Transit bus software update the HVAC controllers from our supplier
Proterra technical service bulletin SC-21-139 for 2019-2021 Proterra Catalyst and 2019-2021 Proterra ZX5.
- Bulletin number
- SC-21-139 (SC-21-139)
- Component
- Electrical system
- Summary
- Transit bus software update the HVAC controllers from our supplier. Adds additional protection from over current and logic for the heater safety switch faults that can occur on shutdown and restart.
Owners of these vehicles have filed 1 complaints in the electrical category.
Vehicles covered
- Proterra Catalyst 2019-2021 201920202021
- Proterra ZX5 2019-2021 201920202021
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