2021 Grand Design Solitude structure problems

23 owner complaints filed with NHTSA name the structure on the 2021 Grand Design Solitude — 77% of all complaints for this model year.

Structure complaints

77%

share of all complaints

—

median reported incident mileage

0 / 0

crash / fire reports

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…”
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.”
filed May 14, 2026

Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.

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
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
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

Year	Reports	Share
2022 Solitude	23	70%