1999 Toyota 4Runner Owners Manual - Page 193

4RUNNER ( ) D Never tow a trailer without using a safety chain securely attached to both the trailer and the vehicle. If damage occurs to the coupling unit or hitch ball, there is danger of the trailer wandering over into another lane. TIRES BREAK- IN SCHEDULE PRE- TOWING SAFETY CHECK 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. MAINTENANCE 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 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". D Make sure the trailer cargo is securely loaded so that it cannot shift. D Ensure that your vehicle's tires are properly inflated. See Chapter 7- 2 for instructions. D Check that your rear view mirrors conform to any applicable federal, state/ provincial or local regulation. If not, install the rear view mirrors required for towing purpose. D The trailer tires should be inflated to the pressure recommended by the trailer manufacturer in respect to the total trailer weight. TRAILER LIGHTS D Retighten all fixing bolts of the towing ball and bracket after approximately 1000 km (600 miles) of trailer driving. D 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. 193