*I believe the frame to my Grand Design RV is broken/failing again and is available for inspection. *If the frame fails and breaks it will come detached from the tow vehicle possibly injuring or worse killing people. *The problem is visible to see as there is at least one broken weld and lag bolts/screws backing out that no longer hold the frame to the wall structure. *The vehicle was previously inspected by an insurance agent, dealership, and multiple Grand Design SRTs-mobile technicians when it failed before previous repairs. *There was sealant that was failing again so when I started to remove it to replaced, it I noticed some broken screw heads so I dug farther into it and found the broken weld and lag bolts loose/stripped. This was noticed during a routine sealant inspection.
The worst 2021 Grand Design Solitude problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Body24
- Locks6
- Suspension5
- Electrical2
- Brakes1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Body24
- Locks6
- Suspension5
- Electrical2
- Brakes1
Recalls 4
Equipment: recreational vehicle/trailer: materials: flooring
- What is wrong
- Grand Design RV, LLC (Grand Design) is recalling certain 2019-2024 Grand Design Solitude fifth wheel trailers. The step tread joints may be unsupported, causing the tread to break.
- Risk
- A broken step increases the risk of injury.
- Remedy
- Dealers will reinforce the current step tread with a metal bracket, free of charge. Owner notification letters were mailed May 22, 2025. Owners may contact Grand Design customer service at 1‑574‑825‑9679. Grand Design's number for this recall is 910048.
Recall number 25V061000 · Recall details
Suspension: rear: springs: leaf spring assembly: u-bolt, leaf spring to axle
- What is wrong
- Grand Design RV, LLC. (Grand Design) is recalling certain 2021-2024 Momentum and Solitude fifth wheels, equipped with certain CURT 7000 and 8000 lb axles. The U-bolts may have been improperly tightened, which can cause the axle to move out of position.
- Risk
- An axle that moves out of position can cause a loss of vehicle control and increase the risk of a crash.
- Remedy
- Dealers will inspect and tighten the U-bolts, as necessary. Any damaged components will be replaced. Repairs will be performed free of charge. Owner notification letters were mailed August 16, 2023. Owners may contact Grand Design customer service at 1‑574‑825‑9679. Grand Design's number for this recall is 910039.
Recall number 23V490000 · Recall details
Equipment: appliance: refrigerator
- What is wrong
- 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.
- Remedy
- 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.
Recall number 22V038000 · Recall details
Equipment: appliance: refrigerator
- What is wrong
- Grand Design RV, LLC (Grand Design) is recalling certain 2017-2021 Solitude recreational trailers. The liquid propane (LP) supply line that runs through the exterior lower refrigerator compartment may contact the burner tube of the refrigerator, possibly damaging the line and causing an LP gas leak.
- Risk
- An LP gas leak increases the risk of a fire.
- Remedy
- Grand Design will notify owners, and dealers will inspect the LP supply line for damage, replacing it as necessary. All lines in the vicinity of the burner tube will be wrapped in a thermal foil heat barrier material, then secured away from the burner tube of the refrigerator with additional P-clamps, free of charge. The recall began September 17, 2020. Owners may contact Grand Design customer service at 1‑574‑825‑9679. Grand Design's number for this recall is 910021.
Recall number 20V523000 · Recall details
See all 4 recalls for the 2021 Grand Design Solitude
Defect investigations
Frame Flex on Grand Design Fifth Wheel Recreational Trailers
The Office of Defects Investigation (ODI) has received twenty-three complaints alleging excessive frame flex on model year 2017-2023 Grand Design fifth wheel recreational trailers, models Momentum and Solitude. Twenty-two of the complaints allege that excessive frame flex resulted in a cargo or entry door opening while in transit, some with objects lost on roadways, while six complaints also state that slideouts extended out partially. ODI has been in contact with both Grand Design and Lippert, the frame manufacturer. Grand Design believes that some frame flex, generally considered to be vertical movement in the upper deck area of the fifth wheel, is normal. However, Grand Design has developed a technical service bulletin (TSB), to evaluate concerns of excessive frame flex, defined as vertical movement greater than 3/8 inch. Per Grand Design, the frame flex is only occurring in the upper deck area of the fifth wheel and is resulting in cosmetic defects such as moving sidewalls, damage to cabinets, binding doors, etc. However, Lippert believes that the effects of frame flex may also extend back to the front axle of the trailer.While Lippert provides frames for multiple trailer manufacturers, the majority of complaints are for these Grand Design products. Cargo and entry doors that open and slideouts that extend while in transit increase the risk of injury or a crash. ODI is opening this Preliminary Evaluation (PE) to evaluate the severity of the potential problem and to determine whether an unreasonable risk to motor vehicle safety exists. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to
PE24029
Technical service bulletins for the 2021 Grand Design Solitude 8
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Grand Design is addressing concerns of excessive frame flex or wall securement in the front upper deck...
- Lippert Components and Grand Design RV are launching a Customer Satisfaction Campaign to address frame web...
- TSB 24-001
- Broken Interior Step treads
- The rear upper deck on Solitude ST390RK models produced prior to June 6, 2022 may not be properly supported
- Gray Tank has an uncapped plumbing hole on top of tank on ST346FLS select units.
What 2021 Grand Design Solitude owners say
Most recent owner complaints, unedited.
Beginning in 2024 our RV exhibited consistent structural movement & frame flex including: upper deck flex, front cap cracking, cracked moldings, sidewall movement, filon transition movement, screws pushing upward into floors, slides coming out during travel. Rv has unsuccessfully been repaired twice by Grand Design SRT & three times at Grand Design Factory. Independent RV service repair shop identified further damage caused by Grand Designs failed attempts at repair.
Frame weld cracks. Wall support framing cracks. Damaged cargo doors from flexing frame. Slideout damage from frame support break which may or may not keep it locked in placed during travel. Has been returned to manufacturer twice. 2024, 2025. Same issues again in 2026.
Frame flex from broken welds on the pin box to the frame. It’s a very wide know thing across many GD models that used this same frame / pin box. I have pictures showing the angle of the pin box once weights applied, it’s a safety issue and there’s tons of people online having the same issue.
I am submitting a new safety complaint regarding my 2021 Grand Design Solitude 380FL, VIN [XXX] . On my first trip out this year (4/29/2026), while towing approximately 20 miles to a nearby campsite, the off-door-side cargo compartment door again opened during transit. As a direct result, a bucket containing my water hose, regulator, 90 degree fitting, etc were ejected from the compartment and onto the roadway at highway speed. This is a significant escalation of the safety issue previously reported. This is no longer limited to a door opening condition—this event resulted in unsecured cargo being discharged into a public roadway, creating a hazard to other motorists. This failure occurred despite extensive prior repair efforts, including: Four separate Service Response Team (SRT) visits Approximately 10 weeks at the Grand Design factory for structural and frame-related repairs Multiple inspections and repair attempts involving both Grand Design RV and Lippert Components The cargo door opening condition has persisted throughout this entire repair history and has not been resolved. This repeated failure following extensive repair attempts demonstrates that the manufacturer’s inspection and repair procedures have not corrected the defect. The condition remains present and continues to pose a clear safety risk to other motorists on public roadways. This event further supports that: The defect is ongoing and unresolved Prior repairs were ineffective The condition presents a real hazard to public roadways I respectfully request that this incident be included in the investigation record and considered as evidence of an unresolved safety defect with the potential to cause roadway incidents or crashes. I am available to provide photographs, video, or additional documentation related to this event. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
I am filing a complaint regarding the frame manufactured by Lippert Components on my 2021 Grand Design Solitude 380FL (VIN [XXX] ). Lippert is the OEM supplier of the frame and has been directly involved in inspection and repair of ongoing structural failures. The unit has experienced repeated structural failures, including frame flex, broken welds, cracking of the main I-beam rails above both axles, torn steel upper sill plates and suspension failures. These issues began within the manufacturer’s warranty period and required extensive factory repairs from December 2024 to February 2025, including reinforcement of the upper deck, weld repairs, sill plate replacement, and added gussets. Despite these repairs, new failures developed shortly after. In September 2025, a Lippert technician (dispatched at Grand Design’s request) identified new frame cracks above both axles, a bent outrigger support, and repeated suspension failure. These were not pre-existing conditions but occurred after factory structural repairs. In December 2025, Lippert performed additional field repairs, including welding the cracked frame, adding fishplates, reinforcing outriggers, and installing cross-members. These repairs were performed under engineering direction, and Lippert confirmed no standard TSB applied to this condition. Despite multiple repair attempts, the unit continues to exhibit structural-related issues, including cargo doors opening during transit and recurring suspension failures. These conditions indicate ongoing and unsafe frame deflection and instability. Grand Design has now stated their repairs are done per a customer satisfaction campaign, and attributed responsibility for any ongoing frame issues to Lippert, and has abandoned any further assistance with cargo doors opening during transit. This represents a systemic structural defect affecting safety, including risk of debris or components entering roadways and loss of structural integrity during travel. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION
I was informed to reference this code PE24029. 2021 5th Wheel - Grand Design Solitude 310GK. Frame cracks and separation. June 2025, contact made with Grand Design and they approved for us to obtain a welder. We did. It did not correct the issue and we contacted Grand Design again. Our Unit has been in the repair shop since December10, 2025. Back and forth emails with Grand Design. Sides need to be taken off to get to frame issues and make a repair. Would love for representative from the federal safety agency to come and look at our unit. The lower portion has been dropped, and you will be able to view. It's currently, in Santa Fe Springs, CA.
The contact owns a 2021 Grand Design Solitude Trailer. The contact stated that while driving approximately 60-65 MPH, the cargo doors opened independently. Additionally, the contact stated that the built-in tables were detaching from the wall, and the wall panels were separating in the bunk room. The contact also noticed that the walls were separating from the floor. The contact related the failure to the federal safety agency Action Number: PE24029 (Structure). The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not notified of the failure. The failure mileage was unknown.
Current Symptoms (post-repair): Excessive Frame Flex: - Pin Box Flex, including cracking sounds - Bulge in bottom corner of front driver side slide - Decal ripples - Screws snapping - Door alignment issues - Sawdust on interior furniture after moving - Pinch molding issues - Screws backing out Repairs were made on the unit in Feb 2025, however the above symptoms are still present (or have worsened) since the repair was completed.
On the evening of 7-1-25 we had finished unhooking the rv. As we were setting out our leveling blocks we noticed smoke pouring from the front battery compartment. After we had disconnected our batteries via the battery disconnect switch and removed the batteries we were able to search out the cause of the smoke . The power cable from the tow vehicle where it makes connection to the camper was inserted into a metal box. The connector to the box had come free allowing the cord to rub through and short to ground on the metal box causing the wire to burn back through the wire bundle into the battery compartment. This melted all the wires in the bundle and fused them together . There appears to be no fusebile links in line to protect against thermal overload. If we had not been parked and unhooked we would not have been able to respond so quickly to disable the battery power .
Compare the 2021 Grand Design Solitude
Other model years
Questions about the 2021 Grand Design Solitude
Is the 2021 Grand Design Solitude reliable?
Owners have filed 31 complaints about the 2021 Grand Design Solitude, 3.1 times a typical Solitude model year.
What is the 2021 Grand Design Solitude year score?
The 2021 Grand Design Solitude scores 30 out of 100 (poor). The score compares it with the other model years of the Grand Design Solitude: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2021 Grand Design Solitude?
Body and structure, with 24 complaints. Next is locks (6).
How many recalls does the 2021 Grand Design Solitude have?
4 recalls, covering equipment and suspension.
What year does the Grand Design Solitude have the most body problems?
The Grand Design Solitude model years with the most body complaints are 2022 (27 complaints), 2021 (24 complaints) and 2023 (11 complaints).
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