RV, LLC. (Grand Design) is recalling certain 2021-2024 Momentum and Solitude fifth wheels, equipped with certain CURT 7000 and 8000 lb axles. The U-bolts may have been improperly tightened, which can cause the axle to move out of position.
Risk: An axle that moves out of position can cause a loss of vehicle control and increase the risk of a crash.
Fix: Dealers will inspect and tighten the U-bolts, as necessary. Any damaged components will be replaced. Repairs will be performed free of charge. Owner notification letters were mailed August 16, 2023. Owners may contact Grand Design customer service at 1-574-825-9679. Grand Design's number for this recall is 910039.
Equipment:appliance:refrigerator
Problem: Grand Design RV, LLC (Grand Design) is recalling certain 2013-2021 Momentum, Solitude, and Reflection recreational vehicles. A 110-volt wire in the refrigerator cabinet may be improperly secured, which could result in the wire contacting the refrigerator cooling unit, causing an electrical arc.
Risk: An electrical arc increases the risk of a fire.
Fix: Dealers will inspect and replace any damaged wiring, and properly secure the wires, free of charge. Owner notification letters were mailed on February 21, 2022. Owners may contact Grand Design customer service at 1-574-825-9679. Grand Design's number for this recall is 910026.
Equipment:recreational vehicle/trailer:lpg systems
Problem: Grand Design RV, LLC (Grand Design) is recalling certain 2016-2021 Imagine, Transcend, and Momentum travel trailers. The LP regulator that controls the LP gas pressure may fail, allowing excessive gas pressure that causes the appliance flame to increase.
Risk: Excessive gas pressure and a larger than intended appliance flame can increase the risk of a fire.
Fix: Dealers will replace the LP regulator, free of charge. Owner notification letters were mailed June 24, 2021. Owners may contact Grand Design customer service at 1-574-825-9679. Grand Design's number for this recall is 910023.
To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.
NHTSA defect investigations
- Frame Flex on Grand Design Fifth Wheel Recreational Trailers (PE24029) — opened Oct 9, 2024, still open.
Recent owner reports
Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.
Leaf spring broke in half while traveling down the highway. Completely destroyed left rear tire by locking it up and causing it to drag for 1 mile before I noticed and could stop.
Upon returning from a recent trip I discovered that the passenger side rear leaf spring had snapped in to, near the rear leaf spring hanger. The equalizer also had cracked welds because of the incident. Thankfully the front of the leaf spring was still attached. This RV issue may be related to the…
We own a 2021 Grand Design Momentum 393g toy hauler that has severe frame flex and bolts in slide have started backing out. We noticed this when driving and the extreme pushing/chucking when accelerating or braking and also the visible failure on the unit. We have contacted Gran Design, the…
I am reporting a serious, progressive structural defect involving excessive frame flex and structural failure on a 2021 Grand Design Momentum 395MS fifth-wheel RV. This complaint directly aligns with the ongoing NHTSA investigation PE24-0209. The unit exhibits clear and worsening structural…
Frame cracked and suspension issues.
Other Grand Design Momentum years
← 2020 Momentum · 2022 Momentum →
| Year | Complaints | Recalls |
|---|---|---|
| 2025 Momentum | 2 | 2 |
| 2024 Momentum | 11 | 6 |
| 2023 Momentum | 25 | 9 |
| 2022 Momentum | 33 | 8 |
| 2021 | 58 | 4 |
| 2020 Momentum | 29 | 2 |
| 2019 Momentum | 15 | 2 |
| 2018 Momentum | 7 | 2 |
| 2017 Momentum | 13 | 2 |
| 2016 Momentum | 10 | 4 |
| 2015 Momentum | 5 | 2 |
| 2014 Momentum | 0 | 1 |
| 2013 Momentum | 0 | 1 |
See all Grand Design Momentum problems by year, every Grand Design model, or the VIN decoder.
Similar Grand Design models
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Frequently asked questions
What are the most common problems with the 2021 Grand Design Momentum?
Owners most often report structure, unknown or other, suspension problems. The top one, structure, accounts for 42 complaints.
Was there a recall on the 2021 Grand Design Momentum?
Yes, 4 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.
Was the 2021 Grand Design Momentum a good year?
Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other Momentum model years, the 2021 has far more complaints than most years. Always get a pre-purchase inspection and check the VIN for open recalls.