ECO mode CHEVROLET SILVERADO 1999 1.G User Guide

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SCAN: Press and hold SEEK for two seconds until
SCAN appears on the display. SCAN allows you to
listen to stations for a few seconds. The receiver will
continue to scan and momentarily stop at each station
until you press the button again. The sound will mute
while scanning.
PUSHBUTTONS: The six numbered pushbuttons let
you return to your favorite stations. You can set up to
18 stations (six AM, six FM1 and six FM2). Just:
1. Turn the radio on.
2. Press AM
-FM to select the band.
3. Tune in the desired station.
4. Press AUTO TONE to select the setting you prefer.
5. Press and hold one of the six pushbuttons. The sound
will mute. When it returns, release the button.
Whenever you press that numbered button, the
station you set will return and the tone you selected
will be automatically selected for that button.
6. Repeat the steps for each pushbutton.P.SCAN: The preset scan button lets you scan through
your favorite stations stored on your pushbuttons. Select
either the AM, FM1 or FM2 mode and then press
P.SCAN. It will scan through each station stored on your
pushbuttons and stop for a few seconds before continuing
to scan through all of the pushbuttons. Press P.SCAN
again or one of the pushbuttons to stop scanning to listen
to a specific stored station. P.SCAN will light up on the
display while in this mode. If one of the stations stored on
a pushbutton is too weak for the location you are in, the
radio display will show the channel number (P1
-P6) for
several seconds before advancing to the next preset station.
Setting the Tone
BASS: Press lightly on this knob to release it from its
stored position. Turn the knob clockwise to increase bass
and counterclockwise to decrease bass. When the BASS
control is rotated, the AUTO TONE display will go blank.
TREB: Press lightly on this knob to release it from its
stored position. Turn the knob clockwise to increase
treble and counterclockwise to decrease treble. When
the TREB control is rotated, the AUTO TONE display
will go blank. If a station is weak or noisy, you may
want to decrease the treble.
Push these knobs back into their stored positions when
you're not using them.

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AUTO TONE: Press this button to select among the six
preset equalization settings and tailor the sound to the
music or voice being heard. Each time you press the
button, the selection will switch to one of the preset
settings of CLASSIC, NEWS, ROCK, POP, C/W
(Country/Western) or JAZZ. To return to the manual
mode, press and release this button until the AUTO
TONE display goes blank. This will return the tone
adjustment to the BASS and TREB controls. If a BASS
or TREB control is rotated, the AUTO TONE display
will go blank. Use PUSHBUTTONS to program
AUTO TONE.
Adjusting the Speakers
BAL: Press lightly on this knob to release it from its
stored position. Turn the control clockwise to adjust
sound to the right speakers and counterclockwise to
adjust sound to the left speakers. The middle position
balances the sound between the speakers.
FADE: Press lightly on this knob to release it from its
stored position. Turn the control clockwise to adjust the
sound to the front speakers and counterclockwise for the
rear speakers. The middle position balances the sound
between the speakers.
Push these knobs back into their stored positions when
you're not using them.Playing a Compact Disc
PWR: Press this knob to turn the system on.
(Please note that you can also turn the system on
when you insert a compact disc into the player with the
ignition on.)
Insert a disc partway into the slot, label side up. The
player will pull it in. Wait a few seconds and the disc
should play. CD and a CD symbol will also appear on
the display. Anytime you are playing a CD, the letters
CD will be next to the CD symbol.
If the disc comes back out and ERR appears on the
display, it could be that:

You are driving on a very rough road. (The disc
should play when the road gets smoother.)

The disc is upside down.

It is dirty, scratched or wet.

It is very humid. (If so, wait about an hour and
try again.)

The disc player is very hot.
Press RECALL to make ERR go off the display.

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PREV (1): Press PREV or the SEEK left arrow to
search for the previous selection. If you hold this button
or press it more than once, the disc will advance further.
Sound is muted in this mode.
RDM (2): Press this button to play the tracks on the disc
in random order. While in the RDM mode, RANDOM
appears on the display. Press RDM again to return to
normal play.
NEXT (3): Press NEXT or the SEEK right arrow to
search for the next selection. If you hold this button or
press it more than once, the disc will advance further.
The next track number will appear on the display. Sound
is muted in this mode.
REV (4): Press and hold REV to return rapidly to a
favorite passage. You will hear the disc selection play at
high speed while you press the REV button. This allows
you to listen and find out when the disc is at the desired
selection. Release REV to resume playing.
FWD (6): Press and hold this button to advance rapidly
within a track. You will hear the disc selection play at
high speed while you press the FWD button. This allows
you to listen and find out when the disc is at the desired
selection. Release FWD to resume playing.RECALL: Press this button to see what track is playing.
Press it again within five seconds to see how long the
CD has been playing that track. Elapsed time is
displayed in minutes and seconds. The track number
will also appear when a new track begins to play. Press
RECALL again to return to the time display.
AM
-FM: While in the CD mode, press this button to
stop playing the CD and play the radio. The CD symbol
will still display but the word CD will be replaced with
either AM, FM1 or FM2. (If the radio is turned off, the
disc stays in the player and will resume playing at the
point where it stopped.)
CD AUX: To switch between the player and the radio
when a disc is playing, press the AM
-FM button. To
return to the player, press CD AUX. When a disc is
playing, the letters CD and the CD symbol will appear
on the display. (If the radio is turned off, the disc stays
in the player and will resume playing at the point where
it stopped.)
EJECT: Press this button to eject the disc from the
player and play the radio. When the same or a new disc
is inserted, the disc will start playing on track one. If a
compact disc is left sitting in the opening for more than
a few seconds, the player will pull the CD back in. The
radio will continue playing. When the ignition is off,
press this button to load a CD.

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REV (4): Press and hold this button to quickly reverse
within a track. As the CD reverses, elapsed time will be
displayed to help you find the correct passage.
FWD (6): Press and hold this button to quickly advance
within a track. As the CD advances, elapsed time will be
displayed to help you find the correct passage.
SEEK: Press the left arrow while playing a CD to go
back to the start of the current track. It will go back to
the current track if more than eight seconds have played.
Press the left arrow again to go to previous tracks. Press
the right arrow to go to the next higher track on the disc.
RANDOM: Press P.SCAN to enter the random play
mode. RANDOM will appear on the display. While in
this mode, the tracks on the disc will be played in
random order. If you press SEEK, PREV or NEXT
while in the random mode, the previous or next track
will be scanned randomly. Press P.SCAN again to turn
off RANDOM and return to normal operation.
RECALL: Press this button to see what track is
currently playing. Press RECALL again within five
seconds to see how long the track has been playing.
When a new track starts to play, the track number will
also appear. Press RECALL a third time and the time of
day will be displayed.TAPE AUX: With a disc loaded in the player and the
radio playing, press this button once to play the compact
disc. To return to playing the radio, press AM
-FM. If
both a cassette tape and CD are loaded, press TAPE
AUX to switch between the tape and compact disc.
EJECT: Press this button on the remote player to eject a
compact disc.
Theft-Deterrent Feature (If Equipped)
THEFTLOCK
is designed to discourage theft of your
radio. It works by using a secret code to disable all radio
functions whenever battery power is removed.
The THEFTLOCK feature for the radio may be used or
ignored. If ignored, the system plays normally and the
radio is not protected by the feature. If THEFTLOCK is
activated, your radio will not operate if stolen.
When THEFTLOCK is activated, the radio will display
LOC to indicate a locked condition anytime battery
power has been interrupted. If your battery loses power
for any reason, you must unlock the radio with the secret
code before it will operate.

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Your vehicle can tow a trailer. If yours was built with
trailering options, as many are, it's ready for heavier
trailers. But trailering is different than just driving your
vehicle by itself. Trailering means changes in handling,
durability and fuel economy. Successful, safe trailering
takes correct equipment, and it has to be used properly.
That's the reason for this part. In it are many
time
-tested, important trailering tips and safety rules.
Many of these are important for your safety and that of
your passengers. So please read this section carefully
before you pull a trailer.
If You Do Decide To Pull A Trailer
If you do, here are some important points:

There are many different laws, including speed limit
restrictions, having to do with trailering. Make sure
your rig will be legal, not only where you live but
also where you'll be driving. A good source for this
information can be state or provincial police.

Consider using a sway control if your trailer will
weigh less than the capacity stamped on your step
bumper. You should always use a sway control if
your trailer will weigh more than the capacity
stamped on your step bumper. You can ask a hitch
dealer about sway controls.
Don't tow a trailer at all during the first 500 miles
(800 km) your new vehicle is driven. Your engine,
axle or other parts could be damaged.

Then, during the first 500 miles (800 km) that you
tow a trailer, don't drive over 50 mph (80 km/h) and
don't make starts at full throttle. This helps your
engine and other parts of your vehicle wear in at the
heavier loads.

If you have an automatic transmission, you can
tow in DRIVE (D). You may want to shift the
transmission to THIRD (3) or, if necessary, a lower
gear selection if the transmission shifts too often
(e.g., under heavy loads and/or hilly conditions).
See ªTow/Haul Modeº in the Index. If you have a
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).
Three important considerations have to do with weight:

the weight of the trailer,

the weight of the trailer tongue

and the weight on your vehicle's tires.

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Tow/Haul Mode (If Equipped)
Tow/haul is a feature on automatic transmission
equipped vehicles that assists when pulling a heavy
trailer or a large or heavy load. The purpose of the
tow/haul mode is to:

Reduce the frequency and improve the predictability
of transmission shifts when pulling a heavy trailer or
a large or heavy load.

Provide the same solid shift feel when pulling a
heavy trailer or a large or heavy load as when the
vehicle is unloaded.

Improve control of vehicle speed while requiring less
throttle pedal activity when pulling a heavy trailer or
a large or heavy load.
Automatic transmission equipped vehicles are provided
with a button at the end of the shift lever which when
pressed enables tow/haul. When the button is pressed, a
light on the instrument panel will illuminate to indicate
that tow/haul has been selected. Tow/haul may be turned
off by pressing the button again, at which time the
indicator light on the instrument panel will turn off. The
vehicle will automatically turn off tow/haul every time it
is started.Tow/haul is designed to be most effective when the
vehicle and trailer combined weight is at least 75% of
the vehicle's Gross Combined Weight Rating (GCWR).
Tow/haul is most useful under the following
driving conditions:

When pulling a heavy trailer or a large or heavy load
through rolling terrain.

When pulling a heavy trailer or a large or heavy load
in stop and go traffic.

When pulling a heavy trailer or a large or heavy load
in busy parking lots where improved low speed
control of the vehicle is desired.
Operating the vehicle in tow/haul when lightly loaded or
with no trailer at all will not cause damage. However,
there is no benefit to the selection of tow/haul when the
vehicle is unloaded. Such a selection when unloaded
may result in unpleasant engine and transmission
driving characteristics and reduced fuel economy.
Tow/haul is recommended only when pulling a heavy
trailer or a large or heavy load.

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Capacities and Specifications
Please refer to ªRecommended Fluids and Lubricantsº in the Index for more information.
Engine Type VIN Code Spark Plug Gap
VORTEC 4300 V6 W 0.060 inches (1.52 mm)
VORTEC 4800 V8 V 0.060 inches (1.52 mm)
VORTEC 5300 V8 T 0.060 inches (1.52 mm)
VORTEC 6000 V8 U 0.060 inches (1.52 mm)
Wheels and Tires
Model Description Torque
C/K 1500 6 bolts (14mm)
140 lb
-ft (190 N´m)
C/K 2500 8 bolts (14mm)
140 lb
-ft (190 N´m)
Tire Pressure See the Certification/Tire label on the rear edge of the driver's door
or the incomplete vehicle document in the cab.

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Maintenance, Normal Replacement Parts 6-77 . . . . . . . . . . .
Maintenance Record 7-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance Schedule 7-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Owner Checks and Services 7-18 . . . . . . . . . . . . . . . . . . . . .
Periodic Maintenance Inspections 7-23 . . . . . . . . . . . . . . . .
Recommended Fluids and Lubricants 7-25 . . . . . . . . . . . . .
Scheduled Maintenance Services 7-4 . . . . . . . . . . . . . . . . . .
Maintenance Services 7-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance, Underbody 6-61 . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance When Trailer Towing 4-64 . . . . . . . . . . . . . . . . .
Malfunction Indicator Lamp 2-77 . . . . . . . . . . . . . . . . . . . . . .
Manual Front Seat 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Mirror 2-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Selectable Ride 2-41 . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Transmission
Check 7
-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid 6-22, 7-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shifting 2-24, 2-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting Your Engine 2-16 . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual Windows 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Memory Seat 1-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Message Center 2-82 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Messages
Battery 2
-82 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cargo Lamp On 2-87 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Change Engine Oil 2-86 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check Coolant Temp 2-84 . . . . . . . . . . . . . . . . . . . . . . . . . .
Check Eng Oil Level 2-85 . . . . . . . . . . . . . . . . . . . . . . . . . .
Check Eng Oil Pressure 2-85 . . . . . . . . . . . . . . . . . . . . . . . .
Engine Overheated 2-85 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Coolant 2-84 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Fuel 2-87 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Low Washer Fluid 2
-87 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reduced Engine Power 2-85 . . . . . . . . . . . . . . . . . . . . . . . .
Security 2-86 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service 4WD 2-86 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trans Fluid Hot 2-82 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Methanol 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mirrors 2-56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Camper Type 2-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Convex Outside 2-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrochromic Day/Night Rearview 2-56 . . . . . . . . . . . . . .
Heated Outside Rearview 2-59, 3-6 . . . . . . . . . . . . . . . . . . .
Inside Day/Night Rearview 2-56 . . . . . . . . . . . . . . . . . . . . .
Manual 2-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Remote Control 2-59 . . . . . . . . . . . . . . . . . . . . . . . . .
MMT 6-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model Reference vi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mountain Roads 4
-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
New Vehicle Break-In 2-13 . . . . . . . . . . . . . . . . . . . . . . . . . .
Night Vision 4-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Normal Maintenance, Normal Replacement Parts 6-77 . . . . . .
Odometer 2-69 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Odometer, Trip 2-69 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Off-Road Driving 4-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Off-Road Recovery 4-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil, Engine 6-12, 7-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Filter 6-77 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Life Monitor 6-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OnStar
System 2-65 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Opener, Garage Door 2-61 . . . . . . . . . . . . . . . . . . . . . . . . . . . .