warning lights CHEVROLET SILVERADO 1999 1.G Owners Manual

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v
For example,
these symbols
are used on an
original battery:
CAUTION
POSSIBLE
INJURY
PROTECT
EYES BY
SHIELDING
CAUSTIC
BATTERY
ACID COULD
CAUSE
BURNS
AVOID
SPARKS OR
FLAMES
SPARK OR
FLAME
COULD
EXPLODE
BATTERY
These symbols
are important
for you and
your passengers
whenever your
vehicle is
driven:
DOOR LOCK
UNLOCK
FASTEN
SEAT
BELTS
POWER
WINDOW
AIR BAG
These symbols
have to do with
your lamps:
MASTER
LIGHTING
SWITCH
TURN
SIGNALS
PARKING
LAMPS
HAZARD
WARNING
FLASHER
DAYTIME
RUNNING
LAMPS
FOG LAMPS
These symbols
are on some of
your controls:
WINDSHIELD
WIPER
WINDSHIELD
WASHER
WINDSHIELD
DEFROSTER
REAR
WINDOW
DEFOGGER
VENTILATING
FAN
These symbols
are used on
warning and
indicator lights:
ENGINE
COOLANT
TEMP
BATTERY
CHARGING
SYSTEM
BRAKE
COOLANT
ENGINE OIL
PRESSURE
ANTI-LOCK
BRAKES
Here are some
other symbols
you may see:
FUSE
LIGHTER
HORN
SPEAKER
FUEL
Vehicle Symbols
These are some of the symbols you may find on your vehicle.

2-
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2-1
Section 2 Features and Controls
Here you can learn about the many standard and optional features on your vehicle, and information on starting,
shifting and braking. Also explained are the instrument panel and the warning systems that tell you if everything is
working properly
-- and what to do if you have a problem.
2
-2 Keys
2
-3 Rear Access Door (Extended Cab)
2
-4 Door Locks
2
-6 Keyless Entry System (If Equipped)
2
-8 Tailgate
2
-10 Theft
2
-11 Content Theft-Deterrent (If Equipped)
2
-12 Passlock

2-13 New Vehicle ªBreak-Inº
2
-13 Ignition Positions
2
-16 Starting Your Gasoline Engine
2
-19 Engine Coolant Heater (If Equipped)
2
-20 Automatic Transmission Operation
2
-24 Manual Transmission Operation
2
-27 Four-Wheel Drive (If Equipped)
2
-33 Parking Brake
2
-34 Shifting Into Park (P)
(Automatic Transmission Only)2
-37 Shifting Out of Park (P)
(Automatic Transmission)
2
-38 Parking Your Vehicle
(Manual Transmission Models Only)
2
-38 Parking Over Things That Burn
2
-39 Engine Exhaust
2
-40 Running Your Engine While You're Parked
(Automatic Transmission)
2
-41 Manual Selectable Ride (If Equipped)
2
-42 Locking Rear Axle
2
-42 Windows
2
-44 Turn Signal/Multifunction Lever
2
-51 Exterior Lamps
2
-54 Interior Lamps
2
-56 Mirrors
2
-66 Instrument Panel
2
-68 Instrument Panel Cluster
2
-70 Warning Lights, Gages and Indicators
2
-82 Message Center

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2-70
Warning Lights, Gages and Indicators
This part describes the warning lights and gages that
may be on your vehicle. The pictures will help you
locate them.
Warning lights and gages can signal that something is
wrong before it becomes serious enough to cause an
expensive repair or replacement. Paying attention to
your warning lights and gages could also save you or
others from injury.
Warning lights come on when there may be or is a
problem with one of your vehicle's functions. As you
will see in the details on the next few pages, some
warning lights come on briefly when you start the
engine just to let you know they're working. If you are
familiar with this section, you should not be alarmed
when this happens.
Gages can indicate when there may be or is a problem
with one of your vehicle's functions. Often gages and
warning lights work together to let you know when
there's a problem with your vehicle.When one of the warning lights comes on and stays on
when you are driving, or when one of the gages shows
there may be a problem, check the section that tells you
what to do about it. Please follow this manual's advice.
Waiting to do repairs can be costly
-- and even
dangerous. So please get to know your warning lights
and gages. They're a big help.
Your vehicle has a message center that works along with
the warning lights and gages. See ªMessage Centerº in
the Index.
Safety Belt Reminder Light
When the key is turned to RUN or START, a chime will
come on for about six seconds to remind people to
fasten their safety belts, unless the driver's safety belt is
already buckled.
The safety belt light will
also come on and stay on
for about 20 seconds, then
it will flash for about
55 seconds. If the driver's
belt is already buckled,
neither the chime nor the
light will come on.

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2-82
Message Center
The message center is located above the transmission
temperature gage (if equipped) on the instrument panel
cluster. It gives you important safety and maintenance
facts. When you turn the ignition on, the entire center
lights up for just a few seconds. As needed, the message
center will display one of the following messages. The
message center is capable of alternating among different
messages if needed.
BATTERY
If this message is displayed
when the engine is running,
you may have a problem
with your charging system.
The battery display will also stay on while the key is in
RUN until the engine is started.
If the message stays on after starting the engine it could
indicate a problem with the generator drive belt, or some
other charging system problem. Have it checked right
away. Driving with this message displayed could drain
your battery.If you must drive a short distance with this message
displayed, it helps to turn off all your accessories, such
as the radio and the air conditioner.
TRANS FLUID HOT
If you have an automatic transmission, you have a
transmission temperature warning display contained in
the message center.
If the transmission fluid
temperature becomes high,
the message center will
display this message.
When the transmission enters the protection mode you
may notice a change in the transmission shifting
patterns. When the transmission fluid temperature
returns to normal, the display will turn off and the
transmission shifting patterns will return to normal.

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6-29
Engine Coolant
The cooling system in your vehicle is filled with
DEX
-COOL
engine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs first, 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, see ªEngine Overheatingº in
the Index.
A 50/50 mixture of clean, drinkable water and
DEX
-COOL
coolant will:

Give freezing protection down to
-34F (-37C).

Give boiling protection up to 265F (129C).

Protect against rust and corrosion.

Help keep the proper engine temperature.

Let the warning lights and gages work as
they should.
NOTICE:
When adding coolant, it is important that you use
only DEX
-COOL (silicate-free) coolant.
If coolant other than DEX-COOL is added to the
system, premature engine, heater core or
radiator corrosion may result. In addition, the
engine coolant will require change sooner
-- at
30,000 miles (50 000 km) or 24 months,
whichever occurs first. Damage caused by the use
of coolant other than DEX
-COOL is not
covered by your new vehicle warranty.

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9-6
Inspections (Continued)
Steering 7-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Suspension 7-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Throttle System 7-24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transfer Case (Four-Wheel Drive) 7-24 . . . . . . . . . . . . . . .
Instrument Panel 2-66 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning 6-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cluster 2-66 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse Block 6-65 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Intensity Control 2-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jumper Wiring Harness 4-69 . . . . . . . . . . . . . . . . . . . . . . . .
Interior Lamps 2-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack, Tire 5-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jump Starting 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Key Lock Cylinders Service 7-20 . . . . . . . . . . . . . . . . . . . . .
Key Release Button 2-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keyless Entry System 2-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keys 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Labels
Certification 4-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Certification/Tire 4-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Parts Identification 6-63 . . . . . . . . . . . . . . . . . . . . .
Vehicle Identification Number 6-63 . . . . . . . . . . . . . . . . . . .
Lamps 2-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cargo 2-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning 6-58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dome 2-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior 2-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interior 2
-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On Reminder 2-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Latches, Seatback 1-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leaving Your Vehicle with the Engine Running 2-36 . . . . . . .
Lighter 2-64 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lights
4WD 2
-80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Bag Off 1-33, 2-71 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Bag Readiness 1-27, 2-71 . . . . . . . . . . . . . . . . . . . . . . .
Anti-Lock Brake System Warning 2-74, 4-7 . . . . . . . . . . . .
Brake System Warning 2-74 . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise 2-80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Belt Reminder 1-12, 2-70 . . . . . . . . . . . . . . . . . . . . .
Service Engine Soon 2-77 . . . . . . . . . . . . . . . . . . . . . . . . . .
Shift 2-27, 2-73 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tow/Haul 2-81 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loading Information, Truck-Camper 4-50 . . . . . . . . . . . . . . .
Loading Your Vehicle 4-46 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loading Your Vehicle for Off-Road Driving 4-17 . . . . . . . . . .
Lockout Prevention 2-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Locks
Cylinders 7
-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door 2-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Transmission Check 7-22 . . . . . . . . . . . . . . . . . . . .
Key Lock Cylinders Service 7-20 . . . . . . . . . . . . . . . . . . . .
Power Door 2-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Coolant Message 2-84, 6-31 . . . . . . . . . . . . . . . . . . . . . .
Low Fuel Message 2-87 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Washer Fluid Message 2-87 . . . . . . . . . . . . . . . . . . . . . . .
Lubricants and Fluids 7-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lubrication Service, Body 7-20 . . . . . . . . . . . . . . . . . . . . . . . .
Lumbar Controls, Manual 1-3 . . . . . . . . . . . . . . . . . . . . . . . . .
Lumbar Controls, Power 1-5 . . . . . . . . . . . . . . . . . . . . . . . . . .

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9-12
Warning Devices 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning Lights, Gages and Indicators 2-70 . . . . . . . . . . . . . . .
Warranty Information 8-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Washer Fluid, Windshield 6-33, 7-25 . . . . . . . . . . . . . . . . . . .
Washing Your Vehicle 6-58 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weatherstrip Lubrication 7-19 . . . . . . . . . . . . . . . . . . . . . . . . .
Weatherstrips 6-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel
Alignment 6
-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nut Torque 5-30, 6-74 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wrench 5-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windows 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sliding Rear 2-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Swing-Out 2-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Windshield Washer 2
-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid 2-47, 6-33, 7-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid Level Check 7-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Wipers 2-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blade Replacement 6-44, 6-77 . . . . . . . . . . . . . . . . . . . . . .
Cleaning the Blades 6-57 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuses 6-64 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Winter Driving 4-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiper Blade Check 7-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiper Blades, Cleaning 6-57 . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring, Trailer 4-65 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring Harness, Instrument Panel Jumper 4-69 . . . . . . . . . . . .
Wrench, Wheel 5-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .