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February 27, 2021 Service bulletin

Transit bus repair to horn, the horn relay is retrofitted in

Proterra technical service bulletin SC-21-082 for 2019-2020 Proterra Catalyst.

Bulletin number
SC-21-082 (SC-21-082)
Component
Electrical system
Summary
Transit bus repair to horn, the horn relay is retrofitted in this document with a improved relay design.

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