2011 Toyota Tundra Double Cab Owners Manual - Page 315

2-5. Driving information CAUTION n When towing a trailer Toyota recommends trailers with brakes that conform to any applicable federal and state/provincial regulations. l If the gross trailer weight exceeds unbraked TWR, trailer brakes are required. Toyota recommends trailers with brakes that conform to all applicable federal and state/provincial regulations. l Never tap into your vehicle's hydraulic system, as this will lower the vehicle's braking effectiveness. l 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 into another lane. 2 When driving NOTICE n When installing a trailer hitch Use only the position recommended by your Toyota dealer. Do not install the trailer hitch on the bumper; this may cause body damage. n Do not directly splice trailer lights Do not directly splice trailer lights. Directly splicing trailer lights may damage your vehicle's electrical system and cause a malfunction. n When towing a fifth wheel trailer Be careful not to hit the cabin or bed with the trailer while making a sharp turn. 287