low oil pressure CHEVROLET IMPALA 2003 8.G Owners Manual

Vehicle Personalization
Some of the convenience features can be reset or
customized to perform according to your preference.
Features you can program depend upon the options that
came with your vehicle. The following list shows
features that can be reset or customized along with the
options.
·Settings (Available for All)
·GM Oil Life System Reset (Available for All)
·Low Tire Pressure Reset (If Equipped)
·Delayed Headlamp Illumination (Available for All)
·Automatic Door Lock and Unlock (Available for All)
·Remote Visual Veri®cation (Available with Remote
Keyless Entry)
·Remote Audible Veri®cation (Available with Remote
Keyless Entry)
·Content Theft Operation (Optional with Content
Theft System)
·Trunk Jamb (Optional with Content Theft System)
·Horn Chirp On Timer (Available with Remote
Keyless Entry)
·Remote Keyless Entry Transmitter Programming
(Available with Remote Keyless Entry)
·Return to Original Factory Settings (Available
for All)
·Exit Vehicle Customization Mode
Programmable Modes
To reset or customize the features, ®rst enter the
vehicle customization main menu. To enter the main
menu, do the following:
1. Turn the ignition to ACC or ON. The radio must be
off.
2. Press and hold the TUNE or DISP knob on the
radio for at least ®ve seconds until SETTINGS is
displayed.
3. Press the SEEK or PSCAN up or down arrows to
scroll through each available feature on your main
menu.
4. Press the PREV or NEXT buttons to scroll through
the lower menu. An asterisk (*) will appear next to
the item that is the current setting.
The following information shows how to reset or
customize features after entering the main menu.
SETTINGS (Display Current Settings)
This feature displays your vehicle personalization
settings.
2-45

OIL LIFE (GM Oil Life System Reset)
This feature allows you to reset the GM Oil Life System
Monitor after an oil change, seeEngine Oil on
page 5-16. Be careful not to reset the OIL LIFE at any
time other than when the oil has been changed. To clear
the CHANGE ENGINE OIL light from the instrument
panel cluster and reset the oil life monitor:
1. Scroll, using the SEEK/PSCAN up or down arrows,
until OIL LIFE appears on the display.
2. Press the PREV or NEXT button to enter the
submenu. RESET will then be displayed.
3. Press the TUNE/DISP knob to reset. A chime will
be heard to verify the new setting and DONE will
be displayed for one second.
The CHANGE ENGINE OIL light is now reset. You can
either exit the programming mode by following the
instructions later in this section or program the next
feature available on your vehicle.
TIRE MON (Tire In¯ation Monitor
Reset)
This feature allows you to reset the tire pressure
monitor after checking all tire pressures, seeTires on
page 5-61. To clear the LOW TIRE PRESSURE
light from the instrument panel cluster and reset the low
tire pressure monitor do the following:
1. Scroll, using the SEEK/PSCAN up or down arrows,
until TIRE MON appears on the display.
2. Press the PREV or NEXT button to enter the
submenu. RESET will be displayed.
3. Press the TUNE/DISP knob to reset. A chime will
be heard to verify the new setting and DONE will
be displayed for one second.
The low tire pressure monitor is now reset. You can
either exit the programming mode by following the
instructions later in this section or program the next
feature available on your vehicle.
2-46

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.............................................3-14
Interior Lamps..............................................3-17
Accessory Power Outlets...............................3-19
Auxiliary Power Connection
(Power Drop)............................................3-20
Ashtrays and Cigarette Lighter........................3-21
Climate Controls............................................3-22
Dual Climate Control System..........................3-22
Outlet Adjustment.........................................3-25
Passenger Compartment Air Filter...................3-26
Warning Lights, Gages and Indicators.............3-28
Instrument Panel Cluster................................3-29
Speedometer and Odometer...........................3-31
Tachometer.................................................3-32
Safety Belt Reminder Light.............................3-32
Air Bag Readiness Light................................3-33
Brake System Warning Light..........................3-34Anti-Lock Brake System Warning Light.............3-35
Traction Control System (TCS) Warning Light . . .3-35
Engine Coolant Temperature Gage..................3-36
Malfunction Indicator Lamp.............................3-37
Cruise Control Light......................................3-39
Fuel Gage...................................................3-40
Message Center.............................................3-40
Service Traction System Warning Message......3-41
Traction Active Message................................3-41
Battery Warning Message..............................3-42
Hot Coolant Temperature Warning Message.....3-42
Low Oil Pressure Message............................3-43
Low Engine Oil Level Message.......................3-43
Change Engine Oil Message..........................3-44
Low Tire Message........................................3-44
Door Ajar Warning Message...........................3-45
Trunk Ajar Warning Message.........................3-45
Security Message.........................................3-46
Low Washer Fluid Warning Message...............3-46
Low Fuel Warning Message...........................3-47
Low Brake Fluid Warning Message.................3-47
Service Vehicle Soon Message.......................3-48
Highbeam Out Warning Message....................3-48
Section 3 Instrument Panel
3-1

Low Oil Pressure Message
This message is displayed in the message center when
the engine oil pressure is low. A chime will sound
continuously, also.
If this occurs, you should have your vehicle serviced
immediately.
{CAUTION:
Don't 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.
Low Engine Oil Level Message
Your vehicle may be equipped with a low engine oil
level message.
This message is displayed for 60 seconds at the start of
each ignition cycle when the engine oil level is low.
Four chimes will also sound.
When the ignition is turned off, this message will be
displayed again for three seconds to remind you
that your engine oil level is low. Be sure to have your
vehicle serviced right away.
See
Engine Oil on page 5-16on how to check the oil
level and for what type of oil to add. United States
Canada
United StatesCanada
3-43

Change Engine Oil Message
This message is displayed when the engine oil needs to
be changed. It will appear for 60 seconds.
Once the engine oil has been changed, the CHANGE
ENGINE OIL message must be reset. Until it is
reset, this message will be displayed for 60 seconds
each time you start the engine. For more information on
resetting the system, see ªHow to Reset the Change
Engine Oil Messageº under
Engine Oil on page 5-16.
Low Tire Message
Your vehicle may be equipped with the tire pressure
system which monitors the in¯ation pressure of the tires.
After the system has ªlearnedº the tire pressure with
properly in¯ated tires, the LOW TIRE PRESSURE
message will be displayed and four warning chimes will
sound if the tire pressure in one tire becomes 12 psi
(83 kPa) lower than the other three tires.
When you have checked the tire pressures, be sure to
reset the tire in¯ation monitor. See ªTire Pressure
Monitor Systemº under
Tires on page 5-61. United States
CanadaUnited StatesCanada
3-44

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?
4-22

A. Windshield Washer Fluid Reservoir. SeeWindshield
Washer Fluid on page 5-44.
B. Battery. See
Battery on page 5-48.
C. Remote Positive (+) Terminal. See
Jump Starting on
page 5-49.
D. Upper Underhood Fuse Block. See ªUpperhood
Fuse Block (Upper)º under
Fuses and Circuit
Breakers on page 5-95.
E. Lower Underhood Fuse Block. See ªUnderhood
Fuse Block (Lower)º under
Fuses and Circuit
Breakers on page 5-95.
F. Radiator Pressure Cap. See
Radiator Pressure Cap
on page 5-30.
G. Engine Coolant Recovery Tank. See
Cooling System
on page 5-33.
H. Power Steering Fluid Reservoir. See
Power Steering
Fluid on page 5-43.I. Electric Cooling Fan. See
Cooling System on
page 5-33.
J. Engine Oil Fill Cap. See ªChecking Engine Oilº
under
Engine Oil on page 5-16.
K. Engine Oil Dipstick. See ªChecking Engine Oilº
under
Engine Oil on page 5-16.
L. Bleed Valves (underneath engine shield). See ªHow
to Add Coolant to the Radiatorº under
Cooling
System on page 5-33.
M. Transaxle Fluid Dipstick. See
Automatic Transaxle
Fluid on page 5-24.
N. Brake Master Cylinder Reservoir. See
Brakes on
page 5-45.
O. Engine Air Cleaner/Filter. See
Engine Air
Cleaner/Filter on page 5-22.
5-13

A. Windshield Washer Fluid Reservoir. SeeWindshield
Washer Fluid on page 5-44.
B. Battery. See
Battery on page 5-48.
C. Remote Positive (+) Terminal. See
Jump Starting on
page 5-49.
D. Upper Underhood Fuse Block. See ªUpperhood
Fuse Block (Upper)º under
Fuses and Circuit
Breakers on page 5-95.
E. Lower Underhood Fuse Block. See ªUnderhood
Fuse Block (Lower)º under
Fuses and Circuit
Breakers on page 5-95.
F. Radiator Pressure Cap. See
Radiator Pressure Cap
on page 5-30.
G. Engine Coolant Recovery Tank. See
Cooling System
on page 5-33
H. Power Steering Fluid Reservoir (low in engine
compartment). SeePower Steering Fluid on
page 5-43.I. Electric Cooling Fan. See
Cooling System on
page 5-33.
J. Engine Oil Dipstick. See ªChecking Engine Oilº
under
Engine Oil on page 5-16.
K. Engine Oil Fill Cap. See ªChecking Engine Oilº
under
Engine Oil on page 5-16.
L. Bleed Valves (underneath engine shield). See ªHow
to Add Coolant to the Radiatorº under
Cooling
System on page 5-33.
M. Transaxle Fluid Dipstick. See
Automatic Transaxle
Fluid on page 5-24.
N. Brake Master Cylinder Reservoir. See
Brakes on
page 5-45.
O. Engine Air Cleaner/Filter. See
Engine Air
Cleaner/Filter on page 5-22.
5-15

Radiator Pressure Cap
Notice:Your radiator cap is a pressure-type cap
and must be tightly installed to prevent coolant loss
and possible engine damage from overheating.
Be sure the arrows on the cap line up with the
over¯ow tube on the radiator ®ller neck.
The radiator pressure cap is located in the front of the
engine compartment on the passenger's side, near
the diagonal cross brace. See
Engine Compartment
Overview on page 5-12for more information on location.
Engine Overheating
You will ®nd a coolant temperature gage and a warning
message about a hot engine on your instrument
panel cluster. See
Engine Coolant Temperature Gage
on page 3-36andHot Coolant Temperature Warning
Message on page 3-42.
Overheated Engine Protection
Operating Mode
This emergency operating mode allows your vehicle to
be driven to a safe place in an emergency situation.
If an overheated engine condition exists, an overheat
protection mode which alternates ®ring groups of
cylinders helps prevent engine damage. In this mode,
you will notice a signi®cant loss in power and engine
performance. The low coolant light may come on
and the temperature gage will indicate an overheat
condition exists. Driving extended miles (km) and/or
towing a trailer in the overheat protection mode should
be avoided.
Notice:After driving in the overheated engine
protection operating mode, to avoid engine damage,
allow the engine to cool before attempting any
repair. The engine oil will be severely degraded.
Repair the cause of coolant loss, change the oil
and reset the oil life system. See ªEngine Oilº in
the Index.
5-30

Inspection (cont.)
Throttle System...........................................6-15
Instrument Panel Brightness.............................3-17
Instrument Panel.............................................3-29
Cluster.......................................................3-29
Overview..................................................... 3-4
Interior Lamps................................................3-17
J
Jump Stating..................................................5-49
Key Lock Cylinders Service..............................6-11
Keyless Entry System....................................... 2-3
Keys............................................................... 2-2
L
Lamps...........................................................3-14
Exterior......................................................3-14
Interior.......................................................3-17
Lap Belt........................................................1-24
Lap-Shoulder Belt...................................1-15, 1-26
LATCH System...............................................1-43
Child Restraints...........................................1-43
Securing a Child Restraint Designed
for the LATCH System..............................1-45
Leaving Your Vehicle With the Engine Running . . . 2-29Leaving Your Vehicle.......................................2-10
Light.............................................................3-33
Air Bag Readiness.......................................3-33
Anti-Lock Brake System Warning...................3-35
Brake System Warning.................................3-34
Cruise Control.............................................3-39
Malfunction Indicator....................................3-37
Safety Belt Reminder...................................3-32
TCS Warning Light......................................3-35
Traction Control System (TCS) Warning..........3-35
Loading Your Vehicle.......................................4-32
Lockout Protection..........................................2-10
Locks............................................................. 2-8
Door........................................................... 2-8
Leaving Your Vehicle....................................2-10
Lockout Protection.......................................2-10
Power Door.................................................. 2-9
Programmable Automatic Door Locks............... 2-9
Loss of Control...............................................4-14
Low Brake Fluid Warning Message....................3-47
Low Engine Oil Level Message.........................3-43
Low Fuel Warning Message.............................3-47
Low Oil Pressure Message...............................3-43
Low Tire Message..........................................3-44
Low Washer Fluid Warning Message.................3-46
LT DELAY (Delayed Headlamp Illumination)........2-47
Lumbar........................................................... 1-3
Manual Controls............................................ 1-3
8