TSIB 26-02
Service Bulletin/Repair Instructions
Bulletin describing the proper de-aeration for Allison EGEN Flex Hybrid coolant loops.
Vehicle report
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.
TSIB 26-02
Bulletin describing the proper de-aeration for Allison EGEN Flex Hybrid coolant loops.
ITS60830
Instructions to modify ECP & MCP pump connectors to prevent water intrusion
ITS61122
Instruction to Service for updating the battery program on certain ELFA2 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.
ITS61015
Instruction to Service for inspection and correction of side console illumination lamps.
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.