GMC Sierra Denali 2014 Owner's Manual page 346

10-76 Vehicle Care
1. Jack
2. Wheel Blocks
3. Jack Handle
4. Jack Handle Extension
5. Wheel Wrench
The tools you will be using include
the jack (1), the wheel blocks (2),
the jack handle (3), the jack handle
extensions (4), and the wheel
wrench (5).
1. Do a safety check before
proceeding. See If a Tire Goes
Flat on page 10-72.
2. Remove the center cap by
placing the chisel end of the
wheel wrench in the slot on the
wheel and gently prying the
cap out.
3. Use the wheel wrench to loosen
all the wheel nuts. Turn the
wheel wrench counterclockwise
to loosen the wheel nuts. Do not
remove the wheel nuts yet.
Warning
Getting under a vehicle when it is
lifted on a jack 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 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.