air filter indicator GMC SIERRA 2003 Owner's Manual

A. Engine Air Cleaner/Filter
B. Coolant Surge Tank
C. Air Cleaner/Filter Restriction Indicator
D. Engine Oil Dipstick
E. Engine Oil Fill Cap
F. Automatic Transmission Dipstick
G. Fan
H. Remote Negative (−) Terminal (GND)
I. Remote Positive (+) Terminal
J. Power Steering Fluid Reservoir
K. Brake Fluid Reservoir
L. Underhood Fuse Block
M. Battery
N. Windshield Washer Fluid Reservoir
Engine Oil
If the CHECK OIL LEVEL light appears on the
instrument cluster, it means you need to check your
engine oil level right away. For more information,
see“CHECK OIL LEVEL”underDIC Warnings and
Messages on page 3-51.
You should check your engine oil level regularly; this is
an added reminder.
Checking Engine Oil
It’s a good idea to check your engine oil every time you
get fuel. In order to get an accurate reading, the oil
must be warm and the vehicle must be on level ground.
The engine oil dipstick has a yellow looped handle and
is located on the passenger’s side of the vehicle.
SeeEngine Compartment Overview on page 5-12for
more information on location.
Turn off the engine and give the oil several minutes to
drain back into the oil pan. If you don’t, the oil
dipstick might not show the actual level.
Pull out the dipstick and clean it with a paper towel or
cloth, then push it back in all the way. Remove it again,
keeping the tip down, and check the level.
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2003 - Sierra Denali

Engine Air Cleaner/Filter
SeeEngine Compartment
Overview on page 5-12for
location of engine air
cleaner/filter and change
indicator (if equipped).
When to Inspect
If your vehicle is equipped with afilter change indicator
it lets you know when thefilter needs to be replaced.
Inspect the air cleaner/filter change indicator every
15,000 miles (25 000 km) and replace thefilter if
necessary. Vehicles without a change indicator inspect
the air cleaner/filter every 15,000 miles (25 000 km)
and replace thefilter every 30,000 miles (50 000 km).
If you are driving in dusty/dirty conditions, inspect
thefilter or change indicator at each engine oil change.
How to Inspect
Locate thefilter change indicator. When the change
indicator turns black or is in the red/orange“change”
zone, replace thefilter and reset the indicator.
To inspect the air cleaner/filter, remove thefilter from
the vehicle and lightly shakefilter to release loose dust
and dirt. If thefilter remains“caked”with dirt, a new
filter is required.
To inspect and replace thefilter and reset the indicator
(if equipped), do the following:
The air cleaner/filter assembly is located on the front
corner of the engine compartment on the passenger’s
side of the vehicle.
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2003 - Sierra Denali

If the system is ever reset accidentally, you must
change your oil at 3,000 miles (5 000 km) since your
last oil change. Remember to reset the oil life system
whenever the oil is changed. SeeEngine Oil on
page 5-13for information on resetting the system.
An Emission Control Service.
Lubricate chassis components with each engine oil
and filter change.
Lubricate the front suspension, ball joints, steering
linkage, transmission shift linkage, transfer case shift
linkage and parking brake cable guides. Ball joints
should not be lubricated unless their temperature is 10°F
(-12°C) or higher or they could be damaged.
See the mileage intervals following for additional
services that may be performed with an engine oil
change and chassis lubrication. After the services are
performed, record the date, odometer reading and
who performed the service on the maintenance record
pages in Part E of this schedule.
7,500 Miles (12 500 km)
❑Check rear/front axlefluid level and addfluid as
needed. Check constant velocity joints and axle seals
for leaking.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-58for proper rotation pattern and additional
information.(See footnote +.)
15,000 Miles (25 000 km)
❑Inspect engine air cleanerfilter change indicator.
If necessary, replace thefilter. If vehicle is driven
in dusty/dirty conditions, inspectfilter change
indicator at every engine oil change. SeeEngine Air
Cleaner/Filter on page 5-18for more information.
An Emission Control Service. (See footnote†.)
❑Check rear/front axlefluid level and addfluid as
needed. Check constant velocity joints and axle seals
for leaking.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-58for proper rotation pattern and additional
information.(See footnote +.)
22,500 Miles (37 500 km)
❑Check rear/front axlefluid level and addfluid as
needed. Check constant velocity joints and axle seals
for leaking.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-58for proper rotation pattern and additional
information.(See footnote +.)
30,000 Miles (50 000 km)
❑Inspect engine air cleanerfilter change indicator.
If necessary, replace thefilter. If vehicle is driven
in dusty/dirty conditions, inspectfilter change
indicator at every engine oil change. SeeEngine Air
Cleaner/Filter on page 5-18for more information.
An Emission Control Service. (See footnote†.)
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2003 - Sierra Denali

❑Check rear/front axlefluid level and addfluid as
needed. Check constant velocity joints and axle seals
for leaking.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-58for proper rotation pattern and additional
information.(See footnote +.)
❑Replace fuelfilter.An Emission Control Service.
(See footnote†.)
37,500 Miles (62 500 km)
❑Check rear/front axlefluid level and addfluid as
needed. Check constant velocity joints and axle seals
for leaking.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-58for proper rotation pattern and additional
information.(See footnote +.)
45,000 Miles (75 000 km)
❑Inspect engine air cleanerfilter change indicator.
If necessary, replace thefilter. If vehicle is driven
in dusty/dirty conditions, inspectfilter change
indicator at every engine oil change. SeeEngine Air
Cleaner/Filter on page 5-18for more information.
An Emission Control Service. (See footnote†.)
❑Check rear/front axlefluid level and addfluid as
needed. Check constant velocity joints and axle seals
for leaking.❑Rotate tires. SeeTire Inspection and Rotation on
page 5-58for proper rotation pattern and additional
information.(See footnote +.)
50,000 Miles (83 000 km)
❑Change automatic transmissionfluid andfilter 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.
If you do not use your vehicle under any of these
conditions, change the fluid and filter at 100,000 miles
(166 000 km).
52,500 Miles (87 500 km)
❑Check rear/front axle uid level and add uid as
needed. Check constant velocity joints and axle seals
for leaking.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-58for proper rotation pattern and additional
information.(See footnote +.)
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2003 - Sierra Denali

60,000 Miles (100 000 km)
❑Inspect engine air cleanerlter change indicator.
If necessary, replace thelter. If vehicle is driven
in dusty/dirty conditions, inspectlter change
indicator at every engine oil change. SeeEngine Air
Cleaner/Filter on page 5-18for more information.
An Emission Control Service. (See footnote†.)
❑Check rear/front axleuid level and adduid as
needed. Check constant velocity joints and axle seals
for leaking.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-58for proper rotation pattern and additional
information.(See footnote +.)
❑Replace fuellter.An Emission Control Service.
(See footnote†.)
❑Inspect Evaporative Control System. Check all fuel
and vapor lines and hoses for proper hook-up,
routing and condition. Check that the purge valve
works properly, if equipped. Replace as needed.
An Emission Control Service. (See footnote†.)
67,500 Miles (112 500 km)
❑Check rear/front axleuid level and adduid as
needed. Check constant velocity joints and axle seals
for leaking.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-58for proper rotation pattern and additional
information.(See footnote +.)
75,000 Miles (125 000 km)
❑Inspect engine air cleanerlter change indicator.
If necessary, replace thelter. If vehicle is driven
in dusty/dirty conditions, inspectlter change
indicator at every engine oil change. SeeEngine Air
Cleaner/Filter on page 5-18for more information.
An Emission Control Service. (See footnote†.)
❑Check rear/front axleuid level and adduid as
needed. Check constant velocity joints and axle seals
for leaking.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-58for proper rotation pattern and additional
information.(See footnote +.)
82,500 Miles (137 500 km)
❑Check rear/front axleuid level and adduid as
needed. Check constant velocity joints and axle seals
for leaking.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-58for proper rotation pattern and additional
information.(See footnote +.)
90,000 Miles (150 000 km)
❑Inspect engine air cleanerlter change indicator.
If necessary, replace thelter. If vehicle is driven
in dusty/dirty conditions, inspectlter change
indicator at every engine oil change. SeeEngine Air
Cleaner/Filter on page 5-18for more information.
An Emission Control Service. (See footnote†.)
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2003 - Sierra Denali

A
Accessory Power Outlets.................................3-16
Adding Washer Fluid.......................................5-35
Additional Program Information........................... 7-8
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment............................5-91
Add-On Equipment..........................................4-50
Adjusting the Speakers (Balance/Fade)..............3-60
After Off-Road Driving.....................................4-30
Air Bag
Off Light.....................................................3-28
Passenger Status Indicator...........................3-31
Readiness Light..........................................3-27
Air Bag Systems.............................................1-55
Adding Equipment to Your Air Bag-Equipped
Vehicle...................................................1-71
Air Bag Off Switch.......................................1-61
How Does an Air Bag Restrain?....................1-59
Passenger Sensing System...........................1-66
Servicing Your Air Bag-Equipped Vehicle.........1-70
What Makes an Air Bag Inflate?....................1-59
What Will You See After an Air Bag Inflates?......1-59
When Should an Air Bag Inflate?...................1-58
Where Are the Air Bags?
..............................1-57
Air Cleaner/Filter, Engine
.................................5-18
Air Conditioning
..............................................3-21
All Overseas Locations
...................................... 7-4
All-Wheel Drive
...............................................5-45
All-Wheel Drive (AWD) System
.........................2-21AM ...............................................................3-76
Antenna, Fixed Mast.......................................3-78
Antenna, XM™ Satellite Radio Antenna System.....3-78
Anti-lock Brake System..................................... 4-6
Anti-Lock Brake, System Warning Light..............3-35
Appearance Care............................................5-82
Care of Safety Belts....................................5-84
Chemical Paint Spotting...............................5-88
Cleaning the Inside of Your Vehicle................5-83
Cleaning the Outside of Your Vehicle..............5-85
Finish Damage............................................5-87
GM Vehicle Care/Appearance Materials..........5-88
Sheet Metal Damage...................................5-87
Underbody Maintenance...............................5-87
Weatherstrips..............................................5-85
Approaching a Hill..........................................4-23
Ashtrays........................................................3-17
Audio System(s).............................................3-56
Audio Steering Wheel Controls......................3-76
Care of Your Cassette Tape Player................3-77
Care of Your CD Player...............................3-78
Care of Your CDs ........................................3-78
CD Changer
...............................................3-73
Fixed Mast Antenna
.....................................3-78
Navigation/Radio System
..............................3-70
Radio with Cassette and CD
.........................3-57
Rear Seat Audio (RSA)
................................3-71
Setting the Time
..........................................3-57
Theft-Deterrent Feature
................................3-75
Understanding Radio Reception
.....................3-76
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2003 - Sierra Denali