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October 21, 2020 Service bulletin

Transit bus software update to support the quarterly cadence of software upgrades

Proterra technical service bulletin SC-20-147 for 2019-2020 Proterra Catalyst and 2019-2020 Proterra ZX5.

Bulletin number
SC-20-147 (SC-20-147)
Component
Electrical system
Summary
Transit bus software update to support the quarterly cadence of software upgrades. This release updates a timer to the drivers seat to reduce false alarms of no driver in the seat over bouncy roads, mapped new output for horn relay. For the vehicle controller fixed issue around the ambient and coolant temp sensor. And many other fixes seen in the documentation

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