2018 Grand Design Momentum problems, complaints & recalls
Most-reported problem areas: Suspension (2) · Structure:body (1)
🧭 Reliability snapshot
Compared against other Grand Design Momentum model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (2)
Equipment:appliance:refrigerator 2022-01-28 · campaign 22V038000 · 43,421 vehicles
Defect: 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 2021-05-26 · campaign 21V393000 · 55,508 vehicles
Defect: 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.
Service bulletins (1)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Equipment 2020-04-01 · CSP 910019 · Service Bulletin/Repair Instructions
customer satisfaction program released to have a protective heat shield installed behind convection microwave on units identified below to address concerns with excessive heat buildup.
What owners report
2026-05-14 · Suspension“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…”
2025-05-27 · Unknown Or Other“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 con…”
2025-04-16 · Unknown Or Other“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 num…”
2024-11-27 · Suspension“driver side rear leaf spring hanger broke while under tow. …”
2024-03-18 · Unknown Or Other“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…”
2024-02-24 · Unknown Or Other“structural frame failure. we found frame damage at a rest stop while traveling down the interstate. we observed side wall separations and multiple cracks in the welds around the pin box. the 5th wheel trailer was taken to a commercial truck frame repair shop in florida and after opening up the panel underneath the pin box we discovered multiple…”
2024-02-05 · Structure:body“we have frame failure on our trailer, we have not taken it apart yet to give all the details on the welds broken but metal is starting to come out from the fiberglass, and our cabinets inside came part. we contacted grand design and they stated as second owners there is no warranty, we contacted lippert they said to reach out to gd and our insuranc…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.