2021 Grand Design Solitude

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 NHTSA 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.

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.

My fifth wheel has extreme frame flex which caused compartment doors to come open while traveling sometimes allowing things to fall out while traveling. Having a screw driver falling out and hitting another car was a major concern. Grand Design has the camper to address the frame flex. I believe the frame flex was the cause as sometimes the latches wouldn't engage.

Issue Description: On multiple occasions during travel, cargo doors and the main entry door have opened while the vehicle is in motion. We have been fortunate to notice the doors flying open, allowing us to quickly stop before losing any cargo. Cargo Risk: These compartments carry cargo. When the door flies open, there is a significant risk of cargo flying out of the vehicle. This creates a hazard for oncoming motorists, either through airborne cargo or cargo on the roadway. Evidence of Problems: Missing sidewall screws in front storage. Loose sidewall screws. Bulging on the frame on both edges adjacent to the pin box. Poor alignment of cargo door and entry door. Kitchen slide is binding, preventing proper opening and closing Symptoms / concerns of excessive frame flex

Frame failure. We had a fixed window fall off. Grand Design sent me a replacement window but I had to pay to have it installed. Then I had a trim piece fall off of the front-side and the identical piece on the opposite side was starting to come off. We also had sawdust appearing upfront when we would arrive to our destination and the front floor was starting to make noise when we walked. I also noticed the under-covering around the rv hitch going up into the rv when I hooked it up to my truck. Several screws have sheared in the compartment door frames. GD had the dealership take measurements/do test to confirm frame issues. GD sent a tech to Great American Rv, dealership in Hammond, Louisiana, to repair my camper along with several others. Supposedly the frame has been repaired, but the GD tech noted extra damages on the off door side of the RV. They said the relief cut on that side is still flexing and that there is a broke weld in the wall. GD stated that the broke weld falls outside of the structural warranty, but will only pay 1/2 of labor. Great American RV said there is another rv currently there with the same issue. It was dropped off at the dealership 12/19/2024 and is still being repaired.

Bish’s RV in Boise has confirmed that our unit is experiencing frame flex again. Our RV is under warranty and we have been waiting for over a month to hear back from Grand Design. This began in January 2023, we took the unit to a service center for repairs, which took over a month. However, after towing just 45 miles, the issue reoccurred. We were then sent to McClain’s in Sanger, Texas, where SRT Chris found that lag bolts had been left out during manufacturing. He replaced the seal plates with thicker steel and made necessary adjustments. Now that this issue has happened a third time, I’m concerned that the breaking seal plates are a symptom of a larger structural problem. We've also had a cargo door open during transport, along with a broken leaf spring and suspension. At this point, I have little confidence that a proper repair is even possible.