2009 Buick Enclave Owner's Manual - Page 265

Driving Your Vehicle • Obey speed limit restrictions when towing a trailer. Three important considerations have to do with weight: 4-25 • The vehicles can tow in D (Drive). Shift the transmission to a lower gear if the transmission shifts too often under heavy loads and/or hilly conditions. See "Tow/Haul Mode" later in this section. • The weight of the trailer. • The weight of the trailer tongue. • And the weight on the vehicle's tires tongue weight the vehicle can carry. See "Weight of the Trailer Tongue" later in this section for more information. Maximum trailer weight is calculated assuming only the driver is in the tow vehicle and it has all the required trailering equipment. The weight of additional optional equipment, passengers and cargo in the tow vehicle must be subtracted from the maximum trailer weight. Use the following chart to determine how much the vehicle can weigh, based upon the vehicle model and options. • The vehicle is designed primarily as a passenger and load carrying vehicle. If a trailer is towed, the vehicle will require more frequent maintenance due to the additional load. Weight of the Trailer How heavy can a trailer safely be? It depends on how the rig is used. For example, speed, altitude, road grades, outside temperature and how much the vehicle is used to pull a trailer are all important. It can depend on any special equipment on the vehicle, and the amount of Vehicle Maximum Trailer Weight *GCWR Front-Wheel Drive 2,000 lbs (907 kg) 7,500 lbs (3 402 kg) Front-Wheel Drive, V92 Trailer Towing Package 4,500 lbs (2 041 kg) 9,500 lbs (4 309 kg) All-Wheel Drive 2,000 lbs (907 kg) 7,700 lbs (3 493 kg) All-Wheel Drive, V92 Trailer Towing Package 4,500 lbs (2 041 kg) 9,700 lbs (4 400 kg) *The Gross Combination Weight Rating (GCWR) is the total allowable weight of the completely loaded vehicle and trailer including any passengers, cargo, equipment and conversions. The GCWR for the vehicle should not be exceeded.