2008 CHEVROLET SUBURBAN ECU

To program the new additional key:
1. Verify that the new key has a
1stamped 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/retailer 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 ve 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/retailer 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.
Starting and Operating Your
Vehicle
New Vehicle Break-In
Notice:Your vehicle does not need an elaborate
break-in. But it will perform better in the long run if
you follow these guidelines:
Keep your speed at 55 mph (88 km/h) or less for
the rst 500 miles (805 km).
Do not drive at any one constant speed, fast or
slow, for the rst 500 miles (805 km). Do not
make full-throttle starts. Avoid downshifting to
brake or slow the vehicle.
Avoid making hard stops for the rst 200 miles
(322 km) or so. During this time the new brake
linings are not yet broken in. Hard stops
with new linings can mean premature wear and
earlier replacement. Follow this breaking-in
guideline every time you get new brake linings.
Do not tow a trailer during break-in. SeeTowing
a Trailer on page 4-49for the trailer towing
capabilities of your vehicle and more
information.
Following break-in, engine speed and load can be
gradually increased.
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OnStar®System
OnStar uses several innovative technologies and live
advisors to provide you with a wide range of safety,
security, information, and convenience services. If your
airbags deploy, the system is designed to make an
automatic call to OnStar Emergency advisors who can
request emergency services be sent to your location.
If you lock your keys in the vehicle, call OnStar at
1-888-4-ONSTAR and they can send a signal to unlock
your doors. If you need roadside assistance, press
the OnStar button and they can contact Roadside
Service for you.
OnStar service is provided to you subject to the OnStar
Terms and Conditions. You may cancel your OnStar
service at any time by contacting OnStar. A completeOnStar Owner’s Guide and the OnStar Terms and
Conditions are included in the vehicle’s OnStar
Subscriber glove box literature. For more information,
visit onstar.com or onstar.ca, contact OnStar
at 1-888-4-ONSTAR (1-888-466-7827) or TTY
1-877-248-2080, or press the OnStar button to speak
with an OnStar advisor 24 hours a day, 7 days a week.
Not all OnStar features are available on all vehicles.
To check if your vehicle is equipped to provide the
services described below, or for a full description of
OnStar services and system limitations, see the OnStar
Owner’s Guide in your glove box or visit onstar.com.
OnStar Services
For new vehicles with OnStar, the Safe & Sound Plan,
or the Directions & Connections Plan is included for
one year from the date of purchase. You can extend
this plan beyond the rst year, or upgrade to the
Directions & Connections Plan. For more information,
press the OnStar button to speak with an advisor.
Some OnStar services (such as Remote Door Unlock
or Stolen Vehicle Location Assistance) may not be
available until you register with OnStar.
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Location information about your vehicle is only available
if the GPS satellite signals are unobstructed and
available.
Your vehicle must have a working electrical system
(including adequate battery power) for the OnStar
equipment to operate. There are other problems OnStar
cannot control that may prevent OnStar from providing
OnStar service to you at any particular time or place.
Some examples are damage to important parts of your
vehicle in an accident, hills, tall buildings, tunnels,
weather or wireless phone network congestion.
Your Responsibility
Increase the radio volume if you cannot hear the OnStar
advisor. If the light next to the OnStar buttons is red,
this means that your system is not functioning properly
and should be checked by your dealer/retailer. If the
light appears clear (no light is appearing), your OnStar
subscription has expired. You can always press the
OnStar button to conrm that your OnStar equipment
is active.
Universal Home Remote
System
The Universal Home Remote System provides a way to
replace up to three hand-held Radio-Frequency (RF)
transmitters used to activate devices such as garage
door openers, security systems, and home lighting.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation.
This device complies with RSS-210 of Industry Canada.
Operation is subject to the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes or modications to this system by other than
an authorized service facility could void authorization to
use this equipment.
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Universal Home Remote System
Operation (With Three Round LED)
This vehicle may have the Universal Home Remote
System. If there are three round Light Emitting
Diode (LED) indicator lights above the Universal Home
Remote buttons, follow the instructions below.
This system provides a way to replace up to three
remote control transmitters used to activate devices
such as garage door openers, security systems,
and home automation devices.Do not use this system with any garage door opener
that does not have the stop and reverse feature.
This includes any garage door opener model
manufactured before April 1, 1982.
Read the instructions completely before attempting to
program the transmitter. Because of the steps involved,
it may be helpful to have another person assist with
programming the transmitter.
Be sure to keep the original remote control transmitter
for use in other vehicles, as well as, for future
programming. Only the original remote control
transmitter is needed for Fixed Code programming.
The programmed buttons should be erased when the
vehicle is sold or the lease ends. See “Erasing Universal
Home Remote Buttons” later in this section.
Park the vehicle outside of the garage when
programming a garage door. Be sure that people and
objects are clear of the garage door or gate that is being
programmed.
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3. Immediately return to the vehicle. Press and hold
the Universal Home Remote button that will be
used to control the garage door until the garage
door moves. The indicator light, above the selected
button, should slowly blink. This button may
need to be held for up to 20 seconds.
4. Immediately, within one second, release the button
when the garage door moves. The indicator light
will blink rapidly until programming is complete.
5. Press and release the same button again. The
garage door should move, conrming that
programming is successful and complete.
To program another Rolling Code device such as an
additional garage door opener, a security device,
or home automation device, repeat Steps 1 through 5,
choosing a different function button in Step 3 than
what was used for the garage door opener.If these instructions do not work, the garage door
opener is probably a Fixed Code unit. Follow the
Programming instructions that follow for a Fixed Code
garage door opener.
Programming Universal Home
Remote — Fixed Code
For questions or help programming the Universal
Home Remote System, call 1-866-572-2728 or go to
www.learcar2u.com.
Most garage door openers sold before 1996 are
Fixed Code units.
Programming a garage door opener involves
time-sensitive actions, so read the entire procedure
before starting. Otherwise, the device will time out
and the procedure will have to be repeated.
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5. After entering all of the switch positions, again,
rmly press and release all three buttons at the
same time. The indicator lights will turn on.
6. Press and hold the button that will be used to
control the garage door until the garage door
moves. The indicator light above the selected button
should slowly blink. This button may need to be
held for up to 55 seconds.
7. Immediately release the button when the garage
door moves. The indicator light will blink rapidly
until programming is complete.
8. Press and release the same button again. The
garage door should move, conrming that
programming is successful and complete.
To program another Fixed Code device such as an
additional garage door opener, a security device,
or home automation device, repeat Steps 1-8, choosing
a different button in Step 6 than what was used for
the garage door opener.
Using Universal Home Remote
Press and hold the appropriate button for at least half of
a second. The indicator light will come on while the
signal is being transmitted.
Reprogramming Universal Home
Remote Buttons
Any of the three buttons can be reprogrammed by
repeating the instructions.
Erasing Universal Home Remote
Buttons
The programmed buttons should be erased when the
vehicle is sold or the lease ends.
To erase either Rolling Code or Fixed Code on the
Universal Home Remote device:
1. Press and hold the two outside buttons at the same
time for approximately 20 seconds, until the
indicator lights, located directly above the buttons,
begin to blink rapidly.
2. Once the indicator lights begin to blink, release both
buttons. The codes from all buttons will be erased.
For help or information on the Universal Home Remote
System, call the customer assistance phone number
underCustomer Assistance Offices on page 7-6.
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Luggage Carrier
The vehicle may have a luggage carrier that can be
used to load things on top of the vehicle.
The luggage carrier has siderails attached to the roof.
It may also have crossrails which can be moved
back and forth to help secure cargo. Tie the load to
the siderails or siderail supports.
Notice:Loading cargo on the luggage carrier that
weighs more than 200 lbs (91 kg) or hangs over
the rear or sides of the vehicle may damage your
vehicle. Load cargo so that it rests on the slats
as far forward as possible and against the side rails,
making sure to fasten it securely.
Do not exceed the maximum vehicle capacity when
loading your vehicle. For more information on vehicle
capacity and loading, seeLoading the Vehicle on
page 4-35.
To prevent damage or loss of cargo while you are
driving, check to make sure the luggage and cargo
are still securely fastened.Be sure the cargo is properly loaded.If small heavy objects are placed on the roof, cut a
piece of 3/8 inch plywood to t inside the crossrails
and siderails to spread the load. Tie the plywood
to the siderail supports.
Tie the load to the crossrails or the siderail supports.
Use the crossrails only to keep the load from
sliding. To move a crossrail, lift the release lever,
on both sides of the rail, up to loosen it. Slide
the crossrail to the desired position balancing
the force side to side. Press the release lever on
both sides of the rail, down to tighten it. Try to
slide the crossrail back and forth slightly to be
sure it is tight.
If you need to carry long items, move the crossrails
as far apart as they will go. Tie the load to the
crossrails and the siderails or siderail supports.
Also tie the load to the bumpers. Do not tie the
load so tightly that the crossrails or siderails
are damaged.
After moving a crossrail, be sure it is securely
locked into the siderail.
Your vehicle has a Center High-Mounted
Stoplamp (CHMSL) located above the rear glass.
If items are loaded on the roof of the vehicle, care
should be taken not to block or damage the CHMSL unit.
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Rear Storage Area
Your vehicle may have a storage compartment located
in the rear cargo area of the vehicle in the driver’s
side trim panel.
To open the utility compartment, turn the knobs and
swing the compartment door open. The compartment
door can be removed.
Rear Seat Armrest
Your vehicle may be equipped with a rear seat armrest.
Pull the loop at the top of the armrest down to access
the cupholders.
Cargo Cover
{CAUTION:
An improperly stored cargo cover could be
thrown about the vehicle during a collision
or sudden maneuver. You or others could be
injured. If the cover is removed, always store
it in the proper storage location. When it is
replaced, always be sure that it is securely
reattached.
If your vehicle has a cargo cover, you can use it to
cover items in the cargo area of your vehicle.
To use the cover, do the following:
1. Pull the cover handle toward the rear of the vehicle.
2. Latch the cover posts into the retaining sockets
on the cargo area trim panels.
To return the cover to the retracted position, do the
following:
1. Pull up on the cover handle to release the cover
posts from the retaining sockets.
2. Let the cover move forward to the full retracted
position.
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