2004 CHEVROLET TAHOE maintenance reset

Average Fuel Economy
Press the fuel information button until AVG ECON
appears in the display. Average fuel economy is how
many miles per gallon your vehicle is getting based on
current and past driving conditions.
Press and hold the select button for two seconds while
AVG ECON is displayed to reset the average fuel
economy. Average fuel economy will then be calculated
starting from that point. If the average fuel economy
is not reset, it will be continually updated each time
you drive.
Instant Fuel Economy
Press the fuel information button until INST ECON
appears in the display. Instant fuel economy is how
many miles per gallon your vehicle is getting at
the particular moment in time. The instant fuel economy
cannot be reset.
GM Oil Life System
Press the fuel information button until ENGINE OIL LIFE
appears in the display. The GM Oil Life System shows
an estimate of the oil’s remaining useful life. It will show
100% when the system is reset after an oil change. It
will alert you to change your oil on a schedule consistent
with your driving conditions.
Always reset the engine oil life after an oil change. To
reset the Oil Life System use the fuel button to reach the
ENGINE OIL LIFE screen and then press and hold
the select button for ve seconds while ENGINE OIL
LIFE is displayed. OIL LIFE RESET will appear on
the display for 10 seconds to let you know the system
is reset.
The DIC does not replace the need to maintain your
vehicle as recommended in the Maintenance Schedule
in this manual. SeeEngine Oil on page 5-17.
3-60

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

Safety Belts (cont.)
Safety Belt Use During Pregnancy.................1-39
Safety Belts Are for Everyone.......................1-26
Safety Chains.................................................4-73
Safety Warnings and Symbols.............................. iii
Scanning the Terrain.......................................4-28
Scheduled Maintenance..................................... 6-4
Seats
50/50 Split Bench Seat.................................1-13
60/40 Split Bench Seat.................................1-11
Bench Seat................................................1-18
Bucket Seats, Rear......................................1-23
Head Restraints............................................ 1-9
Heated Seats............................................... 1-6
Manual........................................................ 1-3
Memory.....................................................2-67
Power Lumbar.............................................. 1-5
Power Seats................................................. 1-4
Rear Seat Operation....................................1-10
Reclining Seatbacks...................................... 1-7
Second Row..................................................1-67
Secondary Latch System.................................5-96
Securing a Child Restraint
Center Front Seat Position............................1-69
Center Rear Seat Position............................1-67
Designed for the LATCH System...................1-64
Rear Outside Seat Position...........................1-64
Right Front Seat Position..............................1-70
Security While You Travel.................................. 7-6
Select Button.................................................3-68Service........................................................... 5-3
Adding Equipment to the Outside of Your
Vehicle..................................................... 5-4
Doing Your Own Work................................... 5-3
Engine Soon Light.......................................3-50
Publications Ordering Information...................7-11
SERVICE 4 WHEEL STEER.............................3-73
SERVICE 4WD...............................................3-73
SERVICE AIRBAG..........................................3-72
SERVICE BRAKE SYSTEM.............................3-73
Service Bulletins.............................................7-11
Service Manuals.............................................7-11
SERVICE RIDE CONTROL..............................3-73
SERVICE STABILITY......................................3-73
SERVICE TIRE MONITOR...............................3-74
Setting Preset PTYs (RDS Only).....3-86, 3-98, 3-113
Setting Preset Stations..........3-79, 3-83, 3-95, 3-110
Setting the Time
Radios with Radio Data
Systems (RDS)........................................3-77
Radios without Radio Data
Systems (RDS)........................................3-77
Setting the Tone
(Bass/Treble)....................3-79, 3-84, 3-96, 3-111
Sheet Metal Damage.....................................5-106
Shifting Into Park (P).......................................2-39
Shifting Out of Park (P)...................................2-41
Side Impact Air Bags.......................................1-80
Skidding........................................................4-22
Some Other Rainy Weather Tips.......................4-42
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