2012 GMC Canyon Owner's Manual - Page 323

Vehicle Care 3. Turn the engine off and firmly set the parking brake. See Parking Brake on page 9‑41. 4. Securely attach the vehicle being towed to the tow vehicle. 5. Shift the transfer case to N (Neutral). See "Shifting into N (Neutral)" under Four-Wheel Drive on page 10‑30. 6. Turn the ignition to LOCK/OFF and remove the key - the front wheels will still turn. 7. Release the parking brake only after the vehicle being towed is firmly attached to the towing vehicle. After towing see "Shifting Out of N (Neutral)" under Four-Wheel Drive on page 10‑30. If the vehicle being towed 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 the battery from draining. 10-87 Dolly Towing Front Towing (Front Wheels Off the Ground) - Two‐Wheel‐Drive Vehicles { WARNING Shifting a full‐time four‐wheel‐ drive vehicle's transfer case into N (Neutral) can cause the vehicle to roll even if the automatic transmission is in P (Park) or the manual transmission is in any gear. You or others could be injured. Make sure the parking brake is firmly set before the transfer case is shifted to N (Neutral). Notice: If a two-wheel-drive vehicle is towed with the rear wheels on the ground, the transmission could be damaged. The repairs would not be covered by the vehicle warranty. Never tow the vehicle with the rear wheels on the ground.