Page 484 of 524

Parking Brake and Automatic
Transmission P (Park) Mechanism
Check
{CAUTION:
When you are doing this check, the vehicle could
begin to move. You or others could be injured and
property could be damaged. Make sure there is
room in front of the vehicle in case it begins to roll.
Be ready to apply the regular brake at once
should the vehicle begin to move.Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake,
set the parking brake.
To check the parking brake’s holding ability:
With the engine running and the transmission
in N (Neutral), slowly remove foot pressure from
the regular brake pedal. Do this until the vehicle is
held by the parking brake only.
To check the P (Park) mechanism’s holding ability:
With the engine running, shift to P (Park). Then
release the parking brake followed by the regular
brake.
Contact your dealer/retailer if service is required.
Underbody Flushing Service
At least every spring, use plain water to ush any
corrosive materials from the underbody. Take care to
clean thoroughly any areas where mud and other debris
can collect.
6-12
Page 489 of 524
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 6-9can be added on the following record pages. You should
retain all maintenance receipts.
Maintenance Record
DateOdometer
ReadingServiced ByMaintenanceIor
MaintenanceIIServices Performed
6-17
Page 490 of 524
Maintenance Record (cont’d)
DateOdometer
ReadingServiced ByMaintenanceIor
MaintenanceIIServices Performed
6-18
Page 491 of 524
Maintenance Record (cont’d)
DateOdometer
ReadingServiced ByMaintenanceIor
MaintenanceIIServices Performed
6-19
Page 492 of 524
Maintenance Record (cont’d)
DateOdometer
ReadingServiced ByMaintenanceIor
MaintenanceIIServices Performed
6-20
Page 493 of 524

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 Service...........................................7-7
Scheduling Service Appointments....................7-10
Courtesy Transportation.................................7-10
Collision Damage Repair................................7-11Reporting Safety Defects................................7-14
Reporting Safety Defects to the
United States Government..........................7-14
Reporting Safety Defects to the
Canadian Government................................7-15
Reporting Safety Defects to General Motors.....7-15
Service Publications Ordering Information.........7-15
Vehicle Data Recording and Privacy................7-16
Event Data Recorders...................................7-17
OnStar
®......................................................7-18
Navigation System........................................7-18
Radio Frequency Identi cation (RFID)..............7-18
Section 7 Customer Assistance Information
7-1
Page 494 of 524

Customer Assistance and
Information
Customer Satisfaction Procedure
Your satisfaction and goodwill are important to
your dealer and to HUMMER. 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, call
the HUMMER Consumer Relations Manager at
1-866-HUMMER6 (486-6376), Customer Assistance
prompt. In Canada, call GM of Canada Customer
Communication 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 Identi cation 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 HUMMER, please remember that your
concern will likely be resolved at a dealer’s facility. That is
why we suggest you follow Step One rst if you have a
concern.
7-2
Page 496 of 524

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 le your complaint to the nal 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 Communication Centre, 1-800-263-3777
(English), 1-800-263-7854 (French), or write to:
Mediation/Arbitration Program c/o Customer
Communication Centre
General Motors of Canada Limited
Mail Code: CA1-163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
Your inquiry should be accompanied by the Vehicle
Identi cation Number (VIN).
7-4