2009 GMC ENVOY DENALI maintenance schedule

This schedule is for vehicles that:
carry passengers and cargo within recommended
limits on the Tire and Loading Information label.
SeeLoading the Vehicle on page 4-31.
are driven on reasonable road surfaces within legal
driving limits.
are driven off-road in the recommended manner.
SeeOff-Road Driving on page 4-13.
use the recommended fuel. SeeGasoline Octane
on page 5-5.
The services inScheduled Maintenance on page 6-4
should be performed when indicated. SeeAdditional
Required Services on page 6-6andMaintenance
Footnotes on page 6-7for further information.
{CAUTION:
Performing maintenance work on a vehicle can be
dangerous. In trying to do some jobs, you can be
seriously injured. Do your own maintenance work
only if you have the required know-how and the
proper tools and equipment for the job. If you have
any doubt, see your dealer/retailer to have a
qualied technician do the work. SeeDoing Your
Own Service Work on page 5-4.Some maintenance services can be complex.
So, unless you are technically qualied and have
the necessary equipment, have your dealer/retailer
do these jobs.
When you go to your dealer/retailer for service, trained
and supported service technicians will perform the
work using genuine parts.
To purchase service information, seeService
Publications Ordering Information on page 7-15.
Owner Checks and Services on page 6-8tells what
should be checked, when to check it, and what can easily
be done to help keep the vehicle in good condition.
The proper replacement parts, uids, and lubricants to
use are listed inRecommended Fluids and Lubricants
on page 6-12andMaintenance Replacement Parts
on page 6-14. When the vehicle is serviced, make sure
these are used. All parts should be replaced and all
necessary repairs done before you or anyone else
drives the vehicle. We recommend the use of genuine
parts from your dealer/retailer.
6-3

Scheduled Maintenance
When the change engine oil light or CHANGE ENGINE
OIL DIC message displays, service is required for the
vehicle. SeeChange Engine Oil Light on page 3-43or
DIC Warnings and Messages on page 3-51. Have the
vehicle serviced as soon as possible within the next
600 miles (1 000 km). It is possible that, if driving under
the best conditions, the engine oil life system may not
indicate that vehicle service is necessary for over a year.
However, the engine oil and lter must be changed at
least once a year and at this time the system must be
reset. Your dealer/retailer has trained service technicians
who will perform this work using genuine parts and reset
the system.
If the engine oil life system is ever reset accidentally,
service the vehicle within 3,000 miles (5 000 km)
since the last service. Remember to reset the oil life
system whenever the oil is changed. SeeEngine Oil Life
System on page 5-18for information on the Engine
Oil Life System and resetting the system.When the change engine oil light or CHANGE ENGINE
OIL DIC message appears, certain services, checks,
and inspections are required. Required services are
described in the following for “MaintenanceI” and
“MaintenanceII.” Generally, it is recommended that the
rst service be MaintenanceI, the second service be
MaintenanceII, and then alternate MaintenanceIand
MaintenanceIIthereafter. However, in some cases,
MaintenanceIImay be required more often.
MaintenanceI— Use MaintenanceIif the light or
message displays within 10 months since the vehicle
was purchased or MaintenanceIIwas performed.
MaintenanceII— Use MaintenanceIIif the previous
service performed was MaintenanceI. Always use
MaintenanceIIwhenever the light or message displays
10 months or more since the last service or if the
light or message has not come on at all for one year.
6-4

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. SeeEngine Oil on page 5-15. Reset oil life system.
SeeEngine Oil Life System on page 5-18.An Emission Control Service.••
Visually check for any leaks or damage.See footnote (j).••
Inspect engine air cleaner lter. If necessary, replace lter. SeeEngine Air
Cleaner/Filter on page 5-20.See footnote (k).•
Rotate tires and check ination pressures and wear. SeeTire Inspection and
Rotation on page 5-68and “Tire Wear Inspection” inAt Least Once a Month on
page 6-9.••
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer uid levels and add uid as
needed.••
Perform any needed additional services. See “Additional Required Services” in
this section.••
Inspect suspension and steering components.See footnote (b).•
Inspect engine cooling system.See footnote (c).•
Inspect wiper blades.See footnote (d).•
Inspect restraint system components.See footnote (e).•
Lubricate body components.See footnote (f).•
Check transmission uid level and add uid as needed.See footnote (g).•
6-5

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 6-8can be added on the following record pages. You should
retain all maintenance receipts.
Maintenance Record
DateOdometer
ReadingServiced ByMaintenanceIor
MaintenanceIIServices Performed
6-16

Online Owner Center
Online Owner Center (U.S.) —
www.gmownercenter.com/gmc
Information and services customized for your specic
vehicle — all in one convenient place.
Digital owner manual, warranty information,
and more
Online service and maintenance records
Find GMC dealers for service nationwide
Exclusive privileges and offers
Recall notices for your specic 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
Contact Us
My GM Canada (Canada) — www.gm.ca
My GM Canada is a password-protected section of
www.gm.ca where you can save information on
GM vehicles, get personalized offers, and use handy
tools and forms with greater ease.
Here are a few of the valuable tools and services you
will have access to:
My Showroom: Find and save information on
vehicles and current offers in your area.
My Dealers/Retailers: Save details such as address
and phone number for each of your preferred GM
dealers/retailers.
My Driveway: Access quick links to parts and
service estimates, check trade-in values, or
schedule a service appointment by adding the
vehicles you own to your driveway prole.
My Preferences: Manage your prole and use tools
and forms with greater ease.
To sign up, visit the My GM Canada section within
www.gm.ca.
7-5

Reporting Safety Defects to the
Canadian Government
If you live in Canada, and you believe that your
vehicle has a safety defect, notify Transport Canada
immediately, in addition to notifying General Motors of
Canada Limited. Call them at 1-800-333-0510 or write to:
Transport Canada
Road Safety Branch
2780 Sheffield Road
Ottawa, Ontario K1B 3V9
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, CA1-163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
Service Publications Ordering
Information
Service Manuals
Service Manuals have the diagnosis and repair
information on engines, transmission, axle suspension,
brakes, electrical, steering, body, etc.
Service Bulletins
Service Bulletins give additional technical service
information needed to knowledgeably service
General Motors cars and trucks. Each bulletin
contains instructions to assist in the diagnosis and
service of your vehicle.
Owner Information
Owner publications are written specically for owners
and intended to provide basic operational information
about the vehicle. The owner manual includes the
Maintenance Schedule for all models.
In-Portfolio: Includes a Portfolio, Owner Manual, and
Warranty Booklet.
RETAIL SELL PRICE: $35.00 (U.S.) plus processing fee
Without Portfolio: Owner Manual only.
RETAIL SELL PRICE: $25.00 (U.S.) plus processing fee
7-15

Lighting
Entry.........................................................3-16
Exit ...........................................................3-17
Lights............................................................3-13
Flash-to-Pass............................................... 3-8
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-14
Loading Your Vehicle.......................................4-31
Locking Rear Axle...........................................4-10
Lockout Protection..........................................2-11
Locks
Delayed Locking........................................... 2-8
Door ........................................................... 2-7
Lockout Protection.......................................2-11
Power Door .................................................. 2-8
Programmable Automatic Door Locks............... 2-9
Rear Door Security Locks.............................2-11
Loss of Control...............................................4-12
Low Fuel Warning Light...................................3-47
Lower Anchors and Tethers for Children.............1-43
Luggage Carrier..............................................2-52
Lumbar
Manual Controls............................................ 1-3
Power Controls............................................. 1-4M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-9
At Least Once a Month.................................. 6-9
At Least Once a Year..................................6-10
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-16
Maintenance Replacement Parts....................6-14
Maintenance Requirements............................. 6-2
Owner Checks and Services........................... 6-8
Recommended Fluids and Lubricants.............6-12
Scheduled Maintenance................................. 6-4
Using.......................................................... 6-2
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Lamp...............................3-38
Manual Lumbar Controls.................................... 1-3
Manual Seats................................................... 1-2
Memory Seat................................................... 1-5
Message
DIC Warnings and Messages........................3-51
Mirrors
Automatic Dimming Rearview........................2-39
Manual Rearview Mirror................................2-39
Outside Convex Mirror.................................2-42
8

Reporting Safety Defects
Canadian Government..................................7-15
General Motors...........................................7-15
United States Government............................7-14
Restraint System Check
Checking the Restraint Systems....................1-70
Replacing Restraint System Parts
After a Crash..........................................1-71
Retained Accessory Power...............................2-22
Roadside
Assistance Program....................................... 7-7
Rocking Your Vehicle to Get it Out....................4-31
Routing, Engine Drive Belt...............................6-15
Running the Vehicle While Parked.....................2-38
S
Safety Belt Reminders.....................................3-30
Safety Belts
Care of ....................................................5-106
How to Wear Safety Belts Properly................1-18
Lap-Shoulder Belt........................................1-27
Safety Belt Extender....................................1-32
Safety Belt Use During Pregnancy.................1-31
Safety Belts Are for Everyone.......................1-13
Safety Warnings and Symbols.............................. iii
Scheduled Maintenance..................................... 6-4Seats
Head Restraints..........................................1-10
Heated Seats............................................... 1-4
Manual Lumbar............................................. 1-3
Memory ....................................................... 1-5
Power Lumbar .............................................. 1-4
Power Seats................................................. 1-3
Rear Seat Operation....................................1-11
Reclining Seatbacks...................................... 1-7
Secondary Latch System.................................5-97
Securing a Child Restraint
Center Rear Seat Position............................1-51
Rear Outside Seat Position...........................1-49
Right Front Seat Position..............................1-52
Security Light.................................................3-43
Service........................................................... 5-3
Accessories and Modications......................... 5-3
Adding Equipment to the Outside of the
Vehicle..................................................... 5-5
California Perchlorate Materials Requirements..... 5-4
California Proposition 65 Warning.................... 5-4
Doing Your Own Work................................... 5-4
Engine Soon Lamp......................................3-38
Four-Wheel-Drive Warning Light.....................3-44
Publications Ordering Information...................7-15
Service, Scheduling Appointments.....................7-10
Servicing Your Airbag-Equipped Vehicle..............1-68
Setting the Clock............................................3-63
11