CarRecallWatchThe 2021 Grand Design Momentum has 4 safety recalls on file with NHTSA.
Owners have filed 58 complaints with NHTSA, including 1 crash.
The most-reported problem area is Structure (42 reports).
2021 Grand Design Momentum recalls
Loose U-bolts can let trailer axle shift, risking crash
Certain fifth wheel trailers have U-bolts that attach the leaf springs to the axle, and these U-bolts may loosen because they lack adequate preload or lose preload over time.
Loose Axle U-Bolts Can Shift Axle, Risking Crash
Certain fifth wheel trailers have U-bolts that may have been improperly tightened.
Loose refrigerator wire can arc and cause fire
A 110-volt wire inside the refrigerator cabinet may not be properly secured.
LP Regulator May Fail, Causing Fire Risk
The LP gas regulator in certain travel trailers may fail, allowing excessive gas pressure.
Most common 2021 Grand Design Momentum problems
Problem areas named in the 58 complaints owners filed with NHTSA.
| Problem area | Reports |
|---|---|
| Structure | 42 |
| Unknown Or Other | 27 |
| Suspension | 21 |
| Latches/Locks/Linkages | 9 |
| Equipment | 3 |
| Service Brakes | 2 |
| Exterior Lighting | 1 |
| Electrical System | 1 |
| Power Train | 1 |
What owners report
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 widely documented frame flex issue. 1) The RV is at home in my storage shed. 2) Our safety and other motorists were put at risks because if the axle would have completely detached from the frame, it could have caused a catastrophic accident. 3) The broken leaf spring has been removed (picture of broken leaf spring, and equalizer attached). I plan to have a certified NRVIA inspector come i
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 manufacturer, for warranty repair and was able to go see the unit when they torn down to look at frame. The side walls were both broken and wall frame fell out when opened up. The unit is now at the manufacturer in Indiana for repair, my husband did not feel it was safe to tow so we requested manufacturer transport the unit. We were told by a Lippert Frame Tech the unit is not safe to use.
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 integrity failure, including: Slideouts and doors open during transport. Upper deck walls moving under load Lag bolts missing or backing out and pushing through flooring At least one critical structural bolt missing from factory installation Floor deformation and slope changes in the upper deck Slide-out malfunction due to frame distortion Loud popping and snapping noises while towing consistent with f
Frame cracked and suspension issues.
2021 Grand Design Momentum questions
Does the 2021 Grand Design Momentum have any recalls?
Yes. NHTSA lists 4 safety recalls for the 2021 Grand Design Momentum: Loose U-bolts can let trailer axle shift, risking crash; Loose Axle U-Bolts Can Shift Axle, Risking Crash; Loose refrigerator wire can arc and cause fire; LP Regulator May Fail, Causing Fire Risk. Recall repairs are normally free at an authorized dealer.
What are the most common problems with the 2021 Grand Design Momentum?
Based on 58 owner complaints filed with NHTSA, the most-reported problem areas are Structure (42), Unknown Or Other (27), Suspension (21).
How do I check if a recall on my 2021 Grand Design Momentum has been fixed?
Enter your 17-character VIN in our VIN recall check. It shows open recalls that have not been repaired on your specific vehicle. Recall repairs are normally free at an authorized dealer.