CHEVROLET IMPALA 2005 8.G Owners Manual

Notice:If the jumper cables are connected or
removed in the wrong order, electrical shorting may
occur and damage the vehicle. The repairs would
not be covered by your warranty. Always connect
and remove the jumper cables in the correct
order, making sure that the cables do not touch
each other or other metal.
A. Heavy, Unpainted Metal Engine Part
B. Good Battery or Remote Positive (+) Terminal
C. Dead Battery or Remote Positive (+) TerminalTo disconnect the jumper cables from both vehicles,
do the following:
1. Disconnect the black negative (−) cable from the
vehicle that had the dead battery.
2. Disconnect the black negative (−) cable from the
vehicle with the good battery.
3. Disconnect the red positive (+) cable from the
vehicle with the good battery.
4. Disconnect the red positive (+) cable from the
other vehicle.
5. Return the remote positive (+) terminal cover to its
original position.
Jumper Cable Removal
5-53

Headlamp Aiming
Headlamp aim has been preset at the factory and
should need no further adjustment.
If your vehicle is damaged in an accident, the headlamp
aim may be affected. Aim adjustment to the low-beam
headlamps may be necessary if it is difficult to see
the lane markers (for horizontal aim), or if oncoming
drivers ash their high-beam headlamps at you
(for vertical aim). If you believe your headlamps need
to be re-aimed, we recommend that you take your
vehicle to your dealer for service.
Bulb Replacement
For the proper type of replacement bulbs, see
Replacement Bulbs on page 5-58.
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.
5-54

Headlamps, Front Turn Signal, and
Parking Lamps
A. Parking/Turn Signal Lamp
B. Low-Beam Headlamp
C. High-Beam HeadlampTo replace one of these bulbs, do the following:
1. Open the hood. SeeHood Release on page 5-11
for more information.
2. Remove the air baffle.
3. Remove the two headlamp fasteners by pulling up
on them.
5-55

4. Pull the headlamp assembly gently away from the
vehicle and remove the electrical connector.
5. Remove the round dust caps to gain access to
the bulbs.6. Turn the old bulb counterclockwise and remove it
from the retaining ring by gently pulling it away
from the headlamp.
7. Remove the electrical connector from the bulb by
raising the lock tab and pulling the connector away
from the bulb’s base.
8. Install the electrical connector to the bulb.
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.
5-56

Taillamps, Turn Signal, Stoplamps
and Sidemarker Lamps
A. Rear Sidemarker Lamp
B. Taillamps/Turn Signal and StoplampTo replace one of these bulbs, do the following:
1. Open the trunk. SeeTrunk on page 2-10for
more information.
2. Remove the convenience net, if your vehicle has
one. Unhook the net from the upper wing nut.
3. Remove the two upper (convenience net)
wing nuts.
4. Pull the carpet away from the rear of the vehicle.
5. Remove the two remaining hex nuts.
6. Pull the assembly from the body carefully.
7. Remove the socket. To do so, press the tab,
turn it counterclockwise and pull it out.
8. Pull the old bulb out. Do not twist it.
9. Push the new bulb into the socket.
10. Reverse Steps 1 through 5 to reinstall the
taillamp assembly.
5-57

Back-Up Lamps
The back-up lamps are located in the applique, on the
rear of the trunk lid. To replace a bulb, do the following:
1. Open the trunk. SeeTrunk on page 2-10for
more information.
2. Remove the nine hex nuts.
3. Pull the rear trunk applique away from the vehicle.
4. Remove the socket. To do so, press the tab,
turn it 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 hex nuts.
Replacement Bulbs
Exterior Lamp Bulb Number
Back-Up 921
Fog Lamp TBD
Front Parking/Turn Signal3357NAK or
3457NAK
Headlamps
High-beam 9005
Low-beam 9006
Stoplamps, Taillamps, and
Turn Signal3057
For replacement bulbs not listed here, contact your
dealer.
5-58

Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected for wear
or cracking. SeeScheduled Maintenance on page 6-4
for more information.
Replacement blades come in different types and are
removed in different ways. For proper type and length,
seeNormal Maintenance Replacement Parts on
page 6-13. Here’s how to remove the wiper blades:
1. Turn on the wipers to the LO 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 click into place.
5-59

Tires
Your new vehicle comes with high-quality tires made by
a leading tire manufacturer. If you ever have questions
about your tire warranty and where to obtain service,
see your GM Warranty booklet for details. For additional
information refer to the tire manufacturer’s booklet
included with your vehicle’s Owner Manual.
{CAUTION:
Poorly maintained and improperly used tires
are dangerous.
Overloading your tires can cause
overheating as a result of too much
friction. You could have an air-out and a
serious accident. SeeLoading Your
Vehicle on page 4-30.
CAUTION: (Continued)
CAUTION: (Continued)

Underinated tires pose the same danger
as overloaded tires. The resulting accident
could cause serious injury. Check all tires
frequently to maintain the recommended
pressure. Tire pressure should be checked
when your tires are cold. SeeInflation - Tire
Pressure on page 5-66.
Overinated tires are more likely to be
cut, punctured or broken by a sudden
impact —such as when you hit a pothole.
Keep tires at the recommended pressure.
Worn, old tires can cause accidents. If your
tread is badly worn, or if your tires have
been damaged, replace them.
5-60

Tire Sidewall Labelling
Useful information about a tire is molded into its
sidewall. The examples below show a typical passenger
vehicle tire and a compact spare tire sidewall.
(A) Tire Size:The tire size is a combination of letters
and numbers used to dene a particular tire’s width,
height, aspect ratio, construction type and service
description. See the “Tire Size” illustration later in this
section for more detail.(B) TPC Spec (Tire Performance Criteria
Specication):Original equipment tires designed to
GM’s specic tire performance criteria have a TPC
specication code molded onto the sidewall. GM’s TPC
specications meet or exceed all federal safety
guidelines.
(C) DOT (Department of Transportation):The
Department of Transportation (DOT) code indicates that
the tire is in compliance with the U.S. Department of
Transportation Motor Vehicle Safety Standards.
(D) Tire Identication Number (TIN):The letters and
numbers following DOT (Department of Transportation)
code is the Tire Identication Number (TIN). The TIN
shows the manufacturer and plant code, tire size, and
date the tire was manufactured. The TIN is molded onto
both sides of the tire, although only one side may have
the date of manufacture.
(E) Tire Ply Material:The type of cord and number of
plies in the sidewall and under the tread.
(F) Uniform Tire Quality Grading (UTQG):Tire
manufacturers are required to grade tires based on
three performance factors: treadwear, traction and
temperature resistance. For more information see
Uniform Tire Quality Grading on page 5-73.
(G) Maximum Cold Ination Load Limit:Maximum
load that can be carried and the maximum pressure
needed to support that load. Passenger (P-Metric) Tire Example
5-61

(A) Temporary Use Only:The compact spare tire or
temporary use tire has a tread life of approximately
3,000 miles (5 000 km) and should not be driven
at speeds over 65 mph (105 km/h). The compact spare
tire is for emergency use when a regular road tire
has lost air and gone at. If your vehicle has a compact
spare tire, seeCompact Spare Tire on page 5-88
andIf a Tire Goes Flat on page 5-77.(B) Tire Ply Material:The type of cord and number of
plies in the sidewall and under the tread.
(C) Tire Identication Number (TIN):The letters
and numbers following the DOT (Department of
Transportation) code is the Tire Identication Number
(TIN). The TIN shows the manufacturer and plant code,
tire size, and date the tire was manufactured. The TIN
is molded onto both sides of the tire, although only
one side may have the date of manufacture.
(D) Maximum Cold Ination Load Limit:Maximum
load that can be carried and the maximum pressure
needed to support that load.
(E) Tire Ination:The temporary use tire or compact
spare tire should be inated to 60 psi (420 kPa).
For more information on tire pressure and ination see
Ination - Tire Pressure on page 5-66.
(F) Tire Size:A combination of letters and numbers
dene a tire’s width, height, aspect ratio, construction
type and service description. The letter T as the
rst character in the tire size means the tire is for
temporary use only.
(G) TPC Spec (Tire Performance Criteria
Specication):Original equipment tires designed
to GM’s specic tire performance criteria have a
TPC specication code molded onto the sidewall.
GM’s TPC specications meet or exceed all federal
safety guidelines. Compact Spare Tire Example
5-62