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2018 Grand Design MomentumProblems, recalls & complaints

NHTSA has logged 7 owner complaints about the 2018 Grand Design Momentum, most often about the structure. It is covered by 2 safety recalls, and for recall 22V-038 the manufacturer reports only 33% of affected cars repaired.

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CarFlaw IndexNot enough dataHigher is better (0–100)
Safety recalls2Lowest repair rate 33%Owner complaints70 with a crash, fire or injuryTop problem6Structure

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through May 14, 2026. Updated daily.

Complaints by system

Where the 2018 Grand Design Momentum has problems

7 complaints grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.
Complaints by system
SystemComplaintsCrash, fire or injury
Structure60
Suspension30
Latches/locks/linkages20

Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.

2 recalls

2018 Grand Design Momentum recalls and how many were fixed

Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.

41%repaired · 2023 Q1

Recreational vehicle/trailer: lpg systems

Recall 21V-393 · May 26, 2021 · 55,508 vehicles · 22,575 repaired

Risk. Excessive gas pressure and a larger than intended appliance flame can increase the risk of a fire.

Problem, fix and repair progress →

Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Grand Design.

Best & worst years

2018 vs. every other Momentum year

Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the Momentum median. How we score

'13'14'15'16'17'18'19'20'21'22'23'24'25'26
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated
1 investigation

NHTSA defect investigations

Federal investigations that included the 2018 Grand Design Momentum, and the recalls they led to.

  1. Frame Flex on Grand Design Fifth Wheel Recreational TrailersPE24029 · still open
    Open
In owners' words

What Momentum owners report

Recent structure complaints filed with NHTSA, shortened. Personal details are removed.

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…
Complaint 11737865 · May 14, 2026
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…
Complaint 11663155 · May 27, 2025
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…
Complaint 11654890 · Apr 16, 2025

Own a 2018 Momentum?

Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.