GMC Sierra 2500 HD2022 Owner's Manual page 367

366 Vehicle Care
If the wheel has a smooth center cap,
concealing access to the wheel nuts,
place the chisel end of the wheel wrench
in the slot on the wheel, and gently pry
it out.
If the wheel s center cap does not
conceal the wheel nuts, the center cap
may remain during wheel removal. If the
removed wheel is to be stowed in the
hoist, the cap needs to be detached from
the wheel. Access the wheel from the
back side, and use a jack handle
extension to push out the center cap.
3. Use the wheel wrench and turn it
counterclockwise to loosen the wheel
nuts. Do not remove the wheel nuts yet.
Warning
To avoid personal injury and vehicle
damage, disable the power assist steps
before using a jack or placing an object
under the vehicle. See Power Assist Steps
0 31.
Front Position
4. If the flat tire is on the front of the
vehicle, position the jack under the
bracket attached to the vehicle's frame,
behind the flat tire, as shown.