2019–2020 Thor Motor Coach Challenger, 2019–2020 Thor Motor Coach Magnitude, 2019–2020 Thor Motor Coach Miramar and 4 other models Recall: Vehicle control system software may cause the slide-out room to move…
NHTSA campaign 19V504000 · Equipment · filed Jun 30, 2019 · verified Jul 30, 2026
The defect
Thor Motor Coach (TMC) is recalling certain 2019-2020 Challenger, Miramar, Magnitude, Outlaw, Omni, and Palazzo motorhomes. The vehicle control system software may cause the slide-out room to move unexpectedly.
The risk
Unexpected movement of the slide-out room can increase the risk of a injury.
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 →The fix — what to do
TMC will notify owners, and dealers will update the affected software, free of charge. The recall is expected to begin August 28, 2019. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000170.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Affected vehicles
Related recalls
More Thor Motor Coach Challenger recalls
- 2017 Thor Motor Coach Challenger and 2 other models — External compartment outer door skin may separate from the…
- 2017–2019 Thor Motor Coach Challenger and 2 other models — Motorized windshield roller shade at the driver's seating…
- 2013 Thor Motor Coach Ace and 7 other models — Windshield wiper system may have been incorrectly…
- 2008–2010 Damon Essence and 53 other models — See a list of the affected trailer models at…
- 2017–2018 Thor Motor Coach Axis and 11 other models — Cargo carrying capacity (CCC) label on these vehicles may…
Other campaigns involving Thor Motor Coach vehicles
- 2023–2024 Thor Motor Coach Dazzle and 7 other models — Solar panel mounting brackets may become loose or break…
- 2023–2024 Thor Motor Coach Dazzle and 5 other models — Adhesive securing the solar panels to the roof may fail…
- 2025–2026 Thor Motor Coach Chateau and 7 other models — A P-clamp may not have been installed, allowing the Liquid…
All Thor Motor Coach Challenger recalls → · All Thor Motor Coach recalls →
Source: NHTSA recall database, campaign 19V504000 (manufacturer number RC000170). Data last verified Jul 30, 2026.