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2020 Grand Design Momentum problems: recalls, complaints and what to check

NHTSA has 2 recalls and 29 owner complaints on file for the 2020 Grand Design Momentum, including 1 fire. Here is what they are, what a technician checks for each kind of fault, and how to look one over before you buy it.

Structure, roof and leaks: 19 complaints

What a tech checks: Roof sealant, seams, window and slide seals, and the frame. Water intrusion shows up as delamination, soft floors and stained ceilings months after the leak started. Before you buy: Press the sidewalls and walk the floor; look at every seam and seal.

Roof, leaks and body lessons · Seals and leaks guide

Other: 18 complaints

Axles, brakes, suspension and hitch: 9 complaints

What a tech checks: Bearings, brake magnets, worn shackle bolts and bent axles. A trailer that wears tires on the inside edge or pulls to one side usually has an axle or suspension problem. Before you buy: Bolts tight, springs not flat, brakes apply with the breakaway pin pulled.

Chassis and towing lessons · Trailer guide

Refrigerators: 1 recall

Recall 22V038000 (28/01/2022): EQUIPMENT:APPLIANCE:REFRIGERATOR

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.

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.

What a tech checks: On absorption fridges the big failure is the cooling unit leaking ammonia (yellow residue, a sharp smell) and boards or igniters on the gas side. Compressor fridges fail on the 12 V supply more than the compressor. Before you buy: Look at the back through the outside vent for yellow powder; run it on both power sources.

Refrigerator lessons · Refrigerator 3D lab

LP gas and gas appliances: 1 recall

Recall 21V393000 (26/05/2021): EQUIPMENT:RECREATIONAL VEHICLE/TRAILER:LPG SYSTEMS

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.

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.

What a tech checks: Regulator, lines and fittings, then the appliances: furnace, water heater, range. A proper pressure-drop leak test is the first thing a tech does on an LP complaint. Before you buy: Smell for gas with the tank open; have a shop do the leak test.

LP and furnace lessons · Furnace guide · Furnace 3D lab · Water heater 3D lab

Doors, windows, steps and lights: 3 complaints

What a tech checks: Mostly adjustments and wear: steps that stop halfway on a bad switch, doors out of alignment after a slide shifted, exterior lights with a corroded ground. Before you buy: Every door, lock, window and light.

Entry steps guide

12 volt and 120 volt electrical: 1 complaint

What a tech checks: Voltage drop, grounds, the converter and the transfer switch. Melted shore-cord plugs and bad grounds cause most of the electrical complaints techs actually see. Before you buy: Battery at rest, converter output on shore power, GFCI test, every outlet.

12 V electrical lessons · 120 V and generator lessons · Wiring diagrams

What owners reported to NHTSA

12/13/2024, STRUCTURE,LATCHES/LOCKS/LINKAGES: On walk through rear awning flew off in slight breeze, took 4 years to get repaired with covid and parts availability, could have just as easily came off on the road, had two 3/4'' screws holding it on and into skin, not frame. Upon looking at bedroom night tables gap at front cap found rub marks on wallcovering and sawdust from rubbing/flexing cabinets from perceived frame flex. back garage man door would open by it

12/12/2024, STRUCTURE,UNKNOWN OR OTHER: 2020 Grand Design 395M I am writing this with concerns over possible Frame or Structure issues in our unit, the following is a list of objects of concern. 1.Screws attaching underside of nose cap to upper deck breaking 2.Wall next to stairs entering the upper deck showing signs of movement and wearing on wallpaper. 3.Support uprights on left and right side between night stands and upper cabinets are moving and wea

12/02/2025, ELECTRICAL SYSTEM,EQUIPMENT: The contact owns a 2020 Grand Design Momentum RV. The contact stated that while the RV was parked, the contact heard an abnormally loud popping sound coming from behind the sleeping cabinets at the camping ground. The contact performed an inspection and noticed that the 110-volt electrical wires in the RV had shifted during travel and were touching the subframe of the RV. The contact noticed smoke coming from underne

11/08/2024, STRUCTURE,UNKNOWN OR OTHER: We have been living full time in our RV since Nov, 2022. We just brought our Grand Design Momentum M-381 in for the front cap replacement as there was frame flex over the past several months that we didn't realize was happening and there were cracks in the top of our cap. Let me explain, we saw evidence of "something" happening like the bedside tables rubbing against the wall and saw dust, the outside cap moldings/w

11/07/2024, STRUCTURE,UNKNOWN OR OTHER: Frame failure issues diagnosed on the camper in 2023. We were not apprised of how serious the frame failure was or provided photos of the issues, so we are not sure how extensive the issue was. Repairs were performed by a Grand Design dealer prior to the Technical Service Bulletin being released by Grand Design. The repairs being performed prior to the TSB leaves us somewhat skeptical that they were performed accordi

11/03/2025, STRUCTURE: The contact owns a 2020 Grand Design Momentum. The contact stated that upon hitching the trailer to the vehicle and driving, the entire frame of the trailer was flexing. The contact stated that the failure caused the laundry room door to fail to latch because the attached wall was damaged. The contact stated that the internal trim screws had become loosened, and the trims were detaching. The contact stated that the f

Looking at a 2020 Grand Design Momentum?

The Buyer's Check walks you through it on your phone: what to ask, the outside walk-around, water damage, every system on every power source, with the recalls above built in. You get a report that says what's a walk-away and what to negotiate on.

Start the Buyer's Check

Checked against NHTSA 2026-10-23. Recall repairs are free at an authorized dealer. Complaints are owner reports to NHTSA and are not verified.