2010 Lexus GS 350 Owners Manual - Page 632

5-2. Steps to take in an emergency Trunk Turn the mechanical key clockwise to open. Changing "ENGINE START STOP" switch modes and starting the engine STEP 1 STEP 2 Put the shift lever in "P" and apply the brakes. Touch the Lexus emblem side of the electronic key to the "ENGINE START STOP" switch. An alarm will sound to indicate that the start function cannot detect the electronic key that is touched to the "ENGINE START STOP" switch if any of the doors is opened and closed while the key is touched to the switch. STEP 3 To change the "ENGINE START STOP" switch modes: Within 10 seconds of the buzzer sounding, release the brake pedal and press the "ENGINE START STOP" switch. Modes can be changed each time the switch is pressed. (→P. 136) To start the engine: Press the "ENGINE START STOP" switch within 10 seconds after the buzzer sounds, keeping the brake pedal depressed. If the "ENGINE START STOP" switch still cannot be operated, contact your Lexus dealer. 572 GS_G_U (OM30C80U) June 29, 2011 10:21 am