2004 Lexus LS 430 User Guide - Page 57
2004 Lexus LS 430 Manual
Page 57 highlights
KEYS AND DOORS Adjusting the volume of beeps Unlocking the trunk lid 11L340 11L238a You can adjust the volume of the beeps which confirm the locking or unlocking the doors or remind you when the doors are not completely closed. Turn the volume adjustment knob counterclockwise to increase the volume or clockwise to decrease it. The beep sound is completely deactivated when you turn the knob clockwise until you hear a click. " 1 Type A 2 Type B When you keep the button pushed for about 1 second, you can unlock the trunk lid.* One beep sounds. This function does not work when the ignition switch is in the "ON" position. INFORMATION The volume of the smart key system alarm is not adjustable. NOTE: * The operation method can be changed. Ask your Lexus dealer for details. 39