GMC SIERRA 1500 2012 Owners Manual

Black plate (3,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Technical Data 12-3
ApplicationCapacities
Metric English
Engine Oil with Filter
4.3L V6 4.3 L 4.5 qt
4.8L V8; 5.3L V8; 6.0L V8; 6.2L V8 5.7 L 6.0 qt
Fuel Tank
1500 Series Standard and Short Box 98.4 L 26.0 gal
1500 Series Long Box 128.7 L 34.0 gal
2500 Series and 3500 Series Standard Box 136.3 L 36.0 gal
2500 Series and 3500 Series Long Box 136.3 L 36.0 gal
3500 Series Chassis Cab 240.4 L 63.5 gal
3500 Chassis Cab –Front Tank 89.0 L 23.5 gal
3500 Chassis Cab –Rear Tank (if equipped) 151.4 L 40.0 gal
Transfer Case Fluid 1.5 L 1.6 qt

Black plate (4,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
12-4 Technical Data
ApplicationCapacities
Metric English
Transmission Fluid - Automatic (Pan Removal and Filter Replacement)
4-Speed Transmission 4L60-E Electronic Transmission 4.7 L 5.0 qt
6-Speed Transmission 6L80-E 5.7 L 6.0 qt
6-Speed Transmission 6L90-E 6.0 L 6.3 qt
6-Speed Transmission Allison 7.0 L 7.4 qt
Transmission Fluid - Manual (Drain and Refill) 1500 Series 4.4 L 4.6 qt
3500 Series 3.5 L 3.7 qt
Wheel Nut Torque 190 Y140 ft lb
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this
manual. Recheck fluid level after filling.

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 (6,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
12-6 Technical Data
Engine Drive Belt Routing
V6 Engines
V8 Engines
If the vehicle has a diesel engine,
see the Duramax diesel supplement
for more information. If the vehicle is a hybrid, see the
hybrid supplement for more
information.

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 (2,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
13-2 Customer Information
STEP TWO:If after contacting a
member of dealership management,
it appears your concern cannot be
resolved by your dealership without
further help, in the U.S., call
1-800-462-8782. In Canada,
call General Motors of Canada
Customer Care Centre at
1-800-263-3777 (English) or
1-800-263-7854 (French).
We encourage you to call the
toll-free number in order to give your
inquiry prompt attention. Have the
following information available to
give the Customer Assistance
representative:
.Vehicle Identification
Number (VIN). This is available
from the vehicle registration or
title, or the plate at the top left of
the instrument panel and visible
through the windshield.
.Dealership name and location.
.Vehicle delivery date and
present mileage. When contacting GMC, remember
that your concern will likely be
resolved at a dealer's facility. That is
why we suggest following Step One
first.
STEP THREE
—U.S. Owners:
Both General Motors and your
dealer are committed to making
sure you are completely satisfied
with the new vehicle. However,
if you continue to remain unsatisfied
after following the procedure
outlined in Steps One and Two, you
can file with the Better Business
Bureau (BBB) Auto Line
®Program
to enforce your rights.
The BBB Auto Line Program is an
out-of-court program administered
by the Council of Better Business
Bureaus to settle automotive
disputes regarding vehicle repairs or
the interpretation of the New Vehicle
Limited Warranty. Although you may
be required to resort to this informal
dispute resolution program prior to
filling out a court action, use of the
program is free of charge and your
case will generally be heard within 40 days. If you do not agree with the
decision given in your case, you
may reject it and proceed with any
other venue for relief available
to you.
You may contact the BBB Auto
Line Program using the toll-free
telephone number or write them at
the following address:
BBB Auto Line Program
Council of Better Business
Bureaus, Inc.
4200 Wilson Boulevard
Suite 800
Arlington, VA 22203-1838
Telephone: 1-800-955-5100
www.dr.bbb.org/goauto
This program is available in all
50 states and the District of
Columbia. Eligibility is limited by
vehicle age, mileage, and other
factors. General Motors reserves
the right to change eligibility
limitations and/or discontinue its
participation in this program.

Black plate (3,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Customer Information 13-3
STEP THREE—Canadian
Owners: In the event that you do
not feel your concerns have been
addressed after following the
procedure outlined in Steps One
and Two, General Motors of Canada
Limited wants you to be aware
of its participation in a no-charge
Mediation/Arbitration Program.
General Motors of Canada Limited
has committed to binding arbitration
of owner disputes involving
factory-related vehicle service
claims. The program provides for
the review of the facts involved by
an impartial third party arbiter, and
may include an informal hearing
before the arbiter. The program is
designed so that the entire dispute
settlement process, from the time
you file your complaint to the final
decision, should be completed in
approximately 70 days. We believe
our impartial program offers
advantages over courts in most
jurisdictions because it is informal,
quick, and free of charge. For further information concerning
eligibility in the Canadian Motor
Vehicle Arbitration Plan (CAMVAP),
call toll-free 1-800-207-0685, or call
the General Motors Customer Care
Centre, 1-800-263-3777 (English),
1-800-263-7854 (French),
or write to:
Mediation/Arbitration Program
c/o Customer Care Centre
General Motors of Canada Limited
Mail Code: CA1-163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
The inquiry should be accompanied
by the Vehicle Identification
Number (VIN).Customer Satisfaction
Procedure (Mexico)
Did you get the Warranty Extension
Plan? This plan is recommended by
General Motors to supplement the
warranty included with the new
vehicle purchase.
See your dealer for details.

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 (5,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Customer Information 13-5
From Puerto Rico:
1-800-496-9992 (English)
1-800-496-9993 (Spanish)
From U.S. Virgin Islands:
1-800-496-9994
Canada
General Motors of Canada Limited
Customer Care Centre,
Mail Code: CA1-163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
www.gmc.ca
1-800-263-3777 (English)
1-800-263-7854 (French)
1-800-263-3830 (For Text
Telephone Devices (TTYs))
Roadside Assistance:
1-800-268-6800
All Overseas Locations
Please contact the local General
Motors Business Unit.
Mexico, Central America and
Caribbean Islands/Countries
(Except Puerto Rico and U.S.
Virgin Islands)
General Motors de Mexico, S. de
R.L. de C.V.
Customer Assistance Center
Av. Ejercito Nacional #843
Col. Granada
C.P. 11520, Mexico, D.F.
01-800-466-0801
Long Distance: 011-52-53 29 0801
Customer Assistance
Offices (Mexico)
To contact the Customer Assistance
Center (CAC), use the phone
numbers listed in this section.
Customer assistance is available
Monday through Friday, 08:00 to
20:00 hours, and Saturdays from
08:00 to 15:00 hours.
All e-mail inquiries to the Customer
Assistance Center (CAC) should be
sent to: [email protected].
Mexico
From Mexico City
5329-0812
From Other Mexico Locations
01-800-466-0812
United States and Canada
1-866-466-8191
Costa Rica
00-800-052-1005
Guatemala
1-800-999-5252
Panama
00-800-052-0001
Dominican Republic
1-888-751-5301
El Salvador
800-6273
Honduras
800-0122-6101

Black plate (6,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
13-6 Customer Information
Customer Assistance for
Text Telephone (TTY)
Users (U.S. and Canada)
To assist customers who are
deaf, hard of hearing, or speech
impaired and who use Text
Telephones (TTYs), GMC has
TTY equipment available at its
Customer Assistance Center. Any
TTY user can communicate with
GMC by dialing: 1-800-462-8583.
TTY users in Canada can dial
1-800-263-3830.
Online Owner Center
Manage your vehicle (U.S.) at
gmc.com. Click on“Owners,”
then “Manage My GMC/Owners
Login.”
Information and services
customized for your specific
vehicle —all in one convenient
place.
.Digital owner manual, warranty
information, and more.
.Storage for online service and
maintenance records.
.GMC dealer locator for service
nationwide.
.Exclusive privileges and offers.
.Recall notices for your specific
vehicle.
.OnStar and GM Cardmember
Services Earnings summaries. Other Helpful Links
GMC
—www.gmc.com
GMC Merchandise —
www.gmccollection.com
Help Center —
www.gmc.com/helpcenter
.FAQ (Frequently Asked
Questions)
.Contact Us
GMC Owner Centre (Canada)
gmcowner.ca
Take a trip to the GMC Owner
Centre:
.Chat live with online help
representatives.
.Use the Vehicle Tools section.
.Access third party enthusiast
sites and social media networks.
.Locate owner resources such
as lease-end, financing, and
warranty information.