2003 BUICK LESABRE oil change

Notice:Your engine is designed to work with the
electronics in your vehicle. If you add electrical
parts or accessories, you could change the way the
engine operates. Before adding electrical equipment,
check with your dealer. If you don't, your engine
might not perform properly.
Engine Coolant Heater
If your vehicle has this feature, in very cold weather,
0ÉF (-18ÉC) or colder, the engine coolant heater
can help. You'll get easier starting and better fuel
economy during engine warm-up. Usually, the coolant
heater should be plugged in a minimum of four
hours prior to starting your vehicle. At temperatures
above 32ÉF (0ÉC), use of the coolant heater is not
required.
To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
The engine coolant heater cord is located on the
passenger's side of the vehicle, above the headlamp
assembly.3. Plug it into a normal, grounded 110-volt AC outlet.
{CAUTION:
Plugging the cord into an ungrounded outlet
could cause an electrical shock. Also, the
wrong kind of extension cord could overheat
and cause a ®re. You could be seriously
injured. Plug the cord into a properly grounded
three-prong 110-volt AC outlet. If the cord
won't reach, use a heavy-duty three-prong
extension cord rated for at least 15 amps.
4. Before starting the engine, be sure to unplug and
store the cord as it was before to keep it away
from moving engine parts. If you don't, it could be
damaged.
How long should you keep the coolant heater plugged
in? The answer depends on the outside temperature, the
kind of oil you have, and some other things. Instead
of trying to list everything here, we ask that you contact
your dealer in the area where you'll be parking your
vehicle. The dealer can give you the best advice for that
particular area.
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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
Head-Up Display (HUD).................................3-20
Accessory Power Outlets...............................3-22
Ashtrays and Cigarette Lighter........................3-23
Climate Controls............................................3-24
Climate Control System.................................3-24
Dual Automatic Climate Control System...........3-26
Outlet Adjustment.........................................3-30
Steering Wheel Climate Controls.....................3-31
Climate Controls Personalization.....................3-31
Warning Lights, Gages and Indicators.............3-32
Instrument Panel Cluster................................3-33
Speedometer and Odometer...........................3-35
Tachometer.................................................3-35
Safety Belt Reminder Light.............................3-36Air Bag Readiness Light................................3-36
Battery Warning Light....................................3-37
Brake System Warning Light..........................3-37
Anti-Lock Brake System Warning Light.............3-38
Traction Control System (TCS) Warning Light . . .3-39
Engine Coolant Temperature Gage..................3-40
Malfunction Indicator Lamp.............................3-40
Oil Pressure Light.........................................3-43
Security Light...............................................3-44
Cruise Control Light......................................3-44
Service Vehicle Soon Light............................3-44
Fuel Gage...................................................3-45
Driver Information Center (DIC).......................3-45
DIC Controls and Displays.............................3-46
DIC Warnings and Messages.........................3-49
DIC Vehicle Personalization............................3-50
Audio System(s).............................................3-55
Setting the Time...........................................3-55
Radio with CD..............................................3-56
Radio with Cassette and CD..........................3-62
Trunk-Mounted CD Changer...........................3-73
Personal Choice Radio Controls......................3-77
Section 3 Instrument Panel
3-1

Press the GAGE INFO button until OIL LIFE INDEX
appears in the display. The OIL LIFE INDEX NORMAL
display will show an estimate of the oil's remaining
useful life. When the oil life index is less than 10 percent,
the display will show OIL LIFE INDEX CHANGE OIL.
When you have the oil changed according to the
maintenance schedule (see
Part A: Scheduled
Maintenance Services on page 6-4), you will have to
reset the oil life monitor. To reset the Oil Life System,
see
Engine Oil on page 5-13.
Press the GAGE INFO button until TIRE PRESSURE
appears in the display. TIRE PRESSURE NORMAL
is displayed when the check tire pressure system
believes your vehicle's tire pressures are normal. If a
potential tire pressure problem is detected, the display
will show CHECK TIRE PRESSURE.
If you see the CHECK TIRE PRESSURE message, you
should stop as soon as you can and check all your
tires for damage. If a tire is ¯at, see
If a Tire Goes Flat
on page 5-66. Also check the tire pressure in all four
tires as soon as you can. SeeIn¯ation -- Tire Pressure
on page 5-58andCheck Tire Pressure System on
page 5-59. There are times when you will have to reset
(calibrate) the Check Tire Pressure System. See
Check Tire Pressure System on page 5-59.RESET:This button, used along with other buttons, will
reset system functions.
ENG/MET (English/Metric):Use this button to change
the display between English and metric units.
DIC messages can be displayed in one of three
languages: English, French or Spanish. The language
of the display is set by pressing both the FUEL
INFO and RESET buttons for ®ve seconds. As the
buttons are held, each language will be displayed for
three seconds. Release the FUEL INFO and RESET
buttons when the desired language is displayed. All DIC
messages will now be in the selected language.
Language selection can also be done through the DIC
Personal Choice Programming. See ªLanguage
Selectionº later in this section.
3-48

DIC Warnings and Messages
Other messages or warnings may appear in the DIC
display. For Canadian drivers, in addition to the
DIC message your DIC will display EXP with a number
after it which re¯ects the following messages:
EXP
(Export ID) Warning Message
20 TURN SIGNAL STILL ON?
24 TRUNK AJAR
25 WINDSHIELD WASHER FLUID LOW
27 BATTERY SAVER ACTIVE
36 ENGINE OIL LOW ± CHECK LEVEL
40 THEFT ATTEMPT DETECTED
54 SERVICE STABILITY SYSTEM
55 STABILITY SYSTEM ACTIVE
61 GAS CAP LOOSE ± CHECK CAP
81 CHANGE ENGINE OIL SOON
91
TRACTION CONTROL SYSTEM ACTIVE
102 CHECK CHARGE SYSTEM
139 DOOR AJAR
144 CHECK TIRE PRESSURES
The EXP codes are used to make translation from
English to other languages easier.
Pressing any of the DIC control buttons will remove
the messages or warnings from the DIC display.SERVICE STABILITY SYSTEM ± 54:If you ever see
the SERVICE STABILITY SYSTEM message, it
means there may be a problem with your stability
enhancement system. If you see this message, try to
reset the system (stop; turn off the engine; then start the
engine again). If the SERVICE STABILITY SYSTEM
message still comes on, it means there is a problem.
You should see your dealer for service. Reduce
your speed and drive accordingly.
STABILITY SYSTEM ACTIVE ± 55:You may see the
STABILITY SYSTEM ACTIVE message on the Driver
Information Center. It means that an advanced,
computer-controlled system has come on to help your
vehicle continue to go in the direction in which you're
steering. This stability enhancement system activates
when the computer senses that your vehicle is just
starting to spin, as it might if you hit a patch of ice or
other slippery spot on the road. When the system is on,
you may hear a noise or feel a vibration in the brake
pedal. This is normal.
When the STABILITY SYSTEM ACTIVE message is on,
you should continue to steer in the direction you want
to go. The system is designed to help you in bad
weather or other difficult driving situations by making the
most of whatever road conditions will permit. If the
STABILITY SYSTEM ACTIVE message comes on, you'll
know that something has caused your vehicle to start
to spin, so you should consider slowing down.
3-49

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
you 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.
SAE 10W-30 is the viscosity grade recommended for
your vehicle. However, you can use SAE 5W-30 if
it's going to be colder than 60ÉF (16ÉC) before your next
oil change. When it is very cold, colder than 0ÉF
(-18ÉC), you should use an SAE 5W-30 oil. These
numbers on an oil container show its viscosity,
or thickness. Do not use other viscosity grade oils, such
as SAE 10W-40 or SAE 20W-50 under any conditions.
5-15

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 (Vehicles
Without the GM Oil Life System)
If any one of these is true for you, use the short trip/city
maintenance schedule:
·Most trips are less than 5 miles (8 km). This is
particularly important when outside temperatures
are below freezing.
·Most trips include extensive idling (such as frequent
driving in stop-and-go traffic).
·You frequently tow a trailer or use a carrier on top
of your vehicle.
·The vehicle is used for delivery service, police, taxi
or other commercial application.
Driving under these conditions causes engine oil to
break down sooner. If any one of these is true for your
vehicle, then you need to change your oil and ®lter
every 3,000 miles (5 000 km) or 3 months Ð whichever
occurs ®rst.
If none of them is true, use the long trip/highway
maintenance schedule. Change the oil and ®lter every
7,500 miles (12 500 km) or 12 months Ð whichever
occurs ®rst. Driving a vehicle with a fully warmed engine
under highway conditions will cause engine oil to
break down slower.
When to Change Engine Oil (Vehicles
with the GM Oil Life System)
If so equipped, 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.
5-16

When the system has calculated that oil life has been
diminished, it will indicate that an oil change is
necessary. A CHANGE ENGINE OIL SOON message
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. However, your engine oil and
®lter must be changed at least once a year and at
this time the system must be reset. Your dealer has
GM-trained service people who will perform this
work using genuine GM parts and reset the system. It is
also important to check your oil regularly and keep it
at the proper level.
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.
How to Reset the Oil Life System
The GM Oil Life System calculates when to change
your engine oil and ®lter based on vehicle use. Anytime
your oil is changed, reset the system so it can
calculate when the next oil change is required. If a
situation occurs where you change your oil prior to a
CHANGE ENGINE OIL SOON message being
turned on, reset the system.To reset the Oil Life System, do the following:
1. Display the OIL LIFE INDEX on the DIC.
2. Press and hold the RESET button on the DIC for
more than ®ve seconds. The oil life will change
to 100%.
What to Do with Used Oil
Used engine oil contains certain elements that may be
unhealthy for your skin and could even cause cancer.
Don't let used oil stay on your skin for very long. Clean
your skin and nails with soap and water, or a good
hand cleaner. Wash or properly dispose of clothing or
rags containing used engine oil. See the manufacturer's
warnings about the use and disposal of oil products.
Used oil can be a threat to the environment. If you
change your own oil, be sure to drain all the oil from the
®lter before disposal. Never dispose of oil by putting it
in the trash, pouring it on the ground, into sewers, or into
streams or bodies of water. Instead, recycle it by
taking it to a place that collects used oil. If you have a
problem properly disposing of your used oil, ask
your dealer, a service station or a local recycling center
for help.
5-17

Engine Air Cleaner/Filter
SeeEngine Compartment Overview on page 5-12for
the location of the engine air cleaner/®lter.
When to Inspect the Engine Air
Cleaner/Filter
Inspect the air cleaner/®lter every 15,000 miles
(25 000 km) and replace every 30,000 miles (50
000 km). If you are driving in dusty/dirty conditions,
inspect the ®lter at each engine oil change.
How to Inspect the Engine Air
Cleaner/Filter
To inspect the air cleaner/®lter remove the ®lter from the
vehicle and lightly shake the ®lter to release loose
dust and dirt. If the ®lter remains ªcakedº with dirt, a new
®lter is required.To inspect or replace the engine air cleaner/®lter do the
following:
1. Lift the latches on the engine air cleaner/®lter
housing cover.
5-18