height CHEVROLET SILVERADO 2007 1.G User Guide

If you have rear drum brakes, they do not have
wear indicators, but if you ever hear a rear brake
rubbing noise, have the rear brake linings
inspected immediately. Rear brake drums should
be removed and inspected each time the tires
are removed for rotation or changing. Drum brakes
have an inspection hole to inspect lining wear
during scheduled maintenance. When you have
the front brake pads replaced, have the rear
brakes inspected, too.
Brake linings should always be replaced as
complete axle sets.
Brake Pedal Travel
See your dealer/retailer if the brake pedal does
not return to normal height, or if there is a
rapid increase in pedal travel. This could be a sign
that brake service might be required.
Brake Adjustment
Every time you make a brake stop, the brakes
adjust for wear.
Replacing Brake System Parts
The braking system on a vehicle is complex. Its
many parts have to be of top quality and work well
together if the vehicle is to have really good
braking. Your vehicle was designed and tested
with top-quality brake parts. When you replace
parts of the braking system — for example, when
the brake linings wear down and you need
new ones put in — be sure you get new approved
replacement parts. If you do not, the brakes
might not work properly. For example, if someone
puts in brake linings that are wrong for your
vehicle, the balance between the front and rear
brakes can change — for the worse. The braking
performance you have come to expect can
change in many other ways if someone puts in the
wrong replacement brake parts.
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(A) Tire Size:The tire size code is a combination
of letters and numbers used to dene a particular
tire’s width, height, aspect ratio, construction
type, and service description. See the “Tire Size”
illustration later in this section for more detail.
(B) TPC Spec (Tire Performance Criteria
Specication):Original equipment tires designed
to GM’s specic tire performance criteria have
a TPC specication code molded onto the sidewall.
GM’s TPC specications meet or exceed all
federal safety guidelines.
(C) DOT (Department of Transportation):The
Department of Transportation (DOT) code
indicates that the tire is in compliance with the
U.S. Department of Transportation Motor Vehicle
Safety Standards.
(D) Tire Identication Number (TIN):The letters
and numbers following DOT code are the Tire
Identication Number (TIN). The TIN shows
the manufacturer and plant code, tire size, and
date the tire was manufactured. The TIN is molded
onto both sides of the tire, although only one
side may have the date of manufacture.
Passenger (P-Metric) Tire
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(E) Tire Ply Material:The type of cord and
number of plies in the sidewall and under the
tread.
(F) Uniform Tire Quality Grading (UTQG):Tire
manufacturers are required to grade tires
based on three performance factors: treadwear,
traction, and temperature resistance. For more
information, seeUniform Tire Quality Grading on
page 575.
(G) Maximum Cold Ination Load Limit:
Maximum load that can be carried and the
maximum pressure needed to support that load.
For information on recommended tire pressure see
Ination - Tire Pressure on page 561and
Loading Your Vehicle on page 427.
(A) Tire Size:The tire size code is a combination
of letters and numbers used to dene a particular
tire’s width, height, aspect ratio, construction
type, and service description. See the “Tire Size”
illustration later in this section for more detail.
Light Truck (LT-Metric) Tire
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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 percent 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.
Passenger (P-Metric) Tire
Light Truck (LT-Metric) Tire
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(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.
Tire Terminology and Denitions
Air Pressure:The amount of air inside the tire
pressing outward on each square inch of the
tire. Air pressure is expressed in pounds
per square inch (psi) or kilopascal (kPa).
Accessory Weight:This means the combined
weight of optional accessories. Some examples of
optional accessories are, automatic transmission,
power steering, power brakes, power windows,
power seats, and air conditioning.
Aspect Ratio:The relationship of a tire’s height
to its width.
Belt:A rubber coated layer of cords that is
located between the plies and the tread. Cords
may be made from steel or other reinforcing
materials.Bead:The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the rim.
Bias Ply Tire:A pneumatic tire in which the plies
are laid at alternate angles less than 90 degrees
to the centerline of the tread.
Cold Tire Pressure:The amount of air pressure
in a tire, measured in pounds per square inch (psi)
or kilopascals (kPa) before a tire has built up heat
from driving. SeeInation - Tire Pressure on
page 561.
Curb Weight:This means the weight of a motor
vehicle with standard and optional equipment
including the maximum capacity of fuel, oil, and
coolant, but without passengers and cargo.
DOT Markings:A code molded into the sidewall
of a tire signifying that the tire is in compliance
with the U.S. Department of Transportation (DOT)
motor vehicle safety standards. The DOT code
includes the Tire Identication Number (TIN),
an alphanumeric designator which can also identify
the tire manufacturer, production plant, brand,
and date of production.
GVWR:Gross Vehicle Weight Rating. See
Loading Your Vehicle on page 427.
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Your dealer will know the kind of wheel you need.
Each new wheel should have the same
load-carrying capacity, diameter, width, offset and
be mounted the same way as the one it
replaces.
If you need to replace any of your wheels, wheel
bolts or wheel nuts, replace them only with
new GM original equipment parts. This way, you
will be sure to have the right wheel, wheel
bolts and wheel nuts for your vehicle.
{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 you
lose control. You could have a collision in
which you or others could be injured.
Always use the correct wheel, wheel bolts,
and wheel nuts for replacement.Notice:The wrong wheel can also cause
problems with bearing life, brake cooling,
speedometer or odometer calibration,
headlamp aim, bumper height, vehicle ground
clearance, and tire or tire chain clearance
to the body and chassis.
Whenever a wheel, wheel bolt or wheel nut is
replaced on a dual wheel setup, check the wheel
nut torque after 100, 1,000 and 6,000 miles
(160, 1 600 and 10 000 km) of driving. For proper
torque, see “Wheel Nut Torque” underCapacities
and Specications on page 620.
SeeChanging a Flat Tire on page 580for more
information.
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Rearview Mirrors......................................... 171
Reclining Seatbacks...................................... 15
Recommended Fluids and Lubricants.......... 639
Recovery Hooks.......................................... 426
Recreational Vehicle Towing........................ 442
Remote Keyless Entry (RKE) System.......... 112
Remote Keyless Entry (RKE) System,
Operation................................................. 113
Removing the Flat Tire and Installing the
Spare Tire................................................ 586
Removing the Spare Tire and Tools............ 582
Replacement Bulbs..................................... 551
Reporting Safety Defects
Canadian Government............................. 665
General Motors........................................ 665
United States Government....................... 664
Restraint System Check
Checking the Restraint Systems............... 106
Replacing Restraint System Parts After
a Crash................................................ 107
Retained Accessory Power (RAP)................ 136
Right Front Passenger Position, Safety
Belts.......................................................... 37
Roadside
Assistance Program................................. 654Rocking Your Vehicle to Get it Out.............. 425
Routing, Engine Drive Belt.......................... 643
Running the Engine While Parked............... 170
S
Safety Belt
Passenger Reminder Light....................... 251
Pretensioners............................................. 45
Reminder Light........................................ 251
Safety Belts
Care of.................................................... 604
Center Front Passenger Position......... 37, 38
Driver Position........................................... 28
How to Wear Safety Belts Properly............ 27
Questions and Answers About Safety
Belts....................................................... 26
Rear Safety Belt Comfort Guides............... 42
Rear Seat Passengers............................... 39
Right Front Passenger Position.................. 37
Safety Belt Extender.................................. 45
Safety Belt Use During Pregnancy............. 36
Safety Belts Are for Everyone.................... 22
Shoulder Belt Height Adjuster.................... 35
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Safety Warnings and Symbols......................... 4
Scheduled Maintenance............................... 627
Seatback Latches.......................................... 19
Seats
Center Seat............................................... 19
Head Restraints......................................... 18
Heated Seats............................................. 12
Manual........................................................ 9
Manual Lumbar.......................................... 11
Memory, Mirrors and Pedals...................... 13
Power Lumbar........................................... 11
Power Seats.............................................. 10
Rear Seat Operation........................... 20, 21
Reclining Seatbacks................................... 15
Seatback Latches...................................... 19
Secondary Latch System............................. 592
Securing a Child Restraint
Center Front Seat Position......................... 72
Rear Seat Position..................................... 69
Right Front Seat Position.................... 72, 78
Right Front Seat Position (Crew Cab)........ 83
Security Light.............................................. 266
Service........................................................ 488
Accessories and Modications.................. 488
Adding Equipment to the Outside of
Your Vehicle......................................... 490
California Proposition 65 Warning............. 489Service (cont.)
Doing Your Own Work............................. 489
Engine Soon Light................................... 262
Publications Ordering Information............. 666
Servicing Your Airbag-Equipped Vehicle....... 104
Sheet Metal Damage................................... 608
Shifting Into Park (P)................................... 165
Shifting Out of Park (P)............................... 167
Shoulder Belt Height Adjuster........................ 35
Signals, Turn and Lane-Change.................. 215
Sliding Rear Window, Power....................... 128
Snow Plow.................................................. 434
Spare Tire................................................... 600
Installing.................................................. 586
Removing................................................ 582
Storing..................................................... 596
Specications, Capacities............................ 620
Speedometer............................................... 250
StabiliTrak
®System..................................... 384
StabiliTrak®Indicator Light........................... 260
Starting Your Engine................................... 136
Steering...................................................... 387
Steering Wheel Controls, Audio................... 370
Steering Wheel, Tilt Wheel.......................... 214
Storage Areas............................................. 198
Cargo Management System..................... 201
Center Console Storage Area................... 199
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