2011 CHEVROLET SUBURBAN ECU

Black plate (17,1)Chevrolet Tahoe/Suburban Owner Manual - 2011
Keys, Doors and Windows 2-17
See your dealer or a locksmith who
can service PASS-Key III+ to get a
new key blank cut exactly as the
ignition key that operates the
system.
To program the new additional key:
1. Verify that the new key has a
1
stamped on it.
2. Insert the original, already programmed key in the ignition
and start the engine. If the
engine will not start, see your
dealer for service.
3. After the engine has started, turn the key to LOCK/OFF, and
remove the key. 4. Insert the new key to be
programmed and turn it to the
ON/RUN position within
five seconds of turning the
ignition to the LOCK/OFF
position in Step 3.
The security light will turn off
once the key has been
programmed.
5. Repeat Steps 1 through 4 if additional keys are to be
programmed.
If you lose or damage your
PASS-Key III+ key, see your dealer
or a locksmith who can service
PASS-Key III+ to have a new
key made.
Do not leave the key or device that
disarms or deactivates the
theft-deterrent system in the vehicle.
Exterior Mirrors
Convex Mirrors
{WARNING
A convex mirror can make things,
like other vehicles, look farther
away than they really are. If you
cut too sharply into the right lane,
you could hit a vehicle on the
right. Check the inside mirror or
glance over your shoulder before
changing lanes.
The passenger side mirror is convex
shaped. A convex mirror's surface is
curved so more can be seen from
the driver seat.

Black plate (1,1)Chevrolet Tahoe/Suburban Owner Manual - 2011
Seats and Restraints 3-1
Seats and
Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . . . 3-2
Front Seats
Seat Adjustment . . . . . . . . . . . . . . 3-3
Center Seat . . . . . . . . . . . . . . . . . . . 3-4
Power Seat Adjustment . . . . . . . 3-4
Lumbar Adjustment . . . . . . . . . . . 3-6
Reclining Seatbacks . . . . . . . . . . 3-7
Heated Front Seats . . . . . . . . . . . 3-9
Heated and Ventilated FrontSeats . . . . . . . . . . . . . . . . . . . . . . . 3-10
Rear Seats
Heated Rear Seats . . . . . . . . . . 3-11
Second Row Seats (60/40Split Bench Seat) . . . . . . . . . . . 3-11
Second Row Seats (Bucket Seats) . . . . . . . . . . . . . . . . . . . . . . 3-15
Third Row Seats . . . . . . . . . . . . . 3-20
Safety Belts
Safety Belts . . . . . . . . . . . . . . . . . . 3-24
How to Wear Safety Belts Properly . . . . . . . . . . . . . . . . . . . . 3-27
Lap-Shoulder Belt . . . . . . . . . . . 3-33
Safety Belt Use During Pregnancy . . . . . . . . . . . . . . . . . . 3-38
Lap Belt . . . . . . . . . . . . . . . . . . . . . 3-39
Safety Belt Extender . . . . . . . . . 3-40
Safety System Check . . . . . . . . 3-40
Safety Belt Care . . . . . . . . . . . . . 3-40
Replacing Safety Belt System Parts After a Crash . . . . . . . . . 3-40
Airbag System
Airbag System . . . . . . . . . . . . . . . 3-41
Where Are the Airbags? . . . . . 3-43
When Should an AirbagInflate? . . . . . . . . . . . . . . . . . . . . . 3-45
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . 3-47
How Does an Airbag Restrain? . . . . . . . . . . . . . . . . . . . 3-47
What Will You See After an Airbag Inflates? . . . . . . . . . . . . 3-48
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . 3-49
Servicing the Airbag-Equipped Vehicle . . . . . . . . . . . . . . . . . . . . . 3-54 Adding Equipment to the
Airbag-Equipped Vehicle . . . 3-54
Airbag System Check . . . . . . . . 3-56
Replacing Airbag System Parts After a Crash . . . . . . . . . 3-56
Child Restraints
Older Children . . . . . . . . . . . . . . . 3-57
Infants and Young
Children . . . . . . . . . . . . . . . . . . . . 3-59
Child Restraint Systems . . . . . 3-61
Where to Put the Restraint . . . 3-63
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . 3-65
Replacing LATCH System Parts After a Crash . . . . . . . . . 3-73
Securing Child Restraints (Rear Seat Position) . . . . . . . . 3-74
Securing Child Restraints (Center Front Seat
Position) . . . . . . . . . . . . . . . . . . . 3-77
Securing Child Restraints (Right Front Seat
Position) . . . . . . . . . . . . . . . . . . . 3-77

Black plate (34,1)Chevrolet Tahoe/Suburban Owner Manual - 2011
3-34 Seats and Restraints
2. Pick up the latch plate and pullthe belt across you. Do not let it
get twisted.
The lap-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.
If the shoulder portion of a
passenger belt with a free‐falling
latch plate is pulled out all the
way, the child restraint locking
feature may be engaged. If this
happens, let the belt go back all
the way and start again.
Engaging the child restraint
locking feature in the right front
seating position may affect the
passenger sensing system,
if equipped. See Passenger
Sensing System on page 3‑49
for more information.
If the belt stops before it reaches
the buckle, for lap‐shoulder belts
with cinching latch plates, tilt the
latch plate and keep pulling the
safety belt until it can be
buckled.3. Push the latch plate into the buckle until it clicks. If you find
that the latch plate will not go
fully into the buckle, see if you
are using the correct buckle.
Pull up on the latch plate to
make sure it is secure. If the belt
is not long enough, see Safety
Belt Extender on page 3‑40.
Position the release button on
the buckle so that the safety belt
could be quickly unbuckled if
necessary.

Black plate (40,1)Chevrolet Tahoe/Suburban Owner Manual - 2011
3-40 Seats and Restraints
Safety Belt Extender
If the vehicle's safety belt will fasten
around you, you should use it.
But if a safety belt is not long
enough, your dealer will order you
an extender. When you go in to
order it, take the heaviest coat you
will wear, so the extender will be
long enough for you. To help avoid
personal injury, do not let someone
else use it, and use it only for the
seat it is made to fit. The extender
has been designed for adults. Never
use it for securing child seats. To
wear it, attach it to the regular safety
belt. For more information, see the
instruction sheet that comes with
the extender.
Safety System Check
Now and then, check that the safety
belt reminder light, safety belts,
buckles, latch plates, retractors, and
anchorages are working properly.
Look for any other loose or
damaged safety belt system parts
that might keep a safety belt systemfrom doing its job. See your dealer
to 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.
Make sure the safety belt reminder
light is working. See
Safety Belt
Reminders on page 5‑18 for more
information.
Keep safety belts clean and dry.
See Safety Belt Care on page 3‑40.
Safety Belt Care
Keep belts clean and dry.
{WARNING
Do not bleach or dye safety belts.
It may severely weaken them. In
a crash, they might not be able to
provide adequate protection.
Clean safety belts only with mild
soap and lukewarm water.
Replacing Safety Belt
System Parts After a
Crash
{WARNING
A crash can damage the safety
belt system in the vehicle.
A damaged safety belt system
may not properly protect the
person using it, resulting in
serious injury or even death in a
crash. To help make sure the
safety belt systems are working
properly after a crash, have them
inspected and any necessary
replacements made as soon as
possible.

Black plate (42,1)Chevrolet Tahoe/Suburban Owner Manual - 2011
3-42 Seats and Restraints
Here are the most important things
to know about the airbag system:
{WARNING
You can be severely injured or
killed in a crash if you are not
wearing your safety belt—even if
you have airbags. Airbags are
designed to work with safety
belts, but do not replace them.
Also, airbags are not designed to
deploy in every crash. In some
crashes safety belts are your only
restraint. See When Should an
Airbag Inflate? on page 3‑45.
Wearing your safety belt during a
crash helps reduce your chance
of hitting things inside the vehicle
or being ejected from it. Airbags
are “supplemental restraints” to
the safety belts. Everyone in your
vehicle should wear a safety belt
properly —whether or not there is
an airbag for that person.
{WARNING
Airbags inflate with great force,
faster than the blink of an eye.
Anyone who is up against, or very
close to, any airbag when it
inflates can be seriously injured
or killed. Do not sit unnecessarily
close to the airbag, as you would
be if you were sitting on the edge
of the seat or leaning forward.
Safety belts help keep you in
position before and during a
crash. Always wear a safety belt,
even with airbags. The driver
should sit as far back as possible
while still maintaining control of
the vehicle.
Occupants should not lean on or
sleep against the door or side
windows in seating positions with
seat-mounted side impact airbags
and/or roof-rail airbags.
{WARNING
Children who are up against,
or very close to, any airbag
when it inflates can be seriously
injured or killed. Airbags plus
lap-shoulder belts offer protection
for adults and older children, 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, see Older
Children on page 3‑57 orInfants
and Young Children on
page 3‑59.

Black plate (45,1)Chevrolet Tahoe/Suburban Owner Manual - 2011
Seats and Restraints 3-45
{WARNING
If something is between an
occupant and an airbag, the
airbag might not inflate properly
or it might force the object into
that person causing severe injury
or even death. The path of an
inflating 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.
Do not use seat accessories that
block the inflation path of a
seat-mounted side impact airbag.
Never secure anything to the roof
of a vehicle with roof-rail airbags
by routing a rope or tie down
through any door or window
opening. If you do, the path of an
inflating roof-rail airbag will be
blocked.
When Should an Airbag
Inflate?
Frontal airbags are designed to
inflate in moderate to severe frontal
or near-frontal crashes to help
reduce the potential for severe
injuries mainly to the driver's or right
front passenger's head and chest.
However, they are only designed to
inflate if the impact exceeds a
predetermined deployment
threshold. Deployment thresholds
are used to predict how severe a
crash is likely to be in time for the
airbags to inflate and help restrain
the occupants.
Whether the frontal airbags will or
should deploy is not based on how
fast the vehicle is traveling.
It depends largely on what you hit,
the direction of the impact, and how
quickly the vehicle slows down.Frontal airbags may inflate at
different crash speeds. For
example:.If the vehicle hits a stationary
object, the airbags could inflate
at a different crash speed than if
the vehicle hits a moving object.
.If the vehicle hits an object that
deforms, the airbags could
inflate at a different crash speed
than if the vehicle hits an object
does not deform.
.If the vehicle hits a narrow object
(like a pole), the airbags could
inflate at a different crash speed
than if the vehicle hits a wide
object (like a wall).
.If the vehicle goes into an object
at an angle, the airbags could
inflate at a different crash speed
than if the vehicle goes straight
into the object.
Thresholds can also vary with
specific vehicle design.

Black plate (50,1)Chevrolet Tahoe/Suburban Owner Manual - 2011
3-50 Seats and Restraints
The passenger sensing system will
turn off the right front passenger
frontal airbag under certain
conditions. The driver airbag,
seat‐mounted side impact airbags
(if equipped) and the roof-rail
airbags are not affected by the
passenger sensing system.
The passenger sensing system
works with sensors that are part of
the right front passenger seat and
safety belt. The sensors are
designed to detect the presence of
a properly-seated occupant and
determine if the right front
passenger frontal airbag should be
enabled (may inflate) or not.
According to accident statistics,
children are safer when properly
secured in a rear seat in the correct
child restraint for their weight
and size.
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 the sun visor 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.
{WARNING
A child in a rear-facing child
restraint can be seriously injured
or killed if the right front
passenger airbag inflates. This is
because the back of the
rear-facing child restraint would
be very close to the inflating
airbag. A child in a forward-facing
child restraint can be seriously
injured or killed if the right front
passenger airbag inflates and the
passenger seat is in a forward
position.
(Continued)
WARNING (Continued)
Even if the passenger sensing
system has turned off the right
front passenger frontal airbag, no
system is fail-safe. No one can
guarantee that an airbag will not
deploy under some unusual
circumstance, even though the
airbag is turned off.
Secure rear-facing child
restraints in a rear seat, even if
the airbag is off. If you 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.

Black plate (52,1)Chevrolet Tahoe/Suburban Owner Manual - 2011
3-52 Seats and Restraints
4. Reinstall the child restraintfollowing the directions provided
by the child restraint
manufacturer and refer to
Securing Child Restraints (Rear
Seat Position) on page 3‑74 or
Securing Child Restraints
(Center Front Seat Position) on
page 3‑77 orSecuring Child
Restraints (Right Front Seat
Position) on page 3‑77.
5. If, after reinstalling the child restraint and restarting the
vehicle, the on indicator is still lit,
turn the vehicle off. Then slightly
recline the vehicle seatback and
adjust the seat cushion,
if adjustable, to make sure that
the vehicle seatback is not
pushing the child restraint into
the seat cushion.
Also make sure the child
restraint is not trapped under the
vehicle head restraint. If this
happens, adjust the head
restraint. See Head Restraints
on page 3‑2. 6. Restart the vehicle.
The passenger sensing system
may or may not turn off the
airbag for a child in a child
restraint depending upon the
child’s seating posture and body
build. It is better to secure the
child restraint in a rear seat.
If the Off Indicator is Lit for an
Adult-Size Occupant
If a person of adult size is sitting in
the right front passenger seat, but
the off indicator is lit, it could be because that person is not sitting
properly in the seat. If this happens,
use the following steps to allow the
system to detect that person and
enable the right front passenger
frontal airbag:
1. Turn the vehicle off.
2. Remove any additional material
from the seat, such as blankets,
cushions, seat covers, seat
heaters, or seat massagers.
3. Place the seatback in the fully upright position.
4. Have the person sit upright in the seat, centered on the seat
cushion, with legs comfortably
extended.
5. Restart the vehicle and have the person remain in this position for
two to three minutes after the on
indicator is lit.