There have been 22 technical service bulletins issued for 1 Proterra model.
| Bulletin Date: | Sep. 23, 2020 |
| Component: | Structure. |
| Bulletin Summary: | This procedure is a updates the rooftop battery thermal management system unit brackets to a more robust design. |
| Proterra models covered in this TSB: |
2017 Proterra Catalyst,
2018 Proterra Catalyst.
|
| Bulletin Date: | Sep. 10, 2020 |
| Component: | Electrical system. |
| Bulletin Summary: | The reason for this software update is to the vehicle controller to the latest software version. |
| Proterra models covered in this TSB: |
2019 Proterra Catalyst,
2020 Proterra Catalyst.
|
| Bulletin Date: | Aug. 24, 2020 |
| Component: | Electrical system. |
| Bulletin Summary: | This procedure updates the powertrain software to the latest version for improved powertrain performance. A white paper showing an overview is provided at the end of this document. |
| Proterra models covered in this TSB: |
2019 Proterra Catalyst,
2020 Proterra Catalyst.
|
| Bulletin Date: | Aug. 7, 2020 |
| Component: | Electrical system. |
| Bulletin Summary: | This procedure adds electromagnetic interference filters to the variable frequency drive systems on the bus to resolve potential charging and startup issues. |
| Proterra models covered in this TSB: |
2019 Proterra Catalyst,
2020 Proterra Catalyst.
|
| Bulletin Date: | Aug. 6, 2020 |
| Component: | Electrical system:propulsion system:traction motor. |
| Bulletin Summary: | This retrofit changes the traction motor inverter enable signal from 12 to 24 volts to improve reliability. |
| Proterra models covered in this TSB: |
2017 Proterra Catalyst,
2018 Proterra Catalyst.
|
| Bulletin Date: | Apr. 28, 2020 |
| Component: | Seats. |
| Bulletin Summary: | This procedure upgrades the rear flip up seat mount to a more robust design. |
| Proterra models covered in this TSB: |
2018 Proterra Catalyst.
|
| Bulletin Date: | Aug. 16, 2019 |
| Component: | Structure. |
| Bulletin Summary: | This retrofit removes the 5-position door switch and replaces it with individual front and rear door switches. |
| Proterra models covered in this TSB: |
2018 Proterra Catalyst.
|
| Bulletin Date: | Aug. 14, 2019 |
| Component: | Electrical system. |
| Bulletin Summary: | This retrofit installs a resistor in parallel with the ada alarm to prevent it from sounding when the ada ramp is not deployed. |
| Proterra models covered in this TSB: |
2018 Proterra Catalyst,
2019 Proterra Catalyst.
|
| Bulletin Date: | Aug. 14, 2019 |
| Component: | Electrical system. |
| Bulletin Summary: | The reason for this software update is to update various controllers. All the included proterra catalyst e2 vehicles require a change to the software/configuration for the following items: battery pack software, charge controller, esm softw |
| Proterra models covered in this TSB: |
2017 Proterra Catalyst,
2018 Proterra Catalyst.
|
| Bulletin Date: | Aug. 13, 2019 |
| Component: | Electrical system. |
| Bulletin Summary: | The reason for this software update is to update various controllers. All the included proterra catalyst e2 vehicles require a change to the software/configuration for the following items: battery pack software, charge controller, esm softw |
| Proterra models covered in this TSB: |
2018 Proterra Catalyst,
2019 Proterra Catalyst.
|
| Bulletin Date: | Jul. 17, 2019 |
| Component: | Latches/locks/linkages. |
| Bulletin Summary: | The brackets and latches holding the lid on the 35ft catalyst e2 clamshell covering rooftop components can come loose, possibly causing the lid to open. An open lid on a moving vehicle could become damaged or in an extreme case disconnected |
| Proterra models covered in this TSB: |
2018 Proterra Catalyst,
2019 Proterra Catalyst.
|
| Bulletin Date: | Jul. 11, 2019 |
| Component: | Electrical system. |
| Bulletin Summary: | Voltage sags are causing the datalogger to reset, losing data used for monitoring and servicing the vehicles. Proterra issued this service bulletin to add a diode that will prevent voltage sags and loss of data. |
| Proterra models covered in this TSB: |
2018 Proterra Catalyst,
2019 Proterra Catalyst.
|
| Bulletin Date: | Jul. 10, 2019 |
| Component: | Latches/locks/linkages. |
| Bulletin Summary: | The brackets and latches on 40ft catalyst buses holding the lid on the clamshell covering rooftop components can come loose, possibly causing the lid to open. An open lid on a moving vehicle could become damaged or in an extreme case discon |
| Proterra models covered in this TSB: |
2015 Proterra Catalyst,
2016 Proterra Catalyst,
2017 Proterra Catalyst,
2018 Proterra Catalyst,
2019 Proterra Catalyst.
|
| Bulletin Date: | Jul. 10, 2019 |
| Component: | Electrical system. |
| Bulletin Summary: | Pin placement in the dash dmuxk connector was incorrect and caused the ican network to be improperly terminated. Proterra issued this service bulletin to relocate the pin to properly terminate the ican network. |
| Proterra models covered in this TSB: |
2015 Proterra Catalyst,
2016 Proterra Catalyst,
2017 Proterra Catalyst,
2018 Proterra Catalyst,
2019 Proterra Catalyst.
|
| Bulletin Date: | Jul. 3, 2019 |
| Component: | Electrical system. |
| Bulletin Summary: | Due to a wiring harness change, the cord grip on the power steering motor is the wrong size, which could allow water to leak into the motor wiring junction box, causing the power steering motor to stop working. Proterra issued this service |
| Proterra models covered in this TSB: |
2018 Proterra Catalyst.
|
| Bulletin Date: | Jul. 3, 2019 |
| Component: | Electrical system. |
| Bulletin Summary: | A software error was causing a false state of charge calculation, shutting off the DC to DC converter, causing the low voltage batteries to lose charge. Loss of power to the low voltage battery could cause ancillary systems in the vehicle t |
| Proterra models covered in this TSB: |
2017 Proterra Catalyst,
2018 Proterra Catalyst,
2019 Proterra Catalyst.
|
| Bulletin Date: | Jun. 12, 2019 |
| Component: | Electrical system. |
| Bulletin Summary: | This procedure changes the wiring for the radiator for improved reliability. |
| Proterra models covered in this TSB: |
2018 Proterra Catalyst,
2019 Proterra Catalyst.
|
| Bulletin Date: | May. 29, 2019 |
| Component: | Electrical system. |
| Bulletin Summary: | This procedure will replace current air compressor and power steering variable frequency drive emi filter with one of more robust design. |
| Proterra models covered in this TSB: |
2018 Proterra Catalyst.
|
| Bulletin Date: | May. 28, 2019 |
| Component: | Electrical system. |
| Bulletin Summary: | This procedure relocates the auxiliary air tank pressure transducer and provides additional grounding for the rear air tank bracket. |
| Proterra models covered in this TSB: |
2018 Proterra Catalyst.
|
| Bulletin Date: | May. 14, 2019 |
| Component: | Exterior lighting. |
| Bulletin Summary: | This procedure will upgrade the rear clearance lights to improved energy efficiency and increased longevity of the lights. |
| Proterra models covered in this TSB: |
2018 Proterra Catalyst.
|
| Bulletin Date: | May. 9, 2019 |
| Component: | Electrical system. |
| Bulletin Summary: | This retrofit installs a diode in series with the datalogger power input to prevent voltage sags from resetting the datalogger. |
| Proterra models covered in this TSB: |
2018 Proterra Catalyst.
|
| Bulletin Date: | May. 7, 2019 |
| Component: | Equipment. |
| Bulletin Summary: | This updates the datalogger firmware to the latest version for improved communication. |
| Proterra models covered in this TSB: |
2018 Proterra Catalyst.
|