2004 Lexus RX 330 Owners Manual - Page 521

STARTING AND DRIVING In the following cases, there is a problem somewhere in the electronically modulated air suspension, in which case the "N" mode is automatically selected. Although there is no problem to continue driving normally, have the electronically modulated air suspension checked by your Lexus dealer as soon as possible. D The height control "OFF" indicator light does not come on when the ignition switch is turned on. D The height control "OFF" indicator light blinks. (g) Operating noise of the electronically modulated air suspension You may hear an operating noise in the following cases. There is no problem in the electronically modulated air suspension. D Selecting vehicle height with the height select switch D Adjusting vehicle height according to the number of occupants or the luggage load D Changing vehicle height by selecting the easy access mode when the engine is stopped D Changing vehicle height by selecting the easy access mode when the vehicle speed exceeds 12 km/h (8 mph) D Changing the vehicle height by selecting the "HI" mode when the vehicle speed exceeds 50 km/h (31 mph) or driving at a speed of 30 km/h (19 mph) for 10 seconds or more D Lowering the vehicle's height automatically when the vehicle is moving at high speed D Returning the vehicle height after high speed driving 498