GMC 2010 Savana 1500 Cargo Owner's Manual page 350

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.
WARNING:
{
Raising your 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.
5. Raise the vehicle by turning the wheel wrench
clockwise. Raise the vehicle far enough off the
ground so there is enough room for the spare
tire to fit.
6-88
7. Take flat tire off of the mounting surface.
6. Remove all the
wheel nuts.