2006 CHEVROLET OPTRA 5 air condition

{CAUTION:
An electric engine cooling fan under the hood
can start up even when the engine is not
running and can injure you. Keep hands,
clothing and tools away from any underhood
electric fan.
If the coolant inside the coolant surge tank is boiling, do
not do anything else until it cools down. The vehicle
should be parked on a level surface. Make sure that the
air conditioning is turned off.
The coolant level should be between the Minimum and
Maximum marks on the coolant surge tank when the
engine is cool. If it is not, you may have a leak at
the pressure cap or in the radiator hoses, heater hoses,
radiator, water pump, or somewhere else in the
cooling system.
{CAUTION:
Heater and radiator hoses, and other engine
parts, can be very hot. Do not touch them. If
you do, you can be burned.
Do not run the engine if there is a leak. If you
run the engine, it could lose all coolant. That
could cause an engine re, and you could be
burned. Get any leak xed before you drive the
vehicle.
If there seems to be no leak, with the engine on, check
to see if the electric engine cooling fan is running. If
the engine is overheating, the fan should be running. If
it is not, your vehicle needs service.
Notice:Engine damage from running your engine
without coolant is not covered by your warranty.
5-25

Brake Wear
Your vehicle has four-wheel disc brakes.
Disc brake pads have built-in wear indicators that make
a high-pitched warning sound when the brake pads
are worn and new pads are needed. The sound
may come and go or be heard all the time your vehicle
is moving, except when you are pushing on the
brake pedal firmly.
{CAUTION:
The brake wear warning sound means that
soon your brakes will not work well. That
could lead to an accident. When you hear the
brake wear warning sound, have your vehicle
serviced.
Notice:Continuing to drive with worn-out brake
pads could result in costly brake repair.Some driving conditions or climates may cause a brake
squeal when the brakes are first applied or lightly
applied. This does not mean something is wrong with
your brakes.
Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated, inspect
brake pads for wear and evenly tighten wheel nuts in
the proper sequence to GM torque specifications.
Brake linings should always be replaced as complete
axle sets.
SeeBrake System Inspection on page 6-23.
Brake Pedal Travel
See your dealer 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 of brake trouble.
Brake Adjustment
Every time you apply the brakes, with or without the
vehicle moving, your brakes adjust for wear.
5-33

Tire Size
The following illustration shows an example of a typical
passenger car tire size.
(A) Passenger (P-Metric) Tire:The United States
version of a metric tire sizing system. The letter P as the
first 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 70, as shown in item C of the
illustration, it would mean that the tire’s sidewall is
70% 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 range and the speed rating of a tire. The
load range represents the load carry capacity a tire is
certified to carry. The speed rating is the maximum
speed a tire is certified 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.
5-53

Wheel Replacement
Replace any wheel that is bent, cracked or badly rusted
or corroded. If wheel nuts keep coming loose, the
wheel, wheel bolts and wheel nuts should be replaced.
If the wheel leaks air, replace it (except some
aluminum wheels, which can sometimes be repaired).
See your dealer if any of these conditions exist.
Your dealer will know the kind of wheel you need.
Each new wheel should have the same load-carrying
capacity, diameter, width, offset and be mounted
the same way as the one it replaces.
If you need to replace any of your wheels, wheel bolts
or wheel nuts, replace them only with new GM
original equipment parts. This way, you will be sure to
have the right wheel, wheel bolts and wheel nuts
for your vehicle.{CAUTION:
Using the wrong replacement wheels, wheel
bolts, or wheel nuts on your vehicle can be
dangerous. It could affect the braking and
handling of your vehicle, make your tires lose
air and make you lose control. You could have
a collision in which you or others could be
injured. Always use the correct wheel, wheel
bolts and wheel nuts for replacement.
Notice:The wrong wheel can also cause problems
with bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper height,
vehicle ground clearance, and tire or tire chain
clearance to the body and chassis.
SeeChanging a Flat Tire on page 5-64for more
information.
5-62

Chemical Paint Spotting
Some weather and atmospheric conditions can create a
chemical fallout. Airborne pollutants can fall upon and
attack painted surfaces on the vehicle. This damage can
take two forms: blotchy, ring-shaped discolorations,
and small, irregular dark spots etched into the
paint surface.
Although no defect in the paint job causes this, GM will
repair, at no charge to the owner, the surfaces of
new vehicles damaged by this fallout condition within
12 months or 12,000 miles (20 000 km) of purchase,
whichever occurs first.
Vehicle Care/Appearance Materials
Description Usage
Polishing Cloth
Wax-TreatedInterior and exterior
polishing cloth.
Tar and Road Oil
RemoverRemoves tar, road oil and
asphalt.
Chrome Cleaner and
PolishUse on chrome or
stainless steel.
White Sidewall Tire
CleanerRemoves soil and black
marks from whitewalls.
Vinyl Cleaner Cleans vinyl.
Glass CleanerRemoves dirt, grime,
smoke and fingerprints.
Description Usage
Chrome and Wire Wheel
CleanerRemoves dirt and grime
from chrome wheels and
wire wheel covers.
Finish EnhancerRemoves dust,
fingerprints, and surface
contaminants. Spray on
wipe off.
Swirl Remover PolishRemoves swirl marks, fine
scratches and other light
surface contamination.
Cleaner WaxRemoves light scratches
and protects finish.
Foaming Tire Shine Low
GlossCleans, shines and
protects in one easy step,
no wiping necessary.
Wash Wax ConcentrateMedium foaming
shampoo. Cleans and
lightly waxes.
Biodegradable and
phosphate free.
Spot LifterQuickly and easily
removes spots and stains
from carpets, vinyl and
cloth upholstery.
Odor EliminatorOdorless spray odor
eliminator used on fabrics,
vinyl, leather and carpet.
5-80

Fuses Usage
TRN SIG
LAMPSTurn Signal Lamps
ABS Anti-lock Brake System
LTR Cigarette Lighter
CLSTR BTSICluster, Brake Transmission Shift
Interlock/Automatic Transaxle Shift
Lock (BTSI) Solenoid
RKE Remote Keyless Entry
BCK/UP Back-up
BLANK Not Used
TCM Transmission Control Module
BLANK Not Used
ENG FUSE
BOX DRLEngine Fuse Box, Daytime Running
Lamps
HAZRD LAMPS Hazard Lamps
A/C CLK Air Conditioning Switch, Clock
HVACHeating, Ventilation and Air
Conditioning
RKE Remote Keyless Entry
RADIO Radio
S/ROOF Sunroof
DLC Data Link Connector
SPARE SpareEngine Compartment Fuse Block
The engine compartment fuse block is located on the
driver’s side of the vehicle, near the battery. SeeEngine
Compartment Overview on page 5-12for more
information on location. To access the fuses, press in
the top flap to release the cover.
To reinstall the cover, push the cover until it is secure.
5-85

Fuses Usage
HEAD LAMPS Headlamps
ECM Engine Control Module
I/P FUSE Instrument Panel FuseFuses Usage
FUEL PUMP Fuel Pump
A/C Air Conditioning
HORN Horn
5-86

Fuses Usage
HI BEAM Headlamp High-Beam
DRIVER’S
PWR WNDWDriver’s Power Window
STOP LAMPS Stoplamps
DR/LCK Door Lock
MIR HTD Heated Mirror
FRT FOG Front Fog
ILLUM LTLicense Plate Lamp, Parking
Lamp Left
INJ Injector
ENG SNSREvaporative Emission (EVAP)
Canister Purge Solenoid, Heated
Oxygen Sensor (HO2S), Cooling
Fan Relay, CMP Sensor
LOW BEAM LT Headlamp Low-Beam Left
ILLUM RTIllumination Circuit, Parking Lamp
Right
LOW BEAM RT Headlamp Low-Beam Right
SPARE Spare
SPARE Spare
SPARE Spare
BATT PWR Battery Power
ABS Anti-lock Brake System
HVAC BLWR HVAC BlowerFuses Usage
IGN 2 Ignition 2
IGN 1 Ignition 1
FUSE PLR Fuse Puller
COOL FAN
LOWCooling Fan Low
DEFOG Defog
COOL FAN HI Cooling Fan High
PWR WNDW Power Window
Relays Usage
COOL FAN
LOWCooling Fan Low
FRT FOG Front Fog
ILLUM Illumination Relay
A/C CMPRSR Air Conditioning Compressor
HORN Horn
DEFOG Defog
FUEL PUMP Fuel Pump
MAIN Main Relay
COOL FAN HI Cooling Fan High
PWR WNDW Power Window
HEAD LAMPS Headlamp Relay
5-87