The defect
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.
The risk
Water may get into the BIM/BIR and create electrical arcing, increasing the risk of a fire.
The 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.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Thor Motor Coach Daybreak | 2020, 2021 |
| Thor Motor Coach Four Winds | 2021 |
| Thor Motor Coach Freedom Elite | 2020, 2021 |
| Thor Motor Coach Quantum | 2021 |
| Thor Motor Coach Redundant Chateau | 2020, 2021 |
| Thor Motor Coach Redundant Four Winds | 2020 |
| Thor Motor Coach Redundant Quantum | 2020 |
Components: ELECTRICAL SYSTEM
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Thor Motor Coach Daybreak | 2020 | 0 | 5 |
| Thor Motor Coach Daybreak | 2021 | 0 | 4 |
| Thor Motor Coach Four Winds | 2021 | 2 | 9 |
| Thor Motor Coach Freedom Elite | 2020 | 2 | 7 |
| Thor Motor Coach Freedom Elite | 2021 | 0 | 4 |
| Thor Motor Coach Quantum | 2021 | 0 | 4 |
| Thor Motor Coach Redundant Chateau | 2020 | 0 | 3 |
| Thor Motor Coach Redundant Chateau | 2021 | 0 | 3 |
| Thor Motor Coach Redundant Four Winds | 2020 | 0 | 3 |
| Thor Motor Coach Redundant Quantum | 2020 | 0 | 2 |
Other electrical system recalls in 2020
105 of the 782 recall campaigns reported to NHTSA in 2020 concerned the electrical system; Thor Motor Coach filed 124 campaigns in all.
| 20V812000 28 Dec 2020 | Marion Body Works Inc. |
| 20V805000 21 Dec 2020 | SVI Trucks |
| 20V801000 18 Dec 2020 | Keystone RV Company |
| 20V790000 17 Dec 2020 | General Motors, LLC |
| 20V798000 17 Dec 2020 | Honda (American Honda Motor Co.) |
| 20V779000 15 Dec 2020 | Rosenbauer America |
| 20V783000 15 Dec 2020 | Halcore Group, Inc. |
| 20V781000 15 Dec 2020 | Ducati North America |
NHTSA recalls (public domain) · all recalls of 2020