2007 GMC Canyon Owner's Manual - Page 245

Four-Wheel-Drive Vehicles steps. On automatic transmission vehicles, use an adequate clamping device to ensure that the front wheels are locked into the straight position. {CAUTION: Shifting a four-wheel-drive vehicle's transfer case into NEUTRAL can cause your vehicle to roll even if the transmission is in PARK (P) for an automatic transmission, or if your vehicle is in gear, for a manual transmission. You or others could be injured. Make sure the parking brake is firmly set before you shift the transfer case to NEUTRAL. Use the following procedure to tow your vehicle from the rear: 1. Drive the vehicle onto the dolly. 2. Firmly set the parking brake. See Parking Brake on page 2-32 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. For manual transmission vehicles, make sure the wheels are straight before proceeding to the next 5. Shift the transfer case to NEUTRAL. See Four-Wheel Drive on page 2-28 for more information. 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 2-28. 4-43