
Black plate (79,1)GMC Sierra Owner Manual - 2011
Vehicle Care 10-79
Vehicles that have a tire pressure
monitoring system may give an
inaccurate low‐pressure warning
if non‐TPC Spec-rated tires are
installed on the vehicle. Non‐TPC
Spec-rated tires may give a
low‐pressure warning that is
higher or lower than the proper
warning level you would get with
TPC Spec-rated tires. SeeTire
Pressure Monitor System on
page 10‑68.
The vehicle's original equipment
tires are listed on the Tire and
Loading Information label. See
Vehicle Load Limits on page 9‑25
for more information about the Tire
and Loading Information label and
its location on the vehicle.Different Size Tires and
Wheels
If you add wheels or tires that are
a different size than the original
equipment wheels and tires, this
could affect the way the vehicle
performs, including its braking,
ride and handling characteristics,
stability, and resistance to rollover.
Additionally, if the vehicle has
electronic systems such as antilock
brakes, rollover airbags, traction
control, and electronic stability
control, the performance of these
systems can be affected.
{WARNING
If different sized wheels are used,
there may not be an acceptable
level of performance and safety
if tires not recommended for
those wheels are selected.
This increases the chance
of a crash and serious injury.
Only use GM specific wheel
and tire systems developed
for the vehicle, and have them
properly installed by a GM
certified technician.
See Buying New Tires on
page 10‑77 andAccessories
and Modifications on page 10‑3
for additional information.

Black plate (14,1)GMC Sierra Owner Manual - 2011
13-14 Customer Information
If the vehicle is leased, the leasing
company may require you to have
insurance that ensures repairs with
Genuine GM Original Equipment
Manufacturer (OEM) parts or
Genuine Manufacturer replacement
parts. Read the lease carefully, as
you may be charged at the end of
the lease for poor quality repairs.
If a Crash Occurs
If there has been an injury, call
emergency services for help. Do not
leave the scene of a crash until all
matters have been taken care of.
Move the vehicle only if its position
puts you in danger, or you are
instructed to move it by a police
officer.
Give only the necessary information
to police and other parties involved
in the crash.
For emergency towing see
Roadside Assistance Program
(U.S. and Canada) on page 13‑8
orRoadside Assistance Program
(Mexico) on page 13‑10. Gather the following information:
.Driver name, address, and
telephone number.
.Driver license number.
.Owner name, address, and
telephone number.
.Vehicle license plate number.
.Vehicle make, model, and
model year.
.Vehicle Identification
Number (VIN).
.Insurance company and policy
number.
.General description of the
damage to the other vehicle.
Choose a reputable repair facility
that uses quality replacement parts.
See “Collision Parts” earlier in this
section.
If the airbag has inflated, see What
Will You See After an Airbag
Inflates? on page 3‑35.
Managing the Vehicle Damage
Repair Process
In the event that the vehicle requires
damage repairs, GM recommends
that you take an active role in its
repair. If you have a pre-determined
repair facility of choice, take the
vehicle there, or have it towed
there. Specify to the facility that any
required replacement collision parts
be original equipment parts, either
new Genuine GM parts or recycled
original GM parts. Remember,
recycled parts will not be covered
by the GM vehicle warranty.
Insurance pays the bill for the repair,
but you must live with the repair.
Depending on your policy limits,
your insurance company may
initially value the repair using
aftermarket parts. Discuss this with
the repair professional, and insist
on Genuine GM parts. Remember,
if the vehicle is leased, you may
be obligated to have the vehicle
repaired with Genuine GM parts,
even if your insurance coverage
does not pay the full cost.

Black plate (17,1)GMC Sierra Owner Manual - 2011
Customer Information 13-17
Reporting Safety Defects
to General Motors
In addition to notifying NHTSA (or
Transport Canada) in a situation like
this, please notify General Motors.
Call 1-800-GMC-8782
(1-800-462-8782), or write:
GMC Customer Assistance Center
P.O. Box 33172
Detroit, MI 48232-5172
In Canada, call 1-800-263-3777
(English) or 1-800-263-7854
(French), or write:
General Motors of Canada Limited
Customer Communication Centre,
Mail Code: CA1-163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
Vehicle Data
Recording and
Privacy
This GM vehicle has a number of
sophisticated computers that record
information about the vehicle’s
performance and how it is driven.
For example, the vehicle uses
computer modules to monitor and
control engine and transmission
performance, to monitor the
conditions for airbag deployment
and deploy airbags in a crash, and,
if so equipped, to provide antilock
braking to help the driver control the
vehicle. These modules may store
data to help the dealer technician
service the vehicle. Some modules
may also store data about how you
operate the vehicle, such as rate of
fuel consumption or average speed.
These modules may also retain the
owner’s personal preferences, such
as radio pre-sets, seat positions,
and temperature settings.
Event Data Recorders
This vehicle has an Event Data
Recorder (EDR). The main purpose
of an EDR is to record, in certain
crash or near crash-like situations,
such as an airbag deployment or
hitting a road obstacle, data that
will assist in understanding how
a vehicle's systems performed.
The EDR is designed to record data
related to vehicle dynamics and
safety systems for a short period of
time, typically 30 seconds or less.
The EDR in this vehicle is designed
to record such data as:
.How various systems in the
vehicle were operating.
.Whether or not the driver and
passenger safety belts were
buckled/fastened.
.How far, if at all, the driver was
pressing the accelerator and/or
brake pedal.
.How fast the vehicle was
traveling.

Black plate (1,1)GMC Sierra Owner Manual - 2011
INDEX i-1
A
Accessories andModifications . . . . . . . . . . . . . . . . . 10-3
Accessory Power . . . . . . . . . . . . . . 9-40
Active Fuel Management
®. . . . . 9-44
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . 9-125
Adding a Snow Plow or Similar Equipment . . . . . . . . . . . 9-125
Adjustable Throttle and Brake Pedal . . . . . . . . . . . . . . . . . . 9-35
Adjustments Lumbar, Front Seats . . . . . . . . . . . 3-6
Air Cleaner/Filter, Engine . . . . . 10-19
Air Vents . . . . . . . . . . . . . . . . . . . . . . 8-11
Airbag Light On-Off . . . . . . . . . . . . . . . . . . 5-21
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . 3-48
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . 3-35
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . . 3-40
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-34 Airbag System (cont.)
What Will You See After
an Airbag Inflates? . . . . . . . . . . 3-35
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-32
Where Are the Airbags? . . . . . . 3-31
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . 3-46
On-Off Light . . . . . . . . . . . . . . . . . . 5-21
On-Off Switch . . . . . . . . . . . . . . . . 3-37
Passenger Status Indicator . . . 5-23
Readiness Light . . . . . . . . . . . . . . 5-20
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . 3-46
System Check . . . . . . . . . . . . . . . . 3-29
Alarm System Anti-Theft . . . . . . . . . . . . . . . . . . . . . 2-12
AM-FM Radio . . . . . . . . . . . . . . . . . . . 7-8
Antenna Satellite Radio . . . . . . . . . . . . . . . . 7-15
Anti-Theft Alarm System . . . . . . . . . . . . . . . . 2-12
Alarm System Messages . . . . . 5-48 Antilock Brake
System (ABS) . . . . . . . . . . . . . . . . 9-68
Warning Light . . . . . . . . . . . . . . . . . 5-28
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . 10-108
Interior . . . . . . . . . . . . . . . . . . . . . 10-112
Armrest Storage . . . . . . . . . . . . . . . . 4-1
Ashtrays . . . . . . . . . . . . . . . . . . . . . . . 5-12
Assistance Program,
Roadside . . . . . . . . . . . . . . 13-8, 13-10
Audio Players . . . . . . . . . . . . . . . . . 7-15
CD . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15
CD/DVD . . . . . . . . . . . . . . . . . . . . . . 7-22
Audio System Fixed Mast Antenna . . . . . . . . . . 7-15
Radio Reception . . . . . . . . . . . . . . 7-14
Rear Seat (RSA) . . . . . . . . . . . . . 7-48
Theft-Deterrent Feature . . . . . . . . 7-2
Automatic Door Locks . . . . . . . . . . . . . . . . . . . . 2-9
Headlamp System . . . . . . . . . . . . . 6-4
Automatic Transmission . . . . . . . 9-46 Fluid . . . . . . . . . . . . . . . . . 10-13, 10-16
Manual Mode . . . . . . . . . . . . . . . . . 9-50
Shift Lock ControlFunction Check . . . . . . . . . . . 10-40

Black plate (8,1)GMC Sierra Owner Manual - 2011
i-8 INDEX
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . 3-26
Lap-Shoulder Belt . . . . . . . . . . . . . 3-21
LATCH SystemReplacing Parts After aCrash . . . . . . . . . . . . . . . . . . . . . . . 3-66
Latch, Lower Anchors and Tethers for Children . . . . . . . . . . 3-57
Lighter, Cigarette . . . . . . . . . . . . . . 5-11
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Illumination Control . . . . . . . . . . . . 6-7
Lights Airbag On-Off . . . . . . . . . . . . . . . . . 5-21
Airbag Readiness . . . . . . . . . . . . . 5-20
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 5-28
Brake System Warning . . . . . . . 5-27
Charging System . . . . . . . . . . . . . 5-24
Cruise Control . . . . . . . . . . . . . . . . 5-32
Engine Oil Pressure . . . . . . . . . . 5-31
Flash-to-Pass . . . . . . . . . . . . . . . . . . 6-3
Four-Wheel-Drive . . . . . . . . . . . . . 5-29
Front Fog Lamps . . . . . . . . . . . . . 5-32 Lights (cont.)
High-Beam On . . . . . . . . . . . . . . . . 5-32
High/Low Beam Changer . . . . . . 6-3
Low Fuel Warning . . . . . . . . . . . . 5-31
Safety Belt Reminders . . . . . . . . 5-19
Security . . . . . . . . . . . . . . . . . . . . . . 5-32
StabiliTrak
®Indicator . . . . . . . . . 5-30
Tire Pressure . . . . . . . . . . . . . . . . . 5-30
Tow/Haul Mode . . . . . . . . . . . . . . . 5-29
Locking Rear Axle . . . . . . . . . . . . . 9-73
Locks Automatic Door . . . . . . . . . . . . . . . . 2-9
Delayed Locking . . . . . . . . . . . . . . . 2-8
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Lockout Protection . . . . . . . . . . . . . 2-9
Power Door . . . . . . . . . . . . . . . . . . . . 2-8
Safety . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Loss of Control . . . . . . . . . . . . . . . . . 9-6
Low Fuel Warning Light . . . . . . . . 5-31
Lower Anchors and
Tethers for Children
(LATCH SYSTEM) . . . . . . . . . . . 3-57
Lumbar Adjustment . . . . . . . . . . . . . 3-6
Front Seats . . . . . . . . . . . . . . . . . . . . 3-6
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . .11-12
Maintenance Schedule Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 11-8
Scheduled Maintenance . . . . . . 11-2
Transfer Case . . . . . . . . . . . . . . . . 9-54
Malfunction Indicator Lamp . . . . 5-25
Manual Mirrors . . . . . . . . . . . . . . . . 2-15
Manual Mode . . . . . . . . . . . . . . . . . . 9-50
Manual Windows . . . . . . . . . . . . . . 2-19
Memory Features . . . . . . . . . . . . . . 1-13
Messages Airbag System . . . . . . . . . . . . . . . . 5-48
Anti-Theft Alarm System . . . . . . 5-48
Battery Voltage andCharging . . . . . . . . . . . . . . . . . . . . 5-41
Brake System . . . . . . . . . . . . . . . . 5-42
Door Ajar . . . . . . . . . . . . . . . . . . . . . 5-43
Engine Cooling System . . . . . . . 5-44
Engine Oil . . . . . . . . . . . . . . . . . . . . 5-45
Engine Power . . . . . . . . . . . . . . . . 5-45

Black plate (10,1)GMC Sierra Owner Manual - 2011
i-10 INDEX
Passenger Airbag StatusIndicator . . . . . . . . . . . . . . . . . . . . . 5-23
Passenger Sensing System . . . 3-40
Perchlorate Materials Requirements, California . . . . . 10-3
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 5-52
Phone Bluetooth . . . . . . . . . . . . . . . . . . . . . 7-50
Pickup Conversion to Chassis Cab . . . . . . . . . . . . . . . . 9-129
Pickup-Box Identification and Fender Marker
Lamps . . . . . . . . . . . . . . . . . . . . . . 10-45
Power Door Locks . . . . . . . . . . . . . . . . . . . . 2-8
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Outlets . . . . . . . . . . . . . . . . . . . . . . . 5-10
Protection, Battery . . . . . . . . . . . . 6-10
Retained Accessory (RAP) . . . 9-40
Seat Adjustment . . . . . . . . . . . . . . . 3-4
Steering Fluid . . . . . . . . . . . . . . . 10-29
Windows . . . . . . . . . . . . . . . . . . . . . 2-19 Pregnancy, Using Safety
Belts . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
Privacy Radio FrequencyIdentification (RFID) . . . . . . . 13-19
Program Courtesy Transportation . . . . .13-11
Proposition 65 Warning, California . . . . . . . . . . . . . . . . . . . . . 10-3
R
Radio FrequencyIdentification (RFID) . . . . . . . . 13-19
Statement . . . . . . . . . . . . . . . . . . 13-19
Radios AM-FM Radio . . . . . . . . . . . . . . . . . . 7-8
CD/DVD Player . . . . . . . . . . . . . . . 7-22
Reception . . . . . . . . . . . . . . . . . . . . 7-14
Satellite . . . . . . . . . . . . . . . . . . . . . . . 7-10
Reading Lamps . . . . . . . . . . . . . . . . . 6-9
Rear Axle . . . . . . . . . . . . . . . . . . . . . 10-37 Locking . . . . . . . . . . . . . . . . . . . . . . . 9-73 Rear Doors . . . . . . . . . . . . . . . . . . . . 2-10
Rear Seat Audio (RSA)
System . . . . . . . . . . . . . . . . . . . . . . . 7-48
Rear Seat Entertainment System . . . . . . . . . . . . . . . . . . . . . . . 7-39
Rear Seat Audio (RSA) . . . . . . . 7-48
Rear Seats . . . . . . . . . . . . . . 3-10, 3-11
Rear Vision Camera (RVC) . . . . 9-78
Rear Windows . . . . . . . . . . . . . . . . . 2-20
Rearview Mirrors . . . . . . . . . . . . . . 2-18 Automatic Dimming . . . . . . . . . . . 2-18
Reclining Seatbacks . . . . . . . . . . . . 3-6
Recommended Fluids and Lubricants . . . . . . . . . . . . . . . . . . . . 11-8
Recommended Fuel . . . . . . . . . . . 9-84
Records Maintenance . . . . . . . . . . . . . . . . .11-12
Recreational Vehicle Towing . . . . . . . . . . . . . . . . . . . . .10-103
Reimbursement Program, GM Mobility . . . . . . . . . . . . . . . . . . 13-7
Remote Keyless Entry (RKE) System . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Black plate (11,1)GMC Sierra Owner Manual - 2011
INDEX i-11
Remote Vehicle Start . . . . . . . . . . . 2-5
ReplacementGlass . . . . . . . . . . . . . . . . . . . . . . . 10-41
Replacement Bulbs . . . . . . . . . . . 10-48
Replacement Parts Airbags . . . . . . . . . . . . . . . . . . . . . . . 3-48
Maintenance . . . . . . . . . . . . . . . . . 11-11
Replacing Airbag System . . . . . . 3-48
Replacing LATCH System Parts After a Crash . . . . . . . . . . . 3-66
Replacing Safety Belt
System Parts After a
Crash . . . . . . . . . . . . . . . . . . . . . . . . 3-28
Reporting Safety Defects Canadian Government . . . . . . 13-16
General Motors . . . . . . . . . . . . . 13-17
U.S. Government . . . . . . . . . . . 13-16
Restraints Where to Put . . . . . . . . . . . . . . . . . 3-56
Retained Accessory Power (RAP) . . . . . . . . . . . . . . . . . 9-40 Ride Control Systems
Messages . . . . . . . . . . . . . . . . . . . . 5-47
Roads Driving, Wet . . . . . . . . . . . . . . . . . . 9-19
Roadside Assistance Program . . . . . . . . . . . . . . . 13-8, 13-10
Roof
Sunroof . . . . . . . . . . . . . . . . . 2-21, 2-22
Rotation, Tires . . . . . . . . . . . . . . . . 10-73
Routing, Engine Drive Belt . . . . . 12-6
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . 9-45
S
Safety Belts . . . . . . . . . . . . . . . . . . . 3-11Care . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28
Extender . . . . . . . . . . . . . . . . . . . . . . 3-27
How to Wear Safety BeltsProperly . . . . . . . . . . . . . . . . . . . . . 3-15
Lap Belt . . . . . . . . . . . . . . . . . . . . . . 3-26
Lap-Shoulder Belt . . . . . . . . . . . . 3-21
Reminders . . . . . . . . . . . . . . . . . . . . 5-19
Replacing After a Crash . . . . . . 3-28
Use During Pregnancy . . . . . . . . 3-26 Safety Defects Reporting
Canadian Government . . . . . . 13-16
General Motors . . . . . . . . . . . . . 13-17
U.S. Government . . . . . . . . . . . 13-16
Safety Locks . . . . . . . . . . . . . . . . . . . . 2-9
Safety System Check . . . . . . . . . . 3-27
Satellite Radio . . . . . . . . . . . . . . . . . 7-10
Scheduled Maintenance . . . . . . . 11-2
Scheduling Appointments . . . . . 13-10
Seats Adjustment, Front . . . . . . . . . . . . . . 3-3
Center Seat . . . . . . . . . . . . . . . . . . . 3-3
Head Restraints . . . . . . . . . . . . . . . 3-2
Heated Front . . . . . . . . . . . . . . . . . . 3-8
Lumbar Adjustment, Front . . . . . 3-6
Power Adjustment, Front . . . . . . 3-4
Rear . . . . . . . . . . . . . . . . . . . . 3-10, 3-11
Reclining Seatbacks . . . . . . . . . . . 3-6
Securing Child Restraints . . . . . . . . 3-66, 3-69, 3-78
Security
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-32
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 2-12

Black plate (12,1)GMC Sierra Owner Manual - 2011
i-12 INDEX
ServiceAccessories and
Modifications . . . . . . . . . . . . . . . . 10-3
Doing Your Own Work . . . . . . . . 10-4
Engine Soon Light . . . . . . . . . . . . 5-25
Maintenance Records . . . . . . .11-12
Maintenance, General Information . . . . . . . . . . . . . . . . . . 11-1
Parts Identification Label . . . . . 12-1
Publications Ordering Information . . . . . . . . . . . . . . . . 13-15
Scheduling Appointments . . . 13-10
Servicing the Airbag . . . . . . . . . . . 3-46
Shift Lock Control Function Check, Automatic
Transmission . . . . . . . . . . . . . . . . 10-40
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 9-41
Out of Park . . . . . . . . . . . . . . . . . . . 9-43 Signals, Turn and
Lane-Change . . . . . . . . . . . . . . . . . 6-6
Snow Plow . . . . . . . . . . . . . . . . . . . 9-125
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . 12-2
Speedometer . . . . . . . . . . . . . . . . . . 5-14
StabiliTrak
®Indicator Light . . . . 5-30
StabiliTrak®System . . . . . . . . . . . 9-70
Start Assist, Hills . . . . . . . . . . . . . . 9-70
Start Vehicle, Remote . . . . . . . . . . 2-5
Starter Switch Check . . . . . . . . . 10-39
Starting the Engine . . . . . . . . . . . . 9-37
Starting the Vehicle Messsages . . . . . . . . . . . . . . . . . . . 5-48
Steering . . . . . . . . . . . . . . . . . . . . . . . . 9-4 Fluid, Power . . . . . . . . . . . . . . . . 10-29
Wheel Adjustment . . . . . . . . . . . . . 5-2
Wheel Controls . . . . . . . . . . . . . . . . 5-3 Stoplamps and Back-Up Lamps
Bulb Replacement . . . . . . . . . . 10-46
Storage Areas Armrest . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Center Console . . . . . . . . . . . . . . . . 4-2
Glove Box . . . . . . . . . . . . . . . . . . . . . 4-1
Instrument Panel . . . . . . . . . . . . . . 4-1
Stuck Vehicle . . . . . . . . . . . . . . . . . . 9-23
Sun Visors . . . . . . . . . . . . . . . . . . . . . 2-20
Sunroof . . . . . . . . . . . . . . . . . . 2-21, 2-22
Switches Airbag On-Off . . . . . . . . . . . . . . . . . 3-37
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . iv
System Infotainment . . . . . . . . . . . . . . . . . . . 7-1
Noise Control . . . . . . . . . . . . . . . 10-38