2021 Grand Design Solitude problems & reliability
30 owner complaints filed with NHTSA for the 2021 Grand Design Solitude, alongside 4 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Structure → | 23 | 77% |
| Unknown OR Other | 15 | 50% |
| Latches/locks/linkages | 6 | 20% |
| Suspension | 5 | 17% |
| Electrical System | 2 | 7% |
| Equipment | 2 | 7% |
| Service Brakes | 1 | 3% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Complaints by incident year
What owners report
“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…”
Structure · filed Aug 5, 2026
“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.”
Unknown OR Other · filed May 14, 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.”
Unknown OR Other · filed May 3, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- Frame Flex on Grand Design Fifth Wheel Recreational Trailers
Preliminary Evaluation PE24029 · opened Oct 9, 2024 · open
Technical service bulletins
8 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2021 Grand Design Solitude.
Grand Design is addressing concerns of excessive frame flex or wall securement in the front upper deck area of a limited number of fifth-wheel units. This condition could potentially occur over time due to a combination…
920017 · Service Campaign · issued Nov 22, 2025
Lippert Components and Grand Design RV are launching a Customer Satisfaction Campaign to address frame web cracks appearing above the spring hangers on some Solitude 310GK & Reflection 303RLS models. The units affected…
920015 · Service Campaign · issued Oct 13, 2025
Lippert Components and Grand Design RV are launching a Customer Satisfaction Campaign to address frame web cracks appearing above the spring hangers on some Solitude 310GK & Reflection 303RLS models. The units affected…
920015 · Service Campaign · issued Oct 13, 2025
Lippert Components and Grand Design RV are launching a Customer Satisfaction Campaign to address frame web cracks appearing above the spring hangers on some Solitude 310GK & Reflection 303RLS models. The units affected…
920015 · Service Campaign · issued Oct 13, 2025
TSB 24-001 Issued in March on March 7th. Concern: Complaint of upper deck flex which results in cosmetic damages to the interior and excessive flex at the pin box. Remedy : The procedure outlined in attached summary to…
TSB 24-001 · Service Bulletin/Repair Instructions · issued Apr 10, 2024
Broken Interior Step treads. Steps may break at the riser due to the amount of overhang.
24-002 · Service Bulletin/Repair Instructions · issued Mar 11, 2024
The rear upper deck on Solitude ST390RK models produced prior to June 6, 2022 may not be properly supported. As a result, the rear upper deck floor may sag slightly at the sidewalls. Remedy: The remedy includes the use…
TSB 22-003 · Service Bulletin/Repair Instructions · issued Sep 14, 2022
Gray Tank has an uncapped plumbing hole on top of tank on ST346FLS select units.
TSB21-002 · Service Bulletin/Repair Instructions · issued Jun 9, 2021
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2021 Grand Design Solitude has 4 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2021 Grand Design Solitude?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.