2004 CHEVROLET OPTRA cooling

84,000 Miles (140 000 km)
❑Change engine oil and filter (or every 3 months,
whichever occurs first).An Emission Control Service.
❑Rotate tires. SeeTire Inspection and Rotation
on page 5-58for proper rotation pattern and
additional information.(See footnote +.)
87,000 Miles (145 000 km)
❑Change engine oil and filter (or every 3 months,
whichever occurs first).An Emission Control Service.
90,000 Miles (150 000 km)
❑Change engine oil and filter (or every 3 months,
whichever occurs first).An Emission Control Service.
❑Replace passenger compartment air filter. If you drive
regularly under dusty conditions, the filter may
require replacement more often.
❑Replace engine air cleaner filter. SeeEngine Air
Cleaner/Filter on page 5-18for more information.
An Emission Control Service.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-58for proper rotation pattern and additional
information.(See footnote +.)❑Replace spark plugs.An Emission Control Service.
❑Replace fuel filter.An Emission Control Service.
(See footnote †.)
❑Inspect drive belt(s).
❑Inspect timing belt.
❑Drain, flush and refill cooling system. SeeEngine
Coolant on page 5-21for what to use. Inspect
hoses. Clean radiator, condenser, pressure cap and
neck. Pressure test the cooling system and
pressure cap.An Emission Control Service.
❑Inspect EVAP canister, vapor lines and solenoid
valve filter.An Emission Control Service. (See
footnote †.)
❑Inspect PCV system.An Emission Control Service.
(See footnote †.)
❑Change brake/clutch fluid (or every 24 months,
whichever occurs first).
93,000 Miles (155 000 km)
❑Change engine oil and filter (or every 3 months,
whichever occurs first).An Emission Control Service.
6-12

15,000 Miles (25 000 km)
❑Change engine oil and filter (or every 12 months,
whichever occurs first).An Emission Control
Service.
❑Replace passenger compartment air filter. If you
drive regularly under dusty conditions, the filter
may require replacement more often.
❑Inspect engine air cleaner filter. SeeEngine Air
Cleaner/Filter on page 5-18for more information.
An Emission Control Service. (See footnote †.)
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-58for proper rotation pattern and additional
information.(See footnote +.)
❑Inspect drive belt(s).
22,500 Miles (37 500 km)
❑Change engine oil and filter (or every 12 months,
whichever occurs first).An Emission Control
Service.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-58for proper rotation pattern and additional
information.(See footnote +.)
30,000 Miles (50 000 km)
❑Change engine oil and filter (or every 12 months,
whichever occurs first).An Emission Control Service.
❑Replace passenger compartment air filter. If you drive
regularly under dusty conditions, the filter may require
replacement more often.
❑Replace engine air cleaner filter. SeeEngine Air
Cleaner/Filter on page 5-18for more information.An
Emission Control Service.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-58for proper rotation pattern and additional
information.(See footnote +.)
❑Replace spark plugs.An Emission Control Service.
❑Inspect drive belt(s).
❑Inspect timing belt.
❑Drain, flush and refill cooling system. SeeEngine
Coolant on page 5-21for what to use. Inspect hoses.
Clean radiator, condenser, pressure cap and neck.
Pressure test the cooling system and pressure cap.
An Emission Control Service.
❑Inspect EVAP canister, vapor lines and solenoid valve
filter.An Emission Control Service. (See footnote †.)
❑Inspect PCV system.An Emission Control Service.
(See footnote †.)
❑Change brake/clutch fluid (or every 24 months,
whichever occurs first).
6-14

❑Inspect drive belt(s).
❑Replace timing belt.
❑Drain, flush and refill cooling system. SeeEngine
Coolant on page 5-21for what to use. Inspect
hoses. Clean radiator, condenser, pressure cap and
neck. Pressure test the cooling system and
pressure cap.An Emission Control Service.
❑Inspect EVAP canister and vapor lines. Replace
solenoid valve filter.An Emission Control Service.
(See footnote †.)
❑Inspect PCV system.An Emission Control Service.
(See footnote †.)
❑Change brake/clutch fluid (or every 24 months,
whichever occurs first).
67,500 Miles (112 500 km)
❑Change engine oil and filter (or every 12 months,
whichever occurs first).An Emission Control
Service.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-58for proper rotation pattern and additional
information.(See footnote +.)
75,000 Miles (125 000 km)
❑Change engine oil and filter (or every 12 months,
whichever occurs first).An Emission Control Service.
❑Replace passenger compartment air filter. If you drive
regularly under dusty conditions, the filter may require
replacement more often.
❑Inspect engine air cleaner filter. SeeEngine Air
Cleaner/Filter on page 5-18for more information.An
Emission Control Service. (See footnote †.)
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-58for proper rotation pattern and additional
information.(See footnote +.)
❑Inspect drive belt(s).
82,500 Miles (137 500 km)
❑Change engine oil and filter (or every 12 months,
whichever occurs first).An Emission Control
Service.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-58for proper rotation pattern and additional
information.(See footnote +.)
6-16

90,000 Miles (150 000 km)
❑Change engine oil and filter (or every 12 months,
whichever occurs first).An Emission Control
Service.
❑Replace passenger compartment air filter. If you
drive regularly under dusty conditions, the filter
may require replacement more often.
❑Replace engine air cleaner filter. SeeEngine Air
Cleaner/Filter on page 5-18for more information.
An Emission Control Service.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-58for proper rotation pattern and additional
information.(See footnote +.)
❑Replace spark plugs.An Emission Control Service.
❑Replace fuel filter.An Emission Control Service.
(See footnote †.)
❑Inspect drive belt(s).
❑Inspect timing belt.❑Drain, flush and refill cooling system. SeeEngine
Coolant on page 5-21for what to use. Inspect
hoses. Clean radiator, condenser, pressure cap and
neck. Pressure test the cooling system and
pressure cap.An Emission Control Service.
❑Inspect EVAP canister, vapor lines and solenoid
valve filter.An Emission Control Service. (See
footnote †.)
❑Inspect PCV system.An Emission Control Service.
(See footnote †.)
❑Change brake/clutch fluid (or every 24 months,
whichever occurs first).
97,500 Miles (162 500 km)
❑Change engine oil and filter (or every 12 months,
whichever occurs first).An Emission Control
Service.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-58for proper rotation pattern and additional
information.(See footnote +.)
6-17

Part C: Periodic Maintenance
Inspections
Listed in this part are inspections and services which
should be performed at least twice a year (for instance,
each spring and fall).You should let your dealer’s
service department do these jobs. Make sure any
necessary repairs are completed at once.
Proper procedures to perform these services may be
found in a service manual. SeeService Publications
Ordering Information on page 7-12.
Steering, Suspension and Front
Drive Axle Boot and Seal Inspection
Inspect the front and rear suspension and steering
system for damaged, loose or missing parts, signs of
wear or lack of lubrication. Inspect the power steering
lines and hoses for proper hook-up, binding, leaks,
cracks, chafing, etc. Clean and then inspect the drive
axle boot seals for damage, tears or leakage. Replace
seals if necessary.
Exhaust System Inspection
Inspect the complete exhaust system. Inspect the body
near the exhaust system. Look for broken, damaged,
missing or out-of-position parts as well as open seams,
holes, loose connections or other conditions which
could cause a heat build-up in the floor pan or could let
exhaust fumes into the vehicle. SeeEngine Exhaust
on page 2-33.
Fuel System Inspection
Inspect the complete fuel system for damage or leaks.
Engine Cooling System Inspection
Inspect the hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
fittings and clamps; replace as needed. Clean the
outside of the radiator and air conditioning condenser.
To help ensure proper operation, a pressure test of
the cooling system and pressure cap is recommended
at least once a year.
6-23

Child Restraints (cont.)
Securing a Child Restraint in a Rear Seat
Position..................................................1-45
Securing a Child Restraint in the Right Front
Seat Position...........................................1-48
Top Strap...................................................1-39
Top Strap Anchor Location............................1-41
Where to Put the Restraint...........................1-38
Cigarette Lighter.............................................3-17
Cleaning
Inside of Your Vehicle..................................5-73
Outside of Your Vehicle................................5-76
Underbody Maintenance...............................5-79
Weatherstrips..............................................5-76
Cleaning Aluminum Wheels..............................5-78
Cleaning Exterior Lamps/Lenses.......................5-77
Cleaning Fabric/Carpet....................................5-73
Cleaning Glass Surfaces..................................5-75
Cleaning Interior Plastic Components.................5-75
Cleaning Leather............................................5-75
Cleaning the Top of the Instrument Panel...........5-75
Cleaning Tires................................................5-78
Cleaning Vinyl................................................5-75
Cleaning Windshield and Wiper Blades..............5-77
Climate Control System...................................3-19
Air Filter, Passenger Compartment.................3-23
Outlet Adjustment........................................3-22
Clock............................................................3-18Clutch and Brake Pedal Free Play Check...........6-19
Clutch, Hydraulic.............................................5-20
Compact Spare Tire........................................5-72
Control of a Vehicle.......................................... 4-5
Coolant
Engine Temperature Gage............................3-32
Heater, Engine............................................2-21
Surge Tank Pressure Cap.............................5-24
Cooling System..............................................5-27
Cruise Control.................................................. 3-9
Cruise Control Light........................................3-37
Cupholder(s)..................................................2-37
Current and Past Model Order Forms................7-13
Customer Assistance Information
Courtesy Transportation.................................. 7-7
Customer Assistance for Text Telephone (TTY)
Users....................................................... 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Program for Persons with
Disabilities................................................ 7-5
Reporting Safety Defects to General Motors.......7-12
Reporting Safety Defects to the Canadian
Government............................................7-12
Reporting Safety Defects to the United States
Government............................................7-11
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-12
3

D
Daytime Running Lamps (DRL).........................3-13
Daytime Running Lamps Indicator Light.............3-38
Defensive Driving............................................. 4-2
Defogging and Defrosting.................................3-21
Dinghy Towing................................................4-32
Disarming the System.....................................2-17
Doing Your Own Service Work........................... 5-4
Dolly Towing..................................................4-32
Dome Lamp...................................................3-15
Door
Ajar Light...................................................3-38
Central Door Unlocking System....................... 2-8
Door Ajar Reminder....................................... 2-9
Locks.......................................................... 2-7
Power Door Locks......................................... 2-9
Rear Door Security Locks............................... 2-9
Driver
Position, Safety Belt.....................................1-15
Seat Height Adjuster...................................... 1-4
Driving
At Night.....................................................4-14
City...........................................................4-19
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-20Driving (cont.)
Hill and Mountain Roads..............................4-23
In Rain and on Wet Roads...........................4-16
Winter........................................................4-25
Driving on Snow or Ice....................................4-26
Driving Through Deep Standing Water...............4-18
Driving Through Flowing Water.........................4-18
E
Electrical System
Add-On Equipment......................................5-82
Fuses and Circuit Breakers...........................5-83
Headlamp Wiring.........................................5-82
Power Windows and Other Power Options......5-82
Windshield Wiper Fuses...............................5-82
Emergency Trunk Release Handle.....................2-12
Emissions Inspection and Maintenance
Programs...................................................3-35
Engine
Air Cleaner/Filter.........................................5-18
Battery.......................................................5-38
Check and Service Engine Soon Light............3-33
Coolant......................................................5-21
Coolant Heater............................................2-21
Coolant Temperature Gage...........................3-32
Cooling System Inspection............................6-23
4

If the Light Is On Steady.................................3-34
If You Are Caught in a Blizzard.........................4-27
If You Are Stuck in Sand, Mud, Ice or Snow.......4-30
Ignition Positions.............................................2-18
Ignition Transaxle Lock Check..........................6-21
Infants and Young Children, Restraints...............1-31
Inflation - Tire Pressure...................................5-57
Inspection
Brake System.............................................6-24
Engine Cooling System................................6-23
Exhaust System..........................................6-23
Fuel System...............................................6-23
Part C - Periodic Maintenance.......................6-23
Steering, Suspension and Front Drive Axle
Boot and Seal.........................................6-23
Throttle System...........................................6-24
Instrument Panel
Cluster.......................................................3-26
Overview..................................................... 3-2
Instrument Panel Brightness.............................3-14
Instrument Panel Fuse Block............................5-83
Interior Lamps................................................3-14
J
Jump Starting.................................................5-39
K
Key Lock Cylinders Service..............................6-20
Keyless Entry System....................................... 2-3
Keys............................................................... 2-2
L
Lamps
Exterior......................................................3-12
Fog Lamps.................................................5-46
Interior.......................................................3-14
Lamps On Reminder.......................................3-13
Lap-Shoulder Belt...................................1-16, 1-25
LATCH System
Child Restraints...........................................1-42
Securing a Child Restraint Designed for the
LATCH System........................................1-45
Leaving Your Vehicle.......................................2-10
Leaving Your Vehicle With the Engine Running......2-30
Liftgate..........................................................2-13
Light
Air Bag Readiness.......................................3-28
Anti-Lock Brake System Warning...................3-31
Brake System Warning.................................3-30
Charging System.........................................3-29
Cruise Control.............................................3-37
Daytime Running Lamps Indicator..................3-38
7