2011 Lexus IS 350 Owners Manual - Page 532

6-2. Customization Item Function Switching operation when the vehicle is stationary Default setting On On Variable depending on the vehicle speed On Level 3 4.9 ft. (150 cm) 15 seconds On Customized setting Off Off Windshield wipers and washer (→P. 169) Drip prevention function Time elapsed before the drip prevention function operates Back sensor operation display and buzzer Buzzer volume Distance which a sensor detects Time elapsed before lights turn off Operation when the doors are unlocked 3 seconds Off Level 1 to 5 2.0 ft. (60 cm) 7.5 seconds 30 seconds Off Intuitive parking assist (→P. 179) Illumination (→P. 315) Operation after the "ENGINE START STOP" switch is turned OFF Front footwell lights Shift lever light Outer foot light On On On On On Off Off Off Off Off Seat belt reminder (→P. 463) Vehicle speed linked seat belt reminder buzzer 544