Transit bus repair for horn relays, improved horn relay installed during retrofit.
Proterra technical service bulletin SC-21-087 for 2019-2022 Proterra ZX5.
- Bulletin number
- SC-21-087 (SC-21-087)
- Component
- Electrical system
- Summary
- Transit bus repair for horn relays, improved horn relay installed during retrofit.
Vehicles covered
- Proterra ZX5 2019-2022 2019202020212022
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