CarRecallWatchThe 2018 Grand Design Momentum has 2 safety recalls on file with NHTSA.
Owners have filed 7 complaints with NHTSA.
The most-reported problem area is Structure (6 reports).
2018 Grand Design Momentum recalls
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 2018 Grand Design Momentum problems
Problem areas named in the 7 complaints owners filed with NHTSA.
| Problem area | Reports |
|---|---|
| Structure | 6 |
| Unknown Or Other | 4 |
| Suspension | 3 |
| Latches/Locks/Linkages | 2 |
What owners report
On the driver side of the 2018 Momentum Toy Hauler cracked in two locations above the center leaf spring holder. This issue occurred on May 1, 2025. While pulling out of a shop after having the leaf spring holders replaced the axle traveled through a small depression on the ground causing the frame to flex and make a loud enough sound to be heard in the truck pulling the camper. While investigating the situation it was discovered that the frame cracked at the weld points of the gusset bracket that was attached to the frame. The owner of Hawkeye Diesel Repair and two mechanics were on-site during the issue. [XXX] , the mechanics, and the owner of the RV inspected the frame as soon as the
I am writing to formally report a series of serious structural concerns we are experiencing with our Grand Design Momentum 349M fifth wheel/toy hauler, which appear to be related to excessive frame flex/failure or upper deck instability. These issues began toward the end of last year and have progressively worsened, raising significant safety concerns for our family. The following symptoms have been observed: * Bay and Propane Doors Opening During Transit Both the bay door and propane doors on either side of the trailer have opened unexpectedly while towing on the highway, posing a major safety hazard. * Loud Cracking Sounds from Front Driverâs Side Wall We consistently hear loud crac
I started noticing rub marks on the interior walls next to the night stands after the last few uses, and they appear to be getting worse after each use. I was made aware of the deck/frame flex issues the some GD fifth wheels are having and was referred to TSB 24-001. My RV is experiencing the exact concern described in the TSB. I opened a case number with GD, and took the RV to an authorized repair center. The repair center took measurements and confirmed my deck flex concern with GD and recommended a complete replacement/repair of the structural material and hardware. GD denied the claim! They only authorized replacement of the Lag Screws only, with larger lag screws per the TSB. In re
Driver side rear leaf spring hanger broke while under tow.
Fifth wheel pin box busted loose weld failed trailer about came off the truck this trailer weighs 16,000 plus pounds it was very unsafe the manufacturer knows of this issue The RV started to rip itself apart leave spring shackles busted
2018 Grand Design Momentum questions
Does the 2018 Grand Design Momentum have any recalls?
Yes. NHTSA lists 2 safety recalls for the 2018 Grand Design Momentum: 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 2018 Grand Design Momentum?
Based on 7 owner complaints filed with NHTSA, the most-reported problem areas are Structure (6), Unknown Or Other (4), Suspension (3).
How do I check if a recall on my 2018 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.