2003 Toyota 4Runner Owners Manual - Page 998

'03 4Runner_U (L/O 0301) D Your vehicle is equipped with a wire harness stored in the rear end under body. Some models are fitted with a socket for trailer lights under the rear bumper. Use either of them to connect and operate the trailer lights. However, the trailer lights must comply with federal, state/provincial and local regulations. See your local recreational vehicle dealer or rental agency for the correct type of wiring and relays for your trailer. Check for correct operation of the turn signals and stop lights each time you hitch up. Direct splicing may damage your vehicle's electrical system and cause a malfunction of your lights. The towing connector can be also connected to the trailer brake and trailer sub battery. BREAK-IN SCHEDULE 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 "Scheduled Maintenance Guide" or "Owner's Manual Supplement". DISCONNECTING A TRAILER (models with rear height control air suspension) 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 " Ɲ" 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. D Retighten all fixing bolts of the towing ball and bracket after approximately 1000 km (600 miles) of trailer driving. CONNECTING A TRAILER (models with rear height control air suspension) 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. D Toyota recommends that you do not tow a trailer with a new vehicle or a vehicle with any new power train component (engine, transmission, differential, wheel bearing, etc.) for the first 800 km (500 miles) of driving. 268 2003 4RUNNER from JAN. '03 Prod. (OM35806U)