2009 Toyota Sienna Owners Manual - Page 259

2-5. Driving information Hitch Trailer hitch assemblies have different weight capacities established by the hitch manufacturer. Even though the vehicle may be rated for towing a higher weight, the operator must never exceed the maximum weight rating specified for the trailer hitch. n Before towing l Ensure that your vehicle's tires are properly inflated. (→P. 463) l Trailer tires should be inflated according to the trailer manufacturer's recommendation. l All trailer lights must work in order to be legal. l Confirm all lights work each time you connect them. l Check that your vehicle remains level when a loaded or unloaded trailer is hitched. Do not drive if the vehicle is not level, and check for improper tongue load, overloading, worn suspension, or other possible causes. l Make sure the trailer cargo is securely loaded. l Check that your rear view mirrors conform to any federal, state/provincial or local regulations. If they do not, install rear view mirrors appropriate for towing purposes. n Break-in schedule Toyota recommends that you do not use a new vehicle or a vehicle with any new power train components (engine, transmission, differential, wheel bearings, etc.) to tow a trailer for the first 500 miles (800 km) of driving. n Maintenance l If you tow a trailer, your vehicle will require more frequent maintenance due to the additional load. (See "Scheduled Maintenance Guide" or "Owner's Manual Supplement".) l Retighten the fixing bolts of the towing ball and bracket after approximately 600 miles (1000 km) of trailer towing. 2 When driving 231