2010 Chevrolet Avalanche Owner's Manual - Page 389

Four-Wheel Drive Vehicles with a Two Speed Automatic Transfer Case { WARNING: Shifting a four-wheel-drive vehicle's transfer case into N (Neutral) can cause the vehicle to roll even if the transmission is in P (Park). The driver or others could be injured. Make sure the parking brake is firmly set before the transfer case is shifted to N (Neutral). 4. Shift the transfer case to N (Neutral). See "Shifting into Neutral" under "Four-Wheel Drive" for the proper procedure to select the Neutral position for the vehicle. 5. Release the parking brake only after the vehicle being towed is firmly attached to the towing vehicle. 6. Turn the ignition to LOCK/OFF and remove the key - the steering wheel will still turn. After towing, see "Shifting Out of Neutral" under "Four-Wheel Drive" for the proper procedure to take the vehicle out of the Neutral position. Use the following procedure to dinghy tow a four-wheel drive vehicle with a two speed automatic transfer case: 1. Position the vehicle being towed behind the tow vehicle and shift the transmission to P (Park). 2. Turn the engine off and firmly set the parking brake. 3. Securely attach the vehicle being towed to the tow vehicle. 5-41