2003 Lexus GX 470 Owners Manual - Page 367

DRIVING TIPS Maintenance D If you tow a trailer, your vehicle will require more frequent maintenance due to the additional load. For this information, please refer to the scheduled maintenance information in the "Owner's Manual Supplement / Scheduled Maintenance". D Retighten all fixing bolts of the towing ball and bracket after approximately 1000 km (600 miles) of trailer driving. 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. 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. 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. 353