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April 11, 2022 Service bulletin

One or more of the following conditions: ?Diagnostic Trouble Code (DTC) B15A804 is present in current or...

Lexus technical service bulletin L-SB-0036-21 Rev for 2020-2022 Lexus ES350, 2020-2022 Lexus ES Hybrid and 2021-2022 Lexus ES250 and others.

Bulletin number
L-SB-0036-21 Rev
Component
Engine and engine cooling
Summary
TSB: Some 2020 model year ES 350, ES 300h, UX 200, and UX 250h vehicles may exhibit one or more of the following conditions: ?Diagnostic Trouble Code (DTC) B15A804 is present in current or history. ?Red SOS LED stays on after bulb check. ?Lexus app does not accept the activation code. ?Lexus app is inoperative. ?SOS call center does not receive the vehicle?s location in a timely manner. ?Lexus app shows an error 42 when trying to execute a command. ?Unable to remote start the vehicle with the key fob (if equipped). ?Unable to subscribe to remote services. ?Unable to activate Wi-Fi. ?Destination Assist is inoperative Some 2020 ? 2021 model year ES 350, ES 300h, UX 200, and UX 250h vehicles may exhibit one or more of the following conditions: ?DTC B15A804 is present in current or history. ?Red SOS LED stays on after bulb check. ?Lexus App is inoperative. ?Unable to subscribe to remote services. ?Unable to activate Wi-Fi. ?Depleted 12V vehicle battery when in IG-OFF. Some 2020 ? 2021 model year ES 350, ES 300h, UX 200, and UX 250h and 2021 model year ES 250 vehicles may exhibit one or more of the following conditions: ?Depleted 12V vehicle battery when in IG-OFF. Some 2020 ? 2021 model year ES 350, ES 300h, UX 200, and UX 250h and 2021 model year ES 250 vehicles may exhibit one or more of the following conditions: ?Remote Engine Start inoperative (fob and app). ?Remote Engine Start inoperative (app only). ?B15CC49 backup battery malfunction. ?Power Door Lock inoperative (app and fob). Some 2020 ? 2022 model year ES 350, ES 300h, UX 200, and UX 250h, 2021 ? 2022 model year ES 250 vehicles may exhibit one or more of the following conditions: ?Connected Services inoperative. ?Safety Connect calls not completing intermittently. ?DCM signal strength grayed OUT on head unit with strike through. DCM reset and firmware update is now available to address these conditions.

Owners of these vehicles have filed 1 complaints in the engine category.

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