warning GMC SIERRA 2009 Owner's Manual

Seats and Restraint System............................. 1-1
Head Restraints
......................................... 1-3
Front Seats
............................................... 1-4
Rear Seats
..............................................1-14
Safety Belts
.............................................1-16
Child Restraints
.......................................1-38
Airbag System
.........................................1-73
Restraint System Check
............................1-90
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
......................................2-10
Windows
.................................................2-15
Theft-Deterrent Systems
............................2-18
Starting and Operating Your Vehicle
...........2-22
Mirrors
....................................................2-57
Object Detection Systems
..........................2-62
OnStar
®System
......................................2-71
Universal Home Remote System
................2-74
Storage Areas
.........................................2-81
Sunroof
..................................................2-85Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-24
Warning Lights, Gages, and Indicators
........3-33
Driver Information Center (DIC)
..................3-53
Audio System(s)
.......................................3-85
Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and the Vehicle
....... 4-2
Towing
...................................................4-45
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-4
Fuel
......................................................... 5-6
Checking Things Under the Hood
...............5-12
Rear Axle
...............................................5-49
Four-Wheel Drive
.....................................5-51
Front Axle
...............................................5-53
Noise Control System
...............................5-54
Headlamp Aiming
.....................................5-55
Bulb Replacement
....................................5-58
2009 GMC Sierra Owner ManualM

Index
To quickly locate information about the vehicle use the
Index in the back of the manual. It is an alphabetical
list of what is in the manual and the page number where
it can be found.
Safety Warnings and Symbols
A circle with a slash
through it is a safety
symbol which means
“Do Not,” “Do not do this” or
“Do not let this happen.”
A box with the word CAUTION is used to tell about
things that could hurt you or others if you were to ignore
the warning.
{CAUTION:
These mean there is something that could hurt
you or other people.Cautions tell what the hazard is and what to do to avoid
or reduce the hazard. Read these cautions.
A notice tells about something that can damage the
vehicle.
Notice:These mean there is something that could
damage your vehicle.
Many times, this damage would not be covered by the
vehicle’s warranty, and it could be costly. The notice
tells what to do to help avoid the damage.
There are also warning labels on the vehicle which use
the same words, CAUTION or Notice.
Vehicle Symbols
The vehicle has components and labels that use
symbols instead of text. Symbols are shown along
with the text describing the operation or information
relating to a specic component, control, message,
gage, or indicator.
M:This symbol is shown when you need to see your
owner manual for additional instructions or information.
*:This symbol is shown when you need to see a
service manual for additional instructions or information.
iv

Vehicle Symbol Chart
Here are some additional symbols that may be found on
the vehicle and what they mean. For more information
on the symbol, refer to the index.
0:Adjustable Pedals
9:Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
g:Audio Steering Wheel Controls or OnStar®
$:Brake System Warning Light
":Charging System
I:Cruise Control
B:Engine Coolant Temperature
O:Exterior Lamps
#:Fog Lamps
.:Fuel Gage
+:Fuses
i:Headlamp High/Low-Beam Changer
j:LATCH System Child Restraints
*:Malfunction Indicator Lamp
::Oil Pressure
g:Outside Power Foldaway Mirrors
}:Power
/:Remote Vehicle Start
>:Safety Belt Reminders
7:Tire Pressure Monitor
_:Tow/Haul Mode
F:Traction Control
M:Windshield Washer Fluid
v

The parts of the airbag that come into contact with you
may be warm, but not too hot to touch. There may be
some smoke and dust coming from the vents in the
deated airbags. Airbag ination does not prevent the
driver from seeing out of the windshield or being able to
steer the vehicle, nor does it prevent people from leaving
the vehicle.
{CAUTION:
When an airbag inates, there may be dust in the
air. This dust could cause breathing problems for
people with a history of asthma or other breathing
trouble. To avoid this, everyone in the vehicle
should get out as soon as it is safe to do so.
If you have breathing problems but cannot get out
of the vehicle after an airbag inates, then get
fresh air by opening a window or a door. If you
experience breathing problems following an airbag
deployment, you should seek medical attention.
The vehicle has a feature that may automatically unlock
the doors, turn the interior lamps on, and turn the
hazard warning ashers on when the airbags inate.
You can lock the doors, turn the interior lamps off, and
turn the hazard warning ashers off by using the
controls for those features.In many crashes severe enough to inate the airbag,
windshields are broken by vehicle deformation. Additional
windshield breakage may also occur from the right front
passenger airbag.
Airbags are designed to inate only once. After an
airbag inates, you will need some new parts for the
airbag system. If you do not get them, the airbag
system will not be there to help protect you in another
crash. A new system will include airbag modules and
possibly other parts. The service manual for the
vehicle covers the need to replace other parts.
The vehicle has a crash sensing and diagnostic
module which records information after a crash. See
Vehicle Data Recording and Privacy on page 7-16
andEvent Data Recorders on page 7-17.
Let only qualied technicians work on the airbag
systems. Improper service can mean that an airbag
system will not work properly. See your dealer/
retailer for service.
1-80

If enabled through the DIC, the turn signal lamps ash
twice to indicate unlocking has occurred. SeeDIC
Vehicle Customization (With DIC Buttons) on page 3-76.
If enabled through the DIC, the exterior lights may turn
on. See “APPROACH LIGHTING” underDIC Vehicle
Customization (With DIC Buttons) on page 3-76.
Pressing
Kon the RKE transmitter disarms the content
theft-deterrent system. SeeContent Theft-Deterrent on
page 2-18.
L(Vehicle Locator/Panic Alarm):Press and release
to locate the vehicle. The turn signal lamps ash and
the horn sounds three times.
Press and hold
Lfor more than two seconds to
activate the panic alarm. The turn signal lamps ash
and the horn sounds repeatedly for 30 seconds.
The alarm turns off when the ignition is moved to
ON/RUN or
Lis pressed again. The ignition must
be in LOCK/OFF for the panic alarm to work.
Programming Transmitters to the
Vehicle
Only RKE transmitters programmed to this vehicle
will work. If a transmitter is lost or stolen, a replacement
can be purchased and programmed through your
dealer/retailer. When the replacement transmitter is
programmed to this vehicle, all remaining transmitters
must also be reprogrammed. Any lost or stolen
transmitters will no longer work once the new transmitter
is programmed. Each vehicle can have up to eight
transmitters programmed to it. See “Relearn Remote
Key” underDIC Operation and Displays (With DIC
Buttons) on page 3-53orDIC Operation and Displays
(Without DIC Buttons) on page 3-59for instructions on
how to match RKE transmitters to your vehicle.
Battery Replacement
Replace the battery if the REPLACE BATTERY IN
REMOTE KEY message displays in the DIC. See
“REPLACE BATTERY IN REMOTE KEY” underDIC
Warnings and Messages on page 3-66for additional
information.
Notice:When replacing the battery, do not touch
any of the circuitry on the transmitter. Static
from your body could damage the transmitter.
2-6

Do not use the remote start feature if your vehicle is low
on fuel. Your vehicle may run out of fuel.
If your vehicle has the remote start feature, the RKE
transmitter functions will have an increased range of
operation. However, the range may be less while the
vehicle is running.
There are other conditions which can affect the
performance of the transmitter, seeRemote Keyless
Entry (RKE) System on page 2-4for additional
information.
/(Remote Start):This button will be on the RKE
transmitter if you have remote start.
To start the vehicle using the remote start feature:
1. Aim the transmitter at the vehicle.
2. Press and release the transmitter’s lock button.
The vehicle’s doors will lock. Immediately press
and hold the transmitter’s remote start button until
the turn signal lights ash. If you cannot see
the vehicle’s lights, press and hold the remote
start button for two to four seconds. Pressing the
remote start button again after the vehicle has
started will turn the engine off.
When the vehicle starts, the parking lamps will turn
on and remain on while the vehicle is running.If the vehicle is left running it will automatically shut
off after 10 minutes unless a time extension has
been done.
3. If it is the rst remote start since the vehicle has
been driven, repeat these steps, while the engine is
still running, to extend the engine running time by
10 minutes. Remote start can be extended one time.
After entering the vehicle during a remote start, insert
and turn the key to RUN to drive the vehicle.
To manually shut off a remote start, do any of the
following:Aim the RKE transmitter at the vehicle and press
the remote start button until the parking lamps
turn off.
Turn on the hazard warning ashers.
Turn the ignition switch on and then off.
The vehicle can be remote started two separate times
between driving sequences. The engine will run for
10 minutes after each remote start.
Or, you can extend the engine run time by another
10 minutes within the rst 10 minute remote start time
frame, and before the engine stops.
2-8

The steering can bind with the wheels turned off center.
If this happens, move the steering wheel from right
to left while turning the key to ACC/ACCESSORY.
If this doesn’t work, then the vehicle needs service.
Notice:Using a tool to force the key to turn in
the ignition could cause damage to the switch or
break the key. Use the correct key, make sure it
is all the way in, and turn it only with your hand.
If the key cannot be turned by hand, see your
dealer/retailer.
B (ACC/ACCESSORY):This position lets things like the
radio and the windshield wipers operate while the engine
is off. Use this position if the vehicle must be pushed or
towed.
C (ON/RUN):This position can be used to operate the
electrical accessories and to display some instrument
panel cluster warning and indicator lights. The switch
stays in this position when the engine is running.
The transmission is also unlocked in this position on
automatic transmission vehicles.
If you leave the key in the ACC/ACCESSORY or ON/
RUN position with the engine off, the battery could be
drained. You may not be able to start the vehicle if the
battery is allowed to drain for an extended period of time.D (START):This is the position that starts the engine.
When the engine starts, release the key. The ignition
switch returns to ON/RUN for driving.
A warning tone will sound when the driver door is
opened, the ignition is in ACC/ACCESSORY or
LOCK/OFF and the key is in the ignition.
Retained Accessory Power (RAP)
The following vehicle accessories can be used for up to
10 minutes after the engine is turned off:
Audio System
Power Windows
OnStar®System (if equipped)
Sunroof (if equipped)
These features work when the key is in ON/RUN or
ACC/ACCESSORY. Once the key is turned from
ON/RUN to LOCK/OFF, the windows and sunroof
continue to work up to 10 minutes until any door
is opened. The radio continues to work for up to
10 minutes or until the driver door is opened.
2-23

2m(Two-Wheel-Drive High):This setting is used for
driving in most street and highway situations. The front
axle is not engaged in Two-Wheel Drive. This setting also
provides the best fuel economy.
4
m(Four-Wheel-Drive High):Use the
Four-Wheel-Drive High position when extra
traction is needed, such as on snowy or icy roads
or in most off-road situations. This setting also engages
the front axle to help drive the vehicle. This is the best
setting to use when plowing snow.
4
n(Four-Wheel-Drive Low):This setting also engages
the front axle and delivers extra torque. You may never
need this setting. It sends maximum power to all four
wheels. You might choose Four-Wheel-Drive Low while
driving off-road in deep sand, deep mud, deep snow, and
while climbing or descending steep hills.
If the vehicle has StabiliTrak
®, shifting into
Four-Wheel-Drive Low will turn Traction Control and
StabiliTrak
®off. SeeStabiliTrak®System on page 4-6.
{CAUTION:
Shifting the transfer case to N (Neutral) can
cause the vehicle to roll even if the transmission
is in P (Park). You or someone else could be
seriously injured. Be sure to set the parking brake
before placing the transfer case in N (Neutral).
SeeParking Brake on page 2-50.
N (Neutral):Shift the vehicle’s transfer case
to N (Neutral) only when towing the vehicle.
SeeRecreational Vehicle Towing on page 4-45or
Towing Your Vehicle on page 4-45for more information.
If the SERVICE 4–Wheel Drive message stays on,
you should take the vehicle to your dealer/retailer
for service. See “Service 4–Wheel Drive message”
underDIC Warnings and Messages on page 3-66.
2-42

If the vehicle has StabiliTrak®, shifting into
Four-Wheel-Drive Low will turn Traction Control and
StabiliTrak
®off. SeeStabiliTrak®System on page 4-6.
{CAUTION:
Shifting the transfer case to N (Neutral) can
cause the vehicle to roll even if the transmission
is in P (Park). You or someone else could be
seriously injured. Be sure to set the parking brake
before placing the transfer case in N (Neutral).
SeeParking Brake on page 2-50.
N (Neutral):Shift the vehicle’s transfer case
to N (Neutral) only when towing the vehicle. See
Recreational Vehicle Towing on page 4-45orTowing
Your Vehicle on page 4-45for more information.If the SERVICE 4-Wheel Drive message stays on,
you should take the vehicle to your dealer/retailer
for service. See “Service 4-Wheel Drive message”
underDIC Warnings and Messages on page 3-66.
Shifting Into Four-Wheel-Drive High
or AUTO (Automatic Four-Wheel Drive)
Turn the knob to the Four-Wheel-Drive High or AUTO
position. This can be done at any speed, except when
shifting from Four-Wheel-Drive Low. The indicator light
will ash while shifting. It will remain on when the shift is
completed.
Shifting Into Two-Wheel-Drive High
Turn the knob to the Two-Wheel-Drive High position.
This can be done at any speed, except when shifting
from Four-Wheel-Drive Low. The indicator light will
ash while shifting. It will remain on when the shift
is completed.
2-47

Shifting Out of Neutral
To shift out of N (Neutral) do the following:
1. Set the parking brake and apply the regular
brake pedal.
2. Turn the ignition to ON/RUN with the engine off,
and shift the transmission to N (Neutral).
3. Turn the transfer case dial to Two-Wheel-Drive
High, Four-Wheel-Drive High, AUTO.
After the transfer case has shifted out of N (Neutral),
the N (Neutral) light will go out.
4. Release the parking brake prior to moving the
vehicle.
Notice:Shifting the transmission into gear before
the requested mode indicator light has stopped
ashing could damage the transfer case. To help
avoid damaging the vehicle, always wait for the
mode indicator lights to stop ashing before
shifting the transmission into gear.
5. Start the engine and shift the transmission to the
desired position.
Parking Brake
For vehicles with a release handle, set the parking
brake by holding the regular brake pedal down, then
pushing down the parking brake pedal.
If the ignition is on, the brake system warning light will
come on. SeeBrake System Warning Light on page 3-42.
A chime sounds and the warning light ashes when
the parking brake is applied and the vehicle is moving
at least 5 mph (8 km/h).
To release the parking brake, hold the regular brake
pedal down. Then pull the bottom edge of the lever with
the parking brake symbol, located above the parking
brake pedal.
2-50