Toyota 89983-48080 Firmware for the Highlander Hybrid
A catalog reference for Toyota 89983-48080 and calibration 899834808000, listed in Highlander service bulletins.
Toyota 89983-48080 corresponds to the full calibration identifier 899834808000. Toyota service records list that calibration as a previous version in bulletins covering the 2006 and 2007 Highlander, including the Highlander Hybrid.
Service-record context
The calibration appears as a previous ID in Toyota service bulletin EG030-07, whose listed vehicle scope is the 2006–2007 Highlander HV. It also appears as a previous ID in T-TCI-2777, which lists the 2006–2007 Highlander. Those model listings describe each bulletin’s scope rather than confirming fitment for every vehicle in it.
Because this ID is identified as a previous calibration, it should not be credited with improvements associated with the updated revisions discussed in those bulletins. The available records do not establish the specific controller, system function, or bulletin symptoms for this calibration.