2009 GMC SIERRA 1500 ECU

Disconnecting the Rear Vision Camera
To disconnect the camera:
1. Remove the license plate.
2. Disconnect the camera connector from the chassis
harness, located behind the license plate, by
pressing on the release tab on the chassis harness.
A. Camera connector
cap tab
B. Chassis harness
C. Release tabD. Camera connector
E. Retaining clip
F. Protective connector cap
G. Camera connector cap
3. Disconnect the protective connector cap from the
chassis harness by pressing on the release tab on
the chassis harness, then remove the cap.
4. Install the protective connector cap onto the chassis
harness where the camera connector was located.A. Chassis harness
B. Release tabC. Protective connector cap
D. Camera connector cap
5. Lift up on the camera connector cap tab and remove
the camera connector cap from the chassis harness,
then install the camera connector cap on the camera
connector.
6. Release the rear vision camera cable from the
retaining clip.
7. Loosen the camera harness grommet from the
pickup box and feed the harness through the
pickup box.
8. Remove the tailgate. SeeTailgate on page 2-13
for more information.
Reverse this procedure to reinstall the rear vision camera
and make sure the grommet and connection is secure.
2-68

OnStar®System
OnStar uses several innovative technologies and live
advisors to provide a wide range of safety, security,
information, and convenience services. If the 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 the
keys are locked in the vehicle, call OnStar at
1-888-4-ONSTAR to have a signal sent to unlock
the doors. OnStar Hands-Free Calling, including
30 trial minutes good for 60 days, is available on most
vehicles. OnStar Turn-by-Turn Navigation service,
with one trial route, is available on most vehicles.
Press the OnStar button to have an OnStar advisor
contact Roadside Service.OnStar service is provided subject to the OnStar Terms
and Conditions included in the OnStar Subscriber
glove box literature.
Some services such as Remote Door Unlock or Stolen
Vehicle Location Assistance may not be available
until the owner of the vehicle registers with OnStar.
After the rst prepaid year, contact OnStar to select a
monthly or annual subscription payment plan. If a
payment plan is not selected, the OnStar system and all
services, including airbag notication and emergency
services, may be deactivated and no longer available.
For more information visit onstar.com (U.S.) or onstar.ca
(Canada), or press the OnStar button to speak with
an advisor.
Not all OnStar services are available on all vehicles.
To check if this vehicle is able to provide the services
described below, or for a full description of OnStar
services and system limitations, see the OnStar Owner’s
Guide in the glove box or visit onstar.com (U.S.) or
onstar.ca (Canada), 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.
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Location information about the vehicle is only available
if the GPS satellite signals are unobstructed and
available.
The 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 at any particular time or place. Some
examples are damage to important parts of the vehicle
in a crash, hills, tall buildings, tunnels, weather or
wireless phone network congestion.
Your Responsibility
Increase the volume of the radio if the OnStar advisor
cannot be heard. If the light next to the OnStar buttons
is red, the system may not be functioning properly.
Press the OnStar button and request a vehicle
diagnostic. If the light appears clear (no light is
appearing), your OnStar subscription has expired and
all services have been deactivated. Press the OnStar
button to conrm that the 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.
2-73

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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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
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.
To program up to three devices:
1. To verify that the garage door opener is a Fixed
Code unit, remove the battery cover on the hand
held transmitter supplied by the manufacturer of
the garage door opener motor. If there are a row
of dip switches similar to the graphic above,
the garage door opener is a Fixed Code unit.
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4. The indicator lights will blink slowly. Enter each
switch setting from Step 2 into your vehicle’s
Universal Home Remote. You will have two and
one-half minutes to complete Step 4. Now
press one button on the Universal Home Remote
for each switch setting as follows:
If you wrote “Left,” press the left button in the
vehicle.
If you wrote “Right,” press the right button in the
vehicle.
If you wrote “Middle,” press the middle button in
the vehicle.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.
2-79

Luggage Carrier
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 can damage
the 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.
For vehicles with a luggage carrier, items can be loaded
on top of the vehicle.
The luggage carrier has siderails attached to the roof.
It can also have crossrails which can be moved
back and forth to help secure cargo. Tie the load to the
siderails or siderail supports.
Do not exceed the maximum vehicle capacity when
loading the vehicle. For more information on vehicle
capacity and loading, seeLoading the Vehicle on
page 4-34.
Make sure the cargo is properly loaded.
To prevent damage or loss of cargo while driving,
periodically stop and check to make sure cargo is still
securely fastened.
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 and secure it 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 up, on both sides of the rail.
Then slide the crossrail to the desired position
balancing the force side to side. Press the release
lever down on both sides of the rail, down to
tighten it. Try to slide the crossrail back and forth
slightly to make sure it is tight.
To carry long items, move the crossrails as far
apart as possible. Tie the load to the crossrails and
the siderails or siderail supports. Also tie the
load to the bumpers, but 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.
A Center High-Mounted Stoplamp (CHMSL) is located
above the rear window glass.
Make sure items loaded on the roof of the vehicle do
not block or damage the CHMSL.
Rear Seat Armrest
Vehicles with a rear seat armrest, have two cupholders.
Pull the armrest down from the rear seatback to
access the cupholders.
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StabiliTrak®Indicator Light.............................3-44
Engine Coolant Temperature Gage
(US-Canada).............................................3-44
Tire Pressure Light.......................................3-45
Malfunction Indicator Lamp.............................3-45
Oil Pressure Gage (US-Canada).....................3-48
Oil Pressure Light.........................................3-49
Security Light...............................................3-50
Fog Lamp Light............................................3-50
Cruise Control Light......................................3-50
Highbeam On Light.......................................3-50
Four-Wheel-Drive Light..................................3-51
Tow/Haul Mode Light....................................3-51
Fuel Gage...................................................3-51
Low Fuel Warning Light.................................3-52
Driver Information Center (DIC).......................3-53
DIC Operation and Displays
(With DIC Buttons)....................................3-53
DIC Operation and Displays
(Without DIC Buttons)................................3-59DIC Compass..............................................3-63
DIC Warnings and Messages.........................3-66
DIC Vehicle Customization
(With DIC Buttons)....................................3-75
Audio System(s).............................................3-84
Setting the Clock..........................................3-85
Radio(s)......................................................3-87
Using an MP3 (Radio with CD or
Six-Disc CD Player).................................3-106
Using an MP3 (Radio with CD and
DVD Player)...........................................3-111
XM Radio Messages...................................3-117
Navigation/Radio System..............................3-118
Bluetooth
®.................................................3-118
Rear Seat Entertainment (RSE) System.........3-129
Rear Seat Audio (RSA)................................3-138
Theft-Deterrent Feature................................3-140
Audio Steering Wheel Controls......................3-140
Radio Reception.........................................3-141
Fixed Mast Antenna....................................3-142
XM™ Satellite Radio Antenna System............3-142
Section 3 Instrument Panel
3-2