• Do not tow a trailer at all during the first 1,000 miles(1 600 km) your new vehicle is driven. Your engine,axle or other parts could be damaged.• Then, during the first 500 miles (800 km) that youtow a trailer, do not drive over 50 mph (80 km/h)and do not make starts at full throttle. Thishelps your engine and other parts of your vehiclewear in at the heavier loads.• Obey speed limit restrictions when towing a trailer.Do not drive faster than the maximum postedspeed for trailers, or no more than 55 mph(90 km/h), to save wear on your vehicle’s parts.Three important considerations have to do with weight:• the weight of the trailer• the weight of the trailer tongue• and the total weight on your vehicle’s tiresWeight of the TrailerHow heavy can a trailer safely be? It should neverweigh more than 1,000 lbs (450 kg). These are totalmaximum weights including the load. But even that canbe too heavy.The STS-V is not rated or designed to tow any trailer.It depends on how you plan to use your rig. Forexample, speed, altitude, road grades, outsidetemperature and how much your vehicle is used to pulla trailer are all important. It can also depend on anyspecial equipment that you have on your vehicle,and the amount of tongue weight the vehicle can carry.See “Weight of the Trailer Tongue” later in thissection for more information.Maximum trailer weight is calculated assuming only thedriver is in the tow vehicle and it has all the requiredtrailering equipment. The weight of additional optionalequipment, passengers and cargo in the tow vehiclemust be subtracted from the maximum trailer weight.4-41
