
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. There will be no sound
when using
the SCAN feature.
PUSHBUTTONS: The six numbered pushbuttons let
you return to your favorite stations. You can set up to
18 stations (six AM, six FM 1 and six FM2).
1. Press AM-FM to select the band.
2. Tune in the desired station by pressing TUNE or the
3. Press AUTO TONE to select the setting you prefer.
4. Press and hold one of the four pushbuttons.
5. The sound will mute. When it returns, release the
SEEK
left or right arrows.
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.
P.SCAN: The preset scan button lets you scan through
your favorite stations stored
on your pushbuttons. Select
either
the AM, FMI 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
(PI-P6) for several seconds before
advancing to the next preset station.
Setting the Tone
AUTO TONE: Press this button to select among the
five 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 or JAZZ.
The display will show which mode the receiver is in. To
return to the manual mode, press and release this button
until MAN appears on the display. This will return the
tone adjustment to the TREB and
BASS controls. When
a TREB or BASS control
is rotated, tone is
automatically set
to MAN.
3-18
ProCarManuals.com

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 tenths of a second. The track
number will also appear when
a new track begins to
play. Press RECALL again
to return to the time display.
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 (instead of I, 2,3. . .) 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.
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, FM 1 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.
3-20
ProCarManuals.com

Fuels in Fo ign Countries -- Gasoline
Engines
If you plan on driving in another country outside the
United States or Canada, the proper
fuel may be hard to
find. Never use leaded gasoline or any other fuel not
recommended
in the previous text on fuel. Costly repairs
caused by use
of improper fuel wouldn’t be covered by
your warranty.
To check on fuel availability, ask an auto club, or
contact a major oil company that does business in the
country where you’ll be driving.
You can
also write us at the following address for
advice. Just tell us where you’re going and give your
Vehicle Identification Number (VIN).
General Motors Overseas Distribution Corporation,
North American
Export Sales (NAES)
1908 Colonel Sam Drive
Oshawa, Ontario
L 1 H 8P7
Filling Your Tank
The fuel cap is behind a
hinged door on the left side
of your vehicle.
On a chassis-cab model, refuel the front
tank first, or in
instances when only a partial fuel fill is desired.
6-4
ProCarManuals.com

Rear Axle
When to Chc d Change Lubricant
Refer to the Maintenance Schedule to determine how
often to check the lubricant and when to change
it. See
“Scheduled Maintenance Services”
in the Index.
How to Check Lubricant
If the level is below the bottom of the filler plug hole,
you’ll need to add some lubricant. Add enough lubricant
to raise the level to the bottom
of the filler plug hole.
C3 (3500 HD) Trucks Equipped with
Dana Rear
Axle
Additional rear axle scheduled maintenance is required
on 3500 HD models equipped with Dana rear axles
when they are driven under the following conditions:
Extreme loading (at or near GVWR) or trailer
towing, and:
0 Operation above 45 mph (70 km/h) for extended
periods
of time
Vehicles used
in any of these conditions require the
rear axle lubricant be changed every 30,000 miles
(SO 000 km). Fluid capacity is 4.12 quarts (3.9 L).
What to Use
Refer to the Maintenance Schedule to determine what
kind
of lubricant to use. See “Recommended Fluids and
Lubricants”
in the Index.
6-24
ProCarManuals.com

Short TripKity Maintenance Schedule -- Gasoline Engines
The services shown in this schedule up to 100,000 miles
(1 66 000 km) should be performed after 100,000 miles
(166 000 km) at the same intervals.
Footnotes
T The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that
the failure to perform this maintenance item will
not
nullify the emission warranty or limit recall liability
prior
to the completion of the vehicle‘s useful life.
We, however, urge that all recommended
maintenance services be performed at the indicated
intervals and the maintenance be recorded.
# Lubricate the front suspension, kingpin bushings,
steering linkage, transmission shift linkage, transfer
case shift linkage, parking brake cable guides, rear
driveline center splines, front axle propshaft splines
and brake pedal springs. Ball joints and kingpin
bushings should not be lubricated unless their
temperature is 10°F
(- 12°C) or higher, or they
could be damaged.
:f: :1:
0
0
0
e
Drive axle service:
Locking Differential
-- Drain fluid and refill at first
engine
oil change. At subsequent oil changes, check
fluid level and add fluid as needed. If driving in
dusty areas or towing a trailer, drain fluid and refill
every 15,000 miles
(25 000 km).
Standard Differential -- Check fluid level and add
fluid
as needed at every oil change. If driving in
dusty areas or towing a trailer, drain fluid and refill
every
I5,OOO miles (25 000 km).
More frequent lubrication may be required for
heavy-duty or off-road
use.
3500 HD Models with applications requiring extreme
overload/trailer towing conditions and high-speed
(above
45 mph or 70 kmh) conditions for extended
periods
of time must have the drive axle fluid changed
evey
30,000 miles (50 000 km). See “Recommended
Fluids and Lubricants’’
in this section.
7-6
ProCarManuals.com

Long Tripmighway Maintenance Schedule -- Gasoline Engines I
The services shown in this schedule up to 100,000 miles
(1 66 000 km) should be performed after 100,000 miles
(166 000 km) at the same intervals.
Footnotes
j- The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that
the failure
to perform this maintenance item will not
nullify the emission warranty or limit recall liability
prior
to the completion of the vehicle’s useful life.
We, however, urge that all recommended
maintenance services be performed at
the indicated
intervals and the maintenance be recorded.
# Lubricate the front suspension, kingpin bushings,
steering linkage, transmission shift linkage, transfer
case shift linkage, parking brake cable guides, rear
driveline center splines, front axle propshaft splines
and brake pedal springs. Ball joints and kingpin
bushings should not be lubricated unless their
temperature is
10°F (- 12°C) or higher, or they
could be damaged.
‘k‘k Drive axle service:
a
e
e
a
Locking Differential -- Drain fluid and refill at first
engine
oil change. At subsequent oil changes, check
fluid level and add fluid as needed.
If driving in
dusty areas or towing a trailer, drain fluid and refill
every 15,000 miles
(25 000.km).
Standard Differential
-- Check fluid level and add
fluid
as needed at every engine oil change. If driving
in dusty areas or towing a trailer, drain fluid and
refill every
15,000 miles (25 000 km).
More frequent lubrication may be required for
heavy-duty or off-road use.
3500 HD Models with applications requiring extreme
overloadtrailer towing conditions and high-speed
(above
45 mph or 70 kmh) conditions for extended
periods
of time must have the drive axle fluid changed
every
30,000 miles (50 000 km). See ”Recommended
Fluids and Lubricants”
in this section.
I
ProCarManuals.com

Mirrors ....................................... 2-43
Convex Outside
.............................. 2-46
Inside Day/Night Rearview
..................... 2-43
Manual
..................................... 2-45
Power Remote Control
......................... 2-45
Model Reference
................................. vi
MountainRoads ................................ 4-36
Electrochromic
bay/Night Rearview
.............. 2-44
MMT
......................................... 6-3
New Vehicle Break-In ........................... 2-8
Nightvision
................................... 4-29
Noise Control System
........................... 6- 1 1
Odometer .................................... 2-57
Odometer
. Trip ................................. 2-57
Off-Road Driving
.............................. 4- I3
Off-Road Recovery
............................. 4- IO
Oil. Engine .................................... 6-12
Overheating Engine
............................. 5- IO
Owner Checks and Services ....................... 7-42
Owner Publications. Ordering
...................... 8-9
Opener.
Garage Door
............................ 2-46
Paint Spotting. Chemical
........................ 6-65
Park. Shifting Into
.............................. 2-26
Parking AtNight
..................................... 2-8
Brake
...................................... 2-25 Brake Mechanism Check
....................... 7-45
Over Things That
Burn ........................ 2-29
With
a Trailer ................................ 4-58
Your Vehicle. Manual Transmission
.............. 2-29
Passenger Position
.............................. 1-28
Passing
....................................... 4-11
Periodic Maintenance Inspections .................. 7-46
Power Accessory
Outlet ............................. 2-53
DoorLocks
................................... 2-5
Driver’sSeat
................................. 1-2
Option Fuses
................................ 6-68
Remote Control Mirror ........................ 2-45
Steering
Fluid ................................ 6-31
Take-Off
.................................... 4-60
Winches
.................................... 4-60
Windows
................................... 2-31
Pregnancy, Use
of Safety Belts .................... 1-27
Problems on the Road
............................ 5-1
PTO ......................................... 4-60
Publications. Service and Owner
.................... 8-9
Lots ........................................ 2-8
Steering
..................................... 4-8
Radiator
..................................... 5-17
Radiator Pressure Cap
........................... 6-30
RadioReception
................................ 3-23
Radios
........................................ 3-6
Rain. Driving
In ................................ 4-30
Reading
Lamps ................................ 2-42
9-7
ProCarManuals.com