2009 GMC Acadia Owner's Manual - Page 276

4-24 Driving Your Vehicle Towing the Vehicle From the Rear Towing a Trailer { CAUTION The driver can lose control when pulling a trailer if the correct equipment is not used or the vehicle is not driven properly. For example, if the trailer is too heavy, the brakes may not work well - or even at all. The driver and passengers could be seriously injured. The vehicle may also be damaged; the resulting repairs would not be covered by the vehicle warranty. Pull a trailer only if all the steps in this section have been followed. Ask your dealer/retailer for advice and information about towing a trailer with the vehicle. To identify the trailering capacity of the vehicle, read the information in "Weight of the Trailer" that appears later in this section. Notice: Towing the vehicle from the rear could damage it. Also, repairs would not be covered by the vehicle warranty. Never have the vehicle towed from the rear. Do not tow the vehicle from the rear.