Technical 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.
ITS61772
Service Bulletin/Repair Instructions
Instructions for uploading the latest software version. When the Voltage Regulator frequency on the PWM enable signal is not 500hz, the regulator can cause CAN errors on whatever CAN line it is installed onto, causing some programming procedures to fail.
ITS61518
Service Bulletin/Repair Instructions
Instructions to rework overhead cables by adding a moisture barrier to mitigate water intrusion.
ITS61489
Service Bulletin/Repair Instructions
Instructions to update V2 traction inverters with new bootloader.
251030 Battery email
Other
A consumer notification indicating one of New Flyer's battery suppliers is exiting the market.
TSIB 25-07
Service Bulletin/Repair Instructions
This Bulletin is being issued due to New Flyer & MCI have received reports that customers are re-torquing high-voltage (HV) connections during preventative maintenance inspections as outlined in the Preventive Maintenance section of the Service or Maintenance manual. This Bulletin reminds operators that the inspection procedure is visual only and does not require retorque unless the witness marks indicate the fasteners have loosened.
ITS61338
Service Bulletin/Repair Instructions
Instructions to Service for an update to the HV DC charge box contactors to replace the existing GIGAVAC with new RINCON contactor.
TSIB 25-04
Service Bulletin/Repair Instructions
This Technical Service Information Bulletin has been issued to remind customers that fill pressure must not exceed 25 psi to avoid injury or damage components during filling and deaeration of the ESS Battery Thermal Management System.
ITS61268
Service Bulletin/Repair Instructions
Instruction to Service to update vehicles with ELFA 3 to provide improved BMS response to overcharging and other functional safety mechanisms, more robust detection of failure modes through DTCs, Battery Data Recorder (BDR) capabilities, and streamlined flashing processes.
ITS61250
Service Bulletin/Repair Instructions
Instruction to Service for updating ESS drains, remove internal mechanism, re-install and add duckbill. Remove the ESS breather, extract the internal mechanism, remove the three desiccant bags and reinstall the breather. 6 string buses.
ITS61249
Service Bulletin/Repair Instructions
Instruction to Service for updating ESS drains, remove internal mechanism, re-install and add duckbill. Remove the ESS breather, extract the internal mechanism, remove the three desiccant bags and reinstall the breather. 5 string buses.
ITS61123
Service Bulletin/Repair Instructions
Instruction to Service for updating the battery program on certain ELFA3 buses for Improved BMS response to overcharging and other functional safety mechanisms, more robust detection of failure modes through DTCs, improving Battery Data Recorder (BDR) capabilities, streamlined flashing processes, and logic improvements for better integration with application.
ITS61089
Service Bulletin/Repair Instructions
Service instruction to verify welds on PEM mounts.
ITS61032
Service Bulletin/Repair Instructions
Instruction to Service for replacing incorrect hardware on "Infotainment" monitors with shorter hardware.
ITS61009
Service Bulletin/Repair Instructions
Instructions to Service for correcting the orientation of the negative contactor in the rear HV fuse box.
ITS60986
Service Bulletin/Repair Instructions
Instruction to Service to rearrange connectors to avoid potential interference.
ITS60888
Service Bulletin/Repair Instructions
Instruction to Service ITS60888 to improve sealing in the S/S HV charge box.
ITS60853
Service Bulletin/Repair Instructions
Instruction to Service 60853 to rework a ground cable for the DC link distribution box.
ITS-60815
Service Bulletin/Repair Instructions
Instructions to Service to install upgraded ESS drain valves - 5 string system.
ITS-60816
Service Bulletin/Repair Instructions
Instruction to Service to install enhanced ESS drain valves - 6 string system.
ITS-60823
Service Bulletin/Repair Instructions
Instruction to Service to enhance sealing of overhead charge cables.
ITS60709
Service Bulletin/Repair Instructions
Instructions to add sealing on the overhead charge rail box.
ITS60641
Service Bulletin/Repair Instructions
Instructions and PNs to install an improved Battery Thermal Management System fill decal.
ITS60628
Service Bulletin/Repair Instructions
Instruction to provide additional sealing properties at the access door on a low voltage fuse box.
ITS60598
Service Bulletin/Repair Instructions
Some standard grade electric buses have experienced nuisance tripping of the motor inverter fuse. This ITS provides instructions to upgrade the fuse
ITS-60756
Service Bulletin/Repair Instructions
On certain buses, mounting rivnuts for securing the ESS and inverter rack may have insufficient crimping. ITS-60756 provides instructions for checking/correcting the rivnut crimping as required.
TSIB 22-08
Service Bulletin/Repair Instructions
New Flyer has issued Technical Service Information Bulletin (TSIB) 22-08, providing for the application of silicone paste onto overhead charging rails to inhibit water from collecting on the rails
ITS60468
Service Bulletin/Repair Instructions
Technical Instruction describing how to remove and replace the incorrect EPA emissions placard.