2007 CHEVROLET EXPRESS CARGO VAN ECU

The words ON and OFF, or the symbol for on and
off, will be visible on the instrument panel during
the system check. When the system check is
complete, either the word ON or the word OFF,
or the symbol for on or the symbol for off, will
be visible. SeePassenger Airbag Status Indicator
on page 172.
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. 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 inflate) or not.Accident statistics show that children are safer if
they are restrained in the rear rather than the front
seat. We recommend that children be secured
in a rear seat, including: an infant or a child riding
in a rear-facing child restraint; a child riding in
a forward-facing child seat; an older child riding
in a booster seat; and children, who are large
enough, using safety belts.
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.
90

{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.
Even though the passenger sensing
system is designed to turn off the right
front 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.
CAUTION: (Continued)
CAUTION: (Continued)
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.
If your vehicle does not have a rear seat that
will accommodate a rear-facing child restraint,
we recommend that rear-facing child restraints
not be transported in your vehicle, even if
the airbag is off.
91

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 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 right front passenger’s frontal airbag
has been turned off by the passenger sensing
system, the off indicator will light and stay
lit to remind you that the airbag is off. See
Passenger Airbag Status Indicator on page 172.
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
(With Passenger Sensing System)in the Index.
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.
92

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.
Remove any additional material from the seat
cushion before reinstalling or securing the
child restraint.
If the on indicator is still lit, secure the child in
the child restraint in a rear seat position in
the vehicle, and check with your dealer/retailer.
If no rear seat is available, do not install a
child restraint in this vehicle,
The passenger sensing system is designed to
enable (may inflate) the right front passenger’s
frontal airbag anytime the system sensesthat 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.
93

Adding Equipment to Your
Airbag-Equipped Vehicle
Q:Is there anything I might add to the
exterior 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 424.
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,
the instrument panel, 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 424.
Your dealer/retailer and the service manual
have information about the location of the airbag
sensors, sensing and diagnostic module and
airbag wiring.
97

Keys............................................................ 102
Remote Keyless Entry (RKE) System........ 104
Remote Keyless Entry (RKE) System
Operation............................................... 105
Doors and Locks........................................ 108
Door Locks................................................ 108
Power Door Locks..................................... 109
Cargo Door Relocking............................... 109
Rear Door Security Locks......................... 110
Lockout Protection..................................... 110
Sliding Side Door...................................... 111
60/40 Swing-Out Side Door....................... 112
Rear Doors............................................... 114
Windows...................................................... 115
Manual Windows....................................... 115
Power Windows........................................ 116
Swing-Out Windows.................................. 117
Sun Visors................................................ 117
Theft-Deterrent Systems............................. 118
Passlock
®.................................................. 118
Starting and Operating Your Vehicle......... 119
New Vehicle Break-In................................ 119
Ignition Positions....................................... 120Retained Accessory Power (RAP)............. 121
Starting the Engine.................................... 122
Fuel Regulator........................................... 123
Engine Coolant Heater.............................. 123
Automatic Transmission Operation............. 125
Parking Brake........................................... 128
Shifting Into Park (P)................................. 129
Shifting Out of Park (P)............................. 130
Parking Over Things That Burn................. 131
Engine Exhaust......................................... 132
Running the Engine While Parked............. 133
Mirrors......................................................... 134
Manual Rearview Mirror............................. 134
Automatic Dimming Rearview Mirror with
Compass and Temperature Display........ 134
Outside Manual Mirror............................... 136
Outside Camper-Type Mirrors.................... 136
Outside Power Mirrors............................... 138
Outside Convex Mirror............................... 138
Outside Heated Mirrors............................. 139
Storage Areas............................................. 139
Section 2 Features and Controls
101

Matching Transmitter(s) to Your
Vehicle
Each remote keyless entry transmitter is coded to
prevent another transmitter from unlocking your
vehicle. If a transmitter is lost or stolen, a
replacement can be purchased through your
dealer/retailer. Remember to bring any remaining
transmitters with you when you go to your
dealer/retailer. When the dealer/retailer matches
the replacement transmitter to your vehicle,
any remaining transmitters must also be matched.
Once your dealer/retailer has coded the new
transmitter, the lost transmitter will not unlock your
vehicle. Each vehicle can have a maximum of
four transmitters matched to it.
Resynchronization
Resynchronization may be necessary due to the
security method used by this system. The
transmitter does not send the same signal twice to
the receiver. The receiver will not respond to a
signal that has been sent previously. This prevents
anyone from recording and playing back the
signal from the transmitter.To resynchronize your transmitter, stand close to
your vehicle and press and hold the lock and
unlock buttons on the transmitter at the same time
for seven seconds. The door locks should cycle
to confirm synchronization. If the locks do not
cycle, see your dealer/retailer for service.
Battery Replacement
Under normal use, the battery in your remote
keyless entry transmitter should last about
four years.
You can tell the battery is weak if the transmitter
won’t work at the normal range in any location.
If you have to get close to your vehicle before the
transmitter works, it’s probably time to change
the battery.
Notice:When replacing the battery, use
care not to touch any of the circuitry. Static
from your body transferred to these surfaces
may damage the transmitter.
106

There are several ways to lock and unlock
your vehicle.
If your vehicle is equipped with keyless entry,
seeRemote Keyless Entry (RKE) System
on page 104for more information.
From the outside, use your key.
To lock the door
from the inside, slide
the manual lever
on your door down.
To unlock the door,
slide the manual
lever up.Power Door Locks
Press the bottom side
of the power door
lock switch to lock all
the doors at once.
Press the top side
of the power door lock
switch to unlock all
the doors at once.
When a door is locked, the inside door handle will
not work.
Cargo Door Relocking
This feature protects against having an unsecured
side cargo door. If the side cargo door is open
when the lock button is pressed on the door or
the remote keyless entry transmitter, all doors will
lock and then relock again after the cargo door
is closed. If the cargo door is not closed within
several minutes, the relock will not occur.
109