2005 Chevrolet Colorado Owner's Manual - Page 252

6. Release the parking brake only after the vehicle being towed is firmly attached to the tow vehicle. 7. Turn the ignition to LOCK. If the tow vehicle will not be started or driven for six weeks or more, remove the battery cable from the negative terminal (post) of the battery to prevent your battery from draining while towing. After towing see "Shifting Out of NEUTRAL" under Four-Wheel Drive on page 2-25. Four-Wheel-Drive Vehicles Dolly Towing Front Towing (Front Wheels Off the Ground) Two-Wheel-Drive Vehicles Notice: If you tow a two-wheel-drive vehicle with the rear wheels on the ground, the transmission could be damaged. The repairs would not be covered by your warranty. Never tow your vehicle with the rear wheels on the ground. Two-wheel-drive vehicles should not be towed with the rear wheels on the ground. Two-wheel-drive transmissions have no provisions for internal lubrication while being towed. To dolly tow a two-wheel-drive vehicle, you must tow the vehicle with the rear wheels on the dolly. See "Rear Towing (Rear Wheels Off the Ground)" later in this section for more information. 4-52 Use the following procedure to dolly tow your vehicle from the front: 1. Drive the vehicle onto the dolly. 2. Firmly set the parking brake. See Parking Brake on page 2-29 for more information. 3. Put an automatic transmission in PARK (P) or a manual transmission in FIRST (1). 4. Follow the dolly manufacturer's instructions to attach and secure the vehicle being towed to the dolly and then the loaded dolly to the tow vehicle. Make sure the wheels are straight before towing.