2018 Grand Design Momentum Problems
- Complaints
- 7filed with NHTSA
- Median mileage
- —no mileage reported
- Recalls
- 2campaigns on record
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
Sources: NHTSA records for the 2018 Grand Design Momentum (complaints, recalls, investigations). Report an error
NHTSA recorded 7 consumer complaints for the 2018 Grand Design Momentum. The part named most often is body and structure, with 6 complaints (86% of the total), followed by other or unknown (4) and suspension (3). NHTSA lists 2 recall campaigns and 1 technical service bulletin for this model year. Body and structure complaints overlap with 1 NHTSA investigation filed under the same part.
This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.
Which parts are reported most
Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.
- Body and structure6 86%
- Other or unknown4 57%
- Suspension3 43%
Example complaints
Body and structure: “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. …”
NHTSA complaint #11663155, filed 2025-05Other or unknown: “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 breaks/cracks in the structural frame. We filed and insurance claim and an adjuster came out and photo documented all the frame damages along with documenting the overall build construction of the frame. …”
NHTSA complaint #11573756, filed 2024-02Suspension: “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. …”
NHTSA complaint #11737865, filed 2026-05Latches, locks and linkages: “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! …”
NHTSA complaint #11654890, filed 2025-04Complaints by year filed
Fewer than 15 complaints, too few for a reliable trend.
Recalls and investigations
- 22V038000Jan 28, 2022Equipment › Appliance › RefrigeratorCovers: Grand Design Momentum 2013–2021, Solitude 2013–2021, Reflection 2013–2021
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…
- 21V393000May 26, 2021Equipment › Recreational vehicle/trailer › Lpg systemsCovers: Grand Design Momentum 2016–2021, Imagine 2016–2021, Transcend 2016–2021
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.
Recall details for the 2018 Grand Design Momentum → · Check a VIN at nhtsa.gov/recalls
NHTSA investigations
- PE24029Frame Flex on Grand Design Fifth Wheel Recreational TrailersOpen · Oct 9, 2024
Technical service bulletins
TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 1 on record; the latest 1 are shown.
- 10172587Apr 1, 2020Equipment. 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.
Other model years of the Grand Design Momentum
| Year | Complaints | Median mi | Recalls | Crash ★ | MPG | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|---|
| 2024 | 11 | 1,850 | 6 | — | — | — | Too new |
| 2023 | 25 | 12,000 | 9 | — | — | 56 · Typical | Too new |
| 2022 | 33 | 200 | 8 | — | — | 59 · Typical | Rising |
| 2021 | 58 | 11,500 | 4 | — | — | 43 · Typical | Rising |
| 2020 | 29 | 10,000 | 2 | — | — | 10 · Fewer | Rising |
| 2019 | 15 | 500 | 2 | — | — | — | Rising |
| 2018 | 7 | — | 2 | — | — | — | Not enough data |
| 2017 | 13 | 3,000 | 2 | — | — | — | Not enough data |
| 2016 | 10 | 2,200 | 4 | — | — | — | Not enough data |
| 2015 | 5 | — | 2 | — | — | — | Not enough data |
All Grand Design Momentum model years · Best and worst years by complaints
Frequently asked questions
How many NHTSA complaints does the 2018 Grand Design Momentum have?
NHTSA recorded 7 consumer complaints for the 2018 Grand Design Momentum as of Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
What part of the 2018 Grand Design Momentum is reported most often?
Body and structure is named most often, in 6 complaints (86% of the total), followed by other or unknown with 4.
Has the 2018 Grand Design Momentum been recalled?
NHTSA lists 2 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.
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.
Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.