2006 CHEVROLET SILVERADO warning light

Turn Signals When Towing a Trailer
The arrows on your instrument panel will ash whenever
you signal a turn or lane change. Properly hooked up,
the trailer lamps will also ash, telling other drivers
you’re about to turn, change lanes or stop.
When towing a trailer, the arrows on your instrument
panel will ash for turns even if the bulbs on the trailer
are burned out. Thus, you may think drivers behind
you are seeing your signal when they are not. It’s
important to check occasionally to be sure the trailer
bulbs are still working.
Driving On Grades
Reduce speed and shift to a lower gearbeforeyou start
down a long or steep downgrade. If you don’t shift
down, you might have to use your brakes so much that
they would get hot and no longer work well.
If you have an automatic transmission, you can tow in
DRIVE (D). You may want to shift the transmission
to lower gear selection if the transmission shifts too often
(e.g., under heavy loads and/or hilly conditions).
You may also want to activate the tow/haul mode if the
transmission shifts too often. SeeTow/Haul Mode
Light on page 3-49.If you have a 5-speed manual transmission and you are
towing a trailer, it’s better not to use FIFTH (5) gear.
Just drive in FOURTH (4) gear (or, as you need
to, a lower gear).
If you have a 6-speed manual transmission and you are
towing a trailer, it’s better not to use SIXTH (6) gear.
Drive in FIFTH (5) gear (or, as you need to, a lower gear).
When towing at high altitude on steep uphill grades,
consider the following: Engine coolant at or near
sea level will boil at a lower temperature than at higher
altitudes. If you turn your engine off immediately
after towing at high altitude on steep uphill grades, your
vehicle may show signs similar to engine overheating.
To avoid this, let the engine run while parked, preferably
on level ground, with the automatic transmission in
PARK (P) for a few minutes before turning the engine
off. For manual transmissions, let the engine run
while parked, preferably on level ground, with the
transmission out of gear and the parking brake applied,
for a few minutes before turning the engine off.
If you do get the overheat warning, seeEngine
Overheating on page 5-37.
4-88

If your vehicle is a dual fuel tank chassis cab model,
and it runs out of fuel, refuel the front fuel tank rst
to ensure a quick restart.
Be careful not to spill fuel. Do not top off or overll the
tank and wait a few seconds after you have nished
pumping before removing the nozzle. Clean fuel
from painted surfaces as soon as possible. See
Washing Your Vehicle on page 5-120.
When replacing the fuel cap, turn it clockwise until it
clicks. It will require more effort to turn the fuel cap on
the last turn as you tighten it. Make sure the cap is
fully installed. 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.
SeeMalfunction Indicator Lamp on page 3-45.
The TIGHTEN FUEL CAP message will be displayed on
the Driver Information Center (DIC) if the fuel cap is
not properly installed. SeeDIC Warnings and Messages
on page 3-54for more information.
{CAUTION:
If a re starts while you are refueling, do not
remove the nozzle. Shut off the ow of fuel by
shutting off the pump or by notifying the
station attendant. Leave the area immediately.
Notice:If you need a new fuel cap, be sure to get
the right type. Your dealer can get one for you.
If you get the wrong type, it may not t properly.
This may cause your malfunction indicator lamp to
light and may damage your fuel tank and emissions
system. SeeMalfunction Indicator Lamp on
page 3-45.
5-11

How to Check and Add Fluid
The proper uid should be added if the level does not
reach the bottom of the diaphragm when it is in place in
the reservoir. See the instructions on the reservoir cap.
Engine Coolant
The cooling system in your vehicle is lled with
DEX-COOL®engine coolant. This coolant is designed
to remain in your vehicle for ve years or 150,000 miles
(240 000 km), whichever occurs rst, if you add only
DEX-COOL
®extended life coolant.
The following explains your cooling system and how to
add coolant when it is low. If you have a problem
with engine overheating, seeEngine Overheating on
page 5-37.A 50/50 mixture of clean, drinkable water and
DEX-COOL
®coolant will:
Give freezing protection down to−34°F (−37°C).
Give boiling protection up to 265°F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as they
should.
Notice:Using coolant other than DEX-COOL
®may
cause premature engine, heater core, or radiator
corrosion. In addition, the engine coolant may
require changing sooner, at the rst maintenance
service after each 30,000 miles (50 000 km) or
24 months, whichever occurs rst. Any repairs
would not be covered by your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your vehicle.
5-35

Brake Wear
Your vehicle has front disc brakes and may have rear
drum brakes or rear disc brakes.
Disc brake pads have built-in wear indicators that make
a high-pitched warning sound when the brake pads
are worn and new pads are needed. The sound
may come and go or be heard all the time your vehicle
is moving, except when you are pushing on the
brake pedal rmly.
{CAUTION:
The brake wear warning sound means that
soon your brakes will not work well. That
could lead to an accident. When you hear the
brake wear warning sound, have your vehicle
serviced.
Notice:Continuing to drive with worn-out brake
pads could result in costly brake repair.
Some driving conditions or climates may cause a brake
squeal when the brakes are rst applied or lightly
applied. This does not mean something is wrong with
your brakes.Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated, inspect
brake pads for wear and evenly tighten wheel nuts in
the proper sequence to GM torque specications.
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 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 of brake trouble.
Brake Adjustment
Every time you make a brake stop, your brakes adjust
for wear.
5-50

Uniform Tire Quality Grading
Quality grades can be found where applicable on the
tire sidewall between tread shoulder and maximum
section width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration (NHTSA), which grades
tires by treadwear, traction, and temperature
performance. This applies only to vehicles sold in the
United States. The grades are molded on the sidewalls
of most passenger car tires. The Uniform Tire Quality
Grading (UTQG) system does not apply to deep
tread, winter-type snow tires, space-saver, or temporary
use spare tires, tires with nominal rim diameters of
10 to 12 inches (25 to 30 cm), or to some
limited-production tires.
While the tires available on General Motors passenger
cars and light trucks may vary with respect to these
grades, they must also conform to federal safety
requirements and additional General Motors Tire
Performance Criteria (TPC) standards.
Treadwear
The treadwear grade is a comparative rating based on
the wear rate of the tire when tested under controlled
conditions on a specied government test course.
For example, a tire graded 150 would wear one and
a half (1.5) times as well on the government course as
a tire graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart signicantly from the norm
due to variations in driving habits, service practices, and
differences in road characteristics and climate.
Traction – AA, A, B, C
The traction grades, from highest to lowest, are AA, A,
B, and C. Those grades represent the tire’s ability
to stop on wet pavement as measured under controlled
conditions on specied government test surfaces of
asphalt and concrete. A tire marked C may have poor
traction performance.
Warning:The traction grade assigned to this tire is
based on straight-ahead braking traction tests, and does
not include acceleration, cornering, hydroplaning, or
peak traction characteristics.
5-89

A
Accessories and Modications............................ 5-4
Accessory Power Outlet(s)...............................3-18
Adding a Snow Plow or Similar Equipment.........4-54
Additives, Fuel................................................. 5-7
Add-On Electrical Equipment...........................5-125
Air Cleaner/Filter, Engine.................................5-25
Air Conditioning..............................3-20, 3-21, 3-24
Airbag
Off Light.....................................................3-34
Passenger Status Indicator...........................3-36
Readiness Light..........................................3-33
Airbag Sensing and Diagnostic Module (SDM)...... 7-9
Airbag System................................................1-71
Adding Equipment to Your
Airbag-Equipped Vehicle............................1-87
Airbag Off Switch........................................1-78
How Does an Airbag Restrain?......................1-76
Passenger Sensing System...........................1-80
Servicing Your Airbag-Equipped Vehicle..........1-86
What Makes an Airbag Inate?......................1-76Airbag System (cont.)
What Will You See After an Airbag Inates?....1-76
When Should an Airbag Inate?....................1-74
Where Are the Airbags?...............................1-72
Anti-Lock Brake System (ABS)........................... 4-7
Anti-Lock Brake, System Warning Light..............3-42
Appearance Care
Aluminum or Chrome-Plated Wheels.............5-121
Care of Safety Belts...................................5-119
Chemical Paint Spotting..............................5-123
Cleaning Exterior Lamps/Lenses..................5-120
Cleaning the Inside of Your Vehicle..............5-116
Fabric/Carpet............................................5-118
Finish Care...............................................5-120
Instrument Panel, Vinyl, and
Other Plastic Surfaces.............................5-119
Leather....................................................5-118
Sheet Metal Damage..................................5-122
Tires........................................................5-122
Underbody Maintenance.............................5-122
Vehicle Care/Appearance Materials...............5-123
Washing Your Vehicle.................................5-120
1

Appearance Care (cont.)
Weatherstrips............................................5-119
Windshield and Wiper Blades......................5-121
Ashtray(s)......................................................3-19
Audio System(s).............................................3-70
AM-FM Radio.............................................3-72
Audio Steering Wheel Controls....................3-127
Care of Your Cassette Tape Player...............3-128
Care of Your CD and DVD Player................3-130
Care of Your CDs and DVDs .......................3-129
Chime Level Adjustment.............................3-130
Fixed Mast Antenna...................................3-130
Radio with Cassette and CD.........................3-85
Radio with CD............................................3-74
Radio with Six-Disc CD................................3-99
Rear Seat Audio (RSA)...............................3-125
Setting the Time for Radios with
Radio Data Systems (RDS).......................3-71
Setting the Time for Radios without
Radio Data Systems (RDS).......................3-71
Theft-Deterrent Feature...............................3-126
Understanding Radio Reception...................3-128
XM™ Satellite Radio Antenna System...........3-130
Automatic Headlamp System............................3-14
Automatic Transmission
Fluid..................................................5-27, 5-30
Operation...................................................2-24
Auxiliary Roof Mounted Lamp Switch.................3-16B
Battery..........................................................5-51
Battery Warning Light......................................3-39
Before Leaving on a Long Trip.........................4-39
Brake
Anti-Lock Brake System (ABS)........................ 4-7
Emergencies................................................ 4-9
Parking......................................................2-49
System Warning Light..................................3-41
Brakes..........................................................5-48
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-9
Break-In, New Vehicle.....................................2-20
Bulb Replacement...........................................5-62
Center High-Mounted Stoplamp (CHMSL)
and Cargo Lamp......................................5-67
Front Turn Signal, Sidemarker
and Daytime Running Lamps.....................5-64
Halogen Bulbs............................................5-62
Headlamps.................................................5-62
License Plate Lamps....................................5-71
Pickup Box Identication and
Fender Marker Lamps...............................5-69
Replacement Bulbs......................................5-72
Roof Marker Lamps.....................................5-66
Taillamps, Turn Signal, Stoplamps
and Back-up Lamps.................................5-69
Buying New Tires...........................................5-87
2

C
Calibration.............................2-56, 2-58, 2-60, 2-62
California Fuel.................................................. 5-7
California Proposition 65 Warning....................... 5-4
Canadian Owners................................................ ii
Capacities and Specications..........................5-134
Carbon Monoxide...................2-14, 2-54, 4-42, 4-67
Care of
Safety Belts..............................................5-119
Your Cassette Tape Player..........................3-128
Your CD and DVD Player...........................3-130
Your CDs and DVDs ..................................3-129
Cargo Lamp...................................................3-18
Cargo Lamp Light...........................................3-49
Center Console Storage Area...........................2-76
Center Front Passenger Position, Safety Belts....1-26
Center High-Mounted Stoplamp (CHMSL)
and Cargo Lamp.........................................5-67
Chains, Tire...................................................5-92
Check
Engine Light...............................................3-45
Checking Things Under the Hood......................5-12
Chemical Paint Spotting.................................5-123
Child Restraints
Child Restraint Systems...............................1-38
Infants and Young Children...........................1-34
Lower Anchors and Tethers for Children..........1-44
Older Children.............................................1-32
Securing a Child Restraint in
a Rear Seat Position................................1-55Child Restraints (cont.)
Securing a Child Restraint in
the Center Front Seat Position...................1-57
Securing a Child Restraint in the
Right Front Seat Position (Crew Cab).........1-58
Securing a Child Restraint in
the Right Front Seat Position
(Regular and Extended Cab).............1-60, 1-66
Where to Put the Restraint...........................1-42
Chime Level Adjustment.................................3-130
Cigarette Lighter.............................................3-19
Cleaning
Aluminum or Chrome-Plated Wheels.............5-121
Exterior Lamps/Lenses................................5-120
Fabric/Carpet............................................5-118
Finish Care...............................................5-120
Inside of Your Vehicle.................................5-116
Instrument Panel, Vinyl, and
Other Plastic Surfaces.............................5-119
Leather....................................................5-118
Tires........................................................5-122
Underbody Maintenance.............................5-122
Washing Your Vehicle.................................5-120
Weatherstrips............................................5-119
Windshield and Wiper Blades......................5-121
Climate Control System...................................3-20
Dual ..........................................................3-21
Dual Automatic............................................3-24
Outlet Adjustment........................................3-29
3