2021 Thor Motor Coach Challenger Recalls
No NHTSA recalls on record for the 2021 Thor Motor Coach Challenger. That means NHTSA has no open safety campaign for this vehicle — it does not guarantee the absence of problems. Owners have filed 7 complaints with NHTSA, most often about the engine and engine cooling. Last updated July 5, 2026.
Complaints by component
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“Unloading the storage compartments and discovered that the compartment wall was melted. It is directly next to, about 6 inches away from, the exhaust pipe.”
“Unloading the storage compartments and discovered that the compartment wall was melted. It is directly next to, about 6 inches away from, the exhaust pipe.”
“Unloading the storage compartments and discovered that the compartment wall was melted. It is directly next to, about 6 inches away from, the exhaust pipe.”
“Exhaust has blown (melted) a hole in the storage bin no heat shield was placed. The bin next to it has a heat shield.”
“Exhaust has blown (melted) a hole in the storage bin no heat shield was placed. The bin next to it has a heat shield.”
“Exhaust has blown (melted) a hole in the storage bin no heat shield was placed. The bin next to it has a heat shield.”
“Brand new vehicle, first trip, what appears to be a break pads lock up, smell rubber first, got signal from another driver to pull over. When we got home got recall notice 21s17 with specific instructions to get back to dealer for service, but dealer does not have parts and told me not to come for…”
Defect investigations
Trailer Hitch Receiver Structure May Crack and Separate
The Office of Defects Investigation (ODI) opened this Preliminary Evaluation, PE24023, on August 14, 2024, to investigate allegations of Thor Motor Coach motorhome frame or trailer hitch structure cracking and separating. The hitch was manufactured by Lippert and installed by Thor as standard original equipment. ODI…
Trailer Hitch Receiver Structure May Crack and Separate
The Office of Defects Investigation (ODI) opened this Preliminary Evaluation, PE24023, on August 14, 2024, to investigate allegations of Thor Motor Coach motorhome frame or trailer hitch structure cracking and separating. The hitch was manufactured by Lippert and installed by Thor as standard original equipment. ODI…
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2021 Thor Motor Coach Challenger as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.