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Home >> Lexus >> 2012 >> LS 460L AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 18 (Smart Access System (Keyless Entry) (Diagnostics & Symptom Tests)) >> Smart Access System With Push-Button Start >> Symptom Tests >> Entry Answer-back Buzzer does not Sound >> Description

Entry Answer-back Buzzer does not Sound: Description

WARNING: This page is about a different car, the 2012 Lexus LS 460. However, it is still accessible from the selected car via links, so may be relevant.

The smart access system uses the wireless door lock buzzer to perform various vehicle exterior warnings. When each warning's conditions are met, the certification ECU sends a buzzer signal to the front light ECU, and the wireless door lock buzzer sounds.

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