2000 GMC SIERRA ECU

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5. To tighten the belt, pull its free end while you push
down on the child restraint. If you're using a
forward
-facing child restraint, you may find it
helpful to use your knee to push down on the child
restraint as you tighten the belt.
6. 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. It will be ready to work for an adult or larger
child passenger.
Securing a Child Restraint in the Right
Front Seat Position
Your vehicle has a right front passenger air bag. There's
a switch on the instrument panel that you can use to turn
off the right front passenger's air bag when you want to
secure a rear
-facing child restraint at the right front
passenger's position. See ªAIR BAG OFF Switchº
in the Index for more on this, including important
safety information.

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CAUTION:
A child in a rear-facing child restraint can be
seriously injured or killed if the right front
passenger's air bag inflates. This is because the
back of the rear
-facing child restraint would be
very close to the inflating air bag. Be sure to turn
off the air bag before using a rear
-facing child
restraint in the right front seat position. If a
forward
-facing child restraint is suitable for your
child, always move the passenger seat as far back
as it will go.
Although a rear seat is a safer place, you can secure a
forward
-facing child restraint in the right front seat.

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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 inflate
even though the switch is off.
If your vehicle is a regular cab pickup and this
ever happens, don't let anyone whom the
national government has identified 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
ªAIR BAG OFF Switchº in the Index.
If your vehicle is an extended cab pickup and this
ever happens, don't let anyone whom the national
government has identified 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 the right front
passenger's seat) until you have your vehicle
serviced. See ªAIR BAG OFF Switchº in the Index.
You'll be using the lap-shoulder belt. See the earlier part
about the top strap if the child restraint has one. 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. Your vehicle has a right front passenger's air bag.
If you are using a rear
-facing child restraint in this
seat, make sure the air bag is turned off. (See ªAIR
BAG OFF Switchº in the Index.) If your child
restraint is forward
-facing, always move the seat as
far back as it will go before securing it in this seat.
(See ªSeatsº in the Index.)
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.
If the shoulder belt goes in front of the child's face or
neck, put it behind the child restraint.

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6. To tighten the belt, feed the shoulder belt back into
the retractor while you push down on the child
restraint. If you're using a forward
-facing child
restraint, you may find 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, 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. See ªAIR BAG OFF
Switchº in the Index.
CAUTION:
If the right front passenger's air bag is turned off
for a person who isn't in a risk group identified
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 inflate 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 ªAIR BAG
OFF Switchº in the Index for more on this,
including important safety information.

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1. Insert a dime in the slot between the covers of the
transmitter housing near the key ring hole. Remove
the bottom by twisting the dime.
2. Remove and replace the battery with a three
-volt
CR2032 or equivalent battery, positive (+) side up.
3. Align the covers and snap them together.
4. Resynchronize the transmitter.
5. Check the operation of the transmitter.
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 for service.
Rear Access Door (Extended Cab)
Your vehicle is equipped with a rear access door that
allows easier access to the rear area of the extended cab.
To open a rear access door
from the outside, first open
the front door. Then, use the
handle located on the front
edge of the rear access door
to open it.
You must fully close a rear access door before you can
close the front door.

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To open a rear access door
from the inside, the front
door must be opened first.
Then, use the handle located
on the inside of the rear
access door to open it.
Tailgate
You can open the tailgate by lifting up on its handle
while pulling the tailgate toward you.
To shut the tailgate, firmly push it upward until
it latches.
After you put the tailgate back up, pull it back towards
you to be sure it latches securely.
Tailgate Removal
The tailgate on your vehicle can be removed to allow for
different loading situations. Although the tailgate can be
removed without assistance, you may want someone to
assist you with the removal to avoid possible damage to
the vehicle.
To remove the tailgate:
1. Raise the tailgate
slightly and release both
retaining cable clips. To
release the retaining
cable clips, lift the cable
so it points straight out
and push the cable
clip forward.

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2. With the tailgate at a
slight upward angle, pull
back on the tailgate at
the right edge and then
move the tailgate to the
right to release the
left edge.
Reverse the above procedure to reinstall. Make sure the
tailgate is secure.Theft
Vehicle theft is big business, especially in some cities.
Although your vehicle has a number of theft
-deterrent
features, we know that nothing we put on it can make it
impossible to steal. However, there are ways you
can help.
Key in the Ignition
If you leave your vehicle with the keys inside, it's an
easy target for joy riders or professional thieves
-- so
don't do it.
When you park your vehicle and open the driver's door,
you'll hear a chime reminding you to remove your key
from the ignition and take it with you. Always do this.
Your steering wheel will be locked, and so will your
ignition. If you have an automatic transmission, taking
your key out also locks your transmission. Also
remember to lock the doors.
If the key is in the ignition, with any door open, and you
try to lock your doors with the power door locks, the
driver's door will not stay locked. This will help to keep
you from locking your keys in the vehicle.

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Park in a lighted spot, close all windows and lock your
vehicle. Remember to keep your valuables out of sight.
Put them in a storage area, or take them with you.
Parking Lots
If you park in a lot where someone will be watching
your vehicle, it's best to lock it up and take your keys.
But what if you have to leave your ignition key? What if
you have to leave something valuable in your vehicle?

Put your valuables in a storage area, like your
glove box.

Valuables can be locked in the center floor console.

If your vehicle has a remote keyless entry system,
take the transmitter with you.

Lock all the doors except the driver's.
Content Theft-Deterrent
(If Equipped)
Your vehicle may be equipped with a Content
Theft
-Deterrent alarm system.
With this system, the
SECURITY message will
flash as you open the door
(if your ignition is off).
This message reminds you to activate the theft
-deterrent
system. Here's how to do it:
1. Open the door.
2. Lock the door with the power door lock switch or the
remote keyless entry transmitter. The SECURITY
message should come on and stay on. If using the
remote keyless entry transmitter, the door does not
need to be open.
3. Close all doors. The SECURITY message should go
off after approximately 15 seconds. The alarm is not
armed until the SECURITY message goes off.