
I a 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.
I 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’’
in the Index. See
“Changing a
Flat Tire” in the Index for
more information.
Used Replacement Wheels
~
Putting a used wheel on your vehicle is dangerous.
You can’t know how it’s been used or how far it’s
been driven. It could fail suddenly and
cause an
new
GM original equipment wheel.
~ accident. If you have to replace a wheel, use a
Tire Chains
I NOTICE:
If your vehicle has dual wheels or P26975R16 size
tires, don’t use tire chains. They can damage
your
vehicle because there’s not enough clearance.
NOTICE: (Continued)
6-58
ProCarManuals.com

Fuel Tank Capacity (Approximate)
Type
Short Bed
Long Bed Standard Crew Cab
Chassis-Cab Side Tank
Chassis-Cab Rear Tank 3500
HD Models Side Tank
3500
HD Models Rear Tank
Cooling System Capacity (Approximate)
After refill, the level must be rechecked. See “Cooling
System” in the Index.
Engine
“VORTEC” 4300
“VORTEC”
5000
“VORTEC” 5700
“VORTEC” 7400
“VORTEC”
7400
w/3500 HD
VIN
W
M
R
J
J
Quantity
13 quarts (12.3 L)
17.5 quarts (16.6 L)
17.5 quarts (16.6 L)
25 quarts (23.5 L)
28.5 quarts (27 L)
Crankcase Capacity (Approximate)
After refill, the level must be rechecked. See “Engine
Oil” in the Index.
Engine
“VORTEC” 4300
“VORTEC”
5000
“VORTEC” 5700”
“VORTEC” 7400*
VIN
W
M
R
J
Quantity with Filter?
5 quarts (4.8 L)
5 quarts (4.8 L)
7 quarts (6.5 L)
4.5 quarts (4.3
L)
?Oil
filter should be changed at every oil change.
*Add one additional quart (.946
L) for C-3500 HD Models.
Quantity
26 gallons (98 L)
34 gallons (128 L)
34 gallons (128 L)
22 gallons (83 L)
18 gallons (68 L)
22 gallons (83 L)
18 gallons (68 L)
Air Conditioning Refrigerants
Not all air conditioning refrigerants are the same.
If the
air conditioning system in your vehicle needs
refrigerant, be sure the proper refrigerant
is used.
If you’re not sure, ask your GM dealer.
See the refrigerant charge label under the hood for
information regarding refrigerant capacity.
6-78
ProCarManuals.com

Maintenance Schedule
-
Short Trip/City Definition -- Gasoline Engines
Follow the Short TripKity Maintenance Schedule if any
one of these conditions is true for your vehicle:
Most trips are less than 5 to 10 miles (8 to 16 km).
This is particularly important when outside
temperatures
are below freezing.
driving in stop-and-go traffic).
off-road frequently.
Most trips include extensive idling (such as frequent
You operate your vehicle in dusty areas or
You frequently tow a trailer.
If the vehicle is used for delivery service, police, taxi
One of the reasons you should follow this schedule if you
operate
your vehicle under any of these conditions is that
these conditions cause engine
oil to break down soonel:
Short Trip/City Intervals -- Gasoline Engines
Every
3,000 Miles (5 000 km): Engine Oil and Filter
or other commercial application.
Change (or
3 months, whichever occurs first). Chassis
Lubrication (or
3 months, whichever occurs first). Drive
Axle Service (or
3 months, whichever occurs fmt).
Short Trip/City Intervals -- Gasoline Engines
Every 6,000 Miles (10
000 km): Tire Rotation.
Every 15,000 Miles (25 000 km): Shields and
Underhood Insulation Inspection (GVWR above
8,500 lbs. only). Front Wheel Bearing Repack (2WD
only) (or at each brake relining, whichever occurs first).
Every 30,000 Miles (50 000 km): Fuel Filter Replacement.
Every 50,000 Miles (83 000 km): Automatic
Transmission Service (vehicles over
8600 GVWR or
driven under severe conditions only).
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection. Fuel Tank, Cap and Lines
Inspection. Exhaust Gas Recirculation System
Inspection. Evaporative Control System Inspection.
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. Positive
Crankcase Ventilation (PCV) Valve Inspection.
Every 150,000 Miles (240 000 km): Cooling System
Service (or every
60 months, whichever occurs first).
These intervals only summarize maintenance services.
Be sure to follow the complete maintenance schedule
on the following pages.
ProCarManuals.com

Maintenance Schedule
Follow this maintenance schedule only if none of the
conditions from the Short Trip/City Maintenance
Schedule is true.
Da not use this schedule if the vehicle
is used for trailer towing, driven in a dusty area or used
off paved roads. Use the Short Trip/City schedule for
these conditions.
Driving a vehicle with afully warmed engine under
highway conditions causes engine
oil to break
down slower:
Every 7,500 Miles (12 500 km): Engine Oil and Filter
Change (or every
12 months, whichever occurs first).
Chassis Lubrication (or every 12 months, whichever
occurs first). Drive Axle Service. Tire Rotation.
Underhood Insulation Inspection (GVWR above
8,500 lbs. only).
Every 15,000 Miles (25 OOO km): Shields and
I
1 Long Trip/Highway Intervals -- Gasoline Engines ~~~ ~
~ ~~
Every 30,000 Miles (50 000 km): Fuel Filter
Replacement. Front Wheel Bearing Repack
(2WD only)
(or at each brake relining, whichever occurs fiist).
Transmission Service (vehicles over
8600 GVWR or
driven under severe conditions only).
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection. Fuel
Tank, Cap and Lines
Inspection. Exhaust Gas Recirculation System
Inspection. Evaporative Control System Inspection.
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. Positive
Crankcase Ventilation (PCV) Valve Inspection.
Every 150,000 Miles (240 000 km): Cooling System
Service (or every
60 months, whichever occurs first).
Every 50,000 Miles (83 000 km): Automatic
These intervals only summarize maintenance services.
Be sure to
follow the complete maintenance schedule
on the following pages.
7-6
ProCarManuals.com

Short TripKity Maintenance Schedule =- Gasoline Engines
100,000 Miles (166 000 km) (Continued)
- When doing frequent trailer towing.
- Uses such as found in taxi, police or
delivery service.
If you do not use your vehicle under any of
these conditions, the fluid and filter do not
require changing.
Manual transmission fluid doesn’t
require change.
valve.
An Emission Control Service.
0 Inspect Positive Crankcase Ventilation (PCV)
DATE ACTUAL MILEAGE SERVICED BY:
I I I I
150,000 Miles (240 000 km)
0 Drain, flush and refill cooling system
(or every
60 months since last service,
whichever occurs first). See “Engine
Coolant’’ in the Index for what to use.
Inspect hoses. Clean radiator, condenser,
pressure cap and neck. Pressure test cooling
system and pressure cap.
An Emission Control Service.
7-30
ProCarManuals.com

Long Tripmighway Maintenance Schedule -- Gasoline Engines
100,000 Miles (166 000 km) (Continued)
- When doing frequent trailer towing.
- Uses such as found in taxi, police or
delivery service.
If you do not use your vehicle under any of
these conditions, the fluid and.filter do not
require changing.
Manual transmission fluid doesn’t
require change.
0 Inspect Positive Crankcase Ventilation
(Pcv) valve. An Emission Control Service.
DATE ACTUAL MILEAGE
~~
SERVICED BY
150,000 Miles (240 000 km)
0 Drain, flush and refill cooling system
(or every
60 months since last service,
whichever occurs first). See “Engine
Coolant” in the Index for what to use.
Inspect hoses. Clean radiator, condenser,
pressure cap and neck. Pressure test the cooling system and pressure cap.
An Emission Control Service.
1
DATE ACTUAL MILEAGE SERVICED BY
-
ProCarManuals.com

Climate Control System ....................... 3.2. 3.3
Clock. Setting the
................................ 3-7
Clutch Fluid. Hydraulic
.......................... 6-26
Comfort Controls
................................ 3-2
Comfort Guides. Rear
........................... 1-40
Compact Disc Care
............................. 3-26
Compact Disc Player
....................... 3- 16. 3-20
Compass. Rearview Mirror with
................... 2-48
Console Storage
................................ 2-55
Control of a Vehicle
.............................. 4-6
Convex Outside Mirror
.......................... 2-5 1
Coolant ....................................... 6-29
Heater. Engine
............................... 2- 14
RecoveryTank
............................... 5-15
Cooling System ................................ 5- 13
Courtesy Transportation
........................... 8-8
Cruise Control
................................. 2-40
Cupholders
............................... 2-54. 2-55
Customer Assistance Information ................... 8-3
Customer Satisfaction Procedure
.................... 8-2
Customer
Assistance for Text Telephone Users
......... 8-4
Damage. Finish
............................... 6-66
Damage. Sheet Metal
............................ 6-66
Daytime Running Lamps
......................... 2-44
Daytime Running Lamps Indicator Light
............ 2-77
Dead Battery ................................... 5-3
Defects. Reporting Safety
........................ 8- 10
Defensive Driving ............................... 4-2
Defogger. Rear Window
.......................... 3-6
Defogging and Defrosting ......................... 3-6 Dolby@
B Noise Reduction ........................ 3-15
Door
DomeLamps
.................................. 2-46
Locks
....................................... 2-5
StoragePocket
............................... 2-52
Third
........................................ 2-4
Downshifting
.................................. 2-21
Driver Position
................................. 1-15
Driving City
........................................ 4-32
Defensive
.................................... 4-2
Drunken
..................................... 4-3
Freeway
.................................... 4-33
Guidelines
.................................. 4-14
InaBlizzard
................................. 4-39
IntheRain
.................................. 4-29
Night
...................................... 4-27
Off-Road
................................... 4-14
OnCurves
................................... 4-9
On Grades While Towing
a Trailer ............... 4-56
On Hill and Mountain Roads
.................... 4-35
OnSnowandIce
............................. 4-37
Throughwater
............................... 4-31
WetRoads
.................................. 4-29
Winter
...................................... 4-37
With a Trailer
................................ 4-54
Drunken Driving
................................ 4-3
Easy Entry Seat ................................ 1-7
Electrical Equipment. Adding
........... 2- 14. 3-24. 6-70
ProCarManuals.com

Electrical System ............................... 6-70
Engine
.................................. 6-10. 6-12
Electrochromic
Daymight Rearview Mirror
.......... 2-48
Coolant
..................................... 6-29
Coolant Heater
............................... 2- 14
Coolant Level Check
.......................... 7-45
Coolant Temperature Gage
..................... 2-72
Cooling System Capacity
....................... 6-78
Exhaust
..................................... 2-32
FuseBlocks
............................ 6-71, 6-73
Identification
................................ 6-69
OilLevelCheck
.............................. 7-45
Overheating
................................. 5-11
Running While Parked
......................... 2-32
Specifications
................................ 6-76
StartingYour
................................ 2-13
Underhood Fuse/Relay Center
................... 6-73
Engineoil
.................................... 6-15
Adding
..................................... 6-15
Additives
................................... 6-18
Checking
................................... 6-15
Used
....................................... 6-18
Whentochange
.............................. 6-18
Exhaust. Engine
................................ 2-32
Pressure Gage
................................ 2-75
Fabric Cleaning
............................... 6-60
Fan Control. Climate Control System ............ 3.2. 3.3
Fender Marker Lamp
Bulb Replacement ............. 6-44
FillingYourTank
................................ 6-5
Filter. Air ..................................... 6-19
Finish Care
.................................... 6-64
Finish Damage
................................. 6-66
Flashers. Hazard Warning
......................... 5-2
Flat Tire. Changing
............................. 5-22
Fluid Capacities
................................ 6-78
Fluids and Lubricants
............................ 7-51
Fog Lamps
.................................... 2-45
Foreign Countries. Fuel
........................... 6-4
Four-wheel Drive
......................... 2-22. 6-27
French LanguageManual
11
Front Axle .................................... 6-28
Front Axle Locking Feature
....................... 2-23
FrontTowing
.................................. 5-10
Front Turn Signal Lamp Bulb Replacement ..... 6-42. 6-43
Fuel
.......................................... 6-3
Filling Your Tank
.............................. 6-5
Gage ....................................... 2-78
In Foreign Countries ........................... 6-4
Tank Capacity
............................... 6-78
Fuses and Circuit Breakers
....................... 6-71
FusibleLinks
.................................. 6-71
.. ...........................
bages Engine Coolant Temperature
.................... 2-72
Engine Oil Pressure
........................... 2-75 "
Fuel ....................................... 2-78
Speedometer
................................. 2-65
Tachometer
.................................. 2-65
Voltmeter
................................... 2-70
9-4
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