2003 CHEVROLET CAVALIER heater

{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can boil
before the proper coolant mixture will. Your
vehicle's coolant warning system is set for the
proper coolant mixture. With plain water or the
wrong mixture, your engine could get too hot
but you wouldn't get the overheat warning.
Your engine could catch ®re and you or others
could be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
žcoolant.
Notice:In cold weather, water can freeze and crack
the engine, radiator, heater core and other parts.
Use the recommended coolant and the proper
coolant mixture.
{CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol
and it will burn if the engine parts are hot
enough. Don't spill coolant on a hot engine.
1. Park the vehicle on a level surface. You can
remove the coolant surge tank pressure cap
when the cooling system, including the coolant
surge tank pressure cap and upper radiator hose, is
no longer hot. Turn the pressure cap slowly
counterclockwise (left) about two or two and
one-half turns. If you hear a hiss, wait for that to
stop. This will allow any pressure still left to
be vented out the discharge hose.
5-30

Fuses Usage
CRUISE Cruise Control Module/Switch
ABS Anti-Lock Brake (Ignition)
APO Accessory Power Outlet
RFA BATT Remote Keyless Entry System
MIR/DLCPower Mirror/Diagnostic Link
Connector
LT HDLP Left Headlamp
RDO/INTLP Radio, Interior Lamps, OnStar
ž
RT HDLP Right Headlamps
CLSTR Instrument Panel Cluster
EXT LP Exterior Lamps
CIG Cigarette Lighter
FOG Fog Lamps
HORN Horn
Blank Not Used
Blank Not Used
Fuses Usage
STOP/HZD Stop Lamps, Hazard Lamps
Blank Not Used
Blank Not Used
RR DEFOG Rear Window Defogger
PWR ACC Power Door Locks
Blank Not Used
Blank Not Used
Blank Not Used
O2 HTR Oxygen Sensor Heater
HVAC Climate Control System
WIPER Windshield Wiper
BCM Body Control Module
AMPL Audio Ampli®er
PWR WDO Power Windows, Sunroof
RELAY DRL Daytime Running Lamps (Relay)
Blank Not Used
5-83

Engine Compartment Fuse Block
The engine compartment fuse block is located on the
driver's side of the vehicle. Lift off the cover to check the
fuses. See
Engine Compartment Overview on
page 5-12for more information on location.
Fuses Usage
IGN Ignition Switch Circuits
BATT 1Exterior Lamps, Power Outlet, Horn,
Audio Ampli®er
BATT 2Rear Defogger, Starter, Power
Locks, Stoplamp
ABS Anti-Lock Brake System
COOLING FAN Engine Cooling Fan
PCM/HVACPowertrain Control Module, Heater
and A/C Blower
CRNK Starter
BLO Heater and A/C Blower
PCM Powertrain Control Module
A/C A/C Compressor
A/C A/C Compressor
FUEL PUMP Fuel Pump
CRNK Starter
COOLING/FAN Engine Cooling Fan
HEATER
BLOWERHeater and A/C Blower
5-84

Checking Coolant............................................5-23
Checking Engine Oil........................................5-14
Checking Things Under the Hood......................5-10
Checking Your Restraint Systems......................1-58
Check...........................................................3-30
Engine Light...............................................3-30
Gages Warning Light...................................3-34
Chemical Paint Spotting...................................5-77
Child Restraints..............................................1-35
Child Restraint Systems...............................1-35
Infants and Young Children...........................1-32
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-41
Older Children.............................................1-29
Securing a Child Restraint Designed for
the LATCH System...................................1-43
Securing a Child Restraint in a Rear
Seat Position...........................................1-43
Securing a Child Restraint in the Right
Front Seat Position...................................1-46
Top Strap Anchor Location............................1-40
Top Strap...................................................1-39
Where to Put the Restraint...........................1-38
Chime Level Adjustment..................................3-79
Cigarette Lighter.............................................3-16
Cleaning Aluminum or Chrome-Plated Wheels.....5-76
Cleaning Exterior Lamps/Lenses.......................5-75
Cleaning Fabric/Carpet....................................5-71
Cleaning Glass Surfaces..................................5-73Cleaning Interior Plastic Components.................5-73
Cleaning the Top of the
Instrument Panel.........................................5-73
Cleaning Tires................................................5-77
Cleaning Vinyl................................................5-73
Cleaning Windshield and Wiper Blades..............5-76
Cleaning........................................................5-71
Inside of Your Vehicle..................................5-71
Outside of Your Vehicle................................5-74
Underbody Maintenance...............................5-77
Weatherstrips..............................................5-74
Climate Control System...................................3-17
Outlet Adjustment........................................3-20
Clutch, Hydraulic.............................................5-21
Compact Disc Messages.................3-48, 3-63, 3-75
Compact Spare Tire........................................5-70
Content Theft-Deferrent....................................2-15
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-36
Coolant.........................................................3-29
Engine Temperature Gage............................3-29
Heater, Engine............................................2-21
Low Warning Light.......................................3-30
Surge Tank Pressure Cap.............................5-24
Cooling System..............................................5-27
Cruise Control.................................................. 3-8
Cupholder(s)..................................................2-35
Current and Past Model Order Forms................7-11
3

Emissions Inspection and Maintenance
Programs...................................................3-32
Engine Compartment Fuse Block......................5-84
Engine Coolant Level Check.............................6-19
Engine Cooling When Trailer Towing..................4-40
Engine Oil Additives........................................5-17
Engine Oil Level Check...................................6-19
Engine..........................................................5-18
Air Cleaner/Filter.........................................5-18
Battery.......................................................5-39
Check and Service Engine Soon Light............3-30
Compartment Overview................................5-12
Coolant Heater............................................2-21
Coolant Temperature Gage...........................3-29
Coolant......................................................5-22
Cooling System Inspection............................6-23
Exhaust.....................................................2-30
Oil .............................................................5-14
Overheating................................................5-25
Starting......................................................2-19
Enhanced Traction System (ETS)........................ 4-8
Active Light................................................3-29
Warning Light.............................................3-28
Entry Lighting.................................................3-15
Express-Down Window....................................2-14
Extender, Safety Belt.......................................1-28
Exterior Lamps...............................................3-12F
Filter.............................................................5-18
Engine Air Cleaner......................................5-18
Finding a PTY Station
(RDS and XMŸ).........................3-43, 3-53, 3-67
Finding a Station....................3-37, 3-41, 3-51, 3-65
Finish Care....................................................5-75
Finish Damage...............................................5-77
Five-Speed....................................................2-25
Fixed Mast Antenna........................................3-78
Flash-to-Pass................................................... 3-6
Flat Tire, Changing.........................................5-61
Flat Tire........................................................5-60
Fluid.............................................................5-20
Automatic Transaxle.....................................5-20
Manual Transaxle........................................5-20
Power Steering...........................................5-33
Windshield Washer......................................5-34
FM Stereo.....................................................3-76
Fog Lamps....................................................3-14
Folding the Seatback........................................ 1-8
Following Distance..........................................4-38
Forward Gears...............................................2-24
Front Reading Lamps......................................3-15
Fuel............................................................... 5-4
Additives...................................................... 5-5
California Fuel.............................................. 5-5
Filling a Portable Fuel Container..................... 5-9
Filling Your Tank........................................... 5-7
5

To Use the Engine Coolant Heater....................2-21
Top Strap Anchor Location...............................1-40
Top Strap......................................................1-39
Torque Lock...................................................2-28
Total Weight on Your Vehicle's Tires..................4-36
Towing..........................................................4-30
Recreational Vehicle.....................................4-30
Towing a Trailer..................................4-34, 4-40
Your Vehicle...............................................4-30
Traction.........................................................3-29
Enhanced Traction System (ETS)
Active Light.............................................3-29
Enhanced Traction System (ETS)
Warning Light..........................................3-28
Enhanced Traction System (ETS).................... 4-8
Trailer Brakes.................................................4-37
Transaxle Operation, Automatic.........................2-22
Transaxle Operation, Manual............................2-25
Transaxle.......................................................5-20
Fluid, Automatic...........................................5-20
Fluid, Manual..............................................5-20
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-10Transmission..................................................3-26
Up-Shift Light..............................................3-26
Transportation Options...................................... 7-8
Trap-Resistant Trunk Kit...................................2-12
Trip Odometer................................................3-23
Trunk............................................................2-10
Turn and Lane-Change Signals.......................... 3-6
Turn Signal/Multifunction Lever........................... 3-5
Turn Signals When Towing a Trailer..................4-38
U
Underbody Flushing Service.............................6-22
Understanding Radio Reception........................3-76
Uniform Tire Quality Grading............................5-56
United States ± Customer Assistance.................. 7-4
Up-Shift Light.................................................3-26
Used Replacement Wheels..............................5-58
Using a MP3 Disc...........................................3-59
Using Cleaner on Fabric..................................5-72
Using the Rear Door Security Lock..................... 2-9
14