SC-23-158
Service Bulletin/Repair Instructions
Repair instructions for PP1 valve to prevent the parking brake from engaging while the vehicle is kneeling to allow for customers to enter and exit the vehicle.
Vehicle report
2019 PROTERRA CATALYST
Service bulletins
142 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.
SC-23-147
Service Bulletin/Repair Instructions
The procedure describes the process of updating the body controller to remove a 2.5 second delay to a door open request.
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.
IB-23-132
Service Bulletin/Repair Instructions
Repair instructions to support transit buses when a charge shunt fails. If the installed charge shunt were to fail we can replace with the original shunt installed, therefore this instruction set provides documentation for installing an alternative.
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-22-134
Service Bulletin/Repair Instructions
Replaces curb side Duopower motor when failure occurs.
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-23-121
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-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-23-043
Service Bulletin/Repair Instructions
Replaces DuoPower Drive Motor when a failure occurs on the streetside electric motor.
SC-23-180
Service Bulletin/Repair Instructions
Transit bus repair instruction for the drivers workplace driver barrier catch pole. Improved design after to prevent separation of the stanchion
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-21-128
Service Bulletin/Repair Instructions
Transit bus repair for the ADA ramp brackets, new method to secure the interior body mounting brackets for the front door ramp.
SC-22-150
Service Bulletin/Repair Instructions
Bulletin to add shim under the steering TLP due to build variances of the bodies and bond gaps.
SC-23-029
Service Bulletin/Repair Instructions
Repair bulletin for the HVAC Condenser Y Pipe on certain transit vehicles.
SC-23-15
Service Bulletin/Repair Instructions
Updates the body controller on select vehicles to address bugs and upgrades from the past quarter.
SC-22-089
Service Bulletin/Repair Instructions
Bulletin to update ADA ramp software. The vendor provided new software to support the ramp deploying and retracting at normal speed. Prior to the software the ramps were functioning slower than expected.
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.
FC-22-100
Service Bulletin/Repair Instructions
Inspection and repair instructions for heavy duty transit buses specifically looking at brake lines due to chaffing seen at a customer site.
SC-22-104
Service Bulletin/Repair Instructions
Instructions to add spacers to the aux heat tank to reduce stress acted on.
SC-21-176
Service Bulletin/Repair Instructions
Transit bus torque update to HVJB in the rear trunk of the bus.
SC-20-076
Service Bulletin/Repair Instructions
Transit bus repair to the electrical cabinet behind the drivers area. This bulletin updates the bracketry to be more robust in this area.
SC-22-097
Service Bulletin/Repair Instructions
Repair instructions for ADA ramp brackets that have come debonded due to water intrusion.
SC-22-121
Service Bulletin/Repair Instructions
Procedure to replace traction motor due to a quality issue from supplier.
SC-22-120
Service Bulletin/Repair Instructions
DriveTrain software update to improve diagonstics and shifting for the vehicle.
FC-22-157
Service Bulletin/Repair Instructions
Fleet check repair instruction for heavy duty transit buses to inspect for connector between interlock and ATC being installed in the wrong location.
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.
SC-21-161
Service Bulletin/Repair Instructions
Transit bus repair at the rear doors, door seal is screw into the body. This repair procedure includes installing inserts into the body to keep seal from coming loose.
FC-22-075
Service Bulletin/Repair Instructions
Fleet Check/ Repair Instructions for the heavy duty electric transit buses, checking the gap between the Vrod and suspension link bracket.
SC-22-085
Service Bulletin/Repair Instructions
Service Bulletin Instructions to update the vehicle controller software, bug fixes ands improvements to the vehicle.
SC-21-177
Service Bulletin/Repair Instructions
Transit bus repair instructions for auxiliary heat system. Replacement coolant lines that pass under the streetside wheelwell box.
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-21-042
Service Bulletin/Repair Instructions
Transit bus update to the air in take of the air compressor to support the compressor getting clean air into the unit to increase reliability.
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-21-010
Service Bulletin/Repair Instructions
Transit bus body composite repair at the rear door if any fiberglass is delaminating.
SC-21-090
Service Bulletin/Repair Instructions
Transit bus repair to stanchion floor mount to better dampen the stanchion system.
SC-21-166
Service Bulletin/Repair Instructions
Transit bus repair for exterior compartments gas strut brackets. Document provides instruction to improve the securement of the fixed brackets.
SC-21-158
Service Bulletin/Repair Instructions
Transit bus repair for the ADA ramp closeout bracket on the exterior of the bus. The replacement part is made from stainless steel reducing the previous mild steel that was corroding.
SC-21-091
Service Bulletin/Repair Instructions
Transit bus repair at the rear door, improve the securement of the edge trim.
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-21-181
Service Bulletin/Repair Instructions
Transit bus inspections for shipping blocks installed in egress windows to ensure proper closing/latching.
SC-22-027
Service Bulletin/Repair Instructions
Bulletin Instruction for upgrading the body and vehicle controllers software on transit buses. Update to fault thresholds and additional parameters added from customer requests.
SC-22-003
Service Bulletin/Repair Instructions
Transit bus procedure to inspect torque strips on the steering gearbox and record breakaway values then replacing the hardware and using blue loctite to reinstall.
SC-21-170
Service Bulletin/Repair Instructions
Transit bus repair instruction for compartment for an extended latch catch.
SC-21-183
Service Bulletin/Repair Instructions
Transit bus repair instructions to install a drain in the cavity where the ADA ramp sits.
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-21-162
Service Bulletin/Repair Instructions
Pin location change on an ECU to properly assign both doors open signal and the horn relay signal.
SC-21-130
Service Bulletin/Repair Instructions
Transit bus repair to replace mudflaps behind the rear wheels. Larger mudflaps will be installed to minimize road grime and debris from entering the rear vehicle cage, thereby offering better protection for the components in the rear of the bus.
SC-21-148
Service Bulletin/Repair Instructions
Transit bus powertrain software update to support the product to shift smoothly and reduce nuisance faults.
SC-21-139
Service Bulletin/Repair Instructions
Transit bus software update the HVAC controllers from our supplier. Adds additional protection from over current and logic for the heater safety switch faults that can occur on shutdown and restart.
SC-20-174
Service Bulletin/Repair Instructions
Transit bus to the vehicles electrical and software due to the odometer losing mileage.
SC-21-142
Service Bulletin/Repair Instructions
Transit bus software update to the body controller, when flashing the EEPROMs were auto setting to 238 not 0 when a new EEPROM was loaded on the vehicle. Then fixing a bug where the door entrance lights were not 100% brightness when doors were in use.
SC-21-001
Service Bulletin/Repair Instructions
Transit bus repair to the wheel well compartment hinge. The compartment lid was previously bonded on, this repair instructions updates the vehicle to use fasteners as well.
SC-21-123
Service Bulletin/Repair Instructions
Transit bus repair for rooftop coolant line that was collapsing reducing coolant flow.
SC-21-124
Service Bulletin/Repair Instructions
Transit bus repair to the Hadley ride height adding a check valve to the exhaust side of the the interlock valve.
SC-20-035
Service Bulletin/Repair Instructions
Transit bus repair to replace a fitting on the fire suppression system that has potential to chaff against aux heat components.
SC-21-078
Service Bulletin/Repair Instructions
Transit bus repair at the rear hatch of the vehicle. This document outlines how to make the repair and a better final solution for the vehicle.
SC-21-106
Service Bulletin/Repair Instructions
Transit bus software to fix bugs and reduce nuisance faults. Creates new EEPROMs for specific customer requests also updates logic for vehicles exterior lights to have cornering lights while in night mode.
SC-21-034
Service Bulletin/Repair Instructions
Transit bus repair to the air compressor, the previous banjo fitting was prone to leaking, the solid drain plug prevents compressor from losing oil.
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-21-097
Service Bulletin/Repair Instructions
Transit bus torque verification on the 3 phase power junction box for the air compressor.
SC-20-148
Service Bulletin/Repair Instructions
Transit bus steering column maintenance document to supplement maintenance and repair manual.
SC-21-039
Service Bulletin/Repair Instructions
Transit bus repair to the heated mat at the rear door of the vehicle to resolve sealing and securement issues.
SC-21-048
Service Bulletin/Repair Instructions
Transit bus fleet check to inspect the steering gearboxes and replace hardware.
SC-21-054
Service Bulletin/Repair Instructions
Transit bus repair instructions to the composite door header bracket if the door falls out of alignment.
SC-20-014
Service Bulletin/Repair Instructions
Transit bus repair to the aux heater drain plug for sizing and material appears the bill of materials called out the wrong size drain plug.
SC-21-037
Service Bulletin/Repair Instructions
Transit bus repair to relocate the front interlock muffler to prevent road grime from clogging the vent.
SC-21-088
Service Bulletin/Repair Instructions
Transit bus software update to the body controller, to update the controls to have the overhead lighting turn off after the doors close to reduce glare.
SC-20-145
Service Bulletin/Repair Instructions
Transit bus repair to the exterior compartment for the LV batteries. The hatch gas strut brackets were only bonded in place therefore with the new brackets they use hardware to secure. Additionally longer gas struts are provided to help service the LV batteries.
SC-21-040
Service Bulletin/Repair Instructions
Transit bus repair to the coolant system in which a bleed line is potentially allow for aeration of the coolant. Procedure caps off this line.
SC-20-102
Service Bulletin/Repair Instructions
Transit bus retrofit to supply constant power to the telemetry device to improve data collection and reliability.
SC-20-097
Service Bulletin/Repair Instructions
Transit bus repair for the gas struts on the wheel well box to no locking struts. The locking struts to the wheel well compartment were failing due to user error and not unlocking the strut prior to closing the compartment..
SC-21-077
Service Bulletin/Repair Instructions
Transit bus software update to the batteries, charge controller and vehicle controller. Fixes coolant level LEDs, ESM updated specific parameters around temperatures and auto pack configuration, BMS SW resolves brick imbalance, min/max humidity levels.
SC-20-165
Service Bulletin/Repair Instructions
Transit bus repair to support adding drains to an internal cavity of the bus body to prevent water accumulation.
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-20-162
Service Bulletin/Repair Instructions
Transit bus repair to the aux heat coolant tubes that run under the rear door have seen corrosion. The repair instruction requires accessing a metal plate under the fiberglass and pulling out the old tubes and installing tubes with oxidation protective measures.
SC-21-021
Service Bulletin/Repair Instructions
Transit bus retrofit to upgrade parking brake release tank to 2.5 gallons.
SC-20-138
Service Bulletin/Repair Instructions
Transit bus HVAC software upgrade to improve performance of the Eberspaecher unit.
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-21-075
Service Bulletin/Repair Instructions
Transit bus repair to HV roof pantograph charging cables. The HV lugs that are bolted to the pantograph rail must be fully sealed to prevent water ingress.
SC-21-030
Service Bulletin/Repair Instructions
Transit bus repair in the HVJB if excess heat is seen on the output for the BTMS heater.
SC-20-109
Service Bulletin/Repair Instructions
Transit bus repair to the exterior compartment panels to include a larger latch catch to support tolerance difference.
SC-21-050
Service Bulletin/Repair Instructions
Transit bus reliability improvement for the air intake of the auxiliary heater to intake fresher air.
SC-21-035
Service Bulletin/Repair Instructions
Transit bus door software update from door manufacturer to fix bugs.
SC-21-047
Service Bulletin/Repair Instructions
Transit bus front and rear door software update provided from the door vendor.
SC-21-045
Service Bulletin/Repair Instructions
Transit bus torque verification on the intermediate steering shaft.
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.
SC-20-127
Service Bulletin/Repair Instructions
Transit bus repair to the air dryer governor switch due to the original not performing as well with the environmental expose.
SC-20-015
Service Bulletin/Repair Instructions
Transit bus repair to the defroster unit to add an additional temp sensor to have a back up for temperature controls.
SC-21-082
Service Bulletin/Repair Instructions
Transit bus repair to horn, the horn relay is retrofitted in this document with a improved relay design.
SC-21-008
Service Bulletin/Repair Instructions
Transit bus drive axle retrofit to replace a lock washer on the transmission.
SC-21-020
Service Bulletin/Repair Instructions
Transit vehicle software update to the body controller and vehicle controller. Improving visibility on the dash to LV battery voltage and ABS on the dash will flash when active.
SC-20-155
Service Bulletin/Repair Instructions
Transit bus repair to a coolant line under the rear hatch. New part in document is a molded hose to prevent hose from chaffing on the rear hatch.
SC-21-019
Service Bulletin/Repair Instructions
Transit vehicle repair instructions for replacing a ride height manifold due to EMI sensor failures.
SC-20-126
Service Bulletin/Repair Instructions
Transit bus repair to replace the pressure switch with a sealed version to prevent unintended shifts to neutral.
SC-21-002
Service Bulletin/Repair Instructions
Transit bus hvac software update as the vendor found a bug inwhich the heater could run with out running the fan tripping the heating safety switch fault.
SC-21-029
Service Bulletin/Repair Instructions
Transit bus repair instructions for the duo drive axle in the event one of the wheelends fail this document supplements the rebuild.
SC-20-150
Service Bulletin/Repair Instructions
Transit bus repair to the compartment hatches over each of the wheel wells. The gas strut mounts for the hatches are now fastened with hardware to prevent debonding of the brackets.
SC-20-168
Service Bulletin/Repair Instructions
Transit bus repair instruction for the charge blade on the roof of the bus to supplement the repair manual to ensure connections have not come loose.
SC-20-164
Service Bulletin/Repair Instructions
Transit bus software update to the drivetrain controller. Revised controls for start up procedure, revised transmission oil pump speed for cold starts and resolved some other bugs.
SC-20-163
Service Bulletin/Repair Instructions
Transit bus software update to increase regen in default drive and low modes to promote efficient driving. Recalibrating acceleration limiting to better achieve acceleration targets.
SC-19-124
Service Bulletin/Repair Instructions
Transit bus repair to modify the plumbing of the hill hold solenoid to see slightly more pressure.
SC-20-082
Service Bulletin/Repair Instructions
Transit bus repair to the defroster ducting hoses, adds fasteners to prevent ducting from slipping off.
SC-20-147
Service Bulletin/Repair Instructions
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
SC-20-081
Service Bulletin/Repair Instructions
Transit bus rear interlock solenoid retrofit to install sealed solenoid to reduce damage from road grime.
SC-20-064
Service Bulletin/Repair Instructions
Transit bus repair to the aux heat convectors to secure wiring harness, it was found the previous adhesive material used would debond when heated.
SC-20-085
Service Bulletin/Repair Instructions
Transit bus repair to the side windows due to water ingress between window and body.
SC-20-034
Service Bulletin/Repair Instructions
Transit bus repair to the ADA ramp as the ramp was not deploying to ground level.
SC-20-133
Service Bulletin/Repair Instructions
The reason for this software update is to the vehicle controller to the latest software version.
SC-20-091
Service Bulletin/Repair Instructions
The reason for this software update is to update various controllers to the latest state of the art software. This will improve vehicle up-time, reduce driver interactions with the doors, and improve diagnostic fault handling. All the included Proterra Catalyst 800V vehicles require a change to the software/configuration for the following items: - Body Controller - Vehicle Controller - HVAC Inverter
SC-20-050
Service Bulletin/Repair Instructions
This procedure updates the overhead charge switch to the correct labeling.
SC-20-074
Service Bulletin/Repair Instructions
This retrofit adds reflective tape to the front of the bus to comply with California state regulations.
SC-20-084
Service Bulletin/Repair Instructions
This retrofit removes an unnecessary bleed line in the coolant system that may lead to air entrapment and reduced efficiency of the cooling system.
SC-20-092
Service Bulletin/Repair Instructions
Transit bus software update to the HVAC VFD Inverter, software patch to reduce the max operation to prevent overcurrent faults.
SC-20-061
Service Bulletin/Repair Instructions
This retrofit replaces the shims on the side windows to obtain an improved portal seal to prevent leakage.
SC-20-022
Service Bulletin/Repair Instructions
Updating the defroster software to regulate temperature and mode more accurately.
SC-19-161
Service Bulletin/Repair Instructions
Transit bus repair to reduce or eliminate power steering noise on the 35' buses.
SC-20-038
Service Bulletin/Repair Instructions
Routine software update to controllers on Catalyst 800V. Includes changes to DWP/Dash Software, Body Controller and Vehicle Controller.
SC-20-016
Service Bulletin/Repair Instructions
This procedure updates the battery management system software to the latest version, addressing diagnostic accuracy and general bug fixes.
SC-20-001
Service Bulletin/Repair Instructions
Transit bus repair to the coolant reservoir to prevent damage to the expansion tanks on the roof.
SC-20-017
Service Bulletin/Repair Instructions
This procedure relocates the parking brake pressure switch to prevent unintended shifts to neutral.
SC-20-011
Service Bulletin/Repair Instructions
Transit bus software upgrade to the body, vehicle and dash controllers to improve diagnostic fault handling, remove unused parameters to simplify EEPROMs.
SC-19-123
Service Bulletin/Repair Instructions
Transit bus software update to the HVAC provided by the vendor due to the ability to heat with no cabin fan which results in the heater safety switch faulting.
SC-19-139
Service Bulletin/Repair Instructions
This campaign corrects a supplier issue with the wiring of current transducers in the high voltage junction box.
SC-19-133
Service Bulletin/Repair Instructions
This campaign updates the Grayson battery thermal management system to the latest version for improved performance.
SB-19-87
Service Bulletin/Repair Instructions
This retrofit installs a resistor in parallel with the ADA Alarm to prevent it from sounding when the ADA Ramp is not deployed.
SC-19-95
Service Bulletin/Repair Instructions
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 Software, Powertrain Controller, DWP/Dash Software, and Body Controller (ZR)
SB-19-32
Service Bulletin/Repair Instructions
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, possibly causing a hazard on the road. Proterra issued the service bulletin to replace the clamshell brackets and latches with an improved design.
SC-19-58
Service Bulletin/Repair Instructions
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.
SC-19-72
Service Bulletin/Repair Instructions
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 disconnected, possibly causing a hazard on the road. Proterra issued the service bulletin to replace the clamshell brackets and latches with an improved design.
SC-19-84
Service Bulletin/Repair Instructions
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.
SC-19-82
Service Bulletin/Repair Instructions
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 to turn off. Proterra issued this service bulletin to update the software that will make SOC calculations more accurate and prevent loss of power to the low voltage system.
SC-19-69
Service Bulletin/Repair Instructions
This procedure changes the wiring for the radiator for improved reliability.
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.