One or both of the following conditions: ?Hesitation when accelerating from a stop

Bulletin number

TSB008723

Component

Engine and engine cooling: engine: engine control module (ecu/ECM)

Summary

TSB: Some 2023 model year Highlander vehicles may exhibit one or both of the following conditions: ?Hesitation when accelerating from a stop. ?Non-linear acceleration from a stop or rolling stop with steady throttle. The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been modified to address these conditions. Follow the Repair Procedure in this bulletin to address these conditions.

Owners of these vehicles have filed 28 complaints in the engine category.