window SATURN ASTRA 2009 Owner's Guide
[x] Cancel search | Manufacturer: SATURN, Model Year: 2009, Model line: ASTRA, Model: SATURN ASTRA 2009Pages: 314, PDF Size: 1.94 MB
Page 208 of 314

Rear disc brake pads do not have
built-in brake pad wear indicators.
Periodic visual inspection of the rear
brake pads is required to determine
when to replace the pads. Visually
inspect the rear brake pads
whenever the rear wheels are
removed such as during tire rotation.
1. Set the parking brake and make
sure that the brakes have been
given enough time to cool.
2. Remove the rear wheels.
3. Visually inspect the rear brake
inner pads (C) at each rear
wheel through the inspection
window in the brake caliper (A).Brake pads should be replaced
when the inner pad (C) is
worn to 5/64 in (2 mm) of pad
thickness (B). New brake pads,
with no wear, are 25/64 of
an inch (10 mm) thick.
4. After brake pad inspection or
replacement, install the rear
wheels.
Some driving conditions or climates
can cause a brake squeal when
the brakes are rst applied or
lightly applied. This does not mean
something is wrong with the brakes.Properly torqued wheel bolts are
necessary to help prevent brake
pulsation. When tires are rotated,
inspect brake pads for wear
and evenly tighten wheel bolts in
the proper sequence to torque
speci cations inCapacities
and Specifications on page 10-2.
Brake linings should always
be replaced as complete axle sets.
Brake Pedal Travel
See your dealer/retailer if the brake
pedal does not return to normal
height, or if there is a rapid increase
in pedal travel. This could be a
sign that brake service might
be required.
Brake Adjustment
Every brake stop, the disc brakes
adjust for wear.
9-24 Vehicle Service and Care
ProCarManuals.com
Page 222 of 314

FusesUsage
1 Front Power Window
3 ClusterFuses Usage
4 Climate Control
System (Battery)
11 Rear DefoggerFuses Usage
12 Rear Windshield Wiper
14 Climate Control
System (Ignition)
9-38 Vehicle Service and Care
ProCarManuals.com
Page 223 of 314

Fuses Usage
16Front Passenger Seat
Detection Sensor
17Tire Pressure
Monitoring
System (TPMS)/Rain
Sensor/Inside
Rearview Mirror
18 Interior Lights
21 Outside Mirror Heating
22 Sunroof
23 Rear Power Window
24Diagnostic Link
Connector
29Accessory Power
Outlet (APO)
34 Sunroof
38 Door Locks
39 Seat Heating Driver
40Seat Heating Front
Passenger
Vehicle Service and Care 9-39
ProCarManuals.com
Page 228 of 314

Tire Size
The following illustration shows
an example of a typical
passenger vehicle tire size.
(A) Passenger (P-Metric) Tire
:The United States version of
a metric tire sizing system.
The letter P as the rst
character in the tire size
means a passenger vehicle tire
engineered to standards set
by the U.S. Tire and Rim
Association.
(B) Tire Width
:The three-digit
number indicates the tire
section width in millimeters from
sidewall to sidewall.
(C) Aspect Ratio
:A two-digit
number that indicates the tire
height-to-width measurements.For example, if the tire size
aspect ratio is 60, as shown in
item C of the illustration, it would
mean that the tire’s sidewall is
60 percent as high as it is wide.
(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 index and speed rating
of the tire. The load index
represents the load carry
capacity a tire is certi ed to
carry. The speed rating is the
maximum speed a tire is certi ed
to carry a load.
Tire Terminology and
De nitions
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.
9-44 Vehicle Service and Care
ProCarManuals.com