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Home >> Lexus >> 2010 >> IS 350C >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Smart Access System (Keyless Entry) (Diagnostics & Symptom Tests) >> Smart Access System With Push-Button Start (For Entry Function) >> Entry Interior Alarm does not Sound >> Description
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Entry Interior Alarm does not Sound: Description

The smart access system with push-button start uses the combination meter buzzer to perform various vehicle interior warnings. When the conditions for each warning are met, the certification ECU (smart key ECU assembly) sends a buzzer signal to the combination meter assembly, and the combination meter buzzer sounds.