2003 CHEVROLET IMPALA turn signal bulb

Turn and Lane-Change Indicator
The turn signal has two upward (for right) and two
downward (for left) positions. These positions allow you
to signal a turn or a lane change.
To signal a turn, move the lever all the way up or down.
When the turn is ®nished, the lever will return
automatically.
An arrow on the instrument
panel cluster will ¯ash in
the direction of the
turn or lane change.
To signal a lane change, just raise or lower the lever
until the arrow starts to ¯ash. Hold it there until you
complete your lane change. The lever will return by itself
when you release it.
If the arrow ¯ashes faster than normal as you signal a
turn or a lane change, a signal bulb may be burned
out and other drivers won't see your turn signal.
If a bulb is burned out, replace it to help avoid an
accident. If the arrows don't go on at all when you signal
a turn, check for burned-out bulbs and then check the
fuse. See
Fuses and Circuit Breakers on page 5-95.
Turn Signal On Chime
If you leave either one of your turn signals on and drive
more than 3/4 mile (1.2 km), a chime will sound to
alert you.
Headlamp High/Low-Beam Changer
To change your headlamps from low beams to
high beams, or high to low, pull the multifunction lever
all the way toward you. Then release it.
While the high beams are
on, this light on the
instrument panel cluster
also will be on.
This light works only while the ignition key is in the ON
position, and your fog lamps (if equipped) will not be
illuminated when your high beams are on.
3-8

Turn Signals When Towing a Trailer
When you tow a trailer, your vehicle may need additional
wiring. Check with your dealer. The arrows on your
instrument panel will ¯ash whenever you signal a turn or
lane change. Properly hooked up, the trailer lamps
will also ¯ash, telling other drivers you're about to turn,
change lanes or stop.
When towing a trailer, the arrows on your instrument
panel will ¯ash for turns even if the bulbs on the trailer
are burned out. Thus, you may think drivers behind
you are seeing your signal when they are not. It's
important to check occasionally to be sure the trailer
bulbs are still working.
Driving On Grades
Reduce speed and shift to a lower gearbeforeyou start
down a long or steep downgrade. If you don't shift
down, you might have to use your brakes so much that
they would get hot and no longer work well.
On a long uphill grade, shift down and reduce your
speed to around 45 mph (70 km/h) to reduce the
possibility of engine and transaxle overheating.
If you have overdrive, you may want to drive in
THIRD (3) instead of AUTOMATIC OVERDRIVE
X.
Parking on Hills
{CAUTION:
You really should not park your vehicle, with a
trailer attached, on a hill. If something goes
wrong, your rig could start to move. People
can be injured, and both your vehicle and the
trailer can be damaged.
But if you ever have to park your rig on a hill, here's
how to do it:
1. Apply your regular brakes, but don't shift into
PARK (P) yet.
2. Have someone place chocks under the trailer
wheels.
3. When the wheel chocks are in place, release the
regular brakes until the chocks absorb the load.
4. Reapply the regular brakes. Then apply your
parking brake, and then shift to PARK (P).
5. Release the regular brakes.
4-39

Service............................................................5-3
Doing Your Own Service Work.........................5-4
Adding Equipment to the Outside of Your
Vehicle......................................................5-4
Fuel................................................................5-5
Gasoline Octane............................................5-5
Gasoline Speci®cations....................................5-5
California Fuel...............................................5-6
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-6
Filling Your Tank............................................5-7
Filling a Portable Fuel Container.......................5-9
Checking Things Under the Hood....................5-10
Hood Release..............................................5-10
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-16
Engine Air Cleaner/Filter................................5-22
Automatic Transaxle Fluid..............................5-24
Engine Coolant.............................................5-27
Radiator Pressure Cap..................................5-30
Engine Overheating.......................................5-30
Cooling System............................................5-33
Power Steering Fluid.....................................5-43
Windshield Washer Fluid................................5-44
Brakes........................................................5-45Battery........................................................5-48
Jump Starting...............................................5-49
Headlamp Aiming...........................................5-55
Bulb Replacement..........................................5-56
Halogen Bulbs..............................................5-56
Headlamps, Front Turn Signal, and Parking
Lamps.....................................................5-56
Taillamps, Turn Signal, Stoplamps and
Sidemarker Lamps.....................................5-58
Back-Up Lamps............................................5-59
Replacement Bulbs.......................................5-59
Windshield Wiper Blade Replacement..............5-60
Tires..............................................................5-61
In¯ation -- Tire Pressure................................5-62
Tire Pressure Monitor System.........................5-63
Tire Inspection and Rotation...........................5-65
When It Is Time for New Tires.......................5-66
Buying New Tires.........................................5-67
Uniform Tire Quality Grading..........................5-68
Wheel Alignment and Tire Balance..................5-69
Wheel Replacement......................................5-69
Tire Chains..................................................5-71
If a Tire Goes Flat........................................5-71
Changing a Flat Tire.....................................5-72
Compact Spare Tire......................................5-84
Section 5 Service and Appearance Care
5-1

Bulb Replacement
For the proper type of replacement bulb, seeReplacement Bulbs on page 5-59.
For any bulb changing procedure not listed in this
section, contact your dealer.
Halogen Bulbs
{CAUTION:
Halogen bulbs have pressurized gas inside
and can burst if you drop or scratch the bulb.
You or others could be injured. Be sure to read
and follow the instructions on the bulb
package.
Headlamps, Front Turn Signal, and
Parking Lamps
A. Parking/Turn Signal Lamp
B. Low-Beam Headlamp
C. High-Beam Headlamp
5-56

9. Install the new bulb by inserting the smallest tab on
the bulb base into the matching notch in the
retaining ring. Turn the bulb a quarter-turn clockwise
until it stops.
10. Reverse Steps 1 through 5 to reinstall the headlamp
assembly. Then, check the lamps.
Taillamps, Turn Signal, Stoplamps
and Sidemarker Lamps
A. Rear Sidemarker Lamp
B. Taillamps/Turn Signal and Stoplamp1. Open the trunk. Remove the convenience net, if
your vehicle has one. Unhook the net from the
upper wing nut.
2. Remove the two upper (convenience net) wing
nuts.
3. Pull the carpet away from the rear of the vehicle.
4. Unscrew the
two remaining
wing nuts.
5. Pull the assembly from the body carefully.
6. To remove a socket, press the tab, turn the socket
counterclockwise and pull it out.
7. Pull the old bulb out. Do not twist it.
8. Push the new bulb into the socket.
9. Reinstall the socket in the assembly. Tighten the
socket by turning it clockwise.
5-58

10. Reinstall the assembly and the two lower wing nuts.
11. Reinstall the carpeting.
12. Reinstall the upper (convenience net) wing nut and
convenience net, if equipped.
Back-Up Lamps
The back-up lamps are located in the applique on the
rear of the trunk lid.
1. Open the trunk.
2. Remove the nine wing nuts.
3. Pull the rear trunk applique away from the vehicle.
4. To remove a socket press the tab, turn the
socket counterclockwise and pull it out.
5. Pull the old bulb out. Do not twist it.
6. Push the new bulb into the socket.
7. Reinstall the socket in the assembly. Tighten the
socket by turning it clockwise.
8. Reinstall the applique and the nine wing nuts.
Replacement Bulbs
Exterior Lamp Bulb Number
Back-Up 921
Front Parking/Turn Signal3357NAK or
3457NAK
Headlamps, High-Beam 9005
Headlamps, Low-Beam 9006
Taillamps/Stop lamps/Turn Signal 3057
For any bulb not listed here, contact your dealer.
5-59

Audio System(s) (cont.)
Understanding Radio Reception.....................3-91
Vehicle Customization Settings......................3-94
XMŸ Satellite Radio Antenna System............3-94
AUTOLOCK (Automatic Door Lock
and Unlock)................................................2-47
Automatic Transaxle Check..............................6-11
Automatic Transaxle Shift Lock Control
System Check.............................................6-12
Automatic Transaxle........................................5-24
Fluid..........................................................5-24
Operation...................................................2-23
Auxiliary Power Connection (Power Drop)...........3-20
B
Backglass Antenna..........................................3-93
Backing Up....................................................4-38
Battery Replacement......................................... 2-7
Battery Rundown Protection.............................3-18
Battery Warning Message................................3-42
Battery..........................................................5-48
Before Leaving on a Long Trip.........................4-22
Body Lubrication Service..................................6-11
Brake Fluid....................................................5-45
Brake Wear...................................................5-47
Brake............................................................3-47
Low Fluid Warning Message.........................3-47
Parking......................................................2-27Brake (cont.)
System Inspection.......................................6-15
System Warning Light..................................3-34
Brakes..........................................................5-45
Braking in Emergencies..................................... 4-8
Braking........................................................... 4-6
Break-In, New Vehicle.....................................2-18
Bulb Replacement...........................................5-56
Back-Up Lamps...........................................5-59
Halogen Bulbs............................................5-56
Headlamp Aiming........................................5-55
Headlamps, Front Turn Signal, and
Parking Lamps.........................................5-56
Replacement Bulbs......................................5-59
Taillamps, Turn Signal, Stoplamps and
Sidemarker Lamps...................................5-58
Buying New Tires...........................................5-67
C
California Fuel.................................................. 5-6
Canada ± Customer Assistance.......................... 7-4
Canadian Owners................................................ ii
Canadian Roadside Assistance........................... 7-7
Capacities and Speci®cations..........................5-103
Carbon Monoxide...................4-25, 4-34, 2-10, 2-31
Care of.........................................................5-88
Safety Belts................................................5-88
Your Cassette Tape Player............................3-91
2

H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-6
Headlamp High/Low-Beam Changer.................... 3-8
Headlamp Wiring............................................5-94
Headlamp......................................................5-55
Aiming.......................................................5-55
Headlamps....................................................5-56
Bulb Replacement.......................................5-56
Halogen Bulbs............................................5-56
Headlamps, Front Turn Signal,
and Parking Lamps..................................5-56
Heated Outside Mirrors....................................2-36
Heated Seats................................................... 1-4
Highbeam Out Warning Message......................3-48
Highway Hypnosis...........................................4-23
Hill and Mountain Roads..................................4-23
Hitches..........................................................4-37
HomeLink Transmitter, Programming..................2-39
HomeLink
žTransmitter....................................2-39
Hood............................................................5-10
Checking Things Under................................5-10
Release.....................................................5-10
Horn............................................................... 3-7
Hot Coolant Temperature Warning Message........3-42
How to Add Coolant to the Coolant
Recovery Tank............................................5-35
How to Add Coolant to the Radiator..................5-38
How to Add Fluid............................................5-26How to Check Power Steering Fluid..................5-43
How to Check........................................5-24, 5-62
How to Inspect the Engine Air
Cleaner/Filter..............................................5-22
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-14
Hydroplaning..................................................4-19
I
If No Steam Is Coming From Your Engine..........5-32
If Steam Is Coming From Your Engine...............5-31
If the Light Is Flashing.....................................3-38
If the Light Is on Steady..................................3-38
If You Are Stuck in Sand, Mud, Ice or Snow.......4-30
If You Do Decide To Pull A Trailer.....................4-35
If You're Caught in a Blizzard...........................4-28
Ignition Positions.............................................2-18
Ignition Transaxle Lock Check..........................6-13
Illumination on Remote Activation........................ 2-6
Infants and Young Children, Restraints...............1-33
In¯ation -- Tire Pressure..................................5-62
Inspection......................................................6-15
Brake System.............................................6-15
Engine Cooling System................................6-15
Exhaust System..........................................6-14
Fuel System...............................................6-15
Part C - Periodic Maintenance.......................6-14
Steering, Suspension and Front
Drive Axle Boot and Seal..........................6-14
7