June 29, 2018 Service bulletin

MIL ?ON? condition with Diagnostic Trouble Code (DTC) P3190 (Poor Engine Power)

Lexus technical service bulletin L-SB-0023-18 for 2016-2018 Lexus RX Hybrid.

Bulletin number: L-SB-0023-18
Component: Electrical system
Summary: TSB: Some 2016 ? 2018 model year RX 450h and 2018 model year RX 450h L vehicles may exhibit a MIL ?ON? condition with Diagnostic Trouble Code (DTC) P3190 (Poor Engine Power). This condition may occur when operating the vehicle in high altitude and high temperature conditions. The engine control module/ECM (SAE Term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition occurring. Follow the Repair Procedure in this bulletin to address this condition.

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

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