reset CHEVROLET TRAIL BLAZER 2004 1.G Owner's 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 3-48to 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.
5-19

Temperature – A, B, C
The temperature grades are A (the highest), B, and C,
representing the tire’s resistance to the generation
of heat and its ability to dissipate heat when tested
under controlled conditions on a specied indoor
laboratory test wheel. Sustained high temperature can
cause the material of the tire to degenerate and
reduce tire life, and excessive temperature can lead to
sudden tire failure. The grade C corresponds to a
level of performance which all passenger car tires must
meet under the Federal Motor Vehicle Safety Standard
No. 109. Grades B and A represent higher levels of
performance on the laboratory test wheel than the
minimum required by law.
Warning: The temperature grade for this tire is
established for a tire that is properly inated and not
overloaded. Excessive speed, underination, or
excessive loading, either separately or in combination,
can cause heat buildup and possible tire failure.
Wheel Alignment and Tire Balance
The wheels on your vehicle were aligned and balanced
carefully at the factory to give you the longest tire life
and best overall performance.
Scheduled wheel alignment and wheel balancing are
not needed. However, if you notice unusual tire wear or
your vehicle pulling one way or the other, the alignment
may need to be reset. If you notice your vehicle
vibrating when driving on a smooth road, your wheels
may need to be rebalanced.
Wheel Replacement
Replace any wheel that is bent, cracked or badly rusted
or corroded. If wheel nuts keep coming loose, the
wheel, wheel bolts and wheel nuts should be replaced.
If the wheel leaks air, replace it (except some
aluminum wheels, which can sometimes be repaired).
See your dealer if any of these conditions exist.
Your dealer will know the kind of wheel you need.
5-65

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 6-12andNormal Maintenance Replacement
Parts on page 6-14. 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 5-15for 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 5-15.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.An Emission Control Service. See footnote †.••
Rotate tires and check ination pressures and wear. SeeTires on page 5-52.••
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

Removing the Flat Tire and Installing the
Spare Tire..................................................5-76
Removing the Spare Tire and Tools...................5-69
Replacement Bulbs.........................................5-49
Replacing Brake System Parts..........................5-40
Reporting Safety Defects
Canadian Government..................................7-11
General Motors...........................................7-11
United States Government............................7-10
Reprogramming a Single HomeLink
®Button.......2-42
Resetting Defaults...........................................2-42
Restraint System Check
Checking Your Restraint Systems...................1-56
Replacing Restraint System Parts
After a Crash..........................................1-57
Restraint Systems
Checking....................................................1-56
Replacing Parts...........................................1-57
Retained Accessory Power (RAP)......................2-19
RFA # BATTERY LOW....................................3-60
Right Front Passenger Position, Safety Belts......1-21
RIGHT REAR DOOR AJAR..............................3-60
Roadside
Assistance Program....................................... 7-6
Rocking Your Vehicle To Get It Out...................4-42
Routing, Engine Drive Belt...............................6-15
Running Your Engine While You Are Parked.......2-32
S
Safety Belt
Reminder Light............................................3-35
Safety Belts
Care of......................................................5-86
Driver Position............................................1-14
How to Wear Safety Belts Properly................1-14
Questions and Answers About Safety Belts.....1-13
Rear Safety Belt Comfort Guides for Children
and Small Adults......................................1-24
Rear Seat Passengers.................................1-21
Right Front Passenger Position......................1-21
Safety Belt Extender....................................1-26
Safety Belt Use During Pregnancy.................1-20
Safety Belts Are for Everyone......................... 1-8
Safety Chains.................................................4-58
Safety Warnings and Symbols.............................. iii
Scanning the Terrain.......................................4-18
Scheduled Maintenance..................................... 6-4
Seats
Head Restraints............................................ 1-5
Heated Seats............................................... 1-3
Manual........................................................ 1-2
Manual Lumbar............................................. 1-3
Memory.....................................................2-50
Power Lumbar.............................................. 1-3
Power Seats................................................. 1-2
12

Seats (cont.)
Rear Seat Operation...................................... 1-6
Reclining Seatbacks...................................... 1-4
Securing a Child Restraint
Center Seat Position....................................1-44
Designed for the LATCH System...................1-40
Rear Outside Seat Position...........................1-41
Right Front Seat Position..............................1-44
Security Light.................................................3-44
Security While You Travel.................................. 7-6
Select...........................................................3-57
Service........................................................... 5-3
Adding Equipment to the Outside of
Your Vehicle.............................................. 5-4
Doing Your Own Work................................... 5-4
Engine Soon Light.......................................3-40
Four-Wheel-Drive Warning Light.....................3-46
Publications Ordering Information...................7-11
SERVICE AIR BAG.........................................3-58
SERVICE BRAKE SYSTEM.............................3-58
Service Bulletins.............................................7-12
Service Engine Soon Light in the United States
or Check Engine Light in Canada..................3-40
Service Manuals.............................................7-11
Setting Preset PTYs (RDS Only).......3-66, 3-77, 3-91
Setting Preset Stations....................3-64, 3-75, 3-88
Setting the Time.............................................3-61
Setting the Tone (Bass/Treble)..........3-64, 3-75, 3-89
Sheet Metal Damage.......................................5-89
Shifting Into Park (P).......................................2-29Shifting Out of Park (P)...................................2-31
Skidding........................................................4-14
Snow Plow....................................................4-52
Some Other Rainy Weather Tips.......................4-31
Spare Tire.....................................................5-83
Special Fabric Cleaning Problems.....................5-84
Specications, Capacities...............................5-104
Speedometer..................................................3-34
Stalling on an Incline.......................................4-25
Starting Your Engine.......................................2-20
Steering........................................................4-10
Steering in Emergencies..................................4-11
Steering Tips..................................................4-10
Steering Wheel Controls, Audio.......................3-113
Steering Wheel, Tilt Wheel................................. 3-7
Stereo RCA Jacks.........................................3-101
Storage Areas
Convenience Net.........................................2-48
Front Storage Area......................................2-44
Glove Box..................................................2-42
Luggage Carrier..........................................2-44
Overhead Console.......................................2-43
Rear Floor Storage Lid.................................2-47
Rear Storage Area.......................................2-45
Storing a Flat or Spare Tire and Tools...............5-80
Stuck in Sand, Mud, Ice or Snow......................4-42
Sun Visors.....................................................2-15
Sunglasses Storage Compartment.....................2-43
Sunroof.........................................................2-50
13