2008 CHEVROLET AVEO transmission

Hold Mode Light
If your vehicle has this
feature, this light comes
on when the hold mode
is active.
If the HOLD mode light flashes, have your vehicle
checked. See “Hold Mode” underAutomatic
Transmission Operation on page 2-21for more
information.
Engine Coolant Temperature Gage
Your vehicle has an engine coolant temperature gage.
With the ignition turned to ON/RUN, this gage shows
the engine coolant temperature.
If the gage pointer moves into the red area, your
engine is too hot. It means that your engine coolant
has overheated.
If you have been operating your vehicle under normal
driving conditions, you should pull off the road, stop your
vehicle and turn off the engine as soon as possible.
SeeEngine Overheating on page 5-25.
United States HatchbackCanada Hatchback
United States SedanCanada Sedan
3-35

Notice:Modications made to the engine,
transmission, exhaust, intake, or fuel system of your
vehicle or replacement tires that do not match your
vehicle’s original tires can affect your vehicle’s
emission controls and can cause this light to come
on. Modications to these systems could lead to
costly repairs not covered by your warranty. This
could also result in a failure to pass a required
Emission Inspection/Maintenance test. See
Accessories and Modifications on page 5-3.
When the ignition is turned to ON/RUN, this light comes
on and should go out after a few seconds as a check
to show it is working. If the light does not come on, have
it repaired. This light also comes on during a malfunction
in one of two ways:
•Light Flashing— A misfire condition has been
detected. A misfire increases vehicle emissions
and could damage the emission control system
on your vehicle. Diagnosis and service might
be required.
•Light On Steady— An emission control system
malfunction has been detected on your vehicle.
Diagnosis and service might be required.
If the Light Is Flashing
The following can prevent more serious damage to your
vehicle:
•Reduce vehicle speed.
•Avoid hard accelerations.
•Avoid steep uphill grades.
If the light stops flashing and remains on steady,
see “If the Light Is On Steady” following.
If the light continues to flash, when it is safe to do so,
stop the vehicle. Find a safe place to park your vehicle.
Turn the key off, wait at least 10 seconds and restart the
engine. If the light remains on steady, see “If the Light Is
On Steady” following. If the light is still flashing, follow the
previous steps, and see your dealer/retailer for service as
soon as possible.
3-37

Antilock Brake System
Warning Light
For vehicles with
the Antilock Brake
System (ABS), this
light will come on briefly
when the engine is started.
If it does not come on have your vehicle serviced.
If the light stays on, turn the ignition to LOCK/OFF.
If the light comes on, stop as soon as possible and turn
the ignition off. Then start the engine again to reset the
system. If the light still stays on, or comes on again while
you are driving, your vehicle needs service. See your
dealer/retailer. If the regular brake system warning light is
not on, you still have brakes, but you do not have antilock
brakes. If the regular brake system warning light is also
on, you do not have antilock brakes and there is a
problem with your regular brakes. SeeBrake System
Warning Light on page 3-33.
Hold Mode Light
If your vehicle has this
feature, this light comes
on when the hold mode is
active.
If the HOLD mode light flashes, have your vehicle
checked. See “Hold Mode” underAutomatic
Transmission Operation on page 2-21for more
information.
3-48

Malfunction Indicator Lamp
Check Engine Light
A computer system called OBD II (On-Board
Diagnostics-Second Generation) monitors operation of
the fuel, ignition, and emission control systems. It makes
sure that emissions are at acceptable levels for the life of
the vehicle, helping to produce a cleaner environment.
The check engine light
comes on to indicate
that there is an OBD II
problem and service
is required.
Malfunctions often are indicated by the system before
any problem is apparent. This can prevent more serious
damage to your vehicle. This system is also designed
to assist your service technician in correctly diagnosing
any malfunction.
Notice:If you keep driving your vehicle with
this light on, after a while, the emission controls
might not work as well, your vehicle’s fuel economy
might not be as good, and the engine might not
run as smoothly. This could lead to costly repairs
that might not be covered by your warranty.Notice:Modications made to the engine,
transmission, exhaust, intake, or fuel system
of your vehicle or replacement tires that do not
match your vehicle’s original tires can affect your
vehicle’s emission controls and can cause this light
to come on. Modications to these systems could
lead to costly repairs not covered by your warranty.
This could also result in a failure to pass a required
Emission Inspection/Maintenance test. See
Accessories and Modifications on page 5-3.
When the ignition is turned to ON/RUN, this light comes
on and should go out after a few seconds as a check
to show it is working. If the light does not come on, have
it repaired. This light also comes on during a malfunction
in one of two ways:
•Light Flashing— A misfire condition has been
detected. A misfire increases vehicle emissions
and could damage the emission control system
on your vehicle. Diagnosis and service might
be required.
•Light On Steady— An emission control system
malfunction has been detected on your vehicle.
Diagnosis and service might be required.
3-49

Before Leaving on a Long Trip
To prepare your vehicle for a long trip, consider having
it serviced by your dealer/retailer before departing.
Things to check on your own include:
•Windshield Washer Fluid:Reservoir full?
Windows clean — inside and outside?
•Wiper Blades:In good shape?
•Fuel, Engine Oil, Other Fluids:All levels checked?
•Lamps:Do they all work and are lenses clean?
•Tires:Are treads good? Are tires inflated to
recommended pressure?
•Weather and Maps:Safe to travel?
Have up-to-date maps?
Highway Hypnosis
Always be alert and pay attention to your surroundings
while driving. If you become tired or sleepy, find a
safe place to park your vehicle and rest.
Other driving tips include:
•Keep the vehicle well ventilated.
•Keep interior temperature cool.
•Keep your eyes moving — scan the road ahead
and to the sides.
•Check the rearview mirror and vehicle
instruments often.
Hill and Mountain Roads
Driving on steep hills or through mountains is different
than driving on flat or rolling terrain. Tips for driving
in these conditions include:
•Keep your vehicle serviced and in good shape.
•Check all fluid levels and brakes, tires, cooling
system, and transmission.
•Going down steep or long hills, shift to a lower gear.
{CAUTION:
If you do not shift down, the brakes could
get so hot that they would not work well.
You would then have poor braking or even
none going down a hill. You could crash.
Shift down to let the engine assist the brakes
on a steep downhill slope.
4-12

Then, shut the engine off and close the window almost
all the way to preserve the heat. Start the engine again
and repeat this only when you feel really uncomfortable
from the cold. But do it as little as possible. Preserve the
fuel as long as you can. To help keep warm, you can get
out of the vehicle and do some fairly vigorous exercises
every half hour or so until help comes.
If Your Vehicle is Stuck in Sand,
Mud, Ice, or Snow
Slowly and cautiously spin the wheels to free your
vehicle when stuck in sand, mud, ice, or snow. See
Rocking Your Vehicle to Get It Out on page 4-17.
{CAUTION:
If you let your vehicle’s tires spin at high
speed, they can explode, and you or others
could be injured. The vehicle can overheat,
causing an engine compartment re or other
damage. Spin the wheels as little as possible
and avoid going above 35 mph (55 km/h) as
shown on the speedometer.
For information about using tire chains on your vehicle,
seeTire Chains on page 5-69.
Rocking Your Vehicle to Get It Out
First, turn the steering wheel left and right to clear
the area around the front wheels. Then shift back
and forth between REVERSE (R) and a forward gear,
or with a manual transmission, between FIRST (1)
or SECOND (2) and REVERSE (R), spinning the wheels
as little as possible. To prevent transmission wear,
wait until the wheels stop spinning before shifting gears.
Release the accelerator pedal while you shift, and
press lightly on the accelerator pedal when the
transmission is in gear. By slowly spinning the wheels
in the forward and reverse directions, you will cause
a rocking motion that could free your vehicle. If that
does not get your vehicle out after a few tries, it might
need to be towed out. If your vehicle does need to
be towed out, seeTowing Your Vehicle on page 4-27.
4-17

Dolly Towing
Notice:Towing your vehicle from the rear with the
front wheels on the ground could cause transmission
damage. Do not tow the vehicle from the rear with
the front wheels on the road.
Your vehicle can be towed using a dolly. To tow your
vehicle using a dolly, follow these steps:
1. Put the front wheels on a dolly.
2. Put an automatic transmission in PARK (P)
or a manual transmission in NEUTRAL (N).3. Set the parking brake and remove the key.
4. For an automatic transmission, insert the key
into the shift-lock release slot. SeeShifting
Out of PARK (P) on page 2-28.
5. Shift to NEUTRAL (N).
6. Clamp the steering wheel in a straight-ahead
position.
7. Release the parking brake.
Towing a Trailer
Do not use your vehicle to tow a trailer. The vehicle
is not designed or intended for such a use. Towing
a trailer can adversely affect handling, durability
and fuel economy.
4-28

Service............................................................5-3
Accessories and Modifications..........................5-3
California Proposition 65 Warning.....................5-4
California Perchlorate Materials Requirements.....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..............................................5-7
Filling a Portable Fuel Container.......................5-9
Checking Things Under the Hood....................5-10
Hood Release..............................................5-10
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-13
Engine Air Cleaner/Filter................................5-17
Automatic Transmission Fluid.........................5-19
Manual Transmission Fluid.............................5-21
Hydraulic Clutch...........................................5-21
Engine Coolant.............................................5-22
Coolant Surge Tank Pressure Cap..................5-25
Engine Overheating.......................................5-25
Cooling System............................................5-26Power Steering Fluid.....................................5-30
Windshield Washer Fluid................................5-31
Brakes........................................................5-32
Battery........................................................5-35
Jump Starting...............................................5-36
Headlamp Aiming...........................................5-40
Bulb Replacement..........................................5-41
Halogen Bulbs
..............................................5-41
Headlamps (Hatchback).................................5-41
Headlamps (Sedan)......................................5-42
Front Turn Signal and Parking Lamps
(Hatchback)..............................................5-43
Front Turn Signal and Parking Lamps (Sedan).....5-44
Turn Signal Lamps (Side)..............................5-45
Center High-Mounted Stoplamp (CHMSL)
(Sedan)...................................................5-46
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps.........................................5-47
License Plate Lamp......................................5-48
Replacement Bulbs.......................................5-48
Windshield Wiper Blade Replacement..............5-49
Tires..............................................................5-50
Tire Sidewall Labeling...................................5-51
Tire Terminology and Definitions.....................5-54
Inflation - Tire Pressure.................................5-57
Tire Pressure Monitor System.........................5-58
Tire Pressure Monitor Operation.....................5-60
Section 5 Service and Appearance Care
5-1