Toyota 895364101000.cuw Transmission Shift Calibration

895364101000.cuw is a Toyota transmission control calibration associated with automatic transmission shift quality. Toyota service records list calibration 895364101000 as a previous transmission control module calibration in bulletins covering the 2008 and 2009 Avalon.

The transmission controller uses its calibration to manage shift behavior as driving conditions change. That behavior affects how the vehicle transitions between gears and how those shifts feel to the driver. The catalog entry 89536-41010 identifies the related part-number family for this firmware record.

What the shift-quality bulletins mean

Toyota bulletins T-SB-0050-09 and T-TCI-3113 address shift quality and list 895364101000 as a previous calibration. The updated calibration discussed in each bulletin is the revision intended to address the documented concern. The previous calibration itself should not be credited with that improvement.

In practical terms, a shift-quality concern relates to how a transmission changes gears rather than simply whether it changes gears. The service records establish the topic and controller, but they do not identify a specific shift symptom or the exact change made to this calibration.

The Avalon model years listed are the scope of the bulletins, not proof that every 2008 or 2009 Avalon uses this identifier. The calibration ID is useful when distinguishing the previous software from the revisions covered by those service records.