SC-25-015
Service Bulletin/Repair Instructions
Service bulletin outlining an EEPROM adjustment to reduce regeneration cycles, resulting in lower cabin noise and reduced operating temperatures.
Vehicle report
2022 PROTERRA ZX5
Service bulletins
74 bulletinsTechnical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
FC-24-020
Service Bulletin/Repair Instructions
Transit Vehicle inspection of the DC cables to ensure all split blocks and swivel bundle spacers are installed.
SC-24-013
Service Bulletin/Repair Instructions
Transit bus software update to support bugs and enhancement for the fleet. As well as fault updates.
SC-24-014
Service Bulletin/Repair Instructions
Heavy duty transit bus software update to support bugs and enhancements for the ZX5 fleet.
SC-24-009
Service Bulletin/Repair Instructions
Software update for the 800vRRs Vehicle and Body Software to reduce the radiator fan current draw to 80%. Additionally corrects a bug to properly route ESM faults away from the coolant light icon.
SC-23-007
Service Bulletin/Repair Instructions
HVAC Software update to increase the threshold voltage from 740v to 785v to overcome with the HV fault at 100% SOC.
SC-23-160
Service Bulletin/Repair Instructions
Transit bus vehicle controller software update to fix bugs and improve driver experience.
SC-23-176
Service Bulletin/Repair Instructions
BMS software update to the latest version. It improves current sensors performance and adjusts the isolation fault threshold value.
SC-23-177
Service Bulletin/Repair Instructions
This procedure updates the BMS software to the latest version.
SC-23-042
Service Bulletin/Repair Instructions
Transit bus harness RW to add diode inline for proper can communication.
SC-23-054
Service Bulletin/Repair Instructions
Relocation of the air compressors intake as well as adding a preliminary filter at the top of the air intake.
SC-23-062
Service Bulletin/Repair Instructions
The procedure describes the process of updating the Customer CAN Gateway to improve data retrieval on specific customer ITS equipment on ZX5 vehicles.
FC-23-140
Service Bulletin/Repair Instructions
Service bulletin fleet check for the transit buses due to potential missing split blocks on DuoPower Vehicles.
SC-23-154
Service Bulletin/Repair Instructions
The procedure describes the process of updating the PCM to latest Software to reduce improper faults.
SC-23-082
Service Bulletin/Repair Instructions
This procedure adds improved caps to the coolant system for 800V buses.
SC-23-135
Service Bulletin/Repair Instructions
This procedure describes the process for updating the 800VRR Prodrive Vehicle, Powertrain, Body Controller, ESM and Charge Controller software to BuSCoM 2.0.
SC-23-136
Service Bulletin/Repair Instructions
This procedure describes the process for updating the 800VvRR DuoPower Vehicle, Powertrain, Body Controller, ESM and Charge Controller software to BuSCoM 2.0.
IB-23-124
Service Bulletin/Repair Instructions
Service Bulletin for Transit Vehicles to reduce the gearboxes PMI interval due to failing filters.
FC-23-003
Service Bulletin/Repair Instructions
Repair instruction to inspect heavy duty transit vehicles for humidity in the battery pack and perform preventative maintenance.
SC-23-128
Service Bulletin/Repair Instructions
The procedure describes the process of rerouting the rooftop coolant lines so the expansion tank is downstream of the HVAC chiller and lowers the pressure drop between expansion tank and pump inlet.
SC-23-070
Service Bulletin/Repair Instructions
Transit bus body work repair instructions to support destination side delamination repair.
SC-22-042
Service Bulletin/Repair Instructions
Repair instructions for transit buses master switch. This repair kit allows for the vehicle to transition to a 4 position master switch due to part shortages of the 5 position.
SC-22-016
Service Bulletin/Repair Instructions
Service Bulletin for 35 foot transit bus vehicles experiencing CAN noise, overlay harness to directly connect the brake pedals power and CAN to the pedal.
SC-23-090
Service Bulletin/Repair Instructions
This Technical Service Bulletin covers the procedure for replacing the Power Electronic Coolant Loop quick connect fittings with more durable brass fittings on 35ft ZX5.A0 buses.
SC-23-091
Service Bulletin/Repair Instructions
This Technical Service Bulletin covers the procedure for replacing the Power Electronic Coolant Loop quick connect fittings with more durable brass fittings for 40ft ZX5.A0 buses.
SC-23-121
Service Bulletin/Repair Instructions
This procedure describes the process for updating the Vehicle and Body Controller software to the latest version on 800v RR Prodrive buses.
SC-23-109
Service Bulletin/Repair Instructions
The procedure describes the process of updating the vehicles software along with a hardware change to improve the vehicles experience and diagnostics on ZX5.A02 buses.
SC-22-044
Service Bulletin/Repair Instructions
Bulletin instructions for rotating the ambient temp sensor 180deg on transit buses to reduce road debris from accumulating on the temp sensor.
SC-23-115
Service Bulletin/Repair Instructions
The procedure describes the process of updating the vehicles software to 3.8.13 to improve the vehicles experience and diagnostics.
SC-23-043
Service Bulletin/Repair Instructions
Replaces DuoPower Drive Motor when a failure occurs on the streetside electric motor.
SC-23-055
Service Bulletin/Repair Instructions
Relocation of the air compressors intake as well as adding a preliminary filter at the top of the air intake..
SC-22-087
Service Bulletin/Repair Instructions
Bulletin Instructions for replacing the run switch due to the prior loosening over time.
SC-23-094
Service Bulletin/Repair Instructions
Inspection document of the Transit Duo Power vehicles to take a close look at the oil filters.
SC-22-074
Service Bulletin/Repair Instructions
Instructions to relocate back up alarm on specific transit customer vehicles. The original orientation allowed for water to accumulate causing it to fail.
SC-23-085
Service Bulletin/Repair Instructions
The procedure describes the process of updating the gearboxes from a dual turn to a single turn snap ring on Duopower buses.
SC-23-079
Service Bulletin/Repair Instructions
This procedure describes the process for updating the 800V DuoPower Body, Vehicle and Powertrain Controllers software to the latest version.
SC-23-044
Service Bulletin/Repair Instructions
The procedure describes the process of removing the previous used parking brake tank support bracket, and reinstalling a more secured bracket.
SC-23-041
Service Bulletin/Repair Instructions
Retrofitting the passenger stop request buttons to properly illuminate the sign by the driver to allow other passengers and driver that a customer would like to exit the vehicle.
SC-23-001
Service Bulletin/Repair Instructions
Transit bus repair instruction to install new fasters on the destination sign for improved durability.
SC-22-115
Service Bulletin/Repair Instructions
Repair instructions for transit buses to replace the destination sign bracket hardware to nylocks.
SC-22-119
Service Bulletin/Repair Instructions
Instruction to replace a coolant hose to the radiator with a reinforced hose.
SC-23-15
Service Bulletin/Repair Instructions
Updates the body controller on select vehicles to address bugs and upgrades from the past quarter.
SC-23-030
Service Bulletin/Repair Instructions
Software update to the HVAC controller due to a supplier change in isolator materials. The solution RPM changed to reduce the resonance heard in the cabin.
SC-23-019
Service Bulletin/Repair Instructions
Transit software update to chargeport B, to allow the vehicle to charge from two locations.
SC-23-012
Service Bulletin/Repair Instructions
The Vehicle Controller Software release includes Port B functionality, Pump command updates, and customer specific functionality.
SC-23-13
Service Bulletin/Repair Instructions
Model specific Body controller software update to v1.5.0 to satisfy customer requirements, new feature requests, and to address other improvements/bug fixes.
IB-22-130
Service Bulletin/Repair Instructions
Bulletin instructions for transit buses to support customers aligning vehicles to the OEM specs.
SC-21-149
Service Bulletin/Repair Instructions
On the transit battery electric buses it was found that some of the HV batteries had a configuration improperly set causing the battery to not balance correctly reducing the vehicles range.
FC-23-006
Service Bulletin/Repair Instructions
Repair instructions for the telemetry system on the heavy duty transit buses if the system is not reporting.
SC-22-104
Service Bulletin/Repair Instructions
Instructions to add spacers to the aux heat tank to reduce stress acted on.
SC-22-152
Service Bulletin/Repair Instructions
Update to Vehicle Controller & Charge Port B Software. These releases are a package that should be flashed together and address chargeportB functionality, ECUs sleep mode, SOC threshold calibration
SC-22-144
Service Bulletin/Repair Instructions
Software upgrade to allow vehicle to precondition the AC while charging the vehicle.
SC-21-176
Service Bulletin/Repair Instructions
Transit bus torque update to HVJB in the rear trunk of the bus.
SC-22-120
Service Bulletin/Repair Instructions
DriveTrain software update to improve diagonstics and shifting for the vehicle.
IB-23-032
Service Bulletin/Repair Instructions
Service Bulletin for an alternative coolant temp sensor for transit buses as the original sensor installed is challenging to purchase due to supply constraints.
SC-22-088
Service Bulletin/Repair Instructions
Replacement connectors and upgraded heat shrink to prevent UV damage to the wiring.
FC-22-092
Service Bulletin/Repair Instructions
Fleet check/repair instructions heavy duty transit to inspect for air lines installed in the wrong order.
SC-22-085
Service Bulletin/Repair Instructions
Service Bulletin Instructions to update the vehicle controller software, bug fixes ands improvements to the vehicle.
SC-22-078
Service Bulletin/Repair Instructions
Instructions updating the Powertrain Controller on select Transit buses for improved powertrain performance.
SC-22-079
Service Bulletin/Repair Instructions
Instructions for a vehicle controller update on the transit buses to fix bugs and protect components, specifically overhead charging, compressor and inverter. Improving diagnostics of these units.
SC-22-073
Service Bulletin/Repair Instructions
Bulletin Instructions to switch out stanchion fittings that attach the vertical rails to ceiling system on transit buses.
SC-22-064
Service Bulletin/Repair Instructions
Bulletin instructions to update the horns electrical relay for transit buses.
SC-22-058
Service Bulletin/Repair Instructions
Bulletin to update Transit bus body controllers for improved diagnostics and two new parameters to accommodate customer requests.
SC-21-103
Service Bulletin/Repair Instructions
Repair instructions for rooftop passthrough if wires have heat damage. Related to 24V-655, prior to remedy.
SC-22-017
Service Bulletin/Repair Instructions
Service Bulletin for select transit buses to incorporate an overlay harness bus buses with high CAN noise.
SC-21-159
Service Bulletin/Repair Instructions
Transit bus bulletin to install snorkel to air compressor to prevent water and road grim from entering the intake.
SC-21-151
Service Bulletin/Repair Instructions
Transit bus repair to the air compressor, adding a snorkel to relocate the air intake to get cleaner air into the compressor.
SC-21-143
Service Bulletin/Repair Instructions
Transit bus repair at the battery thermal management system in which the U bracket is being replaced due to cracking.
SC-21-060
Service Bulletin/Repair Instructions
Transit bus rear axle cover bolt replacement. The hardware originally installed had the wrong coating for the harness road grim.
SC-21-087
Service Bulletin/Repair Instructions
Transit bus repair for horn relays, improved horn relay installed during retrofit.
SC-20-140
Service Bulletin/Repair Instructions
Transit bus repair for the rear door VIP sensors. This repair provides a clip to go behind the sensor to keep it from falling down.
SC-21-056
Service Bulletin/Repair Instructions
Transit bus repair to the HVAC, the supply air temperature sensor is being replaced to improved sealed sensor provided by our HVAC OEM. The sensor failure prevents the HVAC from running.
SC-21-027
Service Bulletin/Repair Instructions
Transit bus repair to the rear doors, instruction provided require a new bolt to be added to the mechanism.
SC-20-159
Service Bulletin/Repair Instructions
Transit bus repair to the side windows to include a larger sealing gasket to prevent water from entering cabin.
Reading this report
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.