GMC HUMMER EV 2022 Owner's Manual page 345

344 Vehicle Care
3. Turn the wheel wrench counterclockwise
to loosen all the wheel nuts, but do not
remove them 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.
Warning
Lifting a vehicle and getting under it to
do maintenance or repairs is dangerous
without the appropriate safety equipment
and training. If a jack is provided with
the vehicle, it is designed only for
changing a flat tire. If it is used for
anything else, you or others could be
badly injured or killed if the vehicle slips
off the jack. If a jack is provided with the
vehicle, only use it for changing a
flat tire.
4. Position the jack lift head at the jack
position nearest the flat tire.
5. Attach the jack handle extension to the
jack by sliding the hook through the end
of the jack.