2006 CHEVROLET SILVERADO wheel size

If you will be pulling a trailer that, when loaded, will
weigh more than 5,000 lbs (2 270 kg) be sure to use a
properly mounted weight-distributing hitch and sway
control of the proper size. This equipment is very
important for proper vehicle loading and good handling
when driving. Always use a sway control if the trailer
will weigh more than these limits. You can ask a
hitch dealer about sway controls.
Fifth Wheel and Gooseneck Trailering
Notice:Pulling a fth-wheel trailer with a vehicle
that is equipped with the SS trim package could
damage the vehicle. Do not pull a fth-wheel trailer
with a vehicle equipped with the SS trim package.
Fifth wheel and gooseneck trailers can be used with
many pickup models. These trailers place a larger
percentage of the weight (kingpin weight) on the tow
vehicle than conventional trailers. Make sure this weight
does not cause the vehicle to exceed GAWR or GVWR.
Fifth wheel or gooseneck kingpin weight should be
15 to 25 percent of the trailer weight up to the maximum
amount specied in the trailering chart for your vehicle.
See “Weight of the Trailer” in this section for more
information.
The hitch should be located in the pickup bed so that
it’s centerline is over or slightly in front of the rear
axle. Take care that it is not so far forward that it will
contact the back of the cab in sharp turns.This is especially important for short box pickups.
Trailer pin box extensions and sliding fth wheel hitch
assemblies can help this condition. There should
be at least six inches of clearance between the top of
the pickup box and the bottom of the trailer shelf
that extends over the box.
Make sure the hitch is attached to the tow vehicle frame
rails. Do not use the pickup box for support.
Safety Chains
You should always attach chains between your vehicle
and your trailer. Cross the safety chains under the
tongue of the trailer to help prevent the tongue from
contacting the road if it becomes separated from
the hitch. Instructions about safety chains may be
provided by the hitch manufacturer or by the trailer
manufacturer. If you are towing a trailer up to 5,000 lbs
(2 271 kg) with a factory-installed step bumper, you
may attach the safety chains to the attaching points on
the bumper. If you are towing a trailer up to your
vehicle’s trailer rating limit you may attach the safety
chains to the attaching point on the hitch platform. If you
are towing with an aftermarket hitch follow the trailer
or hitch manufacturer’s recommendation for attaching
safety chains. Always leave just enough slack so
you can turn with your rig. Never allow safety chains to
drag on the ground.
4-85

Bulb Replacement..........................................5-62
Halogen Bulbs..............................................5-62
Headlamps..................................................5-62
Front Turn Signal, Sidemarker and Daytime
Running Lamps.........................................5-64
Roof Marker Lamps......................................5-66
Center High-Mounted Stoplamp (CHMSL)
and Cargo Lamp.......................................5-67
Pickup Box Identication and Fender
Marker Lamps...........................................5-69
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps.........................................5-69
License Plate Lamp......................................5-71
Replacement Bulbs.......................................5-72
Windshield Wiper Blade Replacement..............5-73
Tires..............................................................5-74
Tire Sidewall Labeling...................................5-75
Tire Terminology and Denitions.....................5-78
Ination - Tire Pressure.................................5-81
Dual Tire Operation.......................................5-83
Tire Inspection and Rotation...........................5-83
When It Is Time for New Tires.......................5-86
Buying New Tires.........................................5-87Different Size Tires and Wheels......................5-88
Uniform Tire Quality Grading..........................5-89
Wheel Alignment and Tire Balance..................5-90
Wheel Replacement......................................5-90
Tire Chains..................................................5-92
If a Tire Goes Flat........................................5-93
Changing a Flat Tire.....................................5-94
Removing the Spare Tire and Tools................5-95
Removing the Flat Tire and Installing
the Spare Tire..........................................5-99
Secondary Latch System..............................5-109
Storing a Flat or Spare Tire and Tools...........5-112
Spare Tire.................................................5-116
Appearance Care..........................................5-116
Cleaning the Inside of Your Vehicle...............5-116
Fabric/Carpet..............................................5-118
Leather......................................................5-118
Instrument Panel, Vinyl, and Other
Plastic Surfaces.......................................5-119
Care of Safety Belts....................................5-119
Weatherstrips.............................................5-119
Washing Your Vehicle..................................5-120
Cleaning Exterior Lamps/Lenses....................5-120
Section 5 Service and Appearance Care
5-2

Tire Size
The following examples show the different parts of a
tire size.
(A) Passenger (P-Metric) Tire:The United States
version of a metric tire sizing system. The letter P as the
rst character in the tire size means a passenger
vehicle tire engineered to standards set by the U.S. Tire
and Rim Association.(A) Light Truck (LT-Metric) Tire:The United States
version of a metric tire sizing system. The letters LT as
the rst two characters in the tire size means a light
truck tire engineered to standards set by the U.S. Tire
and Rim Association.
(B) Tire Width:The three-digit number indicates the
tire section width in millimeters from sidewall to sidewall.
(C) Aspect Ratio:A two-digit number that indicates
the tire height-to-width measurements. For example, if
the tire size aspect ratio is 75, as shown in item C of
the light truck (LT-Metric) tire illustration, it would mean
that the tire’s sidewall is 75% as high as it is wide.
(D) Construction Code:A letter code is used to
indicate the type of ply construction in the tire. The
letter R means radial ply construction; the letter D means
diagonal or bias ply construction; and the letter B means
belted-bias ply construction.
(E) Rim Diameter:Diameter of the wheel in inches.
(F) Service Description:The service description
indicates the load range and speed rating of a tire.
The load index can range from 1 to 279. Speed ratings
range from A to Z. Passenger (P-Metric) Tire
Light Truck (LT-Metric) Tire
5-77

Buying New Tires
GM has developed and matched specic tires for your
vehicle. The original equipment tires installed on
your vehicle, when it was new, were designed to meet
General Motors Tire Performance Criteria Specication
(TPC spec) system rating. If you need replacement
tires, GM strongly recommends that you get tires with
the same TPC Spec rating. This way, your vehicle
will continue to have tires that are designed to give the
same performance and vehicle safety, during normal
use, as the original tires.
GM’s exclusive TPC Spec system considers over a
dozen critical specications that impact the overall
performance of your vehicle, including brake system
performance, ride and handling, traction control, and tire
pressure monitoring performance. GM’s TPC Spec
number is molded onto the tire’s sidewall by the
tire manufacturer. If the tires have an all-season tread
design, the TPC spec number will be followed by an MS
for mud and snow. SeeTire Sidewall Labeling on
page 5-75for additional information.{CAUTION:
Mixing tires could cause you to lose control
while driving. If you mix tires of different sizes,
brands, or types (radial and bias-belted tires),
the vehicle may not handle properly, and you
could have a crash. Using tires of different
sizes, brands or types may also cause damage
to your vehicle. Be sure to use the same size,
brand, and type tires on all wheels.
Your vehicle may have a different size spare
than the road tires (those originally installed
on your vehicle). When new, your vehicle
included a spare tire and wheel assembly with
a similar overall diameter as your vehicle’s
road tires and wheels, so it is all right to drive
on it. Because this spare was developed for
use on your vehicle, it will not affect vehicle
handling.
5-87

{CAUTION:
If you use bias-ply tires on your vehicle, the
wheel rim anges could develop cracks after
many miles of driving. A tire and/or wheel
could fail suddenly, causing a crash. Use only
radial-ply tires with the wheels on your vehicle.
If you must replace your vehicle’s tires with those that
do not have a TPC Spec number, make sure they
are the same size, load range, speed rating, and
construction type (radial and bias-belted tires) as your
vehicle’s original tires.
Your vehicle’s original equipment tires are listed on the
Tire and Loading Information Label. This label is
attached to the vehicle’s center pillar (B-pillar). See
Loading Your Vehicle on page 4-48, for more information
about the Tire and Loading Information Label and its
location on your vehicle.
Different Size Tires and Wheels
If you add wheels or tires that are a different size than
your original equipment wheels and tires, this may
affect the way your vehicle performs, including its
braking, ride and handling characteristics, stability, and
resistance to rollover. Additionally, if your vehicle
has electronic systems such as, anti-lock brakes,
traction control, and electronic stability control, the
performance of these systems can be affected.
{CAUTION:
If you add different sized wheels, your vehicle
may not provide an acceptable level of
performance and safety if tires not
recommended for those wheels are selected.
You may increase the chance that you will
crash and suffer serious injury. Only use GM
specic wheel and tire systems developed for
your vehicle, and have them properly installed
by a GM certied technician.
SeeBuying New Tires on page 5-87andAccessories
and Modications on page 5-4for additional information.
5-88

Tire Chains
{CAUTION:
If your vehicle has dual wheels or P265/75R16,
LT265/75R16, P265/70R17 or P275/55R20 size
tires, do not use tire chains. They can damage
your vehicle because there is not enough
clearance. Tire chains used on a vehicle
without the proper amount of clearance can
cause damage to the brakes, suspension or
other vehicle parts. The area damaged by the
tire chains could cause you to lose control of
your vehicle and you or others may be injured
in a crash.
Use another type of traction device only if its
manufacturer recommends it for use on your
vehicle and tire size combination and road
conditions. Follow that manufacturer’s
instructions. To help avoid damage to your
vehicle, drive slowly, readjust or remove the
device if it is contacting your vehicle, and do
not spin your vehicle’s wheels.
If you do nd traction devices that will t,
install them on the rear tires.Notice:If your vehicle does not have dual wheels
and is equipped with a tire size other than
P265/75R16, LT265/75R16, P265/70R17 or
P275/55R20, use tire chains only where legal and
only when you must. Use chains that are the proper
size for your tires. Install them on the tires of the
rear axle. Don’t use chains on the tires of the front
axle. Tighten them as tightly as possible with
the ends securely fastened. Drive slowly and follow
the chain manufacturer’s instructions. If you can
hear the chains contacting your vehicle, stop
and retighten them. If the contact continues, slow
down until it stops. Driving too fast or spinning the
wheels with chains on will damage your vehicle.
5-92

Spare Tire
Your vehicle, when new, had a fully-inated spare tire.
A spare tire may lose air over time, so check its
ination pressure regularly. SeeInation - Tire Pressure
on page 5-81andLoading Your Vehicle on page 4-48
for information regarding proper tire ination and loading
your vehicle. For instruction on how to remove, install
or store a spare tire, seeRemoving the Flat Tire
and Installing the Spare Tire on page 5-99andStoring
a Flat or Spare Tire and Tools on page 5-112.
Your vehicle may have a different size spare tire than
the road tires originally installed on your vehicle.
This spare tire was developed for use on your vehicle,
so it is all right to drive on it. If your vehicle has
four-wheel drive and the different size spare tire is
installed, keep the vehicle in two-wheel drive.
Notice:If your vehicle has four-wheel drive and the
different size spare tire is installed on your vehicle,
do not drive in four-wheel drive until you can
have your at tire repaired and/or replaced. You
could damage your vehicle, and the repair costs
would not be covered by your warranty. Never use
four-wheel drive when the different size spare
tire is installed on your vehicle.After installing the spare tire on your vehicle, you should
stop as soon as possible and make sure the spare
tire is correctly inated. Have the damaged or at road
tire repaired or replaced as soon as you can and
installed back onto your vehicle. This way, the spare tire
will be available in case you need it again.
Do not mix tires and wheels of different sizes, because
they will not t. Keep your spare tire and its wheel
together. If your vehicle has a spare tire that does not
match your vehicle’s original road tires and wheels
in size and type, do not include the spare in the
tire rotation.
Appearance Care
Cleaning the Inside of Your Vehicle
Your vehicle’s interior will continue to look its best if
it is cleaned often. Although not always visible, dust and
dirt can accumulate on your upholstery. Dirt can
damage carpet, fabric, leather, and plastic surfaces.
Regular vacuuming is recommended to remove particles
from your upholstery. It is important to keep your
upholstery from becoming and remaining heavily soiled.
Soils should be removed as quickly as possible. Your
vehicle’s interior may experience extremes of heat
that could cause stains to set rapidly.
5-116

Setting the Time
Radios with Radio Data Systems (RDS).........3-71
Radios without Radio Data Systems (RDS).....3-71
Sheet Metal Damage.....................................5-122
Shifting Into Park (P).......................................2-50
Shifting Out of Park (P)...................................2-52
Signals, Turn and Lane-Change.......................... 3-7
Sliding Rear Windows.....................................2-17
Snow Plow....................................................4-54
Spare Tire....................................................5-116
Installing....................................................5-99
Removing...................................................5-95
Storing.....................................................5-112
Specications, Capacities...............................5-134
Speedometer..................................................3-32
Starting Your Engine.......................................2-22
Steering........................................................4-12
Steering Wheel Controls, Audio.......................3-127
Steering Wheel, Tilt Wheel................................. 3-6
Storage Areas
Center Console Storage Area........................2-76
Coinholder(s)..............................................2-75
Cupholder(s)...............................................2-75
Front Storage Area......................................2-76
Glove Box..................................................2-75
Stuck in Sand, Mud, Ice, or Snow.....................4-46
Sun Visors.....................................................2-17
Sunroof.........................................................2-78
Swing-Out Windows........................................2-17T
Tachometer....................................................3-32
Tailgate.........................................................2-14
Taillamps
Turn Signal, Stoplamps and Back-up Lamps....5-69
Theft-Deterrent, Radio....................................3-126
Theft-Deterrent Systems...................................2-18
Content Theft-Deterrent................................2-18
Passlock
®...................................................2-19
Tilt Wheel........................................................ 3-6
Tires.............................................................5-74
Aluminum or Chrome-Plated
Wheels, Cleaning...................................5-121
Buying New Tires........................................5-87
Chains.......................................................5-92
Changing a Flat Tire....................................5-94
Cleaning...................................................5-122
Different Size..............................................5-88
Dual Tire Operation.....................................5-83
If a Tire Goes Flat.......................................5-93
Ination - Tire Pressure................................5-81
Inspection and Rotation................................5-83
Installing the Spare Tire................................5-99
Removing the Flat Tire.................................5-99
Removing the Spare Tire and Tools...............5-95
Secondary Latch System............................5-109
Spare Tire................................................5-116
Storing a Flat or Spare Tire and Tools..........5-112
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