2004 CHEVROLET TAHOE ECU

Front Seats......................................................1-3
Manual Seats................................................1-3
Power Seats..................................................1-4
Power Lumbar...............................................1-5
Heated Seats.................................................1-6
Reclining Seatbacks........................................1-7
Head Restraints.............................................1-9
Rear Seats.....................................................1-10
Rear Seat Operation.....................................1-10
60/40 Split Bench Seat..................................1-11
50/50 Split Bench Seat..................................1-13
Bench Seat..................................................1-18
Bucket Seats...............................................1-23
Safety Belts...................................................1-26
Safety Belts: They Are for Everyone................1-26
Questions and Answers About Safety Belts......1-30
How to Wear Safety Belts Properly.................1-31
Driver Position..............................................1-31
Safety Belt Use During Pregnancy..................1-39
Right Front Passenger Position.......................1-40
Center Passenger Position.............................1-40
Rear Seat Passengers..................................1-42
Rear Safety Belt Comfort Guides for
Children and Small Adults..........................1-45
Safety Belt Extender.....................................1-47Child Restraints.............................................1-48
Older Children..............................................1-48
Infants and Young Children............................1-50
Child Restraint Systems.................................1-54
Where to Put the Restraint.............................1-57
Top Strap....................................................1-58
Top Strap Anchor Location.............................1-59
Lower Anchorages and Top Tethers for
Children (LATCH System)...........................1-62
Securing a Child Restraint Designed for
the LATCH System....................................1-64
Securing a Child Restraint in a Rear
Outside Seat Position................................1-64
Securing a Child Restraint in a Center
Rear Seat Position....................................1-67
Securing a Child Restraint in the Center
Front Seat Position....................................1-69
Securing a Child Restraint in the Right
Front Seat Position....................................1-70
Air Bag Systems............................................1-74
Where Are the Air Bags?...............................1-77
When Should an Air Bag Inate?....................1-80
What Makes an Air Bag Inate?.....................1-81
How Does an Air Bag Restrain?.....................1-82
Section 1 Seats and Restraint Systems
1-1

To create a load oor release the panels from the
seatback by pushing forward on the latch. Then fold the
panels back to cover the rear seat footwell area.To return the seat to the passenger position on a
extended model do the following:
1. Lift the oor load panels and latch them into the
seatback.
2. Lift the seatback up and push rearward all the way.
3. Lower the seat cushion until it latches into
position.
4. Pull forward on the seatback and up on the seat
cushion to make sure the seat is securely in
place.
Make sure that the buckles on the driver’s side seatback
are accessible to the outboard and center occupant
and are not under the seat cushions.
On regular models make sure the head restraints are
returned to the upright position.
1-12

Once the third seatback has been folded down, the
entire seat can be tilted forward to create a at
load oor. To do this, do the following:
1. Enter the rear cargo area of the vehicle.
2. Make sure the head restraints have been lowered
completely.
3. With the seat folded, unlatch the seat from the oor
by pulling up on the lever located under the
carrying handle at the rear of the seat labeled 2.
4. Lift the rear of the seat up, off the oor. You will not
be able to unlatch the seat from the oor unless the
seatback is folded down.
5. Tilt the seat fully forward and secure it in place
using the support rod located on the underside
of the seat on the passenger’s side. Make sure the
rod pin is fully engaged in the lock.
6. Push and pull on the seat. Make sure the support
rod is holding it rmly in place. Use the seat in this
position only when necessary for additional
cargo space.To return the seat to the seating position do the
following:
1. Push forward on the seat and release the support
lock rod.
2. Secure the support rod in its stored position on the
underside of the seat.
3. Lower the seat to the oor and let the seat drop
into place.
4. Lift up on the carrying handle to make sure the seat
is locked in place.
5. Return the seatback to the upright position by
pulling up on the release lever labeled 1 before
the back can be folded upright.
6. Pull the seatback forward to make sure it is locked
in place.
1-15

Replacing the 50/50 Split Bench Seat
{CAUTION:
If the seatback is not locked, it could move
forward in a sudden stop or crash. That could
cause injury to the person sitting there. Always
press rearward on the seatback to be sure it is
locked.
{CAUTION:
A seat that isn’t locked into place properly can
move around in a collision or sudden stop.
People in the vehicle could be injured. Be sure
to lock the seat into place properly when
installing it.
{CAUTION:
A safety belt that is improperly routed, not
properly attached, or twisted will not provide
the protection needed in a crash. The person
wearing the belt could be seriously injured.
After raising the rear seatback, always check
to be sure that the safety belts are properly
routed and attached, and are not twisted.
To reinstall the 50/50 split bench, do the following:
1. While holding the rear of the seat up, slide the front
wheels into the slots on the oor. The front latches
should lock into place. If the latches do not lock,
try tilting the rear of the seats upwards.
2. Once the latches are engaged, let the seat drop
into place. Release the lever labeled 1 to return
the seat to its upright position.
3. Push and pull on the seat to make sure it is locked
into place. The seatback cannot be raised to the
upright position unless the seat is secured to
the oor.
1-17

3. With the seat folded,
unlatch the seat from
the oor by pulling
up on the lever located
under the carrying
handle at the rear of
the seat labeled 2.
4. Lift the rear of the seat up, off the oor. You will not
be able to unlatch the seat from the oor unless the
seatback is folded down.
5. Tilt the seat fully forward and secure it in place
using the support rod located on the underside
of the seat on the passenger’s side. Make sure the
rod pin is fully engaged in the lock.
6. Push and pull on the seat. Make sure the support
rod is holding it rmly in place. Use the seat in this
position only when necessary for additional
cargo space.To return the seat to the seating position do the
following:
1. Push forward on the seat and release the support
lock rod.
2. Secure the support rod in its stored position on the
underside of the seat.
3. Lower the seat to the oor and let the seat drop
into place.
4. Lift up on the carrying handle to make sure the seat
is locked in place.
5. Return the seatback to the upright position by
pulling up on the release lever labeled 1 before
the back can be folded upright.
6. Pull the seatback forward to make sure it is locked
in place.
1-20

Replacing the Bench Seat
{CAUTION:
If the seatback is not locked, it could move
forward in a sudden stop or crash. That could
cause injury to the person sitting there. Always
press rearward on the seatback to be sure it is
locked.
{CAUTION:
A seat that isn’t locked into place properly can
move around in a collision or sudden stop.
People in the vehicle could be injured. Be sure
to lock the seat into place properly when
installing it.
{CAUTION:
A safety belt that is improperly routed, not
properly attached, or twisted will not provide
the protection needed in a crash. The person
wearing the belt could be seriously injured.
After raising the rear seatback, always check
to be sure that the safety belts are properly
routed and attached, and are not twisted.
To reinstall the full bench seat, do the following:
1. While holding the rear of the seat up, slide the front
wheels into the slots on the oor. The front latches
should lock into place. If the latches do not lock,
try tilting the rear of the seats upwards.
2. Once the latches are engaged, let the seat drop
into place. Release the lever labeled 1 to return
the seat to its upright position.
3. Push and pull on the seat to make sure it is locked
into place. The seatback cannot be raised to the
upright position unless the seat is secured to
the oor.
1-22

3. Pick up the latch plate and pull the belt across you.
Don’t let it get twisted.
The shoulder belt may lock if you pull the belt
across you very quickly. If this happens, let the belt
go back slightly to unlock it. Then pull the belt
across you more slowly.4. Push the latch plate into the buckle until it clicks.
Pull up on the latch plate to make sure it is secure.
If the belt isn’t long enough, seeSafety Belt
Extender on page 1-47.
Make sure the release button on the buckle is
positioned so you would be able to unbuckle the
safety belt quickly if you ever had to.
5. To make the lap part tight, pull down on the buckle
end of the belt as you pull up on the shoulder belt.
1-32

1. Pick up the latch plate and pull the belt across you.
Do not let it get twisted.
The shoulder belt may lock if you pull the belt
across you very quickly. If this happens, let the belt
go back slightly to unlock it. Then pull the belt
across you more slowly.
2. Push the latch plate into the buckle until it clicks.
Pull up on the latch plate to make sure it is secure.When the shoulder belt is pulled out all the way, it
will lock. If it does, let it go back all the way
and start again.
If the belt is not long enough, seeSafety Belt
Extender on page 1-47.
Make sure the release button on the buckle is
positioned so you would be able to unbuckle the
safety belt quickly if you ever had to.
3. To make the lap part tight, pull down on the buckle
end of the belt as you pull up on the shoulder part.
1-43