2008 GMC SIERRA Owner's Manual

Page 481 of 578

GMC SIERRA 2008  Owners Manual {CAUTION:
Using the wrong replacement wheels, wheel
bolts, or wheel nuts on your vehicle can be
dangerous. It could affect the braking and
handling of your vehicle, make your tires lose
air and make y

Page 482 of 578

GMC SIERRA 2008  Owners Manual Tire Chains
{CAUTION:
If your vehicle has dual wheels or P265/65R18,
P275/55R20 or LT265/70R17 size tires, do not
use tire chains. They can damage your vehicle
because there is not enough clearance. T

Page 483 of 578

GMC SIERRA 2008  Owners Manual If a Tire Goes Flat
It is unusual for a tire to blowout while you are driving,
especially if you maintain your vehicle’s tires properly.
If air goes out of a tire, it is much more likely to leak out

Page 484 of 578

GMC SIERRA 2008  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. SeeHazard Warning Flashers
on page 3-8for more inf

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GMC SIERRA 2008  Owners Manual When your vehicle has a �at tire, use the following
example as a guide to assist you in the placement of
the wheel blocks.
The following information will tell you next how to use
the jack and change a

Page 486 of 578

GMC SIERRA 2008  Owners Manual A. Wing Nut Retaining
Wheel Blocks
B. Wheel Blocks
C. Wing Nut Retaining
Tool KitD. Tool Kit
E. Jack
F. KnobA. Wing Nut Retaining
Tool Kit
B. Tool Kit
C. Wheel BlocksD. Jack
E. Knob Regular Cab
Extend

Page 487 of 578

GMC SIERRA 2008  Owners Manual For regular cab models, the equipment you will need is
behind the passenger’s seat. For extended and crew
cab models, the equipment is on the shelf behind the
passenger’s side second row seat.
1.

Page 488 of 578

GMC SIERRA 2008  Owners Manual 2. Assemble the wheel wrench (H) and the two jack
handle extensions (I) as shown.
3. Insert the hoist end
(open end) (F) of the
extension through the
hole (G) in the rear
bumper.
Do not use the chisel