2007 GMC ENVOY DENALI Owners Manual

Changing a Flat Tire
If a tire goes at, avoid further tire and wheel
damage by driving slowly to a level place.
Turn on your hazard warning ashers. See
Hazard Warning Flashers on page 170for more
information.
{CAUTION:
Changing a tire can be dangerous. The
vehicle can slip off the jack and roll over
or fall on you or other people. You and
they could be badly injured or even killed.
Find a level place to change your tire.
To help prevent the vehicle from moving:
1. Set the parking brake rmly.
2. Put the shift lever in PARK (P).
CAUTION: (Continued)
CAUTION: (Continued)
3. If you have a four-wheel-drive vehicle,
be sure the transfer case is in a drive
gear — not in NEUTRAL.
4. Turn off the engine and do not restart
while the vehicle is raised.
5. Do not allow passengers to remain in
the vehicle.
6. Put the wheel blocks at the front and
rear of the tire farthest away from
the one being changed. That would
be the tire on the other side, at the
opposite end of the vehicle.
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When your vehicle has a at tire, use the following
example as a guide to assist you in the placement
of wheel blocks.
The following information will tell you how to use
the jack and change a tire.Removing the Spare Tire and Tools
The jacking equipment needed to remove the
spare tire is stored under the rear seat. To release
the jack from its holder, turn the knob on the
jack counterclockwise to lower the jack head.
SeeRear Seat Operation on page 18for more
information.
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The tools you will be using include the wheel
wrench (A), wheel blocks (B), extension(s)
(socket end) (C), handle (jack end) (D),
and jack (E).
The following instructions explain how to remove
the underbody-mounted spare underneath
your vehicle.
Notice:If you remove or restow a tire from/to
the storage position under the vehicle when
it is supported by a jack, you could damage the
tire and/or your vehicle. Always remove or
restow a tire when the vehicle is on the ground.A. Wheel Wrench
B. Hoist Shaft
C. Extension
D. Retainer
E. Spare or Flat Tire
(Valve Stem
Pointed Up)
1. Open the liftgate. SeeLiftgate/Liftglass
on page 106for more information.
2. Attach the wheel wrench (A) to the
extension (C).
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3. Insert the socket
end of the
extension (C)
on a 45 degree
angle downward
into the hoist drive
shaft hole.
It is exposed when the rear gate is open and
is just above the rear bumper. Be sure the
socket end of the extension (C) connects
to the hoist shaft.
4. Turn the wheel wrench counterclockwise to
lower the spare tire. Keep turning the wheel
wrench until the spare tire can be pulled
out from under the vehicle.
If the spare tire does not lower to the ground,
the secondary latch is engaged causing
the tire not to lower. SeeSecondary Latch
System on page 475for more information.
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5. Tilt the retainer at the end of the cable when
the tire has been completely lowered, and pull
it through the wheel opening.
6. Pull the tire out from under the vehicle.
Notice:If you drive away before the spare tire
or secondary latch system cable has been
reinstalled, you could damage your vehicle.
Always reinstall this cable before driving your
vehicle.
7. Put the spare tire near the at tire.
Removing the Flat Tire and
Installing the Spare Tire
1. If your vehicle has a wheel cap that covers
the wheel nuts, position the chisel end of the
wheel wrench in the notch and pry it off.
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2. Using the wheel
wrench, loosen all
the wheel nuts.
Do not remove
them yet.
3. Turn the jack adjusting knob clockwise by
hand to raise the jack lift head.
4. Place the handle, extension, and wheel
wrench onto the jack.A. Front Frame/Rear Axle
B. Jack
C. Handle
D. Extension
E. Wheel Wrench
5. Place the jack in the appropriate position
nearest the at tire.
Front PositionRear Position
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{CAUTION:
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.
{CAUTION:
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 t the jack lift head
into the proper location before raising
the vehicle.6. Raise the vehicle by turning the jack handle
clockwise. Raise the vehicle far enough off
the ground so there is enough room for
the spare tire to t.
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7. Remove all the
wheel nuts and take
off the at tire.
{CAUTION:
Rust or dirt on the wheel, or on the parts
to which it is fastened, can make the
wheel nuts become loose after time.
The wheel could come off and cause
anaccident. When you change a wheel,
remove any rust or dirt from the places
where the wheel attaches to the vehicle.
CAUTION: (Continued)
CAUTION: (Continued)
In an emergency, you can use a cloth or a
paper towel to do this; but be sure to use
a scraper or wire brush later, if needed, to
get all the rust or dirt off.
8. Remove any rust or
dirt from the wheel
bolts, mounting
surfaces, and
spare wheel.
9. Place the spare tire on the wheel-mounting
surface.
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