TSB: Some 2017 model year Highlander and Sienna vehicles may exhibit a MIL ?ON? condition with Diagnostic Trouble Code (DTC) P211904 ? Throttle Actuator ?A? Control Throttle Body Range/Performance System Internal Failure present. The Engine Control Module/Powertrain Control Module (ECM/PCM) logic has been modified to reduce the possibility of this condition. APPLICABLE WARRANTY: ? This repair is covered under the Toyota Federal Emission Warranty. This warrantyis in effect for 96 months or 80,000 miles, whichever occurs first, from the vehicle?sin-service date. ? Warranty application is limited to occurrence of the specified condition described in this bulletin.