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July 22, 2026 Service bulletin

State of Health (SOH): An estimate of battery health that is updated as the vehicle learns from operating...

Toyota technical service bulletin T-TT-0806-26 for 2026 Toyota C-HR, 2026 Toyota RAV4 Plug-In Hybrid and 2026 Toyota BZ and others.

Bulletin number
T-TT-0806-26 (T-TT-0806-26)
Component
Engine
Summary
State of Health (SOH): An estimate of battery health that is updated as the vehicle learns from operating and charging conditions over time. Distance Since Last Update: Indicates the distance accumulated since the last SOH calculation. A default mileage value of 40,727 at SOH 100% may be displayed until sufficient vehicle learning is completed. Once SOH value updates from 100%, the Distance Since Last Update value will re-set to 0 miles. Both SOH and Distance Since Last Update values will continue to update as the vehicle continues to learn.

Owners of these vehicles have filed 5 complaints in the engine category.

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