2009 Lexus LX 570 Owners Manual - Page 245

2-4. Using other driving systems n Extra high mode If the vehicle becomes stuck or the Crawl Control system requests the vehicle height be raised, extra high mode may be automatically selected when the vehicle height is in high mode with the four-wheel drive control switch in the "L4" position. The vehicle height is raised to 0.8 in. (20 mm) higher than the high mode height, or slightly higher. l Extra high mode will change back to high mode when: • The vehicle speed exceeds 6 mph (10 km/h) • The four-wheel drive control switch is shifted to "H4". l If you pull the height select switch to "∨" when in extra high mode, normal mode is selected. l Extra high mode cannot be manually selected. n Turning off the 4-Wheel AHC l The system will remain off until the height control "OFF" switch is pushed again, 2 When driving even if the "ENGINE START STOP" switch is turned off. l Even if the system is turned off, the system automatically modulated if the vehi- cle speed exceeds following. • 19 mph (30 km/h) with high or low mode • 50 mph (80 km/h) with normal mode n If the vehicle travels at high speed while in normal mode The vehicle's height will automatically lower by 0.8 in. (20 mm) at the front and 0.6 in. (15 mm) at the rear. If the vehicle's speed decreases, the vehicle's height automatically returns to normal. If the vehicle is loaded with heavy items, a shock may be felt at this time. n When driving on bumpy roads with the four-wheel drive control switch in "L4" High mode is automatically selected. 247