2007 CHEVROLET IMPALA ECU

{CAUTION:
Anyone who is up against, or very
close to, any airbag when it inates can
be seriously injured or killed. Airbags
plus lap-shoulder belts offer the best
protection for adults, but not for young
children and infants. Neither the vehicle’s
safety belt system nor its airbag system
is designed for them. Young children
and infants need the protection that a
child restraint system can provide.
Always secure children properly in
your vehicle. To read how, seeOlder
Children on page 41orInfants and
Young Children on page 43.There is an airbag
readiness light on
the instrument panel
cluster, which shows
the airbag symbol.
The system checks the airbag electrical system
for malfunctions. The light tells you if there is
an electrical problem. SeeAirbag Readiness
Light on page 178for more information.
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{CAUTION:
If something is between an occupant
and an airbag, the bag might not inate
properly or it might force the object
into that person causing severe injury
or even death. The path of an inating
airbag must be kept clear. Do not put
anything between an occupant and an
airbag, and do not attach or put anything
on the steering wheel hub or on or near
any other airbag covering. And, if your
vehicle has roof-mounted side impact
airbags, never secure anything to the
roof of your vehicle by routing the rope
or tie down through any door or window
opening. If you do, the path of an inating
side impact airbag will be blocked.
The path of an inating airbag must
be kept clear.
When Should an Airbag Inate?
The driver’s and right front passenger’s frontal
airbags are designed to inate in moderate to
severe frontal or near-frontal crashes. But they are
designed to inate only if the impact exceeds a
predetermined deployment threshold. Deployment
thresholds take into account a variety of desired
deployment and non-deployment events and are
used to predict how severe a crash is likely to be in
time for the airbags to inate and help restrain the
occupants. Whether your frontal airbags will or
should deploy is not based on how fast your vehicle
is traveling. It depends largely on what you hit,
the direction of the impact, and how quickly your
vehicle slows down.
In addition, your vehicle has “dual-stage” frontal
airbags, which adjust the restraint according
to crash severity. Your vehicle has electronic
frontal sensors which help the sensing system
distinguish between a moderate frontal impact
and a more severe frontal impact. For moderate
frontal impacts, these airbags inate at a level
less than full deployment. For more severe
frontal impacts, full deployment occurs.
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The passenger sensing system will turn off the
right front passenger’s frontal airbag under certain
conditions. The driver’s airbags are not part of
the passenger sensing system.
The passenger sensing system works with
sensors that are part of the right front passenger’s
seat and safety belt. The sensors are designed
to detect the presence of a properly seated
occupant and determine if the passenger’s frontal
airbag should be enabled (may inate) or not.
Accident statistics show that children are safer
if they are restrained in the rear rather than
the front seat. We recommend that child restraints
be secured in a rear seat, including an infant
riding in a rear-facing infant seat, a child riding
in a forward-facing child seat and an older
child riding in a booster seat.There is a label on your sun visor that says,
“Never put a rear-facing child seat in the front.”
This is because the risk to the rear-facing child is
so great if the airbag deploys. Never put a rear
facing child restraint in the right front passenger
seat unless the airbag is off. Here is why:
{CAUTION:
A child in a rear-facing child restraint
can be seriously injured or killed if the
right front passenger’s airbag inates.
This is because the back of the
rear-facing child restraint would be
very close to the inating airbag.
CAUTION: (Continued)
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CAUTION: (Continued)
Even though the passenger sensing
system is designed to turn off the
passenger’s frontal airbag if the system
detects a rear-facing child restraint, no
system is fail-safe, and no one can
guarantee that an airbag will not deploy
under some unusual circumstance, even
though it is turned off. We recommend
that rear-facing child restraints be secured
in the rear seat, even if the airbag is off.
If you need to secure a forward-facing
child restraint in the right front seat,
always move the front passenger seat
as far back as it will go. It is better to
secure the child restraint in a rear seat.The passenger sensing system is designed to turn
off the right front passenger’s frontal airbag if:
The right front passenger seat is unoccupied.
The system determines that an infant is
present in a rear-facing infant seat.
The system determines that a small child is
present in a forward-facing child restraint.
The system determines that a small child is
present in a booster seat.
A right front passenger takes his/her weight off
of the seat for a period of time.
The right front passenger seat is occupied by
a smaller person, such as a child who has
outgrown child restraints.
Or, if there is a critical problem with the airbag
system or the passenger sensing system
When the passenger’s frontal airbag has been
turned off by the passenger sensing system, the
off indicator on the instrument panel will light
and stay lit to remind you that the airbag is off.
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If a child restraint has been installed and the
on indicator is lit, turn the vehicle off. Remove
the child restraint from the vehicle and reinstall
the child restraint following the child restraint
manufacturer’s directions and refer toSecuring
a Child Restraint in the Right Front Seat Position
on page 64.
If, after reinstalling the child restraint and restarting
the vehicle, the on indicator is still lit, check to
make sure that the vehicle’s seatback is not
pressing the child restraint into the seat cushion.
If this happens, slightly recline the vehicle’s
seatback and adjust the seat cushion if possible.
Also make sure the child restraint is not trapped
under the vehicle head restraint. If this happens,
adjust the head restraint.
If the on indicator is still lit, secure the child in
the child restraint in a rear seat position in
the vehicle if one is available and check with
your dealer.The passenger sensing system is designed to
enable (may inate) the right front passenger’s
frontal airbag anytime the system senses
that a person of adult size is sitting properly in the
right front passenger’s seat. When the passenger
sensing system has allowed the airbag to be
enabled, the on indicator will light and stay lit to
remind you that the airbag is active.
For some children who have outgrown child
restraints and for very small adults, the passenger
sensing system may or may not turn off the
right front passenger’s frontal airbag, depending
upon the person’s seating posture and body
build. Everyone in your vehicle who has
outgrown child restraints should wear a safety
belt properly — whether or not there is an airbag
for that person.
If a person of adult-size is sitting in the right
front passenger’s seat, but the off indicator is lit,
it could be because that person is not sitting
properly in the seat. If this happens, turn
the vehicle off and ask the person to place the
seatback in the fully upright position, then sit
upright in the seat, centered on the seat cushion,
with the person’s legs comfortably extended.
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Adding Equipment to Your
Airbag-Equipped Vehicle
Q:Is there anything I might add to the front
or sides of the vehicle that could keep the
airbags from working properly?
A:Yes. If you add things that change your
vehicle’s frame, bumper system, height,
front end or side sheet metal, they may keep
the airbag system from working properly.
Also, the airbag system may not work properly
if you relocate any of the airbag sensors.
If you have any questions about this,
you should contact Customer Assistance
before you modify your vehicle. 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 426.
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:Changing or moving any parts of the
front seats, safety belts, the airbag sensing
and diagnostic module, steering wheel,
instrument panel, ceiling headliner, ceiling
and pillar garnish trim, roof-mounted airbag
modules, or airbag wiring can affect the
operation of the airbag system. 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. SeeCustomer Satisfaction Procedure
on page 426.
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Keys.............................................................. 89
Remote Keyless Entry (RKE) System.......... 90
Remote Keyless Entry (RKE)
System Operation.................................... 91
Doors and Locks.......................................... 98
Door Locks................................................. 98
Power Door Locks....................................... 99
Automatic Door Lock................................. 100
Programmable Automatic Door Unlock....... 100
Rear Door Security Locks......................... 100
Lockout Protection..................................... 101
Trunk........................................................ 102
Windows...................................................... 104
Power Windows........................................ 105
Sun Visors................................................ 107
Theft-Deterrent Systems............................. 107
Content Theft-Deterrent............................. 107
PASS-Key
®III+......................................... 108
PASS-Key®III+ Operation......................... 109Starting and Operating Your Vehicle......... 111
New Vehicle Break-In................................ 111
Ignition Positions....................................... 112
Retained Accessory Power (RAP)............. 113
Starting the Engine.................................... 113
Engine Coolant Heater.............................. 115
Active Fuel Management™
(3.9L V6 and 5.3L V8 Engines).............. 116
Automatic Transaxle Operation.................. 116
Parking Brake........................................... 120
Shifting Into Park (P)................................. 121
Shifting Out of Park (P)............................. 123
Parking Over Things That Burn................. 123
Engine Exhaust......................................... 124
Running the Engine While Parked............. 125
Mirrors......................................................... 126
Manual Rearview Mirror............................. 126
Manual Rearview Mirror with OnStar
®....... 126
Automatic Dimming Rearview Mirror
with OnStar
®.......................................... 126
Outside Power Mirrors............................... 127
Outside Convex Mirror............................... 127
Section 2 Features and Controls
87

Automatic Door Lock
The doors will automatically lock when the shift
lever is moved out of PARK (P). The automatic
door locking feature cannot be disabled.
Programmable Automatic Door
Unlock
Your vehicle is programmed so that when the shift
lever is moved into PARK (P) all doors will unlock.
With the vehicle stopped and the engine running,
door unlocking can be programmed through
prompts displayed on the Driver Information
Center (DIC). These prompts allow the driver to
choose various unlock settings. For programming
information, seeDIC Vehicle Customization on
page 208.
Rear Door Security Locks
Your vehicle has rear door security locks, that
prevent passengers from opening the rear doors
from the inside.
The rear door security locks are located on the
inside edge of each rear door. You must open the
rear doors to access them.
To assist you in nding the lock, your vehicle will
have one of the following:
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