wiring CHEVROLET IMPALA 2009 9.G Owners Manual

Adding Equipment to Your
Airbag-Equipped Vehicle
Q:Is there anything I might add to or change
about the vehicle that could keep the airbags
from working properly?
A:Yes. If you add things that change the vehicle’s
frame, bumper system, height, front end or side
sheet metal, they may keep the airbag system from
working properly. Changing or moving any parts
of the front seats, safety belts, the airbag sensing
and diagnostic module, steering wheel, instrument
panel, roof-rail airbag modules, ceiling headliner
or pillar garnish trim, front sensors, side impact
sensors, or airbag wiring can affect the operation of
the airbag system.
In addition, the vehicle has a passenger sensing
system for the right front passenger position, which
includes sensors that are part of the passenger’s
seat. The passenger sensing system may not
operate properly if the original seat trim is replaced
with non-GM covers, upholstery or trim, or with
GM covers, upholstery or trim designed for a
different vehicle. Any object, such as an aftermarket
seat heater or a comfort enhancing pad or device,
installed under or on top of the seat fabric,could also interfere with the operation of the
passenger sensing system. This could either
prevent proper deployment of the passenger
airbag(s) or prevent the passenger sensing system
from properly turning off the passenger airbag(s).
SeePassenger Sensing System on page 1-65.
If you have any questions, call Customer
Assistance. The phone numbers and addresses for
Customer Assistance are in Step Two of the
Customer Satisfaction Procedure in this manual.
SeeCustomer Satisfaction Procedure on page 7-2.
Q:Because I have a disability, I have to get
my vehicle modied. How can I nd out whether
this will affect my airbag system?
A:If you have questions, call Customer Assistance.
The phone numbers and addresses for Customer
Assistance are in Step Two of the Customer
Satisfaction Procedure in this manual. See
Customer Satisfaction Procedure on page 7-2.
In addition, your dealer/retailer and the service manual
have information about the location of the airbag
sensors, sensing and diagnostic module and airbag
wiring.
1-72

Airbag Readiness Light
The system checks the airbag’s electrical system for
possible malfunctions. If the light stays on it indicates
there is an electrical problem. The system check includes
the airbag sensor, the pretensioners, the airbag modules,
the wiring and the crash sensing and diagnostic module.
For more information on the airbag system, seeAirbag
System on page 1-57.
The airbag readiness light
ashes for a few seconds
when the engine is started.
If the light does not come
on then, have it xed
immediately.{CAUTION:
If the airbag readiness light stays on after the
vehicle is started or comes on while driving, it
means the airbag system might not be working
properly. The airbags in the vehicle might not
inate in a crash, or they could even inate
without a crash. To help avoid injury, have
the vehicle serviced right away.
If there is a problem with the airbag system, an airbag
Driver Information Center (DIC) message can also come
on. SeeDIC Warnings and Messages on page 3-49
for more information.
3-28

Tire Pressure Monitor Operation.....................5-63
Tire Inspection and Rotation...........................5-67
When It Is Time for New Tires.......................5-68
Buying New Tires.........................................5-69
Different Size Tires and Wheels......................5-71
Uniform Tire Quality Grading..........................5-71
Wheel Alignment and Tire Balance..................5-73
Wheel Replacement......................................5-73
Tire Chains..................................................5-74
If a Tire Goes Flat........................................5-75
Changing a Flat Tire.....................................5-76
Removing the Spare Tire and Tools................5-77
Removing the Flat Tire and Installing the
Spare Tire................................................5-79
Storing a Flat or Spare Tire and Tools............5-85
Compact Spare Tire......................................5-88
Appearance Care............................................5-89
Interior Cleaning...........................................5-89
Fabric/Carpet...............................................5-90
Leather.......................................................5-91
Instrument Panel, Vinyl, and Other Plastic
Surfaces..................................................5-91
Care of Safety Belts......................................5-92
Weatherstrips...............................................5-92Washing Your Vehicle...................................5-92
Cleaning Exterior Lamps/Lenses.....................5-93
Finish Care..................................................5-93
Windshield and Wiper Blades.........................5-94
Aluminum Wheels.........................................5-94
Tires...........................................................5-95
Sheet Metal Damage.....................................5-95
Finish Damage.............................................5-95
Underbody Maintenance................................5-95
Chemical Paint Spotting.................................5-95
Vehicle Identication......................................5-96
Vehicle Identication Number (VIN).................5-96
Service Parts Identication Label.....................5-96
Electrical System............................................5-96
Add-On Electrical Equipment..........................5-96
Headlamp Wiring..........................................5-97
Windshield Wiper Fuses................................5-97
Power Windows and Other Power Options.......5-97
Fuses and Circuit Breakers............................5-97
Instrument Panel Fuse Block..........................5-97
Underhood Fuse Block..................................5-98
Capacities and Specications........................5-101
Section 5 Service and Appearance Care
5-2

5. Turn the two hex nuts counterclockwise to
remove them.
6. Pull out the taillamp assembly and disconnect the
wiring harness.
7. Turn the bulb socket counterclockwise to remove it.
8. Pull the old bulb straight out to remove it.
9. Push the new bulb straight in until it clicks to
install it.
10. Turn the bulb socket clockwise to reinstall it.11. Push the taillamp assembly back into place.
When reinstalling the taillamp assembly, make sure
that you line up the four posts on the assembly
with the slots in the vehicle.
12. Turn the two hex nuts clockwise to reinstall them.
13. Put the carpet back in place at the rear of the vehicle.
14. Turn the upper wing nut clockwise to reinstall.
15. Put the convenience net back into place by hooking
it to the upper wing nut.
5-50

Headlamp Wiring
The headlamp wiring is protected by fuses in the fuse
block. An electrical overload will cause the lamps to turn
off. If this happens, have the headlamp wiring checked
right away.
Windshield Wiper Fuses
The windshield wiper motor is protected by a fuse. If the
motor overheats due to heavy snow, etc., the wiper
will stop until the motor cools. If the overload is caused
by some electrical problem, have it xed.
Power Windows and Other Power
Options
Circuit breakers in the instrument panel fuse panel
protect the power windows and other power accessories.
When the current load is too heavy, the circuit breaker
opens and closes, protecting the circuit until the
problem is xed.
Fuses and Circuit Breakers
The wiring circuits in the vehicle are protected from
short circuits by a combination of fuses and circuit
breakers. This greatly reduces the chance of res
caused by electrical problems.Look at the silver-colored band inside the fuse. If the
band is broken or melted, replace the fuse. Be sure you
replace a bad fuse with a new one of the identical size
and rating.
Instrument Panel Fuse Block
The fuse block is located on the passenger side of the
vehicle in the carpet molding. Remove the fuse block
door to access the fuses.
5-97

E
E85 Fuel......................................................... 5-8
EDR .............................................................7-18
Electrical Equipment
Add-On Equipment......................................5-96
Electrical System
Fuses and Circuit Breakers...........................5-97
Headlamp Wiring.........................................5-97
Instrument Panel Fuse Block.........................5-97
Power Windows and Other Power Options......5-97
Underhood Fuse Block.................................5-98
Windshield Wiper Fuses...............................5-97
Electronic Immobilizer
PASS-Key
®III+...........................................2-17
Electronic Immobilizer Operation
PASS-Key
®III+...........................................2-18
Electronic Stability Control................................. 4-6
Engine
Air Cleaner/Filter.........................................5-21
Check and Service Engine Soon Lamp...........3-36
Compartment Overview................................5-14
Coolant......................................................5-28
Coolant Heater............................................2-22
Coolant Temperature Gage...........................3-34
Coolant Temperature Warning Light................3-34
Cooling System...........................................5-26
Drive Belt Routing.......................................6-14
Exhaust.....................................................2-30
Oil .............................................................5-17Engine (cont.)
Oil Life System...........................................5-20
Overheated Protection Operating Mode...........5-34
Overheating................................................5-31
Starting......................................................2-21
Entry Lighting.................................................3-15
Event Data Recorders.....................................7-18
Extender, Safety Belt.......................................1-33
Exterior Lamps...............................................3-12
F
Filter
Engine Air Cleaner......................................5-21
Finish Damage...............................................5-95
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-75
Flat Tire, Changing.........................................5-76
Flat Tire, Storing.............................................5-85
Fluid
Automatic Transmission................................5-24
Power Steering...........................................5-34
Windshield Washer......................................5-35
Fog Lamp
Fog ...........................................................3-14
Fog Lamp Light..............................................3-40
Folding Rear Seat...........................................1-10
5

Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
E85 (85% Ethanol)........................................ 5-8
Economy Driving........................................... 4-2
Filling a Portable Fuel Container....................5-12
Filling the Tank...........................................5-10
Fuels in Foreign Countries.............................. 5-9
Gage .........................................................3-41
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-6
Fuel Management, Active.................................2-23
Fuses
Fuses and Circuit Breakers...........................5-97
Instrument Panel Fuse Block.........................5-97
Underhood Fuse Block.................................5-98
Windshield Wiper.........................................5-97
G
Gage
Speedometer..............................................3-26
Tachometer.................................................3-26
Gages
Engine Coolant Temperature.........................3-34
Fuel..........................................................3-41
Garage Door Opener.......................................2-36Gasoline
Octane........................................................ 5-5
Specications............................................... 5-6
Glove Box.....................................................2-43
GM Mobility Reimbursement Program.................. 7-7
H
Halogen Bulbs................................................5-45
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-2
Headlamp
Aiming .......................................................5-45
Headlamp Wiring............................................5-97
Headlamps
Bulb Replacement.......................................5-45
Daytime Running Lamps/Automatic Headlamp
System...................................................3-14
Exterior Lamps............................................3-12
Flash-to-Pass............................................... 3-8
Headlamps, Front Turn Signal, Sidemarker,
and Parking Lamps..................................5-46
High/Low Beam Changer................................ 3-8
Heated Seats................................................... 1-6
Heater...........................................................3-20
Engine Coolant...........................................2-22
Highbeam On Light.........................................3-40
6