2002 Lexus GS 430 Owners Manual - Page 205

STARTING AND DRIVING ELECTRONIC THROTTLE CONTROL SYSTEM The electronic throttle control system always maintains appropriate engine output in relation to the accelerator opening in all driving conditions. In the power mode, the "ECT PWR" light in the instrument cluster is on and the transmission is shifted up at higher vehicle speeds and shifted down more responsively than in the normal mode. To return to the normal mode, push the driving pattern selector switch lightly on the "SNOW" side. Snow mode: For slippery road surfaces such as in snow. In this mode, the spinning of the rear wheels is controlled appropriately. 31G027a When you push the driving pattern selector switch on the "SNOW" side, the snow mode is turned on and the "ECT SNOW" light in the instrument cluster comes on. To return to the normal mode, push the driving pattern selector switch on the "SNOW" side again. When you turn the ignition switch off in the snow mode, the mode automatically changes to the normal mode. " 1 Power position 3 Snow position 2 Normal position The electronic throttle control system has 3 modes: Normal, Power and Snow modes. Normal mode: For ordinary driving, Lexus recommends that you use the normal mode to improve fuel economy. Power mode: For more powerful acceleration and sporty driving. 188