2004 CHEVROLET TAHOE oil reset

How to Reset the CHANGE ENGINE OIL
Message
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 message being turned on, reset
the system.
To reset the CHANGE ENGINE OIL message, see “GM
Oil Life System” underDIC Operation and Displays
on page 3-56for vehicles equipped with the DIC, or 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.
If the OIL LIFE RESET message ashes for
10 seconds, the system is resetting.
3. Turn the key to LOCK.
If the CHANGE ENGINE OIL message comes back on
when you start your vehicle, the engine oil life system
has not reset. Repeat the procedure. If it still does
not reset, see your dealer for service.
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.
5-21

Engine Air Cleaner/Filter
SeeEngine Compartment
Overview on page 5-14for
location of engine air
cleaner/lter and change
indicator (if equipped).
When to Inspect
If your vehicle is equipped with a lter change indicator
it lets you know when the lter needs to be replaced.
Vehicles with a restriction indicator, inspect the air
cleaner/lter at every oil change and replace the lter
when the indicator tells you to. Vehicles without a
change indicator, inspect the air cleaner/lter at every
oil change and replace it at the rst oil change after
25,000 miles (40 000 km).
How to Inspect
Locate the lter change indicator. When the change
indicator turns black or is in the red/orange “change”
zone, replace the lter and reset the indicator. To inspect
the air cleaner/lter, remove the lter from the vehicle and
lightly shake lter to release loose dust and dirt. If the
lter remains “caked” with dirt, a new lter is required.
To inspect and replace the lter and reset the indicator
(if equipped), do the following:
The air cleaner/lter assembly is located on the front
corner of the engine compartment on the passenger’s
side of the vehicle.
5-22

Coolant Surge Tank Pressure Cap
SeeEngine Compartment
Overview on page 5-14for
more information on
location.
The coolant surge tank pressure cap must be fully
installed on the coolant surge tank.
Notice:If the pressure cap is not tightly installed,
coolant loss and possible engine damage may
occur. Be sure the cap is properly and tightly
secured.
Engine Overheating
You will nd a coolant temperature gage on your
vehicle’s instrument panel. SeeEngine Coolant
Temperature Gage on page 3-47. In addition, you will
nd an ENGINE OVERHEATED, and a REDUCED
ENGINE POWER message in the DIC on the instrument
panel. SeeDriver Information Center (DIC) on
page 3-56.
Overheated Engine Protection
Operating Mode (V8 Engines Only)
If an overheated engine condition exists and the
REDUCED ENGINE POWER message is displayed, an
overheat protection mode which alternates ring
groups of cylinders helps prevent engine damage. In
this mode, you will notice a loss in power and engine
performance. This operating mode allows your vehicle to
be driven to a safe place in an emergency. Driving
extended miles (km) and/or towing a trailer in the
overheat protection mode should be avoided.
Notice:After driving in the overheated engine
protection operating mode, to avoid engine damage,
allow the engine to cool before attempting any
repair. The engine oil will be severely degraded.
Repair the cause of coolant loss, change the oil and
reset the oil life system. SeeEngine Oil on page 5-17.
5-29

Owner Checks and Services on page 6-10tells 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 message 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 5-17for information on the Engine
Oil Life System and resetting the system.
When the CHANGE ENGINE OIL 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 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 message comes on within ten months
since vehicle was purchased or MaintenanceII
was performed.
MaintenanceII— Use MaintenanceIIif the previous
service performed was MaintenanceI. Always use
MaintenanceIIwhenever the message comes on ten
months or more since the last service or if the message
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 5-17.An Emission Control Service.••
Lubricate chassis components.See footnote #.••
Visually check for any leaks or damage.See footnote (j).••
Inspect engine air cleaner lter or change indicator (if equipped). If necessary,
replace lter. SeeEngine Air Cleaner/Filter on page 5-22.An Emission Control
Service. See footnote †.••
Rotate tires and check ination pressures and wear. SeeTires on page 5-61.••
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

Oil
Engine.......................................................5-17
Pressure Gage............................................3-53
OIL LIFE RESET............................................3-71
Oil Life System...............................................3-60
OIL PRESSURE LOW.....................................3-71
Older Children, Restraints................................1-48
Online Owner Center........................................ 7-3
OnStar
®Personal Calling.................................2-57
OnStar®Services............................................2-56
OnStar®Steering Wheel Controls......................2-57
OnStar®System.............................................2-56
OnStar®Virtual Advisor....................................2-57
Other Warning Devices...................................... 3-6
Outlet Adjustment...................................3-26, 3-33
Outside
Automatic Dimming Mirror.............................2-54
Camper-Type Mirrors....................................2-52
Convex Mirror.............................................2-55
Curb View Assist Mirrors..............................2-54
Heated Mirrors............................................2-55
Manual Mirrors............................................2-51
Power Foldaway Mirrors...............................2-53
Power Mirrors.............................................2-52
Outside Power Camper-Type Mirror...................2-53
Overheated Engine Protection Operating
Mode (V8 Engines Only)..............................5-29
Overseas – Customer Assistance........................ 7-5Owner Checks and Services.............................6-10
Owners, Canadian............................................... ii
Owner’s Information........................................7-12
P
Panel Doors...................................................2-15
Parental Control............................................3-123
Park (P)
Shifting Into................................................2-39
Shifting Out of............................................2-41
Parking
Brake........................................................2-38
Over Things That Burn.................................2-42
Parking on Hills..............................................4-76
Passenger Air Bag Indicator.....................2-48, 2-51
Passenger Air Bag Status Indicator...................3-42
PASSENGER DOOR AJAR..............................3-72
Passenger Sensing System..............................1-84
Passing.................................................4-20, 4-75
Passlock
®......................................................2-20
Personalization Button.....................................3-61
Plan Ahead When Possible................................ 7-7
Playing a Cassette Tape................................3-102
Playing a CD..............................3-90, 3-105, 3-117
Playing a Specic Loaded CD.........................3-118
Playing the Radio.................3-78, 3-82, 3-94, 3-109
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