2007 Toyota Sienna Owners Manual - Page 424

07 SIENNA_U (L/O 0612) Total trailer weight Tongue load Never load the trailer with more weight in the back than in the front. About 60% of the trailer load should be in the front half of the trailer and the remaining 40% in the rear. HITCHES D Toyota recommends removing the trailer hitch whenever you are not towing a trailer to reduce the possibility of additional damage caused by the hitch if your vehicle is struck from behind. After removing the hitch, seal any mounting holes in the vehicle body to prevent entry of pollutants such as exhaust fumes, dirt, water, etc. Tongue load Total trailer weight 100 = 9 to 11% (∗ 1) or 15% (∗ 2) D If you wish to install a trailer hitch, you should consult with your Toyota dealer. NOTICE Do not use axle−mounted hitches as they can cause damage to the axle housing, wheel bearings, wheels or tires. Also, never install a hitch which may interfere with the normal function of an Energy Absorbing Bumper, if so equipped. BRAKES AND SAFETY CHAINS D Use only a hitch recommended by the D The trailer cargo load should be distributed so that the tongue load is 9 to 11% for weight carrying hitch (∗1) or 15% for weight distributing hitch (∗2) of the total trailer weight, not exceeding the maximum load of the following. Weight carrying hitch 158 kg (350 lb.) Weight distributing hitch 238 kg (525 lb.) hitch manufacturer and the one which conforms to the total trailer weight requirement. D The hitch must be bolted securely to the vehicle frame and installed according to the hitch manufacturer's instructions. D The hitch ball and king pin should have a light coat of grease. D Toyota recommends trailers with brakes that conform to any applicable federal and state/provincial regulations. 424 2007 SIENNA from Oct. '06 Prod. (OM45437U)