1999 Lexus LX 470 Owners Manual - Page 371
1999 Lexus LX 470 Manual
Page 371 highlights
f = The mode can be selected. = The mode cannot be selected. Low mode At vehicle stoppage Under about 30 km/h (19 mph) About 30 km/h (19 mph) or over f Normal mode f f f High mode f f activated. In the following cases the active height control suspension does not operate even if the above conditions are all met. D The brake pedal has been depressed for longer than about 5 seconds with the vehicle stopped. D The suspension fluid temperature is lower than -30 _C (-22 _F). If the engine is warmed up, the suspension fluid temperature will be raised as the inside of the engine compartment becomes warmer. Then the active height control suspension becomes operable. D Driving on bumpy roads, which may cause the suspension to fully elongate. D The steering wheel is operated abruptly more than 3/4 turns with center differential lock system