2003 CHEVROLET TAHOE check oil

Notice:If you keep driving your vehicle with the
transmission temperature gage above the normal
operating range, you can damage the transmission.
This could lead to costly repairs that may not be
covered under your warranty.
The following situations can cause the transmission to
operate at higher temperatures:
·Towing a trailer
·Hot outside air temperatures
·Hauling a large or heavy load
·Low transmission ¯uid level
·High transmission ¯uid level
·Restricted air ¯ow to the radiator and the auxiliary
transmission oil cooler (if equipped).
A temporary solution to hotter transmission operating
temperatures may be to let the transmission cool down.
If the transmission is operated at higher temperatures
on a frequent basis, see
Scheduled Maintenance
on page 6-5for the proper transmission maintenance
intervals.
Malfunction Indicator Lamp
Check Engine Light
Your vehicle is equipped
with a computer which
monitors operation of the
fuel, ignition and emission
control systems.
This system is called OBD II (On-Board
Diagnostics-Second Generation) and is intended to
assure that emissions are at acceptable levels for the life
of the vehicle, helping to produce a cleaner environment.
The Check Engine light comes on to indicate that there is
a problem and service is required. Malfunctions often will
be indicated by the system before any problem is
apparent. This may prevent more serious damage to your
vehicle. This system is also designed to assist your
service technician in correctly diagnosing any
malfunction.
Notice:If you keep driving your vehicle with this
light on, after a while, your emission controls may
not work as well, your fuel economy may not be as
good and your engine may not run as smoothly. This
could lead to costly repairs that may not be covered
by your warranty.
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Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have or
may begin programs to inspect the emission control
equipment on your vehicle. Failure to pass this
inspection could prevent you from getting a vehicle
registration.
Here are some things you need to know to help your
vehicle pass an inspection:
Your vehicle will not pass this inspection if the Check
Engine light is on or not working properly.
Your vehicle will not pass this inspection if the OBD
(on-board diagnostic) system determines that critical
emission control systems have not been completely
diagnosed by the system. The vehicle would be
considered not ready for inspection. This can happen if
you have recently replaced your battery or if your
battery has run down. The diagnostic system is
designed to evaluate critical emission control systems
during normal driving. This may take several days
of routine driving. If you have done this and your vehicle
still does not pass the inspection for lack of OBD
system readiness, your GM dealer can prepare the
vehicle for inspection.
Oil Pressure Gage
The oil pressure gage shows the engine oil pressure in
psi (pounds per square inch) when the engine is
running. Canadian vehicles indicate pressure in kPa
(kilopascals).
Oil pressure may vary with engine speed, outside
temperature and oil viscosity, but readings above the
low pressure zone indicate the normal operating range.
A reading in the low pressure zone may be caused by a
dangerously low oil level or some other problem causing
low oil pressure. Check your oil as soon as possible. See
Oil Pressure LowunderDIC Warnings and Messages on
page 3-64andEngine Oil on page 5-18. United States
Canada
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{CAUTION:
Do not keep driving if the oil pressure is low. If
you do, your engine can become so hot that it
catches ®re. You or others could be burned.
Check your oil as soon as possible and have
your vehicle serviced.
Notice:Damage to your engine from neglected oil
problems can be costly and is not covered by
your warranty.
Cruise Control Light
The cruise light comes on
whenever you set your
cruise control. See ªCruise
Controlº under
Turn
Signal/Multifunction Lever
on page 3-7
.
Four-Wheel-Drive Light
The four-wheel drive
indicator will light up when
you shift a manual
transfer case into
four-wheel drive and the
front axle engages.
Some delay between shifting and the indicator's lighting
is normal.
See
Four-Wheel Drive on page 2-29for more
information.
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The DIC does not replace the need to maintain your
vehicle as recommended in the Maintenance Schedule
in this manual. Also, the oil change reminder does
not measure how much oil you have in your engine.
So, be sure to check your oil level often. See
Engine Oil
on page 5-18.
Personalization Button
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.
If your vehicle is not equipped with the DIC steering
wheel buttons you will not have any of these
personalization options except for DISPLAY
LANGUAGE. See DISPLAY LANGUAGE later in this
section for more information.
·AUTOMATIC LOCKING
·AUTOMATIC UNLOCKING
·REMOTE LOCK FEEDBACK
·ALARM WARNING TYPE
·REMOTE UNLOCK FEEDBACK
·HEADLAMPS ON AT EXIT
·PERIMETER LIGHTING
·SEAT POSITION RECALL
·EASY EXIT DRIVER SEAT
·CURB VIEW ASSIST
·DISPLAY LANGUAGE
·DISPLAY UNITS (ENG/MET)
The default options for the above features were set
when your vehicle left the factory. The default options
are noted in the text following, but may have been
changed from their default state since then. 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):The headlamps
will ¯ash and the horn will chirp when the alarm is
active.
ALARM WARNING: OFF:There will be no alarm
warning on activation.
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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. Press the select
button to acknowledge this message and clear it
from the DIC display.
BUCKLE SEATBELT
If your vehicle is equipped with the passenger sensing
system, this message reminds you to buckle the
driver's and/or passenger's seatbelt. See
Passenger
Sensing System on page 1-83. The message will come
on and a chime will sound when the ignition is in
RUN or ON and the following conditions occur:
·The driver's seatbelt is unbuckled.
·The driver's seatbelt is unbuckled and the
passenger's seatbelt is unbuckled with the
passenger airbag enabled.
Press the select button to acknowledge the message
and clear it from the DIC display.
BUCKLE PASSENGER
If your vehicle is equipped with the passenger sensing
system, this message reminds you to buckle the
passenger's seatbelt. See
Passenger Sensing System
on page 1-83. This message will come on and a
chime will sound when the ignition is in RUN or ON and
the driver's seatbelt is buckled and the passenger's
seatbelt is unbuckled with the passenger airbag enabled.
Press the select button to acknowledge this message
and clear it from the DIC display.
CHANGE ENGINE OIL
This message is displayed when the engine oil needs to
be changed.
When you change the engine oil, be sure to reset the
CHANGE ENGINE OIL message. This message
will clear itself after 10 seconds until the next ignition
cycle, or until the message is reset. See
Engine
Oil, When to ChangeunderEngine Oil on page 5-18.
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CHECK OIL LEVEL
If the oil level in the vehicle is low, this message will
appear on the DIC. Check the oil level and correct it as
necessary. You may need to let the vehicle cool or
warm up and cycle the ignition to be sure this message
will clear. The message will clear itself after 10
seconds, until the next ignition cycle. Once the problem
is corrected, press the select button to clear the
message from the DIC display.
CHECK TIRE PRESSURE
If a low tire pressure is detected in any of the vehicle's
tires, this message will appear on the DIC, along
with a chime. Press the select button, or reset stem, to
acknowledge the message and clear it from the DIC
display. It will appear at each ignition cycle until the tires
are in¯ated to the correct in¯ation pressure.
CHECK WASHER FLUID
If the washer ¯uid level is low, this message will appear
on the DIC. Press the select button to acknowledge
the message and clear it from the DIC display.
The message will clear itself after 10 seconds, or until
the next ignition cycle. Adding washer ¯uid will clear the
message.
DRIVER DOOR AJAR
If the driver's door is not fully closed, this message will
appear on the display and you will hear a chime.
Stop and turn off the vehicle, check the door for
obstacles, and close the door again. Check to see if the
message still appears on the DIC. Press the select
button to acknowledge the message and clear it from
the DIC display.
ENGINE COOLANT HOT
If the cooling system temperature gets hot, this message
will appear in the DIC. 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 safe operating
temperature. To acknowledge this message press the
select button
ENGINE OVERHEATED
If the engine cooling system reaches unsafe
temperatures for operation, this message will appear in
the DIC and you will hear a chime. Stop and turn off
the vehicle as soon as it is safe to do so to avoid severe
damage. The message will clear when the engine has
cooled to a safe operating temperature.
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FUEL LEVEL LOW
If the fuel level is low, this message will appear on the
DIC and you will hear a chime. Refuel as soon as
possible. Press the select button will acknowledge this
message and clear it from the DIC display.
LEFT REAR DOOR AJAR
If the driver's side rear door is not fully closed, this
message will appear on the display and you will hear a
chime. Stop and turn off the vehicle, check the door
for obstacles, and close the door again. Check to see if
the message still appears on the DIC. Press the
select button to acknowledge the message and clear it
from the DIC display.
LOW COOLANT LEVEL
If your vehicle is equipped with a low coolant level
sensor, this message will appear on the DIC if
the engine coolant level is low. Adding coolant will clear
the message.
OIL LIFE RESET
This message will appear on the DIC display for about 10
seconds after the change engine oil message is reset.
OIL PRESSURE LOW
If low oil pressure levels occur, this message will be
displayed on the DIC and a chime will sound. 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.
PASSENGER DOOR AJAR
If the passenger's door is not fully closed, this message
will appear on the display and you will hear a chime.
Stop and turn off the vehicle, check the door for
obstacles, and close the door again. Check to see if the
message still appears on the DIC. Press the select
button to acknowledge the message and clear it from
the DIC display.
REAR ACCESS OPEN
If the liftgate is open while the ignition is in RUN, this
message will appear on the DIC display and you will hear
a chime. Turn the vehicle off and check the liftgate.
Restart the vehicle and check for the message on the DIC
display. Press the select button to acknowledge the
message and clear it from the DIC display.
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Just before you leave the lane, glance quickly over your
shoulder to make sure there isn't another vehicle in
your ªblindº spot.
Once you are moving on the freeway, make certain you
allow a reasonable following distance. Expect to move
slightly slower at night.
When you want to leave the freeway, move to the
proper lane well in advance. If you miss your exit, do
not, under any circumstances, stop and back up. Drive
on to the next exit.
The exit ramp can be curved, sometimes quite sharply.
The exit speed is usually posted.
Reduce your speed according to your speedometer, not
to your sense of motion. After driving for any distance
at higher speeds, you may tend to think you are
going slower than you actually are.
Before Leaving on a Long Trip
Make sure you're ready. Try to be well rested. If you
must start when you're not fresh Ð such as after a day's
work Ð don't plan to make too many miles that ®rst
part of the journey. Wear comfortable clothing and shoes
you can easily drive in.Is your vehicle ready for a long trip? If you keep it
serviced and maintained, it's ready to go. If it needs
service, have it done before starting out. Of course,
you'll ®nd experienced and able service experts in
GM dealerships all across North America. They'll be
ready and willing to help if you need it.
Here are some things you can check before a trip:
·Windshield Washer Fluid:Is the reservoir full? Are
all windows clean inside and outside?
·Wiper Blades:Are they in good shape?
·Fuel, Engine Oil, Other Fluids:Have you checked
all levels?
·Lamps:Are they all working? Are the lenses clean?
·Tires:They are vitally important to a safe,
trouble-free trip. Is the tread good enough for
long-distance driving? Are the tires all in¯ated to the
recommended pressure?
·Weather Forecasts:What's the weather outlook
along your route? Should you delay your trip a
short time to avoid a major storm system?
·Maps:Do you have up-to-date maps?
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