2021 Thor Motor Coach Magnitude Recalls
No NHTSA recalls on record for the 2021 Thor Motor Coach Magnitude. That means NHTSA has no open safety campaign for this vehicle — it does not guarantee the absence of problems. Owners have filed 5 complaints with NHTSA, most often about the electrical system. 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.
“Rear house battery tray weld failed, tray fell and hit the ground, damaging bim, various cables etc. Identical to recall 19v-566 (2019–2020) but not included for 2021.

safety concern: batteries may detach on roadway, cause shorts/fire, or total power loss.
”
“Rear house battery tray weld failed, tray fell and hit the ground, damaging bim, various cables etc. Identical to recall 19v-566 (2019–2020) but not included for 2021.

safety concern: batteries may detach on roadway, cause shorts/fire, or total power loss.
”
“Rear house battery tray weld failed, tray fell and hit the ground, damaging bim, various cables etc. Identical to recall 19v-566 (2019–2020) but not included for 2021.

safety concern: batteries may detach on roadway, cause shorts/fire, or total power loss.
”
“A wiring harness was found pinched, pins bent and broken, apparently in the process of mating the motorhome body to the cassis cab. This cable has power in it and could result in a vehicle fire. Thor has been completely unresponsive in assisting me, despite acknowledging it’s out of warranty,…”
“Tl* the contact owns a 2021 thor magnitude bb35 built on a 2020 ford f-550 chassis n/a. The contact stated while stationary at a traffic light, while the depressing the accelerator pedal, the rv made an abnormal noise and started to roll backwards. The contact stated no warning light was…”
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 Magnitude as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.