2012 GMC SIERRA 1500 ESP

Black plate (5,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Technical Data 12-5
Engine Specifications
EngineVIN CodeSpark Plug Gap
4.3L V6 (LU3) X1.52 mm (0.060 in)
4.8L V8 (L20) A1.02 mm (0.040 in)
5.3L V8 FlexFuel with Active Fuel Management™ (Iron
Block) (LMG) 0
1.02 mm (0.040 in)
5.3L V8 FlexFuel with Active Fuel Management™(Aluminum
Block) (LC9) 7
1.02 mm (0.040 in)
6.0L V8 FlexFuel with Active Fuel Management™(Aluminum
Block)(LZ1) J
1.02 mm (0.040 in)
6.0L V8 (Iron Block) (L96) G1.02 mm (0.040 in)
6.2L V8 FlexFuel (Aluminum Block) (L9H) 21.02 mm (0.040 in)

Black plate (1,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Customer Information 13-1
Customer
Information
Customer Information
Customer SatisfactionProcedure (U.S. and
Canada) . . . . . . . . . . . . . . . . . . . . 13-1
Customer Satisfaction Procedure (Mexico) . . . . . . . . 13-3
Customer Assistance Offices (U.S. and Canada) . . . . . . . . . 13-4
Customer Assistance Offices (Mexico) . . . . . . . . . . . . . . . . . . . . 13-5
Customer Assistance for Text Telephone (TTY) Users (U.S.
and Canada) . . . . . . . . . . . . . . . 13-6
Online Owner Center . . . . . . . . 13-6
GM Mobility Reimbursement Program (U.S. and
Canada) . . . . . . . . . . . . . . . . . . . . 13-7
Roadside Assistance Program (U.S. and Canada) . . . . . . . . . 13-7
Roadside Assistance Program (Mexico) . . . . . . . . . . . . . . . . . . . . 13-9
Scheduling Service Appointments (U.S. and
Canada) . . . . . . . . . . . . . . . . . . 13-12 Courtesy Transportation
Program (U.S. and
Canada) . . . . . . . . . . . . . . . . . . 13-13
Collision Damage Repair (U.S. and Canada) . . . . . . . . 13-14
Service Publications Ordering Information . . . . . . 13-16
Reporting Safety Defects
Reporting Safety Defects tothe United States
Government . . . . . . . . . . . . . . . 13-17
Reporting Safety Defects to the Canadian
Government . . . . . . . . . . . . . . . 13-18
Reporting Safety Defects to General Motors . . . . . . . . . . . 13-18
Vehicle Data Recording and
Privacy
Vehicle Data Recording and
Privacy . . . . . . . . . . . . . . . . . . . . 13-19
Event Data Recorders . . . . . . 13-19
OnStar
®. . . . . . . . . . . . . . . . . . . . 13-20
Navigation System . . . . . . . . . 13-20
Radio Frequency Identification (RFID) . . . . . . . 13-20
Radio Frequency Statement . . . . . . . . . . . . . . . . . 13-20
Customer Information
Customer Satisfaction
Procedure (U.S. and
Canada)
Your satisfaction and goodwill are
important to your dealer and to
GMC. Normally, any concerns
with the sales transaction or the
operation of the vehicle will be
resolved by your dealer's sales or
service departments. Sometimes,
however, despite the best intentions
of all concerned, misunderstandings
can occur. If your concern has not
been resolved to your satisfaction,
the following steps should be taken:
STEP ONE: Discuss your concern
with a member of dealership
management. Normally, concerns
can be quickly resolved at that level.
If the matter has already been
reviewed with the sales, service,
or parts manager, contact the owner
of your dealership or the general
manager.

Black plate (4,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
13-4 Customer Information
Customer Assistance
Procedure
Owner satisfaction and goodwill are
very important to your dealer and
General Motors.
Normally, any problem with the
transaction, sale, or usage of the
vehicle must be handled by your
dealer sales or service departments.
However, we recognize that
despite the good intentions of all
parties involved, sometimes a
misunderstanding may occur.
If you have a problem that has not
been satisfactorily handled through
the normal means, we suggest the
following steps:
STEP ONE
Explain your case to your dealer
service agent, service manager,
dealer sales agent, or sales
manager, depending on your case.
Make sure that they have all
necessary information. They are
interested in your continual
satisfaction.STEP TWO
If you are not satisfied, please
contact the general manager or your
dealership owner to ask for their
help. If they are not able to resolve
your case, ask them to contact the
right people at General Motors for
support, if needed.
STEP THREE
If your case is not resolved in a
reasonable amount of time by your
dealer, please call the General
Motors Customer Assistance
Center (CAC) and provide the
following information:
.Name
.Address
.Phone number
.Model year
.Brand
.Vehicle Identification
Number (VIN)
.Mileage
.Delivery date
.Description of the problem
.Dealership name
.Dealership address
See Customer Assistance Offices
(U.S. and Canada) on page 13‑4 or
Customer Assistance Offices
(Mexico) on page 13‑5.
Customer Assistance
Offices (U.S. and Canada)
GMC encourages customers to call
the toll-free number for assistance.
However, if a customer wishes to
write or e-mail GMC, the letter
should be addressed to:
United States
GMC Customer Assistance Center
P.O. Box 33172
Detroit, MI 48232-5172
www.GMC.com
1-800-GMC-8782 (1-800-462-8782)
1-800-462-8583 (For Text
Telephone Devices (TTYs))
Roadside Assistance:
1-888-881-3302

Black plate (8,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
13-8 Customer Information
Roadside Assistance is not a part of
the New Vehicle Limited Warranty.
GMC and General Motors of
Canada Limited reserve the right to
make any changes or discontinue
the Roadside Assistance program at
any time without notification.
GMC and General Motors of
Canada Limited reserve the right to
limit services or payment to an
owner or driver if they decide the
claims are made too often, or the
same type of claim is made many
times.
Services Provided
.Emergency Fuel Delivery:
Delivery of enough fuel for the
vehicle to get to the nearest
service station.
.Lock‐Out Service:Service to
unlock the vehicle if you are
locked out. A remote unlock
may be available if you have
OnStar
®. For security reasons,
the driver must present
identification before this service
is given.
.Emergency Tow From a Public
Road or Highway: Tow to the
nearest GMC dealer for warranty
service, or if the vehicle was in
a crash and cannot be driven.
Assistance is also given when
the vehicle is stuck in the sand,
mud, or snow.
.Flat Tire Change: Service to
change a flat tire with the spare
tire. The spare tire, if equipped,
must be in good condition and
properly inflated. It is the owner's
responsibility for the repair or
replacement of the tire if it is not
covered by the warranty.
.Battery Jump Start: Service to
jump start a dead battery.
.Trip Routing Service: Detailed
maps of North America when
requested either with the
most direct route or the most
scenic route. Additional travel
information is also available.
Allow three weeks for delivery.
.Trip Interruption Benefits and
Assistance: If your trip is
interrupted due to a warranty
failure, incidental expenses
may be reimbursed during the
5 years/(160 000 km) 100,000 mi
Powertrain warranty period.
Items considered are hotel,
meals, and rental car.
Services Not Included in
Roadside Assistance
.Impound towing caused by
violation of any laws.
.Legal fines.
.Mounting, dismounting,
or changing of snow tires,
chains, or other traction devices.
.Towing or services for vehicles
driven on a non-public road or
highway.

Black plate (9,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Customer Information 13-9
Services Specific to
Canadian‐Purchased Vehicles
.Fuel Delivery:Reimbursement
is approximately $5 Canadian.
Diesel fuel delivery may be
restricted. Propane and other
fuels are not provided through
this service.
.Lock-Out Service: Vehicle
registration is required.
.Trip Routing Service: Limit of
six requests per year.
.Trip Interruption Benefits
and Assistance: Must be over
250 kilometres from where
your trip was started to
qualify. General Motors of
Canada Limited requires
pre-authorization, original
detailed receipts, and a copy
of the repair orders. Once
authorization has been received,
the Roadside Assistance advisor
will help to make arrangements
and explain how to receive
payment.
.Alternative Service: If
assistance cannot be provided
right away, the Roadside
Assistance advisor may
give permission to get local
emergency road service. You will
receive payment, up to $100,
after sending the original
receipt to Roadside Assistance.
Mechanical failures may be
covered, however any cost for
parts and labor for repairs not
covered by the warranty are the
owner responsibility.
Roadside Assistance
Program (Mexico)
As a new owner, your vehicle is
automatically enrolled in the
Roadside Assistance program. The
services are available at no cost
under the terms and conditions
of the program. The Roadside
Assistance program is not part
of, or included, in the coverage
provided by the new vehicle limited
warranty. Roadside Assistance provides
assistance to the driver and
passengers while driving the
vehicle within your city of residence
or on any passable road in Mexico,
the United States, and Canada.
Services are subject to the
limitations described in the following
pages. Program coverage varies by
country.
Roadside Assistance is available
24 hours a day, 365 days of
the year.
This program expires two years
from the date of the invoice for
the vehicle, regardless of vehicle
mileage and changes in vehicle
ownership.
For more information about the
renewal of this program at the
end of its term, contact the GMC
Customer Assistance Center at
01-800-466-0801.

Black plate (10,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
13-10 Customer Information
Services Provided
.Flat Tire Change: If unable to
change a flat tire, Roadside
Assistance will provide towing
service to the nearest authorized
GMC dealership. It is the
owner's responsibility for the
repair or replacement of the tire.
This service is limited to the
transfer of the vehicle to the
repair facility.
.Emergency Fuel Delivery:
Delivery of enough fuel for the
vehicle to get to the nearest
service station.
.Lock-Out Service: Service to
unlock the vehicle if you are
locked out.
.Battery Jump Start: Service to
jump start a dead battery.
.*Emergency Messages:
Transmission of urgent phone
messages.
.*Emergency Calls: Call for
emergency services.
.*Dealership Location
Assistance: Information
regarding addresses and
telephone numbers for GMC
dealers.
.Emergency Towing: Tow to
the nearest dealer for warranty
service if the vehicle cannot be
driven.
If the vehicle is involved in an
accident during the commission
of a crime, administrative
violation, or breach of traffic
regulations, Roadside
Assistance will not provide
service. When the vehicle is
not accessible to be towed, all
maneuvers required to access it
will be at the owner's expense.
If the vehicle is in another city
outside of your residence,
Roadside Assistance is limited
to moving the vehicle to the
nearest dealer. If you would like
the vehicle moved to a different
dealer, you will be asked to
cover the difference in cost at
the time of the move.If the vehicle cannot be received
by the nearest GMC dealer due
to scheduling conflicts, the
vehicle will be taken to a safe
place where it will remain for up
to 48 hours until it can be taken
to the dealer. If the storage costs
exceed the amount authorized,
the owner is responsible to pay
the difference at the time of
service. Contact Roadside
Assistance for more information
on authorized amounts.
.*Trip Interruption: This service
is provided if you are prevented
from further usage of your
vehicle while traveling and it is
not possible for the nearest
GMC dealership to repair the
vehicle the same day, requiring
the vehicle to stay at the
dealership for a night or more.
If this happens, in addition to the
previously listed services and
prior to confirmation by the
dealership, you are entitled to
choose one of the following
alternatives, within the limits of

Black plate (14,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
13-14 Customer Information
Requirements vary and may
include minimum age requirements,
insurance coverage, credit card,
etc. You are responsible for fuel
usage charges and may also be
responsible for taxes, levies, usage
fees, excessive mileage, or rental
usage beyond the completion of the
repair.
It may not be possible to provide a
like vehicle as a courtesy rental.
Additional Program
Information
All program options, such as shuttle
service, may not be available at
every dealer. Please contact your
dealer for specific information
about availability. All Courtesy
Transportation arrangements will be
administered by appropriate dealer
personnel.
General Motors reserves the right
to unilaterally modify, change,
or discontinue Courtesy
Transportation at any time and to
resolve all questions of claimeligibility pursuant to the terms and
conditions described herein at its
sole discretion.
Collision Damage Repair
(U.S. and Canada)
If the vehicle is involved in a
collision and it is damaged, have
the damage repaired by a qualified
technician using the proper
equipment and quality replacement
parts. Poorly performed collision
repairs diminish the vehicle resale
value, and safety performance can
be compromised in subsequent
collisions.
Collision Parts
Genuine GM Collision parts are new
parts made with the same materials
and construction methods as the
parts with which the vehicle was
originally built. Genuine GM
Collision parts are the best choice to
ensure that the vehicle's designed
appearance, durability, and safety
are preserved. The use of Genuine
GM parts can help maintain the GM
New Vehicle Limited Warranty.
Recycled original equipment parts
may also be used for repair. These
parts are typically removed from
vehicles that were total losses in
prior crashes. In most cases, the
parts being recycled are from
undamaged sections of the vehicle.
A recycled original equipment GM
part may be an acceptable choice
to maintain the vehicle's originally
designed appearance and safety
performance; however, the history of
these parts is not known. Such parts
are not covered by the GM New
Vehicle Limited Warranty, and any
related failures are not covered by
that warranty.
Aftermarket collision parts are also
available. These are made by
companies other than GM and may
not have been tested for the vehicle.
As a result, these parts may fit
poorly, exhibit premature durability/
corrosion problems, and may not
perform properly in subsequent

Black plate (20,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
13-20 Customer Information
GM will not access this data or
share it with others except: with the
consent of the vehicle owner or,
if the vehicle is leased, with the
consent of the lessee; in response
to an official request by police or
similar government office; as part of
GM's defense of litigation through
the discovery process; or, as
required by law. Data that GM
collects or receives may also be
used for GM research needs or may
be made available to others for
research purposes, where a need is
shown and the data is not tied to a
specific vehicle or vehicle owner.
OnStar®
If the vehicle is equipped with an
active OnStar system, that system
may also record data in crash or
near crash-like situations. The
OnStar Terms and Conditions
provides information on data
collection and use and is available
at www.onstar.com (U.S.) orwww.onstar.ca (Canada), or by
pressing the
Qbutton and
speaking to an advisor. See OnStar
Overview on page 14‑1.
Navigation System
If the vehicle has a navigation
system, use of the system may
result in the storage of destinations,
addresses, telephone numbers, and
other trip information. Refer to the
navigation manual for information
on stored data and for deletion
instructions.
Radio Frequency
Identification (RFID)
RFID technology is used in some
vehicles for functions such as tire
pressure monitoring and ignition
system security, as well as in
connection with conveniences
such as key fobs for remote door
locking/unlocking and starting, and
in-vehicle transmitters for garage
door openers. RFID technology in GM vehicles does not use or record
personal information or link with
any other GM system containing
personal information.
Radio Frequency
Statement
This vehicle has systems that
operate on a radio frequency that
comply with Part 15 of the Federal
Communications Commission (FCC)
rules and with Industry Canada
Standards RSS‐GEN/210/220/310.
Operation is subject to the following
two conditions:
1. The device may not cause
harmful interference.
2. The device must accept any interference received, including
interference that may cause
undesired operation of the
device.
Changes or modifications to any of
these systems by other than an
authorized service facility could void
authorization to use this equipment.