2020 Thor Motor Coach Chateau, 2020 Thor Motor Coach Four Winds, 2020 Thor Motor Coach Freedom Elite and 4 other models Recall: Battery cables may loosen on the battery isolation manager (BIM) or…
NHTSA campaign 19V609000 · Electrical System · filed Aug 20, 2019 · verified Jul 30, 2026
The defect
Thor Motor Coach (TMC) is recalling certain 2020 Chateau, Daybreak, Four Winds, Freedom Elite, Majestic, Outlaw and Quantum motorhomes. The battery cables may loosen on the battery isolation manager (BIM) or battery isolation relay (BIR), causing premature BIN/BIR failure or electrical arcing.
The risk
The loose connection can causing arcing, increasing the risk of a fire.
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 install lock washers to properly secure the battery cable to the BIM/BIR. If the cable was loose, dealers will also replace the BIM/BIR, free of charge. The recall began October 10, 2019. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000172.
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
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Other campaigns involving Thor Motor Coach vehicles
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All Thor Motor Coach Chateau recalls → · All Thor Motor Coach recalls →
Source: NHTSA recall database, campaign 19V609000 (manufacturer number RC000172). Data last verified Jul 30, 2026.