Toyota Lexusc Owner's Handbook Manual page 505

STARTING AND DRIVING
This electronically modulated air suspension allows the
driver to control the vehicle's height in order to adjust for
driving conditions. Select your desired height among the
"HI" (high), "N" (normal) and "LO" (low) modes with the
height select switch.
You can turn on or off the easy access mode with the easy
access mode switch. If the engine is stopped when the easy
access mode is on, the vehicle height is lowered automatically.
486
(a) Vehicle height modes
Vehicle's height mm (in.)
"N"
-7.0 (0.3)
(50)
" "N" (normal) mode
"N" (normal) mode: The vehicle's height in this mode is
standard.
This mode is suitable for ordinary driving.
When the vehicle speed exceeds approximately 100 km/h (62
mph), the vehicle's height automatically lowers about 7 mm
(0.3 in.) from normal height to provide better stability. When the
vehicle speed reduces to under approximately 80 km/h (50
mph), the vehicle's height automatically returns to the normal
height.
Vehicle speed
km/h (mph)
80 100
(62)