service reset GMC ENVOY XL 2004 User Guide

How to Reset the CHANGE ENGINE OIL
Light
The GM Oil Life System calculates when to change your
engine oil and lter based on vehicle use. Anytime your
oil is changed, reset the system so it can calculate when
the next oil change is required. If a situation occurs where
you change your oil prior to a CHANGE ENGINE OIL
light being turned on, reset the system.
To reset the CHANGE ENGINE OIL light, do the
following:
1. Turn the ignition key to RUN with the engine off.
2. Fully press and release the accelerator pedal
slowly three times within ve seconds.
3. Turn the key to LOCK.
If the CHANGE ENGINE OIL light comes back on when
you start your vehicle, the engine oil life system has
not reset. Repeat the procedure.
For vehicles with the Driver Information Center, see
Driver Information Center (DIC) on page 3-51to reset
the system.
What to Do with Used Oil
Used engine oil contains certain elements that may be
unhealthy for your skin and could even cause cancer.
Do not let used oil stay on your skin for very long. Clean
your skin and nails with soap and water, or a good
hand cleaner. Wash or properly dispose of clothing or
rags containing used engine oil. See the manufacturer’s
warnings about the use and disposal of oil products.
Used oil can be a threat to the environment. If you
change your own oil, be sure to drain all the oil from
the lter before disposal. Never dispose of oil by putting
it in the trash, pouring it on the ground, into sewers,
or into streams or bodies of water. Instead, recycle it by
taking it to a place that collects used oil. If you have
a problem properly disposing of your used oil, ask your
dealer, a service station or a local recycling center
for help.
5-20

If you want to get service information, seeService
Publications Ordering Information on page 7-12.
Owner Checks and Services on page 6-9tells you what
should be checked, when to check it and what you can
easily do to help keep your vehicle in good condition.
The proper replacement parts, uids and lubricants to
use are listed inRecommended Fluids and Lubricants
on page 6-13andNormal Maintenance Replacement
Parts on page 6-15. When your 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 GM parts.
Scheduled Maintenance
When the CHANGE ENGINE OIL light comes on, it
means that service is required for your vehicle. Have your
vehicle serviced as soon as possible within the next
600 miles (1 000 km). It is possible that, if you are driving
under the best conditions, the engine oil life system may
not indicate that vehicle service is necessary for over a
year. However, your engine oil and lter must be changed
at least once a year and at this time the system must be
reset. Your GM Goodwrench dealer has GM-trained
service technicians who will perform this work using
genuine GM parts and reset the system.If the engine oil life system is ever reset accidentally,
you must service your vehicle within 3,000 miles
(5 000 km) since your last service. Remember to reset
the oil life system whenever the oil is changed. See
Engine Oil on page 5-16for information on the Engine
Oil Life System and resetting the system.
When the CHANGE ENGINE OIL light appears, certain
services, checks and inspections are required.
Required services are described in the following for
“MaintenanceI” and “MaintenanceII.” Generally,
it is recommended that your rst service be
MaintenanceI, your second service be MaintenanceII
and that you alternate MaintenanceIand MaintenanceII
thereafter. However, in some cases, MaintenanceII
may be required more often.
MaintenanceI— Use MaintenanceIif the CHANGE
ENGINE OIL light comes on within ten months since
vehicle was purchased or MaintenanceIIwas
performed.
MaintenanceII— Use MaintenanceIIif the previous
service performed was MaintenanceI. Always use
MaintenanceIIwhenever the light comes on ten months
or more since the last service or if the light has not
come on at all for one year.
6-4

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. Reset oil life system. SeeEngine Oil
on page 5-16.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 5-21.An Emission Control Service. See footnote †.••
Rotate tires and check ination pressures and wear. SeeTires on page 5-55.••
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.•
6-5

Securing a Child Restraint
Center Seat Position....................................1-45
Designed for the LATCH System...................1-42
Rear Outside Seat Position...........................1-43
Right Front Seat Position..............................1-46
Security Light.................................................3-47
Security While You Travel.................................. 7-7
Select...........................................................3-60
Service........................................................... 5-3
Adding Equipment to the Outside
of Your Vehicle.......................................... 5-4
Doing Your Own Work................................... 5-3
Engine Soon Light.......................................3-43
Four-Wheel-Drive Warning Light.....................3-48
Publications Ordering Information...................7-12
SERVICE AIR BAG.........................................3-61
SERVICE BRAKE SYSTEM.............................3-61
Service Bulletins.............................................7-13
Service Engine Soon Light in the United States
or Check Engine Light in Canada.....................3-43
Service Manuals.............................................7-12
Setting Preset PTYs (RDS Only).......3-70, 3-82, 3-96
Setting Preset Stations....................3-67, 3-79, 3-94
Setting the Time.............................................3-64
Setting the Tone (Bass/Treble)..........3-68, 3-79, 3-94
Sheet Metal Damage.......................................5-93
Shifting Into Park (P).......................................2-31
Shifting Out of Park (P)...................................2-33Skidding........................................................4-15
Snow Plow....................................................4-55
Some Other Rainy Weather Tips.......................4-33
Spare Tire.....................................................5-87
Special Fabric Cleaning Problems.....................5-89
Specications, Capacities...............................5-109
Speedometer..................................................3-37
Stalling on an Incline.......................................4-27
Starting Your Engine.......................................2-21
Steering........................................................4-11
Steering in Emergencies..................................4-12
Steering Tips..................................................4-11
Steering Wheel Controls, Audio.......................3-119
Steering Wheel, Tilt Wheel................................. 3-7
Stereo RCA Jacks.........................................3-108
Storage Areas
Convenience Net.........................................2-51
Front Storage Area......................................2-47
Glove Box..................................................2-46
Luggage Carrier..........................................2-48
Overhead Console.......................................2-46
Rear Floor Storage Lid.................................2-51
Rear Storage Area.......................................2-49
Storing a Flat or Spare Tire and Tools...............5-85
Stuck in Sand, Mud, Ice or Snow......................4-44
Sun Visors.....................................................2-17
Sunglasses Storage Compartment.....................2-47
Sunroof.........................................................2-53
13