2004 GMC SAVANA ECU

{CAUTION:
If the air bag readiness light ever comes on
when you have turned off the air bag, it means
that something may be wrong with the air bag
system. The right front passenger’s air bag
could inate even though the switch is off. If
this ever happens, don’t let anyone whom the
national government has identied as a
member of a passenger air bag risk group sit
in the right front passenger’s position (for
example, don’t secure a rear-facing child
restraint in your vehicle) until you have your
vehicle serviced. See″Air Bag Off Switch″in
the Index.If your child restraint does not have the LATCH system,
you’ll be using the lap-shoulder belt to secure the
child restraint in this position. Be sure to follow the
instructions that came with the child restraint. Secure
the child in the child restraint when and as the
instructions say.
1. If your vehicle has a passenger air bag and an air
bag off switch, and you are using a rear-facing child
restraint in this seat, make sure the air bag is
turned off. SeeAir Bag Off Switch on page 1-75.If
your child restraint is forward-facing, always
move the seat as far back as it will go before
securing it in this seat. SeePower Seat on page 1-4
orManual Seats on page 1-3.
2. Put the restraint on the seat.
3. Pick up the latch plate, and run the lap and shoulder
portions of the vehicle’s safety belt through or
around the restraint. The child restraint instructions
will show you how.
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6. To tighten the belt, pull the shoulder portion of the
belt to tighten the lap portion of the belt and feed
the shoulder belt back into the retractor. You
may nd it helpful to use your knee to push down
on the child restraint as you tighten the belt.
7. Push and pull the child restraint in different
directions to be sure it is secure.To remove the child restraint, just unbuckle the vehicle’s
safety belt and let it go back all the way. The safety
belt will move freely again and be ready to work for an
adult or larger child passenger.
If you were using a rear-facing child restraint in a
vehicle with an air bag off switch, turn on the right front
passenger’s air bag when you remove the rear-facing
child restraint from the vehicle unless the person
who will be sitting there is a member of a passenger air
bag risk group. SeeAir Bag Off Switch on page 1-75.
{CAUTION:
If the right front passenger’s air bag is turned
off for a person who isn’t in a risk group
identied by the national government, that
person won’t have the extra protection of an
air bag. In a crash, the air bag wouldn’t be able
to inate and help protect the person sitting
there. Don’t turn off the passenger’s air bag
unless the person sitting there is in a risk
group. See″Air Bag Off Switch″in the Index
for more on this, including important safety
information.
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If your vehicle has an air bag for the right front
passenger read this.
{CAUTION:
Anyone who is up against, or very close to,
any air bag when it inates can be seriously
injured or killed. Air bags 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 air bag
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 1-32andInfants
and Young Children on page 1-36.There is a air bag
readiness light on the
instrument panel, which
shows the air bag symbol.
The system checks the air bag electrical system for
malfunctions. The light tells you if there is an electrical
problem. SeeAir Bag Readiness Light on page 3-28
for more information.
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To turn off the right front passenger’s air bag, insert
your ignition key into the switch, push in, and move the
switch to AIR BAG OFF.The AIR BAG OFF light will come on to let you know
that the right front passenger’s air bag is off. The
right front passenger’s air bag will remain off until you
turn it back on again, and the AIR BAG OFF light
will stay on to remind you that the air bag is off.
{CAUTION:
If the air bag readiness light ever comes on
when you have turned off the air bag, it means
that something may be wrong with the air bag
system. The right front passenger’s air bag
could inate even though the switch is off. If
this ever happens, don’t let anyone whom the
national government has identied as a
member of a passenger air bag risk group sit
in the right front passenger’s position (for
example, don’t secure a rear-facing child
restraint in your vehicle) until you have your
vehicle serviced.
1-77

Adding Equipment to Your Air
Bag-Equipped Vehicle
Q:If I add a push bumper or a bicycle rack to the
front of my vehicle, will it keep the air bags
from working properly?
A:As long as the push bumper or bicycle rack is
attached to your vehicle so that the vehicle’s
basic structure isn’t changed, it’s not likely to keep
the air bags from working properly in a crash.
Q:Is there anything I might add to the front of the
vehicle that could keep the air bags from
working properly?
A:Yes. If you add things that change your vehicle’s
frame, bumper system, front end sheet metal or
height, they may keep the air bag system
from working properly. Also, the air bag system
may not work properly if you relocate any of the air
bag 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 theCustomer Satisfaction
Procedure on page 7-2.
Restraint System Check
Checking Your Restraint Systems
Now and then, make sure the safety belt reminder light
and all your belts, buckles, latch plates, retractors
and anchorages are working properly. Look for any other
loose or damaged safety belt system parts. If you see
anything that might keep a safety belt system from doing
its job, have it repaired.
Torn or frayed safety belts may not protect you in a
crash. They can rip apart under impact forces. If a belt
is torn or frayed, get a new one right away.
Also look for any opened or broken air bag covers, and
have them repaired or replaced. (The air bag system
does not need regular maintenance.)
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Keys...............................................................2-2
Remote Keyless Entry System.........................2-4
Remote Keyless Entry System Operation...........2-5
Doors and Locks.............................................2-8
Door Locks....................................................2-8
Power Door Locks..........................................2-9
Cargo Door Relocking.....................................2-9
Rear Door Security Locks..............................2-10
Lockout Protection........................................2-11
Leaving Your Vehicle....................................2-11
Sliding Side Door..........................................2-11
60/40 Swing-Out Side Door............................2-13
Rear Doors..................................................2-15
Windows........................................................2-16
Manual Windows..........................................2-17
Power Windows............................................2-17
Swing-Out Windows......................................2-18
Sun Visors...................................................2-19
Theft-Deterrent Systems..................................2-19
Passlock
®....................................................2-20Starting and Operating Your Vehicle................2-20
New Vehicle Break-In....................................2-20
Ignition Positions..........................................2-21
Starting Your Engine.....................................2-22
Engine Coolant Heater..................................2-23
Automatic Transmission Operation...................2-24
All-Wheel Drive............................................2-26
Parking Brake..............................................2-26
Shifting Into Park (P).....................................2-27
Shifting Out of Park (P).................................2-29
Parking Over Things That Burn.......................2-30
Engine Exhaust............................................2-30
Running Your Engine While You Are Parked. . . .2-31
Mirrors...........................................................2-32
Manual Rearview Mirror.................................2-32
Outside Manual Mirror...................................2-32
Outside Camper-Type Mirrors.........................2-32
Outside Power Mirrors...................................2-33
Outside Convex Mirror...................................2-34
Outside Heated Mirrors..................................2-34
OnStar®System.............................................2-35
Storage Areas................................................2-36
Section 2 Features and Controls
2-1

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. Remember to bring
any remaining transmitters with you when you go to
your dealer. When the dealer matches the replacement
transmitter to your vehicle, any remaining transmitters
must also be matched. Once your dealer 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 conrm
synchronization. If the locks do not cycle, see your
dealer 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.
2-6

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 the owner from 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 re-lock again after the cargo door is closed. If
the cargo door is not closed within several minutes,
the re-lock will not occur.
2-9