2006 CHEVROLET EPICA octane

Did you just drive through a deep puddle of water?
If so, your electrical system may be wet. The condition
will usually be corrected when the electrical system
dries out. A few driving trips should turn the light off.
Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel. See
Gasoline Octane on page 5-5. Poor fuel quality will
cause your engine not to run as efficiently as designed.
You may notice this as stalling after start-up, stalling
when you put the vehicle into gear, misfiring, hesitation
on acceleration, or stumbling on acceleration. (These
conditions may go away once the engine is warmed up.)
This will be detected by the system and cause the
light to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It will require at least
one full tank of the proper fuel to turn the light off.
If none of the above steps have made the light turn off,
your dealer can check the vehicle. Your dealer has
the proper test equipment and diagnostic tools to fix
any mechanical or electrical problems that may
have developed.Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have or
may begin programs to inspect the emission control
equipment on your vehicle. Failure to pass this
inspection could prevent you from getting a vehicle
registration.
Here are some things you need to know to help your
vehicle pass an inspection:
Your vehicle will not pass this inspection if the Check
Engine light is on or not working properly.
Your vehicle will not pass this inspection if the OBD
(on-board diagnostic) system determines that critical
emission control systems have not been completely
diagnosed by the system. The vehicle would be
considered not ready for inspection. This can happen
if you have recently replaced your battery or if your
battery has run down. The diagnostic system is
designed to evaluate critical emission control systems
during normal driving. This may take several days
of routine driving. If you have done this and your vehicle
still does not pass the inspection for lack of OBD
system readiness, your GM dealer can prepare the
vehicle for inspection.
3-42

Service............................................................5-3
Accessories and Modifications..........................5-3
California Proposition 65 Warning.....................5-4
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside
of Your Vehicle...........................................5-5
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Specifications....................................5-5
California Fuel...............................................5-6
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-7
Filling the Tank..............................................5-8
Filling a Portable Fuel Container.....................5-10
Checking Things Under the Hood....................5-11
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-13
Engine Air Cleaner/Filter................................5-17
Automatic Transaxle Fluid..............................5-19
Engine Coolant.............................................5-19
Coolant Surge Tank Pressure Cap..................5-22
Engine Overheating.......................................5-22
Cooling System............................................5-24
Power Steering Fluid.....................................5-29Windshield Washer Fluid................................5-30
Brakes........................................................5-31
Battery........................................................5-34
Jump Starting...............................................5-35
Headlamp Aiming...........................................5-38
Bulb Replacement..........................................5-39
Halogen Bulbs..............................................5-39
Headlamps..................................................5-39
Front Turn Signal Lamps...............................5-41
Center High-Mounted Stoplamp (CHMSL).........5-42
Parking Lamps.............................................5-43
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps.........................................5-44
Replacement Bulbs.......................................5-44
Windshield Wiper Blade Replacement..............5-45
Tires..............................................................5-46
Tire Sidewall Labeling...................................5-47
Tire Terminology and Definitions.....................5-49
Inflation - Tire Pressure.................................5-52
Tire Inspection and Rotation...........................5-53
When It Is Time for New Tires.......................5-54
Buying New Tires.........................................5-55
Different Size Tires and Wheels......................5-56
Uniform Tire Quality Grading..........................5-56
Section 5 Service and Appearance Care
5-1

Your vehicle has an airbag system. Before attempting
to do your own service work, seeServicing Your
Airbag-Equipped Vehicle on page 1-62.
You should keep a record with all parts receipts and list
the mileage and the date of any service work you
perform. SeePart E: Maintenance Record on page 6-27.
Adding Equipment to the Outside
of Your Vehicle
Things you might add to the outside of your vehicle
can affect the airflow around it. This may cause
wind noise and affect windshield washer performance.
Check with your dealer before adding equipment to
the outside of your vehicle.
Fuel
Use of the recommended fuel is an important part of
the proper maintenance of your vehicle.
Gasoline Octane
Use regular unleaded gasoline with a posted octane
rating of 87 or higher. If the octane rating is less than 87,
you may notice an audible knocking noise when you
drive, commonly referred to as spark knock. If this
occurs, use a gasoline rated at 87 octane or higher as
soon as possible. If you are using gasoline rated at
87 octane or higher and you hear heavy knocking,
your engine needs service.
Gasoline Specications
At a minimum, gasoline should meet
ASTM specification D 4814 in the United States
or CAN/CGSB-3.5 in Canada. Some gasolines
may contain an octane-enhancing additive called
methylcyclopentadienyl manganese tricarbonyl (MMT).
General Motors recommends against the use of
gasolines containing MMT. SeeAdditives on
page 5-6for additional information.
5-5

Notice:Your vehicle was not designed for fuel
that contains methanol. Do not use fuel containing
methanol. It can corrode metal parts in your fuel
system and also damage the plastic and rubber
parts. That damage would not be covered under
your warranty.
Some gasolines that are not reformulated for low
emissions may contain an octane-enhancing additive
called methylcyclopentadienyl manganese tricarbonyl
(MMT); ask the attendant where you buy gasoline
whether the fuel contains MMT. General Motors
recommends against the use of such gasolines.
Fuels containing MMT can reduce the life of spark
plugs and the performance of the emission control
system may be affected. The malfunction indicator
lamp may turn on. If this occurs, return to your
authorized GM dealer for service.Fuels in Foreign Countries
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 would not
be covered by your warranty.
To check the fuel availability, ask an auto club, or
contact a major oil company that does business in
the country where you will be driving.
5-7

Part A: Scheduled Maintenance
Services
In this part are scheduled maintenance services which
are to be performed at the mileage intervals specified.
Using the Maintenance Schedule
We at General Motors want to keep your vehicle in
good working condition. But we do not know exactly how
you will drive it. You may drive short distances only a
few times a week. Or you may drive long distances
all the time in very hot, dusty weather. You may
use your vehicle in making deliveries. Or you may
drive it to work, to do errands or in many other ways.
Because of the different ways people use their vehicles,
maintenance needs may vary. You may need more
frequent checks and replacements. So please read
the following and note how you drive. If you have
questions on how to keep your vehicle in good condition,
see your dealer.This part tells you the maintenance services you should
have done and when to schedule them.
When you go to your dealer for your service needs,
you will know that GM-trained and supported service
people will perform the work using genuine GM parts.
The proper fluids and lubricants to use are listed in
Part D. Make sure whoever services your vehicle uses
these. All parts should be replaced and all necessary
repairs done before you or anyone else drives the
vehicle.
These schedules are for vehicles that:
•carry passengers and cargo within recommended
limits. You will find these on the tire and loading
information label. SeeLoading Your Vehicle
on page 4-29.
•are driven on reasonable road surfaces within legal
driving limits.
•use the recommended fuel. SeeGasoline Octane
on page 5-5.
6-4

Engine (cont.)
Check and Service Engine Soon Light............3-40
Coolant......................................................5-19
Coolant Heater............................................2-20
Coolant Temperature Gage...........................3-40
Cooling System Inspection............................6-24
Engine Compartment Overview......................5-12
Exhaust.....................................................2-29
Oil .............................................................5-13
Overheating................................................5-22
Starting......................................................2-19
Entry Lighting.................................................3-16
Event Data Recorders (EDR)............................. 7-9
Extender, Safety Belt.......................................1-27
Exterior Lamps...............................................3-12
F
Filter
Engine Air Cleaner......................................5-17
Finish Damage...............................................5-73
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-60
Flat Tire, Changing.........................................5-61
Flat Tire, Storing.............................................5-66Fluid
Automatic Transaxle.....................................5-19
Power Steering...........................................5-29
Windshield Washer......................................5-30
Fog Lamps ....................................................3-14
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-8
Fuels in Foreign Countries.............................. 5-7
Gage .........................................................3-45
Gasoline Octane........................................... 5-5
Gasoline Specifications.................................. 5-5
Low Warning Light.......................................3-46
System Inspection.......................................6-24
Fuses
Engine Compartment Fuse Block...................5-79
Fuses and Circuit Breakers...........................5-77
Instrument Panel Fuse Block.........................5-77
Windshield Wiper.........................................5-76
5

G
Gage
Engine Coolant Temperature.........................3-40
Fuel..........................................................3-45
Speedometer..............................................3-31
Tachometer.................................................3-31
Gasoline
Octane........................................................ 5-5
Specifications............................................... 5-5
Glove Box.....................................................2-34
GM Mobility Reimbursement Program.................. 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-7
Headlamp
Aiming .......................................................5-38
Headlamp Wiring............................................5-76
Headlamps....................................................5-39
Bulb Replacement.......................................5-39
Daytime Running Lamps...............................3-13
Flash-to-Pass............................................... 3-8
Front Turn Signal Lamps..............................5-41Headlamps (cont.)
Halogen Bulbs............................................5-39
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-13
Parking Lamps............................................5-43
Heated Seats................................................... 1-4
Heater...................................................3-19, 3-22
Highbeam On Light.........................................3-44
Highway Hypnosis...........................................4-22
Hill and Mountain Roads..................................4-22
Hold Mode Light.............................................3-39
Hood
Checking Things Under................................5-11
Release.....................................................5-11
Horn ............................................................... 3-6
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-15
I
Ignition Positions.............................................2-18
Immobilizer....................................................2-16
Immobilizer Operation......................................2-16
Infants and Young Children, Restraints...............1-30
Inflation - Tire Pressure...................................5-52
6