2005 Lexus GX 470 Owners Manual - Page 504

DRIVING TIPS Connecting a trailer Stop your vehicle and a trailer in line and perform the following: 1. Put the rear height control air suspension in the "LO" (low) mode. Turn the ignition switch off or push the "HEIGHT CONTROL OFF" switch to turn off the rear height control air suspension. 2. Connect a trailer. 3. Turn the ignition switch on or push the "HEIGHT CONTROL OFF" switch to turn on the rear height control air suspension. Select the "N" (normal) mode with the height select switch. 5. Wait for about 20 seconds until the rear vehicle height is lowered by the automatic leveling function. 6. Make sure the hitch is disconnected. If not, raise the hitch higher and repeat steps 2 through 5. 7. Move the vehicle forward in the "LO" (low) mode where the hitch does not touch anything in the "N" (normal) mode. 8. Put the rear height control air suspension in the "N" (normal) mode. Pre-towing safety check D Check that your vehicle remains level when a loaded or unloaded trailer is hitched. Do not drive if the vehicle has an abnormal nose-up or nose-down condition, and check for improper tongue load, overload, worn suspension or other possible causes. D Make sure the trailer cargo is securely loaded so that it cannot shift. D Check that your rear view mirrors conform to any federal, state/provincial or local regulations. If they do not, install required rear view mirrors appropriate for towing purposes. Disconnecting a trailer Stop your vehicle and a trailer in line and perform the following: 1. Put the rear height control air suspension in the "LO" (low) mode. (Make sure the vehicle height is in the "LO" (low) mode by pushing the height select switch on the "B" side.) 2. Turn the ignition switch off or push the "HEIGHT CONTROL OFF" switch to turn off the rear height control air suspension. 3. Set the supporting leg of a trailer on the ground and raise the hitch by 100 mm (4 in.). 4. Turn the ignition switch on or push the "HEIGHT CONTROL OFF" switch to turn on the rear height control air suspension. 479