loading CHEVROLET SUBURBAN 1993 User Guide
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Page 341 of 386

Scheduled Maintenance Services
Scheduled Maintenance Services
This part tells you the maintenance services that you should h\
ave done and
the times you should schedule them. Your
GM dealer knows your vehicle best
and wants you to be happy with it.
If you go to your dealer for your service
needs, you’ll know that GM-trained and supported service peop\
le will perform
the work using genuine GM parts.
These schedules are for vehicles that:
carry passengers and cargo within the recommended limits. You will find
these limits on your vehicle’s Certification Label. See “L\
oading Your
Vehicle” in the Index.
are driven on regular road surfaces, and within legal driving \
limits.
are driven off-road in the recommended manner. See the index Under
use the recommended fuel. See “Fuel” in the Index.
“Off Road Driving With Your Four Wheel Drive Vehicle.”
Selecting The Proper Maintenance Services
To find the proper maintenance schedule for your vehicle, you must know\
two
things. What engine your vehicle has, and how you use your ve\
hicle. Your
engine type will tell you which chart to use, and your driving conditions will
tell you which schedule to use. The charts are found later in this section.
Selecting the Proper Maintenance Chart
Your engine type (Gasoline or Diesel) and its emissions classification (L\
ight
Duty
or Heavy Duty Emissions) will tell you which maintenance chart to use.
Find your Vehicle Identification Number (VIN), and
look at the eighth character
to see what your engine code is. Then use the following Engine Emissions
Classifications table
to find your emissions classification.
Your VIN is on the plate on the top left corner of your instrument panel,
the Certification Label and on the Service Parts Identification Label. See
“Vehicle Identification Number” in the Index.
Certification Label to see what your Gross Vehicle Weight Rating
(GVWR) is. See “Loading Your Vehicle” in the Index.
If your engine has more than one emissions classification, look at your
7-4
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Page 359 of 386

Scheduled Maintenance Services
When the wheels are removed for rotation, inspect disc brake p\
ads for wear
and rotors for surface condition.
Also inspect drum brake linings for wear and
cracks. Inspect other brake parts, including drums, wheel cylind\
ers, parking
brake, etc., at the same time. Remove any rust
or dirt from the wheel and
mounting surfaces before mounting the wheel.
Inspect brakes more often if driving habits or conditions result in
frequent braking.
Owner Checks and Services
Listed below are owner checks and services which should be made at the
time period specified to help ensure proper safety, emission pe\
rformance, and
dependability of your vehicle.
Be sure any necessary repairs are completed at once. Whenever \
any fluids
or lubricants are added to your vehicle, make sure they are the proper ones,
as shown in this Section.
At Least Once a Month
Tire inflation pressure check --Check the tires for proper inflation. If they
are low, inflate them to the level specified on the certification label
or on the
tire inflation charts. See “Loading Your Vehicle” or “Inflation-Tire Pressure” in
the Index.
At Least Once a Year
Key lock cylinder lubrication --Lubricate key lock cylinders with engine oil.
See the “Recommended Fluid and Lubricants” chart in this section.
Transmission neutral or clutch start switch operation
4 When you are doing this check, the vehicle could move suddenly. If
it does, you or others could be injured. Follow the steps below. I
1. Before you start, be sure you have enough room around the veh\
icle.
2. Firmly apply both the manual parking brake and the regular bra\
ke. See
“Brakes” and “Parking Brake” in the Index.
Do not use the accelerator
pedal.
3. Be ready to turn off the engine immediately if it starts.
4. On automatic transmission vehicles, try to start the engine in each gear.
The starter should work only in
P (Park) or N (Neutral).
7-22
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Page 379 of 386

INDEX
H
Halogen Bulbs .............................. 6.38
Hazard Warning Flashers
.............. 5-2
Head Restraints
.............................. 1-5
Headlights
............... 2-46, 6-38, 6-43
Composite
.................................. 6-39
High Beam Indicator Light
...... 2-74
High-Low Beam
............. 2-38, 4-36
Reminder
................................... 2-47
Replacement
................... 6-37, 6-72
Sealed Beam
............................. 6-38
Heating System (with AIC)
........... 3-5
Rear (Wagon Models)
................ 3-8
Rear Window Defogger
........... 3-11
System Controls
......................... 3-6
Heating System (without AIC)
..... 3-4
Fan Knob ..................................... 3-4
Function Lever
............................ 3-4
Rear Window Defogger
........... 3-1 1
Temperature Lever ...................... 3-4
Highway Hypnosis
........................ 4-46
Hitches
........................................... 4-59
Hood
Latches and Hinge ................... 6-36
Release
........................................ 6-8
Horn
............................................... 2-35
Hydraulic Clutch
........................... 6-21
Grease Fitting
............................ 6-23
Hydroplaning
................................. 4-38
1
If You’re Stuck In Sand, Mud,
Ice or Snow
.............................. 5-31
Ignition Switch
.............................. 2-1 1
Inflation-Tire Pressure ................. 6-49
Instrument Panel
.......................... 2-62
Standard Cluster
....................... 2-64
J
Jack and Tools ............................. 5-18
Removal ..................................... 5-1 8
Storage
............................ 5-29, 5-30
Jump Starting
................................. 5-3
K
Key Release Lever ....................... 2-13
Keys
................................................. 2-3
L
Lights ............................................. 2-46
Brake System Warning
............ 4-17
Bulb Replacement .................... 6-37
Charging System Light
........... 2-71
Check Gages Light
.................. 2-73
Dome
......................................... 2-48
Front Parkingnurn Signal
........ 6-40
Headlights (See “Headlights”)
Indicator
..................................... 2-68
Operation
................................... 2-37
Reading
..................................... 2-49
Roof Marker
.............................. 6-42
Service Engine
Soon ..... 2-72, 6-45
Rear
........................................... 6-42
Replacement Chart
.................. 6-72
Side Marker
.............................. 6-41
Underhood Reel
....................... 2-50
Loading Your Vehicle
........ 4-25, 6-46
Add-on Equipment
................... 6-48
Lubrication
..................................... 6-35
Accelerator Control System
.... 6-35
Constant Velocity Joints
......... 6-36
Front Axle
................................. 6-24
Front Shock Absorbers
........... 6-34
Front Suspension and Steering Linkage
................... 6-34
Front Wheel Bearings
.............. 6-34
Tailgate Handle
......................... 6-37
Hydraulic Clutch Grease Fitting
....................... 6-23
Hood Latches and Hinge
........ 6-36
Lock Cylinders
.......................... 6-36
Propeller Shaft Slip Splines
... 6-36
Rear Axle
.................................. 6-24
Recommended Lubricants
...... 7-25
Transfer Case
............................ 6-23
Luggage Carrier
........................... 2-80
Body
........................................... 6-36
9-4
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Safety Chains ............................... 4-60
Scheduled Maintenance
Seats Safety Warnings and Symbols
..... 0-2
Services
............................ 7-4, 7-1 8
Controls
........................................ 1-2
Easy Entry Seat
.......................... 1 -6
Manual Front
............................... 1 -2
Power Driver‘s
............................ 1-3
Rear Folding
................................ 1-8
Reclining
..................................... 1-3
Removable
................................. 1-1 1
Seatback Latches
....................... 1-5
(AIR) System
............................ 6-45
Do-It-Yourself
............................... 6-3
Parts Identification Label
......... 6-67
Publications
........................ 8-6, 8-8
Replacement Parts and Filter Recommendations
.................. 6-69
Service Engine
Soon Light ......... 2-72
Service Station Checks
............... 7-28
Shift Indicator Light
.......... 2-22, 2-74
Shifting Into Park
......................... 2-24
Single Belt Accessory Drive
....... 6-34
Spare Tire
..................................... 5-1 8
Removal ..................................... 5-20
Storage ....................................... 5-30
Specification Charts ..................... 6-68
Speedometer
................................. 2-66
Starting Your Engine
................... 2-1 4
Column Shift Lever
.................. 2-25
In Emergencies
......................... 4-1 9
Tips ............................................. 4-1 8
Storage Compartments ................ 2-55
Other
.......................................... 2-6 1
Sun Visors .................................... 2-53
Secondary
Air Injection
Service
Steering
......................................... 4-18
T
Tachometer ................................... 2-67
Tailgate
............................................ 2-7
Electric Glass Release ............. 2-34
Theft
.............................................. 2-10
Thermostat
.................................... 6-28
Tilt Wheel
..................................... 2-35
Tires
............................................... 6-48
Balancing
................................... 6-55
Chains
........................................ 6-56
Changing a Flat
............. 5-16, 5-20
Flat
............................................. 5-16
Hub CapsNVheel Nut Caps
.... 5-22
Inspection and Rotation
.......... 6-52
Loading
...................................... 6-46
New ............................................
Pressure ..................................... 6-49
Spare (See “Spare Tire”)
Uniform Tire Quality Grading
. 6-54
Torque Lock
........................ 2-24, 4-52
Towing
A Trailer ..................................... 4-56
Backing Up
............................... 4-61
Following Distance
................... 4-61
Hitches
....................................... 4-59
Maintenance
.............................. 4-63
Towing Your Vehicle
...................... 5-7
Traffic Lights
................................... 4-7
Trailer Brakes
.............................. 4-60
Towing
........................................ 4-56
Wiring Harness
......................... 2-82
Trailering Package
........................ 6-47
Transfer Case
..................... 2-30, 6-23
Transmission Automatic
.................................. 2-17
Five-Speed Manual
.................. 2-20
Fluid ................................. 6-1 7, 6-20
Fluid, To Add
.................. 6-1 9. 6-21
Fluid.
To Check .............. 6-18. 6-20
6-53
9-6
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Page 382 of 386

Four-wheel
Shift Light
.................................. 2-22
Torque Lock (Automatic
Transmission)
............. 2.24. 4-52
Trip Odometer
............................... 2-67
V
Damage Warnings ...................... 0-3
Identification Number
.... 6.65. 6-66
Loading
............................ 4.25. 6-46
Storage
....................................... 6-37
Symbols
...................................... 0-4
Ventilation System
......................... 3-2
Air Vents
...................................... 3-3
Tips
............................................... 3.2
Voltmeter
....................................... 2-79
(See “Four-Wheel
Drive”)
Vehicle
W
Warning Lights. Gages and Indicators
.................... 2.68. 2-76
(Also See “Lights”)
Devices. Other
............... ; ............ 5-3
Alignment and Tire Balance
... 6-55
Aluminum
.................................. 6-62
Hub CapsNheel Nut Caps
.... 5-22
Nut Torque
..................... 6.34. 6-68
Replacement
............................. 6-55
Used Replacement
................... 6-56
Windows
........................................ 2-33
Windshield Washer
...................... 2-40
Rear Window
............................ 2-54
Washer Fluid
.................. 2.40. 6-31
Winter Driving
.............................. 4-53
Wipers. Windshield
..................... 2-39
Blade Chatter
............................ 6-60
Blade Inserts
............................ 6-35
Cleaning Blades
........................ 6-60
Rear Window
............................ 2-54
Wheels
9-7
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