2005 Lexus GX 470 Owners Manual - Page 452

STARTING AND DRIVING NOTICE D When jacking up or installing tire chains, be sure to turn off the rear height control air suspension with the "HEIGHT CONTROL OFF" switch and stop the engine. Otherwise, the vehicle height may change because of the automatic leveling function resulting in accident. D If your vehicle must be towed, put the vehicle height in the "N" mode and turn off the rear height control air suspension. Otherwise, the vehicle height may change because of the automatic leveling function resulting in accident. D If your vehicle gets ditched, turn off the rear height control air suspension with the "HEIGHT CONTROL OFF" switch. Otherwise, the vehicle height may change because of the automatic leveling function resulting in accident. 427