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Data through Oct 2026
Campaign 20V-711

BIM (Battery Isolation Manager)/BIR (Battery Isolation Relay) is not watertight when exposed to engine compartment heat

View NHTSA filingAll Thor Motor Coach campaigns
Defect summary

Thor Motor Coach (TMC) is recalling certain 2020-2021 Daybreak, Four Winds, Chateau, Freedom Elite, Quantum motorhomes built on a Chevrolet chassis. The BIM (Battery Isolation Manager)/BIR (Battery Isolation Relay) is not watertight when exposed to engine compartment heat.

Consequence

Water may get into the BIM/BIR and create electrical arcing, increasing the risk of a fire.

Remedy

TMC will notify owners, and dealers will replace the BIM/BIR with a Trombetta solenoid, free of charge. The recall began January 13, 2021. Owners may contact TMC customer service at 1-877-855-2867. TMC's number for this recall is RC000206.

Notes

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.

Source: NHTSA ODI recalls file, campaign 20V711000. Text as published by NHTSA.
Vehicles covered

7 product lines are covered

Owner complaints filed with NHTSA about electrical system on these vehicles: 1, of which 0 involved a crash, fire, injury or death. Complaints are not verified by NHTSA.

Vehicles covered by campaign 20V-711
MakeModelModel yearsComplaints on this component
Thor Motor CoachDaybreak2020 to 20210
Thor Motor CoachFour Winds20210
Thor Motor CoachFreedom Elite2020 to 20211
Thor Motor CoachQuantum20210
Thor Motor CoachRedundant Chateau2020 to 20210
Thor Motor CoachRedundant Four Winds20200
Thor Motor CoachRedundant Quantum20200
Source: NHTSA ODI recalls and complaints files. Equipment, tire and child-seat campaigns list products, not vehicles.