2003 CHEVROLET MONTE CARLO ignition

Notice:If you leave your radio on, it could be badly
damaged. The repairs wouldn't be covered by
your warranty.
3. Turn off the ignition on both vehicles. Unplug
unnecessary accessories plugged into the cigarette
lighter or in the accessory power outlets. Turn off
the radio and all lamps that aren't needed. This will
avoid sparks and help save both batteries. And it
could save your radio!
4. Open the hoods and locate the batteries. Find the
positive (+) and negative (-) terminal locations on
each vehicle.
You will not need to access your battery for jump
starting. Your vehicle has a remote positive (+) jump
starting terminal for that purpose. The remote
positive (+) terminal is located in the engine
compartment on the passenger's side of the vehicle,
next to the upper underhood fuse block. See
Engine Compartment Overview on page 5-12for
more information on location.To uncover the remote positive (+) terminal, lift the
plastic cap. You should always use the remote
positive (+) terminal instead of the positive (+)
terminal on the battery.
5-49

Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected at least
twice a year for wear or cracking. See ªWindshield
Wipers, Blade Checkº under
At Least Twice a Year on
page 6-11for more information.
Replacement blades come in different types and are
removed in different ways. For proper type and length,
see
Normal Maintenance Replacement Parts on
page 5-100. Here's how to remove the wiper blades:
1. Turn on the wipers to the low wipe setting.
2. Turn off the ignition while the wipers are at the
outer positions of the wiper pattern. The blades
are more accessible for removal/replacement while
in this position.
3. Pull the windshield wiper arm away from the
windshield.4. While holding the wiper arm away from the glass,
push the release clip from under the blade
connecting point and pull the old blade assembly
down toward the glass to remove it from the
wiper arm.
5. Push the new wiper blade securely on the wiper
arm until you hear the release clip ªclickº into
place.
5-58

Tire Pressure Monitor System
If your vehicle has the tire pressure monitor system,
it can alert you to a large change in the pressure of
one tire. The system²learnsº the pressure for each tire
throughout the operating speed range of your vehicle.
The system normally takes between 45 and 90 minutes
of driving to learn the tire pressures. This time may
be longer depending on your individual driving habits.
Learning need not be accumulated during a single
trip. Once learned, the system will remember the tire
pressures until the system is recalibrated.
After the system has learned tire pressures with
properly in¯ated tires, the LOW TIRE PRESSURE
message will come on if the pressure in one tire
becomes 12 psi (83 kPa) lower than the other
three tires. The tire pressure monitor system won't alert
you if the pressure in more than one tire is low, if the
system is not properly calibrated, or if the vehicle
is moving faster than 70 mph (110 km/h).
The tire pressure monitor system detects differences
in tire rotation speeds that are caused by changes in tire
pressure. The system can alert you about a low
tire Ð but it doesn't replace normal tire maintenance.
See
Tires on page 5-59.When the LOW TIRE PRESSURE message comes on,
you should stop as soon as you can and check all
your tires for damage. (If a tire is ¯at, see
If a Tire Goes
Flat on page 5-69.) Also check the tire pressure in all
four tires as soon as you can. SeeIn¯ation -- Tire
Pressure on page 5-60.
The LOW TIRE PRESSURE message will also be
displayed (while the ignition is on) until you reset
(calibrate) the system.
Don't reset the tire pressure monitor system without ®rst
correcting the cause of the problem and checking
and adjusting the pressure in all four tires. If you reset
the system when the tire pressures are incorrect,
the system will not work properly and may not alert you
when a tire is low.
Any time you adjust a tire's pressure, rotate your tires,
or have one or more tires repaired or replaced, you'll
need to reset (calibrate) the tire pressure monitor
system. You'll also need to reset the system whenever
you buy new tires and whenever the vehicle's battery
has been disconnected.
5-61

To reset (calibrate) the system: The tire pressure
monitor system can be reset by turning the exterior lamp
control from OFF to parking lamps three times while
the ignition is in ON. It can also be reset through
the radio using the following steps:
1. Turn the ignition to ACC or ON and turn the
radio off.
2. Press and hold the TUNE DISP button on the radio
for at least ®ve seconds until SETTINGS is
displayed.
3. Press the SEEK PSCAN up or down arrow to scroll
through the main menu.
4. Scroll until TIRE MON appears on the display.
5. Press the 1 PREV or 2 NEXT button to enter the
submenu. RESET will be displayed.
6. Press the TUNE DISP button to reset. A chime will
be heard to verify the new setting and DONE will
be displayed for one second.7. Once the monitor has been reset, scroll until EXIT
appears on the display.
8. Press the TUNE DISP button to exit programming.
A chime will be heard to verify exit.
The system completes the calibration process during
driving.
The system normally takes 15 to 20 minutes of driving
in each of three speed ranges to²learnº tire pressures.
The speed ranges are 15 to 40 mph (25 to 65 km/h),
40 to 65 mph (65 to 105 km/h) and above 65 mph
(105 km/h). When learning is complete, the system will
alert you after two to eight minutes if a tire is 12 psi
(83 kPa) different from the other three tires. Detection
thresholds may be higher and detection times may
be longer on rough roads, curves and at high speeds.
The system is not capable of detection at speeds greater
than 70 mph (110 km/h).
5-62

Instrument Panel Fuse Block
(Driver's Side)
Some fuses are in a fuse
block at the end of the
instrument panel on
the driver's side of the
vehicle. Pull off the cover
labeled FUSES to
expose the fuses.
Fuses Usage
PCM/BCM/
CLSTRPowertrain Control Module, Body
Control Module, Cluster (Ignition 0)
WSWWindshield Wipers, Windshield
Washer
PCM (CRANK) Powertrain Control Module (Crank)
CIG/AUX Accommodated Device (Accessory)
BCM Body Control Module (Accessory)
5-92

Underhood Fuse Block (Lower)
Some fuses are in a fuse block in the engine
compartment on the passenger's side of the vehicle.
See
Engine Compartment Overview on page 5-12for more information on location.
Relays Usage
FAN CONT #3Secondary Cooling Fan
(Passenger's Side)
FAN CONT #2 Cooling Fan Control Relay
FANT CONT #1 Primary Cooling Fan (Driver's Side)
Relays Usage
IGN RELAY Ignition Relay
A/C CMPR HVAC Compressor
Fuses Usage
IGN SW Ignition Switch
RT I/P #3 Rear Defogger, Audio System
U/HOOD #2 Ignition Relay, AIR Pump
COOLING
FANSCooling fans (Battery)
FAN CONT #2
Relays #2 & #3
FAN CON #1 Cooling Fan Control Relays #1
AIR PMP RLYAir Induction Reaction Pump Relay
(Battery)
FUEL INJ Fuel Injectors
TRANS SOL Transmission Solenoids
A/C RLY
(COIL)HVAC Control Relay
ENG DEVICESCanister Purge Solenoid, Mass Air
Flow Sensor (MAF), AIR Pump
Relay & Valve Control
DFI MDL Direct Fire Ignition Module
OXY SENOxygen Sensors
(Pre and Post Converter)
5-97

Ignition Transaxle Lock Check
While parked, and with the parking brake set, try to turn
the ignition key to OFF in each shift lever position.
·The key should turn to OFF only when the shift lever
is in PARK (P).
·The key should come out only in OFF.
Parking Brake and Automatic Transaxle
Park (P) Mechanism Check
{CAUTION:
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged. Make
sure there is room in front of your vehicle in
case it begins to roll. Be ready to apply the
regular brake at once should the vehicle begin
to move.Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake,
set the parking brake.
·To check the parking brake's holding ability: With
the engine running and transaxle in NEUTRAL (N),
slowly remove foot pressure from the regular
brake pedal. Do this until the vehicle is held by the
parking brake only.
·To check the PARK (P) mechanism's holding
ability: With the engine running, shift to PARK (P).
Then release the parking brake followed by the
regular brake.
Underbody Flushing Service
At least every spring, use plain water to ¯ush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.
6-13

H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-6
Headlamp High/Low-Beam Changer.................... 3-9
Headlamp Wiring............................................5-91
Headlamp......................................................5-53
Aiming.......................................................5-53
Headlamps....................................................5-54
Bulb Replacement.......................................5-54
Halogen Bulbs............................................5-54
Headlamps, Front Turn Signal, Sidemarker,
and Parking Lamps..................................5-54
Heated Outside Mirrors....................................2-33
Heated Seats................................................... 1-4
Heating.........................................................3-24
Highbeam Out Warning Message......................3-52
Highway Hypnosis...........................................4-22
Hill and Mountain Roads..................................4-22
Hitches..........................................................4-37
HomeLink Transmitter, Programming..................2-36
HomeLink
žTransmitter....................................2-35
Hood............................................................5-10
Checking Things Under................................5-10
Release.....................................................5-10
Horn............................................................... 3-7
Hot Coolant Temperature Warning Message........3-46How to Add Coolant to the Coolant
Recovery Tank............................................5-34
How to Add Coolant to the Radiator..................5-37
How to Add Fluid............................................5-26
How to Check Power Steering Fluid..................5-42
How to Check........................................5-24, 5-60
How to Inspect the Engine Air Cleaner/Filter.......5-22
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-16
Hydroplaning..................................................4-17
I
If No Steam Is Coming From Your Engine..........5-31
If Steam Is Coming From Your Engine...............5-30
If the Light Is Flashing.....................................3-40
If the Light Is on Steady..................................3-40
If You Are Stuck in Sand, Mud, Ice or Snow.......4-28
If You Do Decide To Pull A Trailer.....................4-35
If You're Caught in a Blizzard...........................4-26
Ignition Positions.............................................2-17
Ignition Transaxle Lock Check..........................6-13
Illumination on Remote Activation........................ 2-6
Infants and Young Children, Restraints...............1-32
In¯ation -- Tire Pressure..................................5-60
7