1999 GMC SUBURBAN lock

5-22
Attach the wheel wrench to the jack handle extensions
(as needed). Attach the jack handle to the jack.Turn the wheel wrench clockwise to raise the jack lift
head to the lifting point.

5-23
If your vehicle has wheel
nut caps, loosen them by
turning the wheel wrench
counterclockwise. If you
have a center cap with
wheel nut caps, the wheel
nut caps are designed to
remain with the center cap.
Remove the center cap.
If the wheel has a smooth center piece, place the chisel
end of the wheel wrench in the slot on the wheel and
gently pry out.Removing the Flat Tire and Installing
the Spare Tire
1. Use the wheel wrench
to loosen all the
wheel nuts. Turn
the wheel wrench
counterclockwise to
loosen the wheel nuts.
Don't remove the
wheel nuts yet.

5-25
Front Position
Rear Position
1500 SeriesRear Position
2500 Series
2. Make sure the jack head is positioned so that the rear
axle is resting securely between the grooves that are
on the jack head. Turn the wheel wrench clockwise
to raise the vehicle. Raise the vehicle far enough off
the ground so there is enough room for the spare
tire to fit back underneath the rear of the vehicle.

5-27
5. After mounting the
spare, replace the
wheel nuts with the
rounded end of the
nuts toward the wheel.
Tighten each wheel
nut by hand using the
wheel wrench until the
wheel is held against
the hub.
Front Position
Rear Position
1500 SeriesRear Position
2500 Series
6. Turn the wheel wrench counterclockwise to lower
the vehicle. Lower the jack completely.

5-28
7. Tighten the nuts firmly in a crisscross sequence as
shown by turning the wheel wrench clockwise.
CAUTION:
Incorrect wheel nuts or improperly tightened
wheel nuts can cause the wheel to become loose
and even come off. This could lead to an accident.
Be sure to use the correct wheel nuts. If you have
to replace them, be sure to get new GM original
equipment wheel nuts.
Stop somewhere as soon as you can and have the
nuts tightened with a torque wrench to the proper
torque. See ªCapacities and Specificationsº in
the Index.
NOTICE:
Improperly tightened wheel nuts can lead to
brake pulsation and rotor damage. To avoid
expensive brake repairs, evenly tighten the
wheel nuts in the proper sequence and to the
proper torque specification.

5-30
Replace the jack, tools and spare tire lock.
A. Hoist Assembly
B. Wheel Wrench
C. Jack Handle
Extensions
D. Hoist ShaftE. Valve Stem,
Pointed Up
F. Flat or Spare Tire
G. Tire Retainer
H. Hoist Cable
To store the tools, follow these procedures.For Utility Models:
1. Put the tool kit with the jack tools and gloves in the
tool bag and place in the retaining dip under the
driver's side second seat.
2. Tighten down with the the wing nut.
3. Then, assemble wheel chocks and bottle jack
together with the wing nut and retaining hook.
4. Position behind the jack storage cover in the left rear
side panel just below the speaker and tighten,
adjusting clockwise until the jack is secured tight in
mounting bracket.
For Suburban/Yukon XL Models:
1. Return the tool kit (jack tools and gloves) to the tool bag.
2. Assemble wheel chocks and bottle jack together with
the wingnut and retaining hook.
3. Position behind the jack storage cover in the left rear
side panel just below the speaker and tighten,
adjusting clockwise until the jack is secured tight in
mounting bracket.
4. Use the retaining clip to fasten the tool kit on the
stud in the storage compartment in the rear left trim
panel and turn wingnut clockwise to secure.
5. Return the storage tray. See the jacking label for
further information.

6-6
While refueling, hang the filler cap by the tether using
the hook located on the inside of the filler door.
To remove the cap, turn it slowly to the
left (counterclockwise).
CAUTION:
If you get gasoline on yourself and then
something ignites it, you could be badly burned.
Gasoline can spray out on you if you open the
fuel filler cap too quickly. This spray can happen
if your tank is nearly full, and is more likely in
hot weather. Open the fuel filler cap slowly and
wait for any ªhissº noise to stop. Then unscrew
the cap all the way.
Be careful not to spill gasoline. Clean gasoline from
painted surfaces as soon as possible. See ªCleaning the
Outside of Your Vehicleº in the Index.

6-7
When you put the cap back on, turn it to the right
(clockwise) until you hear a clicking sound. Make sure
you fully install the cap. The diagnostic system can
determine if the fuel cap has been left off or improperly
installed. This would allow fuel to evaporate into the
atmosphere. See ªMalfunction Indicator Lampº in
the Index.
NOTICE:
If you need a new cap, be sure to get the right
type. Your dealer can get one for you. If you get
the wrong type, it may not fit properly. This may
cause your malfunction indicator lamp to light
and your fuel tank and emissions system may be
damaged. See ªMalfunction Indicator Lampº in
the Index.
Filling a Portable Fuel Container
CAUTION:
Never fill a portable fuel container while it is in
your vehicle. Static electricity discharge from the
container can ignite the gasoline vapor. You can
be badly burned and your vehicle damaged if this
occurs. To help avoid injury to you and others:

Dispense gasoline only into
approved containers.

Do not fill a container while it is inside a
vehicle, in a vehicle's trunk, pickup bed
or on any surface other than the ground.

Bring the fill nozzle in contact with the
inside of the fill opening before operating
the nozzle. Contact should be maintained
until the filling is complete.

Don't smoke while pumping gasoline.