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Home >> Acura >> 2021 >> RDX Base >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Security System / Keyless Entry System - Testing & Troubleshooting >> Description & Operation >> Keyless Access System Description - Components >> Engine Start/Stop Switch
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Engine Start/Stop Switch

Pressing the engine start/stop button changes the vehicle mode from OFF (LOCK), ACCESSORY, ON, or START mode. The engine start/stop switch also includes an LF antenna. When operating the backup function, the engine start/stop switch receives the immobilizer signal from the remote, and sends an immobilizer signal to the body control module.