2003 GMC ENVOY oil change

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-6
Horn.............................................................3-7
Tilt Wheel.....................................................3-7
Turn Signal/Multifunction Lever.........................3-7
Exterior Lamps.............................................3-15
Interior Lamps..............................................3-17
Accessory Power Outlets...............................3-19
Ashtrays and Cigarette Lighter........................3-20
Climate Controls............................................3-21
Dual Climate Control System..........................3-21
Dual Automatic Climate Control System...........3-24
Rear Climate Control System.........................3-29
Steering Wheel Climate Controls.....................3-33
Climate Controls Personalization.....................3-33
Warning Lights, Gages and Indicators.............3-34
Instrument Panel Cluster................................3-35
Speedometer and Odometer...........................3-36
Tachometer.................................................3-36
Safety Belt Reminder Light.............................3-37Air Bag Readiness Light................................3-37
Charging System Light..................................3-38
Voltmeter Gage............................................3-39
Brake System Warning Light..........................3-39
Anti-Lock Brake System Warning Light.............3-41
Engine Coolant Temperature Gage..................3-41
Malfunction Indicator Lamp.............................3-42
Oil Pressure Gage........................................3-45
Change Engine Oil Light................................3-46
Security Light...............................................3-46
Cruise Control Light......................................3-47
Reduced Engine Power Light.........................3-47
Service Four-Wheel Drive Warning Light..........3-48
Check Gages Warning Light...........................3-48
Gate Ajar Light.............................................3-49
Fuel Gage...................................................3-49
Low Fuel Warning Light.................................3-50
Driver Information Center (DIC).......................3-50
DIC Operation and Displays...........................3-51
DIC Warnings and Messages.........................3-60
Section 3 Instrument Panel
3-1

Change Engine Oil Light
This light is displayed when the engine oil needs to be
changed.
Once the engine oil has been changed, the CHANGE
ENG OIL light must be reset. Until it is reset, the light will
be displayed when the engine is on.
Security Light
This light will come on brie¯y when you turn the key
toward START. The light will stay on until the engine
starts.
If the light ¯ashes, the Passlock
žsystem has entered a
tamper mode. If the vehicle fails to start, seePasslockž
on page 2-18.
If the light comes on continuously while driving and
stays on, there may be a problem with the Passlock
ž
system. Your vehicle will not be protected by Passlockž,
and you should see your dealer.
Also, see
Content Theft-Deterrent on page 2-17for
additional information regarding the SECURITY light. United States
CanadaUnited StatesCanada
3-46

Time will continue to be counted as long as the ignition
is on, even if another display is being shown on the
DIC. The timer will record up to 99 hours, 59 minutes
and 59 seconds (99:59:59) after which the display
will roll back to zero.
To stop the counting of time, press the select button
brie¯y while TIMER is displayed.
To reset the timer to zero, press and hold the select
button while TIMER is displayed.
Fuel Information
Use the fuel information button to scroll through the
range, average fuel economy, instant fuel economy and
the GM Oil Life SystemŸ.
Fuel Range
Press the fuel information button until RANGE appears
to display the remaining distance you can drive
without refueling. It's based on fuel economy and the
fuel remaining in the tank. The display will show LOW if
the fuel level is low.
The fuel economy data used to determine fuel range is
an average of recent driving conditions. As your
driving conditions change, this data is gradually updated.
Fuel range cannot be reset.
Average Fuel Economy
Press the fuel information button until AVG 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 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 appears in
the display. Instant fuel economy is how many miles
per gallon your vehicle is 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 SystemŸ
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.
3-52

Always reset the engine oil life after an oil change. To
reset the Oil Life System press and hold the select
button while ENGINE OIL LIFE is displayed.
The oil change reminder does not measure how much
oil you have in your engine. So, be sure to check your oil
level often. For more information, see
Engine Oil on
page 5-15.
Personalization
You can program certain features to a preferred setting
for up to two people. Press the personalization button
to scroll through the following personalization features.
All of the personalization options may not be available
on your vehicle. Only the options available will be
displayed on your DIC.
·ALARM WARNING TYPE
·AUTOMATIC LOCKING
·AUTOMATIC UNLOCKING
·SEAT POSITION RECALL
·PERIMETER LIGHTING
·REMOTE LOCK FEEDBACK
·REMOTE UNLOCK FEEDBACK
·HEADLAMPS ON AT EXIT
·MIRROR CURB VIEW ASSIST
·EASY EXIT DRIVER SEAT
·DISPLAY UNITS (E/M)
·DISPLAY LANGUAGE
The driver's preferences are recalled by pressing the
unlock button on the remote keyless entry transmitter or
by pressing the appropriate memory button 1 or 2
located on the driver's door.
Alarm Warning Type
Press the personalization button until ALARM
WARNING TYPE appears in the display. To select your
personalization for alarm warning type, press the
select button while ALARM WARNING TYPE is
displayed on the DIC. Pressing the select button will
scroll through the following choices:
·ALARM WARNING: BOTH (default)
·ALARM WARNING: OFF
·ALARM WARNING: HORN
·ALARM WARNING: LAMPS
If you choose BOTH, the headlamps will ¯ash and the
horn will chirp when the alarm is active.
If you choose OFF, there will be no alarm warning on
activation.
If you choose HORN, the horn will chirp when the alarm
is active.
3-53

DIC Warnings and Messages
Warning messages are displayed on the DIC to notify
the driver that the status of the vehicle has changed and
that some action may be needed by the driver to
correct the condition. More than one message may
appear at one time. They will appear one behind
the other. Some messages may not require immediate
action but you should press the select button to
acknowledge that you received the message and clear it
from the display. Some messages cannot be cleared
from the display because they are more urgent. These
messages require action before they can be removed
from the DIC display. The following are the possible
messages that can be displayed and some information
about them.
ENGINE COOLANT HOT/IDLE ENGINE
If the cooling system temperature gets hot, this
message will appear in the DIC and you will hear a
chime. Stop the vehicle and let the engine idle in
PARK (P) to allow the coolant to reach a safe
temperature. This message will clear when the coolant
temperature drops to a safe operating temperature.
OIL PRESSURE LOW/STOP ENGINE
If low oil pressure levels occur, this message will
be displayed on the DIC. Stop the vehicle as soon as
safely possible and do not operate it until the cause
of the low oil pressure has been corrected. Check your
oil as soon as possible and have your vehicle
serviced.
BATTERY NOT CHARGING
If the battery is not charging during operation, this
message will appear on the DIC. Driving with this
problem could drain your battery. Have the electrical
system checked as soon as possible. Pressing the
select button will acknowledge this message and clear it
from the DIC display.
SERVICE AIR BAG
If there is a problem with the air bag system this
message will be displayed on the DIC. Have a quali®ed
technician inspect the system for problems. Pressing
the select button will acknowledge this message
and clear it from the DIC display.
3-60

Care of Your CDs and DVDs
Handle discs carefully. Store them in their original cases
or other protective cases and away from direct sunlight
and dust. If the surface of a disc is soiled, dampen
a clean, soft cloth in a mild, neutral detergent solution
and clean it, wiping from the center to the edge.
Be sure never to touch the side without writing when
handling discs. Pick up discs by grasping the outer
edges or the edge of the hole and the outer edge.
Care of Your CD and DVD Player
The use of CD lens cleaner discs is not advised, due to
the risk of contaminating the lens of the CD optics
with lubricants internal to the CD mechanism.
Cleaning the Video Screen
Pour some isopropyl or rubbing alcohol on a clean cloth
and gently wipe the video screen. Do not spray
directly onto the screen and do not press too hard or
too long on the video screen.
Fixed Mast Antenna
The ®xed mast antenna can withstand most car washes
without being damaged. If the mast should ever
become slightly bent, you can straighten it out by hand.
If the mast is badly bent, as it might be by vandals,
you should replace it.
Check occasionally to be sure the mast is still tightened
to the fender. If tightening is required, tighten by
hand, then with a wrench one quarter turn.
Chime Level Adjustment
The volume level of the vehicle's chimes can be
controlled by the radio. To change the volume level,
press and hold pushbutton 6 with the ignition on and the
radio power off. The chime volume level will change
from the normal level to loud, and LOUD will be
displayed on the radio. To change back to the default or
normal setting, press and hold pushbutton 6 again.
The chime level will change from the loud level
to normal, and NORMAL will be displayed.
3-107

What Kind of Engine Oil to Use
Oils recommended for your vehicle can be identi®ed by
looking for the starburst symbol.
This symbol indicates that the oil has been certi®ed by
the American Petroleum Institute (API). Do not use
any oil which does not carry this starburst symbol.
If you choose to perform
the engine oil change
service yourself, be sure
the oil you use has
the starburst symbol on
the front of the oil
container. If you have your
oil changed for you, be
sure the oil put into
your engine is American
Petroleum Institute certi®ed
for gasoline engines.
You should also use the proper viscosity oil for your
vehicle, as shown in the viscosity chart.
5-17

As in the chart shown previously, SAE 5W-30 is the
only viscosity grade recommended for your vehicle. You
should look for and use only oils which have the API
Starburst symbol and which are also identi®ed as
SAE 5W-30. If you cannot ®nd such SAE 5W-30 oils,
you can use an SAE 10W-30 oil which has the API
Starburst symbol, if it's going to be 0ÉF (-18ÉC)
or above. Do not use other viscosity grade oils, such as
SAE 10W-40 or SAE 20W-50 under any conditions.
Notice:Use only engine oil with the American
Petroleum Institute Certi®ed For Gasoline Engines
starburst symbol. Failure to use the recommended
oil can result in engine damage not covered by
your warranty.
GM Goodwrench
žoil meets all the requirements for
your vehicle.
If you are in an area of extreme cold, where the
temperature falls below-20ÉF (-29ÉC), it is
recommended that you use either an SAE 5W-30
synthetic oil or an SAE 0W-30 oil. Both will provide
easier cold starting and better protection for your engine
at extremely low temperatures.
Engine Oil Additives
Don't add anything to your oil. The recommended oils
with the starburst symbol are all you will need for
good performance and engine protection.
When to Change Engine Oil
(GM Oil Life System)
Your vehicle has a computer system that lets you know
when to change the engine oil and ®lter. This is
based on engine revolutions and engine temperature,
and not on mileage. Based on driving conditions,
the mileage at which an oil change will be indicated can
vary considerably. For the oil life system to work
properly, you must reset the system every time the oil is
changed.
When the system has calculated that oil life has been
diminished, it will indicate that an oil change is necessary.
A CHANGE ENG OIL light will come on. Change your oil
as soon as possible within the next two times you stop for
fuel. It is possible that, if you are driving under the best
conditions, the oil life system may not indicate that an oil
change is necessary for over a year.
5-18