2003 Lexus GX 470 Owners Manual - Page 813

STARTING AND DRIVING NOTICE Use the "LO" mode when the vehicle is stopped. Otherwise, when the vehicle speed exceeds about 12 km/h (7 mph), "N" mode is selected automatically. So be careful when you drive in any place where the overhead height is limited. In the following cases, the rear height control suspension will not operate. D The underbody of the vehicle has touched the surface on bumpy roads. D The area around the rear suspension is coated with ice. If the vehicle is moved to its usual location or the ice is removed and the height select switch is pressed, the vehicle height control cannot be operated. In this case, turn off and restart the engine, then push the control switches. (b) Vehicle height mode changing condition To change the vehicle height, it is necessary to meet the following conditions. D The engine should be running. D The height control "OFF" indicator light should go off. D When selecting a mode, there is a vehicle speed limit. Refer to the following table. f = The mode can be selected.  = The mode cannot be selected. "LO" mode Under about 12 km/h (7 mph) Under about 30 km/h (19 mph) About 30 km/h (19 mph) or over f   "N" mode f f f "HI" mode f f  (c) Vehicle height adjustment " 1 Higher 2 Lower To change the mode, push the height select switch on either side of "Y" (higher) or "B" (lower). 316