Transmission SATURN ASTRA 2008 Owner's Manual

Page 212 of 304

Brakes
Brake Fluid
The brake master cylinder and, on
manual transmission vehicles,
the clutch hydraulic system use the
same reservoir. The reservoir is
lled with DOT-4 brake uid.
SeeEngine Compartment Overview
on page 9-6for the location of
the reservoir.
There are only two reasons why the
brake uid level in the reservoir
might go down. The rst is that the
brake uid goes down to an
acceptable level during normal
brake lining wear. When new linings
are put in, the uid level goes
back up. The other reason is that
uid is leaking out of the brake
or clutch hydraulic system. If it is,have the brake or clutch hydraulic
system xed, since a leak means
that sooner or later the brakes
or clutch will not work well.
It is not a good idea to top off the
brake uid. Adding brake uid
will not correct a leak. If uid is
added when the linings are worn,
there will be too much uid
when new brake linings are
installed. Add or remove brake uid,
as necessary, only when work is
done on the brake or clutch
hydraulic system.
{CAUTION
If your vehicle has too much
brake uid, it can spill on the
engine. The uid will burn if the
engine is hot enough. You or
others could be burned, and
your vehicle could be damaged.
Add brake uid only when work
is done on the brake and/or
clutch hydraulic system.Refer to “Scheduled Maintenance”
in the Limited Warranty,
Maintenance and Owner Assistance
Information manual to determine
when to check the brake uid.
Checking Brake Fluid
The brake uid can be checked
without taking off the cap by looking
at the brake uid reservoir.
The uid level should be above
MIN. If it is not, have your brake
hydraulic system checked to see
if there is a leak. After work is done
on the brake hydraulic system,
make sure the level is above the
MIN but not over the MAX mark.
What to Add
When you do need brake uid,
use only DOT-4 brake uid.
It is recommended that you ush
the brake hydraulic system and
rell it with new DOT-4 uid
at a regular maintenance service
every two years. See “Additional
9-22 Vehicle Service and Care
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Fuses Usage
8 Horn
10 Door Locks
13 Foglamps
14Windshield Wipers
(high speed)
15Windshield Wipers
(low speed)
16Antilock Brake System,
Brake Lamp Switch
17 Vacuum Pump
18 Starter
20 Air Conditioning Clutch
21Engine Control
Module (ECM)
(Main Relay)
22 ECM (Battery)
24 Fuel Pump/InjectorsFuses Usage
26ECM (Sensor and
Actuators)
27 Power Steering
28Automatic
Transmission (Battery)
29Automatic
Transmission (Ignition)
30 ECM (Ignition)
32 Brake Switch
34Steering Column
Module
35 Radio
36OnStar™ Module/
OnStar™ Interface
Module/DisplayRear Compartment Fuse
Block
To open the liftgate, SeeLiftgate on
page 2-6.
The rear compartment fuse block is
located on the left side of the
cargo area behind a cover.
9-36 Vehicle Service and Care
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Page 233 of 304

(D) Construction Code:A letter code is used to indicate
the type of ply construction in
the tire. The letter R means
radial ply construction; the
letter D means diagonal or
bias ply construction; and the
letter B means belted-bias
ply construction.
(E) Rim Diameter
:Diameter of
the wheel in inches.
(F) Service Description
:These characters represent the
load range and speed rating
of the tire. The load index
represents the load carry
capacity a tire is certied to
carry. The load index can range
from 1 to 279. The speed
rating is the maximum speed a
tire is certied to carry a load.
Speed ratings range from A to Z.
Tire Terminology and
Denitions
Air Pressure:The amount of
air inside the tire pressing
outward on each square inch
of the tire. Air pressure is
expressed in pounds per square
inch (psi) or kilopascal (kPa).
Accessory Weight
:This means
the combined weight of optional
accessories. Some examples
of optional accessories are,
automatic transmission, power
steering, power brakes, power
windows, power seats, and air
conditioning.
Aspect Ratio
:The relationship
of a tire’s height to its width.
Belt
:A rubber coated layer of
cords that is located between the
plies and the tread. Cords may
be made from steel or other
reinforcing materials.Bead
:The tire bead contains
steel wires wrapped by steel
cords that hold the tire onto
the rim.
Bias Ply Tire
:A pneumatic tire
in which the plies are laid at
alternate angles less than
90 degrees to the centerline of
the tread.
Cold Tire Pressure
:The
amount of air pressure in a
tire, measured in pounds
per square inch (psi) or
kilopascals (kPa) before a tire
has built up heat from driving.
SeeInflation - Tire Pressure on
page 9-46.
Curb Weight
:The weight of a
motor vehicle with standard
and optional equipment including
the maximum capacity of fuel,
oil, and coolant, but without
passengers and cargo.
Vehicle Service and Care 9-43
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Tire Changing
If a Tire Goes Flat
It is unusual for a tire to blowout
while you are driving, especially if
you maintain your vehicle’s tires
properly. If air goes out of a tire, it is
much more likely to leak out slowly.
But if you should ever have a
blowout, here are a few tips about
what to expect and what to do:
If a front tire fails, the at tire creates
a drag that pulls the vehicle toward
that side. Take your foot off the
accelerator pedal and grip the
steering wheel rmly. Steer to
maintain lane position, and then
gently brake to a stop well out of the
traffic lane.
A rear blowout, particularly on a
curve, acts much like a skid and
may require the same correction you
would use in a skid. In any rear
blowout remove your foot from the
accelerator pedal. Get the vehicle
under control by steering theway you want the vehicle to go.
It may be very bumpy and noisy, but
you can still steer. Gently brake to
a stop, well off the road if possible.
{CAUTION
Lifting a vehicle and getting
under it to do maintenance or
repairs is dangerous without the
appropriate safety equipment
and training. The jack provided
with your vehicle is designed
only for changing a at tire. If it
is used for anything else, you or
others could be badly injured or
killed if the vehicle slips off the
jack. Use the jack provided with
your vehicle only for changing a
at tire.
If a tire goes at, the next part
shows how to use the jacking
equipment to change a at tire
safely.
Changing a Flat Tire
If a tire goes at, avoid further tire
and wheel damage by driving slowly
to a level place. Turn on the
hazard warning ashers.
{CAUTION
Changing a tire can be
dangerous. The vehicle can slip
off the jack and roll over or fall
on you or other people. You and
they could be badly injured or
even killed. Find a level place
to change your tire. To help
prevent the vehicle from
moving:
1. Set the parking brake
rmly.
2. Put an automatic
transmission shift lever in
P (Park), or shift a manual
transmission to 1 (First) or
R (Reverse).
(Continued)
9-60 Vehicle Service and Care
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Page 258 of 304

Jump Starting
If your battery has run down, try to
use another vehicle and some
jumper cables to start your vehicle.
Be sure to use the following steps
to do it safely.
{CAUTION
Batteries can hurt you. They
can be dangerous because:
They contain acid that can
burn you.
They contain gas that can
explode or ignite.
They contain enough
electricity to burn you.
If you do not follow these steps
exactly, some or all of these
things can hurt you.Notice:Ignoring these steps
could result in costly damage to
your vehicle that would not
be covered by your warranty.
Trying to start your vehicle by
pushing or pulling it will not work,
and it could damage your vehicle.
1. Check the other vehicle. It must
have a 12-volt battery with a
negative ground system.
Notice:If the other vehicle’s
system is not a 12-volt system
with a negative ground, both
vehicles can be damaged. Only
use vehicles with 12-volt systems
with negative grounds to jump
start your vehicle.
2. Get the vehicles close enough
so the jumper cables can
reach, but be sure the vehicles
are not touching each other.
If they are, it could cause
a ground connection you do not
want. You would not be able
to start your vehicle, and the bad
grounding could damage the
electrical systems.To avoid the possibility of the
vehicles rolling, set the parking
brake rmly on both vehicles
involved in the jump start
procedure. Put an automatic
transmission in PARK (P)
or a manual transmission in
NEUTRAL before setting
the parking brake.
Notice:If you leave your radio or
other accessories on during the
jump starting procedure, they
could be damaged. The repairs
would not be covered by your
warranty. Always turn off your
radio and other accessories when
jump starting your vehicle.
3. Turn off the ignition on both
vehicles. Unplug unnecessary
accessories plugged into the
cigarette lighter or the accessory
power outlet. Turn off the radio
and all lamps that are not needed.
This will avoid sparks and help
save both batteries. And it could
save the radio!
9-68 Vehicle Service and Care
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Page 274 of 304

Capacities and Specications
The following approximate capacities are given in English and metric conversions. See “Fluids and Lubricants” in the
index of the “Limited Warranty, Maintenance and Owner Assistance Information” manual.
ApplicationCapacities
English Metric
Air Conditioning Refrigerant For the air conditioning system refrigerant charge amount, see the refrigerant caution label located
under the hood. See your dealer/retailer for more
information.
Cooling System Automatic Transmission 6.2 qt 5.9 L
Manual Transmission 7.3 qt 6.9 L
Engine Oil with Filter 4.8 qt 4.5 L
Fuel Tank 11.9 gal 45.0 L
Transmission Fluid Automatic Transmission 4.2 qt 4.0 L
Manual Transmission 1.6 qt 1.5 L
Wheel Bolt Torque 81 lb ft 110 Y
All capacities are approximate. When adding, be sure to ll to the approximate level, as recommended in this
manual.
10-2 Technical Data
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Engine Specications
Engine VIN Code Transmission Spark Plug Gap
1.8L L4 1 Automatic
Manual 0.035 in (0.90 mm)
Technical Data 10-3
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Page 291 of 304

Owner Publications
Information on how to obtain
product bulletins and as described
below is applicable only in the
fty U.S. states and the District
of Columbia, and only for cars and
light trucks with a Gross Vehicle
Weight Rating (GVWR) less
than 10,000 pounds (4 536 kg).
Copies of individual bulletins
are also at your participating Saturn
retailer. You can ask to see them.
In Canada, information relating
to product service bulletins can
be obtained by contacting your
Saturn retailer.
Service Bulletins
Saturn regularly sends its retailers
useful service bulletins about Saturn
products. Saturn monitors product
performance in the eld. We then
prepare bulletins for servicing our
products better. You can get these
bulletins, too.Bulletins cover various subjects.
Some pertain to the proper use and
care of your vehicle. Some describe
costly repairs. Others describe
inexpensive repairs which, if done on
time with the latest parts, may avoid
future costly repairs.
Some bulletins tell a technician how
to repair a new or unexpected
condition. Others describe a quicker
way to x your vehicle. They can
help a technician service your
vehicle better.
Most bulletins apply to conditions
affecting a small number of vehicles.
Your Saturn retailer or a qualied
technician may have to determine
if a specic bulletin applies to
your vehicle. To order Saturn
bulletins, call Saturn Publications
at 1-800-2-SATURN or visit
saturn-publications.com to order
online.
Vehicle Data
Recording and
Privacy
Your Saturn vehicle has a number of
sophisticated computers that record
information about the vehicle’s
performance and how it is driven.
For example, your vehicle uses
computer modules to monitor and
control engine and transmission
performance, to monitor the
conditions for airbag deployment and
deploy airbags in a crash and, if so
equipped, to provide antilock braking
to help the driver control the vehicle.
These modules may store data to
help your dealer/retailer technician
service your vehicle. Some modules
may also store data about how you
operate the vehicle, such as rate of
fuel consumption or average speed.
These modules may also retain the
owner’s personal preferences, such
as radio pre-sets, seat positions, and
temperature settings.
Customer Information 11-15
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Page 295 of 304

A
Accessories and
Modications...................... 9-3
Accessory Power Outlets......4-10
Adding Equipment to Your
Airbag-Equipped Vehicle....1-35
Additives, Fuel.....................8-36
Add-On Electrical
Equipment.......................9-33
Air Cleaner/Filter, Engine.......9-11
Air Conditioning..................... 7-1
Airbag
Passenger Status
Indicator.......................4-15
Readiness Light................4-14
System, Replacing Parts
After a Crash................1-36
Airbag System.....................1-23
Adding Equipment to Your
Airbag-Equipped
Vehicle........................1-35
Check.............................1-36
How Does an Airbag
Restrain?.....................1-28
Servicing Your
Airbag-Equipped
Vehicle........................1-34Airbag System (cont.)
What Makes an Airbag
Inate?........................1-28
What Will You See After
an Airbag Inates?........1-29
When Should an Airbag
Inate?........................1-27
Where Are the
Airbags?..............1-25, 1-30
Antenna, Fixed Mast............6-25
Antilock Brake
System (ABS)..................8-18
Anti-lock Brake, System
Warning Light...................4-18
Appearance Care
Chemical Paint Spotting.....9-79
Exterior Cleaning..............9-75
Finish Damage.................9-79
Interior Cleaning...............9-72
Sheet Metal Damage........9-78
Underbody Maintenance....9-79
Vehicle Care/Appearance
Materials
......................9-80
Appointments, Scheduling
Service...........................11-8Audio System........................ 6-1
Audio Steering Wheel
Controls.......................6-24
Fixed Mast Antenna..........6-25
Radio Reception...............6-25
Theft-Deterrent Feature......6-24
Audio System(s).................... 6-2
Automatic Transmission
Fluid...............................9-12
Operation.......................... 8-5
B
Battery...............................9-25
Run-Down Protection.......... 5-4
Brakes...............................9-22
System Warning Light.......4-17
Braking...............................8-17
Break-In, New Vehicle............ 8-2
Bulb Replacement................9-28
Front Turn Signal Lamps . . . 9-28
Halogen Bulbs..................9-28
Headlamp Aiming..............9-26
License Plate Lamps.........9-32
Replacement Bulbs...........9-33
Taillamps.................9-29, 9-30
Buying New Tires.................9-54
INDEX i-1
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F
Filter
Engine Air Cleaner............9-11
Finish Damage....................9-79
Fixed Mast Antenna.............6-25
Flashers, Hazard Warning....... 4-4
Flash-to-Pass........................ 4-8
Flat Tire..............................9-60
Flat Tire, Changing...............9-60
Flat Tire, Storing..................9-66
Fluid..................................9-12
Automatic Transmission.....9-12
Power Steering.................9-20
Windshield Washer...........9-20
Fog Lamp
Fog .................................. 5-2
Fog Lamp Light...................4-23
Fuel...................................8-35
Additives.........................8-36
California Fuel..................8-35
Filling a Portable Fuel
Container.....................8-38
Filling the Tank.................8-37
Fuels in Foreign
Countries.....................8-36Fuel (cont.)
Gage ..............................4-25
Gasoline Octane...............8-35
Gasoline Specications......8-35
Low Warning Light............4-25
Fuses.................................9-34
Engine Compartment
Fuse Block...................9-34
Rear Compartment
Fuse Block...................9-36
Windshield Wiper..............9-34
G
Gage
Fuel................................4-25
Speedometer...................4-13
Tachometer......................4-13
Gasoline
Octane............................8-35
Specications...................8-35
Glove Box............................ 3-1
GM Mobility
Reimbursement
Program..........................11-5
H
Hazard Warning Flashers........ 4-4
Head Restraints..................... 1-5
Headlamp
Aiming ............................9-26
Headlamp Wiring.................9-33
Headlamps
Bulb Replacement.............9-28
Daytime Running Lamps..... 5-2
Delayed............................ 5-2
Exterior Lamps................... 5-1
Flash-to-Pass..................... 4-8
Front Turn Signal Lamps . . . 9-28
Halogen Bulbs..................9-28
High/Low Beam Changer..... 4-8
Heater................................. 7-1
Engine.............................. 8-4
Height Adjuster, Seat.............. 1-2
Highbeam On Light..............4-24
High-Speed Operation,
Tires...............................9-47
Highway Hypnosis................8-26
Hill and Mountain Roads.......8-26
i-4 INDEX
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