2005 CHEVROLET TRAIL BLAZER oil change

Maintenance Schedule
Introduction
Important: Keep engine oil at the proper level and
change as recommended.
Have you purchased the GM Protection Plan? The Plan
supplements your new vehicle warranties. See your
Warranty and Owner Assistance booklet or your dealer
for details.
Maintenance Requirements
Notice:Maintenance intervals, checks, inspections,
replacement parts, and recommended uids and
lubricants as prescribed in this manual are
necessary to keep your vehicle in good working
condition. Any damage caused by failure to follow
scheduled maintenance may not be covered by
warranty.
Your Vehicle and the Environment
Proper vehicle maintenance not only helps to keep your
vehicle in good working condition, but also helps the
environment. All recommended maintenance is
important. Improper vehicle maintenance can even
affect the quality of the air we breathe. Improper uid
levels or the wrong tire ination can increase the level of
emissions from your vehicle. To help protect our
environment, and to keep your vehicle in good condition,
be sure to maintain your vehicle properly.
Using the Maintenance Schedule
We at General Motors want to help you keep your
vehicle in good working condition. But we do not know
exactly how you will drive it. You may drive very
short distances only a few times a week. Or you may
drive long distances all the time in very hot, dusty
weather. You may use your vehicle in making deliveries.
Or you may drive it to work, to do errands or in many
other ways.
Because of all the different ways people use their
vehicles, maintenance needs vary. You may need more
frequent checks and replacements. So please read
the following and note how you drive. If you have any
questions on how to keep your vehicle in good condition,
see your GM Goodwrench
®dealer.
6-2

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 Life System on page 5-18for 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 MaintenanceIIthereafter.
However, in some cases, MaintenanceIImay be
required more often.
MaintenanceI— Use MaintenanceIif the change
engine oil light comes on 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 comes on 10 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. 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 5-19.See footnote (k).•
Rotate tires and check ination pressures and wear. SeeTire Inspection
and Rotation on page 5-57and “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.•
6-5

(e)Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors, and anchorages
are working properly. Look for any other loose or
damaged safety belt system parts. If you see anything
that might keep a safety belt system from doing its
job, have it repaired. Have any torn or frayed safety belts
replaced. Also look for any opened or broken airbag
coverings, and have them repaired or replaced.
The airbag system does not need regular maintenance.
(f)Lubricate all key lock cylinders, hood latch
assembly, secondary latch, pivots, spring anchor,
release pawl, rear compartment hinges, outer liftgate
handle pivot points, rear door detent link, roller
mechanism, liftgate handle pivot points, latch bolt, fuel
door hinge, cargo door hinge, locks, and folding
seat hardware. More frequent lubrication may be
required when exposed to a corrosive environment.
Applying silicone grease on weatherstrips with a clean
cloth will make them last longer, seal better and not stick
or squeak.
(g)Check vent hose at transfer case for kinks and
proper installation.(h)Change automatic transmission uid and lter if the
vehicle is mainly driven under one or more of these
conditions:
In heavy city traffic where the outside temperature
regularly reaches 90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police, or delivery
service.
(i)Drain, ush, and rell cooling system. This service
can be complex; you should have your dealer perform
this service. See Engine Coolant on page 5-23 for
what to use. Inspect hoses. Clean radiator, condenser,
pressure cap, and ller neck. Pressure test the
cooling system and pressure cap.
(j)A uid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired and
the uid level checked. Add uid if needed.
(k)If you drive regularly under dusty conditions, inspect
the lter at each engine oil change.
(l)Visually inspect belt for fraying, excessive cracks, or
obvious damage. Replace belt if necessary.
6-8

Engine
Air Cleaner/Filter.........................................5-19
Battery.......................................................5-39
Change Engine Oil Light...............................3-45
Check and Service Engine Soon Light............3-41
Coolant......................................................5-23
Coolant Heater............................................2-22
Coolant Temperature Gage...........................3-40
Engine Compartment Overview......................5-12
Exhaust.....................................................2-35
Fan Noise..................................................5-33
Oil .............................................................5-15
Oil Life System...........................................5-18
Overheating................................................5-26
Reduced Power Light...................................3-46
Starting......................................................2-20
Entry Lighting.................................................3-18
Event Data Recorders (EDR)............................7-10
Exit Lighting...................................................3-18
Extender, Safety Belt.......................................1-29
F
Filter
Engine Air Cleaner......................................5-19
Finish Damage...............................................5-87
Fixed Mast Antenna.......................................3-133
Flash-to-Pass................................................... 3-8Flat Tire........................................................5-65
Flat Tire, Changing.........................................5-66
Flat Tire, Storing.............................................5-77
Fluid
Automatic Transmission................................5-21
Power Steering...........................................5-34
Windshield Washer......................................5-35
Fog Lamps....................................................3-17
Four-Wheel Drive....................................2-27, 5-45
Front Axle......................................................5-45
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Check Gas Cap Light...................................3-48
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-8
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-48
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Low Warning Light.......................................3-48
Fuses
Engine Compartment Fuse Block...................5-91
Fuses and Circuit Breakers...........................5-91
Rear Underseat Fuse Block..........................5-97
Windshield Wiper.........................................5-90
5

G
Gage
Check Gages Warning Light..........................3-47
Engine Coolant Temperature.........................3-40
Fuel..........................................................3-48
Oil Pressure...............................................3-44
Speedometer..............................................3-33
Tachometer.................................................3-33
Voltmeter Gage...........................................3-38
Garage Door Opener.......................................2-49
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
Gate Ajar Light...............................................3-47
Glove Box.....................................................2-53
GM Mobility Reimbursement Program.................. 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-7
Headlamps....................................................3-14
Automatic Headlamp System.........................3-16
Bulb Replacement.......................................5-46
Daytime Running Lamps...............................3-15
Electrical System.........................................5-90
Flash-to-Pass............................................... 3-8
Halogen Bulbs............................................5-46
High/Low Beam Changer................................ 3-8Headlamps (cont.)
On Reminder..............................................3-15
Washer......................................................3-11
Heated Seats................................................... 1-4
Heater...........................................................3-20
Heater...........................................................3-23
Highbeam On Light.........................................3-46
Highway Hypnosis...........................................4-35
Hill and Mountain Roads..................................4-35
HomeLink
®Wireless Control System.................2-49
HomeLink®Wireless Control System Operation....2-50
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn............................................................... 3-6
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-16
I
Ignition Positions.............................................2-19
Infants and Young Children, Restraints...............1-33
Ination -- Tire Pressure..................................5-56
Instrument Panel
Overview..................................................... 3-4
Instrument Panel (I/P)
Brightness..................................................3-17
Cluster.......................................................3-32
6

J
Jump Starting.................................................5-40
K
Keyless Entry System....................................... 2-5
Keys............................................................... 2-3
L
Labelling, Tire Sidewall....................................5-51
Lamps
Battery Run-Down Protection.........................3-19
Dome........................................................3-17
Dome Lamp Override...................................3-18
Fog ...........................................................3-17
Reading.....................................................3-18
LATCH System
Child Restraints...........................................1-42
Securing a Child Restraint Designed for the
LATCH System........................................1-45
Liftgate/Liftglass..............................................2-13
Liftglass/Liftgate..............................................2-13
Light
Airbag Readiness........................................3-35
Anti-Lock Brake System Warning...................3-40
Brake System Warning.................................3-38
Change Engine Oil......................................3-45Light (cont.)
Charging System.........................................3-37
Check Gages Warning.................................3-47
Check Gas Cap..........................................3-48
Cruise Control.............................................3-46
Gate Ajar...................................................3-47
Highbeam On.............................................3-46
Low Fuel Warning.......................................3-48
Malfunction Indicator....................................3-41
Passenger Airbag Status Indicator..................3-36
Passenger Safety Belt Reminder....................3-34
Reduced Engine Power................................3-46
Safety Belt Reminder...................................3-34
Security.....................................................3-45
Service Four-Wheel-Drive Warning Light.........3-47
Lighting
Entry.........................................................3-18
Exit...........................................................3-18
Loading Your Vehicle.......................................4-43
Locking Rear Axle............................................ 4-9
Lockout Protection..........................................2-12
Locks
Delayed Locking........................................... 2-9
Door........................................................... 2-8
Lockout Protection.......................................2-12
Power Door.................................................. 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-12
Loss of Control...............................................4-14
7

O
Odometer......................................................3-33
Odometer, Trip...............................................3-33
Off-Road Recovery..........................................4-12
Oil
Change Engine Oil Light...............................3-45
Engine.......................................................5-15
Pressure Gage............................................3-44
Oil, Engine Oil Life System..............................5-18
Older Children, Restraints................................1-30
Online Owner Center........................................ 7-3
OnStar
®System, see OnStar®Manual...............2-47
Operating Your All-Wheel-Drive Vehicle Off
Paved Roads..............................................4-15
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-27
Outside
Convex Mirror.............................................2-47
Curb View Assist Mirror................................2-46
Heated Mirrors............................................2-47
Manual Mirrors............................................2-46
Power Mirrors.............................................2-46
Overhead Console..........................................2-53
Owner Checks and Services.............................. 6-9
Owners, Canadian............................................... ii
P
Park (P)
Shifting Into................................................2-32
Shifting Out of............................................2-34
Parking
Brake........................................................2-31
Over Things That Burn.................................2-34
Passenger Airbag Status Indicator.....................3-36
Passenger Sensing System..............................1-62
Passing.........................................................4-12
Passlock
®......................................................2-18
Power
Accessory Outlets........................................3-19
Door Locks.................................................. 2-9
Electrical System.........................................5-90
Lumbar Controls........................................... 1-4
Rear Quarter Windows.................................2-16
Reduced Engine Light..................................3-46
Retained Accessory (RAP)............................2-20
Seat............................................................ 1-3
Steering Fluid.............................................5-34
Windows....................................................2-15
Pretensioners, Safety Belt................................1-29
Programmable Automatic Door Locks.................2-10
9