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Usage Fluid/Lubricant
Front Wheel
BearingsWheel bearing lubricant
meeting requirements of
NLGI #2, Category GC or GC-LB
(GM Part No. U.S. 1051344, in
Canada 993037).
Front and
Rear AxleSAE 75W-90 Synthetic
Axle Lubricant
(GM Part No. U.S. 89021677,
in Canada 89021678) or equivalent
meeting GM Specification 9986115.
Transfer CaseDEXRON
®-VI Automatic
Transmission Fluid.
One-Piece
Propshaft Slip
Yoke Spline,
Two-Piece
Propshaft
Slip-in-Tube
SplineSpline Lubricant, Special Lubricant
(GM Part No. U.S. 12345879, in
Canada 10953511) or lubricant
meeting requirements of
GM 9985830.
Usage Fluid/Lubricant
Hood HingesMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Weatherstrip
ConditioningWeatherstrip Lubricant
(GM Part No. U.S. 3634770,
in Canada 10953518) or
Dielectric Silicone Grease
(GM Part No. U.S. 12345579,
in Canada 992887).
Weatherstrip
SqueaksSynthetic Grease
with Teflon, Superlube
(GM Part No. U.S. 12371287,
in Canada 10953437).
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Maintenance Replacement Parts
If the vehicle has the DURAMAX Diesel engine, see the DURAMAX Diesel manual for more information.
Replacement parts identified below by name, part number, or specification can be obtained by your dealer/retailer.
Part GM Part Number ACDelco Part Number
Engine Air Cleaner/Filter 15950115 A3097C
Engine Oil Filter
4.3L V6 25010792 PF47
4.8L V8, 5.3L V8, 6.0L V8 89017524 PF48
Spark Plugs
4.3L V6 12607234 41-993
4.8L V8, 5.3L V8, 6.0L V8 12609877 41-985
Wiper Blades — 22 in (56.0 cm) 25949887 —
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Engine Drive Belt Routing
If your vehicle has the DURAMAX®Diesel engine, see
the DURAMAX®Diesel manual for more information. V6 Engines
V8 Engines
6-17
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Maintenance Record
After the scheduled services are performed, record the date, odometer reading, who performed the service, and the
type of services performed in the boxes provided. SeeMaintenance Requirements on page 6-2. Any additional
information fromOwner Checks and Services on page 6-10can be added on the following record pages. You should
retain all maintenance receipts.
Maintenance Record
DateOdometer
ReadingServiced ByMaintenanceIor
MaintenanceIIServices Performed
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Maintenance Record (cont’d)
DateOdometer
ReadingServiced ByMaintenanceIor
MaintenanceIIServices Performed
6-19
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Maintenance Record (cont’d)
DateOdometer
ReadingServiced ByMaintenanceIor
MaintenanceIIServices Performed
6-20
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Customer Assistance and Information...............7-2
Customer Satisfaction Procedure......................7-2
Online Owner Center......................................7-5
Customer Assistance for
Text Telephone (TTY) Users.........................7-6
Customer Assistance Offices............................7-6
GM Mobility Reimbursement Program................7-7
Roadside Assistance Program..........................7-7
Scheduling Service Appointments....................7-10
Courtesy Transportation.................................7-10
Collision Damage Repair................................7-12Reporting Safety Defects................................7-15
Reporting Safety Defects to the
United States Government..........................7-15
Reporting Safety Defects to the
Canadian Government................................7-15
Reporting Safety Defects to General Motors.....7-16
Service Publications Ordering Information.........7-16
Vehicle Data Recording and Privacy................7-17
Event Data Recorders...................................7-18
OnStar
®......................................................7-19
Navigation System........................................7-19
Radio Frequency Identification (RFID)..............7-19
Section 7 Customer Assistance Information
7-1
Page 376 of 406

Customer Assistance and
Information
Customer Satisfaction Procedure
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 the 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 the dealership or
the general manager.STEP TWO:If after contacting a member of dealership
management, it appears your concern cannot be
resolved by the dealership without further help, in the
U.S., call the GMC Consumer Relations Manager
at 1-800-GMC-8782 (1-800-462-8782, Customer
Assistance prompt). In Canada, call General Motors of
Canada Customer Communication 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.
7-2