2007 Toyota Tundra Owners Manual - Page 503

07 04.26 BRAKES AND SAFETY CHAINS D Toyota recommends trailers with brakes that conform to any applicable federal and state/provincial regulations. between the towing vehicle and the trailer. Leave sufficient slack in the chain for turns. The chain should cross under the trailer tongue to prevent the tongue from dropping to the ground in case it becomes damaged or separated. For correct safety chain procedures, follow the hitch or trailer manufacturer's recommendations. CAUTION D If the gross trailer weight exceeds 453 kg (1000 lb.), trailer brakes are required. XS30003 D A safety chain must always be used D Never tap into your vehicle's hydraulic system as it would lower its braking effectiveness. 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. XS30004 1. Coupler 2. Trailer ball 2007 TUNDRA from Jul. '07 Prod. (OM34463U) 485