2012 GMC Canyon Owner's Manual - Page 306

10-70 Vehicle Care { WARNING Getting under a vehicle when it is jacked up is dangerous. If the vehicle slips off the jack you could be badly injured or killed. Never get under a vehicle when it is supported only by a jack. 3. Turn the wheel wrench counterclockwise to loosen all the wheel nuts. Do not remove the wheel nuts yet. { WARNING Raising the vehicle with the jack improperly positioned can damage the vehicle and even make the vehicle fall. To help avoid personal injury and vehicle damage, be sure to fit the jack lift head into the proper location before raising the vehicle. Front Position 4. Position the jack under the vehicle, as shown, for the front or rear locations.