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.
Vehicle report
2018 PROTERRA CATALYST
Service bulletins
73 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.
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-23-003
Service Bulletin/Repair Instructions
Repair instruction to inspect heavy duty transit vehicles for humidity in the battery pack and perform preventative maintenance.
SC-22-026
Service Bulletin/Repair Instructions
Service Bulletin for upgraded battery fans on select heavy duty electric buses. Moving to brushless fans to extend the service life of the fans.
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.
FC-22-167
Service Bulletin/Repair Instructions
Instruction to verify the BTMS chiller panels are assembled correctly, ensuring the hinge pin is secured.
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-22-155
Service Bulletin/Repair Instructions
Repair instructions for transit buses that are not TPI bodies to replace the gearbox fasteners with locking fasteners.
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.
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.
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-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-21-010
Service Bulletin/Repair Instructions
Transit bus body composite repair at the rear door if any fiberglass is delaminating.
FC-22-046
Service Bulletin/Repair Instructions
Transit bus quality check on bus bodies not produced by TPI. Inspecting the steering gear bolts to ensure torque strips are intact.
SC-21-091
Service Bulletin/Repair Instructions
Transit bus repair at the rear door, improve the securement of the edge trim.
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-21-183
Service Bulletin/Repair Instructions
Transit bus repair instructions to install a drain in the cavity where the ADA ramp sits.
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-20-174
Service Bulletin/Repair Instructions
Transit bus to the vehicles electrical and software due to the odometer losing mileage.
SB-18-28
Service Bulletin/Repair Instructions
Transit bus repair to upgrade the ABS controller to communicate with clever ITS ABS monitoring.
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-21-048
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-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-21-041
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-20-097
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-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-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-21-030
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-21-045
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-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-20-085
Service Bulletin/Repair Instructions
Transit bus repair to the side windows due to water ingress between window and body.
SC-20-025
Service Bulletin/Repair Instructions
This procedure is a updates the rooftop battery thermal management system unit brackets to a more robust design.
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-20-083
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-20-084
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-19-62
Service Bulletin/Repair Instructions
This procedure upgrades the rear flip up seat mount to a more robust design.
SC-19-161
Service Bulletin/Repair Instructions
Transit bus repair to reduce or eliminate power steering noise on the 35' buses.
SC-19-133
Service Bulletin/Repair Instructions
This campaign updates the Grayson battery thermal management system to the latest version for improved performance.
SC-19-102
Service Bulletin/Repair Instructions
This retrofit removes the 5-Position door switch and replaces it with individual front and rear door switches.
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-19-97
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)
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.
SB-19-02
Service Bulletin/Repair Instructions
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 bulletin to replace the cord grip with one with that has a water-tight fit.
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.
SB-18-95
Service Bulletin/Repair Instructions
This procedure will replace current Air Compressor and Power Steering Variable Frequency Drive EMI Filter with one of more robust design.
SC-19-67
Service Bulletin/Repair Instructions
This procedure relocates the auxiliary air tank pressure transducer and provides additional grounding for the rear air tank bracket.
SC-19-40
Service Bulletin/Repair Instructions
This procedure will upgrade the rear clearance lights to improved energy efficiency and increased longevity of the lights.
SC-19-52
Service Bulletin/Repair Instructions
This retrofit installs a diode in series with the datalogger power input to prevent voltage sags from resetting the datalogger.
SC-19-61
Service Bulletin/Repair Instructions
This updates the datalogger firmware to the latest version for improved communication.
SB-18-86
Service Bulletin/Repair Instructions
This procedure will replace current Air Compressor and Power Steering Variable Frequency Drive EMI Filter with one of more robust design.
SC-19-70
Service Bulletin/Repair Instructions
This procedure adds clips to the inverter three phase wiring to reduce EMI.
SC-19-65
Service Bulletin/Repair Instructions
This procedure provides improved grounding for the HVAC unit.
SB-19-19
Service Bulletin/Repair Instructions
This procedure checks and adjusts the front-end geometry and steering alignment for optimum performance.
SB-18-96
Service Bulletin/Repair Instructions
This procedure will modify the 5 Position Door Switch Bracket to make it index properly with the text labels on the switch panel
SB-19-25
Service Bulletin/Repair Instructions
This retrofit installs Michelin Tires 315/80R22.5 on the axles of the bus and relocates the front ABS Modulator Valves to accommodate the wider tires.
SB-18-09
Service Bulletin/Repair Instructions
This Technical Service Bulletin updates the vehicle Magnetek. This change will bring the vehicle up to the latest version of Magnetek software and improve charging performance by adding functionality for buses used at multi-charge station sites and other functional updates.
SC-19-35
Service Bulletin/Repair Instructions
This Technical Service Bulletin updates the software/configuration on the Catalyst E2 Vehicle controllers including the CCS Charger Controller, Dash, Powertrain Controller, Body Controller, and ESM. The bulletins referenced in SC-19-35's notice lines are the previous versions of the software that need to be installed before the new software is loaded on to the buses.
SB-18-74
Service Bulletin/Repair Instructions
Technical Service Bulletin Front Axle Control Arm Retrofit (RL75EC to RL82EC) was issued to replace the Control Arms on the front axle to allow a higher front axle weight.
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.