2012 Buick LaCrosse Owner's Manual - Page 422

10-96 Vehicle Care Dinghy Towing from the Rear Dolly Towing from the Front (Front-Wheel Drive) 4. Turn the ignition to ACC/ ACCESSORY and shift the transmission to N (Neutral). See Ignition Positions (Key Access) on page 9‑16 or Ignition Positions (Keyless Access) on page 9‑18. 5. Release the parking brake only after the vehicle being towed is firmly attached to the towing vehicle. When towing the vehicle for extended periods of time, start the vehicle as often as possible to prevent battery drain. This should be done when the tow vehicle is parked. The vehicle was not designed to be towed from the rear with all four wheels on the ground. Vehicles with front-wheel drive can be dolly towed from the front. Use the following procedure to dolly tow the vehicle from the front: 1. Attach the dolly to the tow vehicle following the dolly manufacturer's instructions. 2. Drive the front wheels onto the dolly. 3. Shift the transmission to P (Park).