2004 BUICK LESABRE CLUSTER

Battery Load Management
The battery load management feature is designed to
monitor the vehicle’s electrical load and determine when
the battery is in a heavy discharge condition. During
times of high electrical loading, the engine may idle at a
higher RPM setting than normal to make sure the
battery charges. High electrical loads may occur when
several of the following are on: headlamps, high beams,
rear window defogger, fan at high speed, heated
seats (if equipped) and engine cooling fans.
If your vehicle’s battery remains in a heavy discharge
condition for a long period of time, the fan, rear
defogger, heated seats and heated mirrors will be
disabled and the DIC will display BATTERY SAVER
ACTIVE. This can happen either under long periods of
idling or low speed driving with high electrical loading,
or in the event of a charging system fault.
Head-Up Display (HUD)
{CAUTION:
If the HUD image is too bright, or too high in
your eld of view, it may take you more time to
see things you need to see when it is dark
outside. Be sure to keep the HUD image dim
and placed low in your eld of view.
If your vehicle is equipped with the Head-Up
Display (HUD), you can see some of the driver
information that appears on your instrument panel
cluster.
The information may be displayed in English or metric
units and appears as a reection in the windshield.
The HUD consists of the following information:
Speedometer Reading
Turn Signal Indicators
High-Beam Headlamp Indicator
Check Gages Message
3-20

The HUD shows these images when they are lighted on
the instrument panel cluster.
Be sure to continue scanning your displays, controls
and driving environment just as you would in a vehicle
without HUD. If you never look at your instrument
panel cluster, you may not see something important,
such as a warning light.
Notice:If you try to use the HUD image as a
parking aid, you may misjudge the distance and
damage your vehicle. Do not use the HUD image as
a parking aid.The HUD controls are located on the instrument panel
to the left of the steering wheel.
1. Start your engine and slide the HUD dimmer lever
all the way up.
The brightness of the HUD image is determined by
an internal photo-cell, and where you have the
HUD dimmer control set.
2. Adjust the seat to your driving position. Press the
image height adjuster switch to raise the image as
far as possible.
3-21

Instrument Panel Cluster
Your instrument panel cluster is designed to let you know at a glance how your vehicle is running. You’ll know how
fast you’re going, how much fuel you’re using, and many other things you’ll need to drive safely and economically.
Your vehicle is equipped with one of these instrument panel clusters, which includes indicator warning lights
and gages that are explained on the following pages.
Standard Cluster (United States version shown, Canada similar)
3-33

Cluster With Tachometer (United States version shown, Canada similar)
3-34

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 Light
If your vehicle has the
standard instrument panel
cluster, this light will
come on if there is a
problem with your vehicle’s
engine oil pressure.
If your vehicle has the optional gage cluster, you can
read your oil pressure directly from the Driver
Information Center (DIC). SeeDIC Controls and
Displays on page 3-46.The oil pressure light will come on briey when you turn
your key to RUN. That’s just a check to be sure the
light works. This is normal and doesn’t show a problem.
If it doesn’t come on and then go off, be sure to have
it xed so it will be there to warn you if there is a
problem.
When this lightcomeson andstayson, and a chime
sounds, it means oil isn’t going through the engine
properly. The oil could be low, or there might be some
other oil problem. See your dealer for service.
{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:Lack of proper engine oil maintenance may
damage the engine. The repairs would not be
covered by your warranty. Always follow the
maintenance schedule in this manual for changing
engine oil.
3-43

A. Engine Compartment Fuse Block. See “Engine
Compartment Fuse Block” underFuses and Circuit
Breakers on page 5-92.
B. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on page 5-36.
C. Remote Positive (+) Terminal. SeeJump Starting on
page 5-42.
D. Engine Coolant Recovery Tank. SeeCooling System
on page 5-28.
E. Radiator Pressure Cap. SeeRadiator Pressure Cap
on page 5-26.
F. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 5-13.
G. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 5-13.
H. Engine Coolant Air Bleed Valve. See “How to Add
Coolant to the Radiator” underCooling System
on page 5-28.
I. Automatic Transaxle Fluid Dipstick. See “Checking
the Fluid Level” underAutomatic Transaxle Fluid
on page 5-21.
J. Brake Master Cylinder Reservoir. See “Brake Fluid”
underBrakes on page 5-37.
K. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-18.Engine Oil
If the ENGINE OIL LOW
CHECK LEVEL DIC
message appears on the
instrument cluster, it
means you need to check
your engine oil level
right away. For more
information, seeDIC
Warnings and Messages
on page 3-49.
You should check your engine oil level regularly; this is
an added reminder.
Checking Engine Oil
It is 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 handle is a yellow loop. See
Engine Compartment Overview on page 5-12for
the location of the engine oil dipstick.
Turn off the engine and give the oil several minutes to
drain back into the oil pan. If you do not, the oil dipstick
might not show the actual level.
5-13

Radiator Pressure Cap
Notice:The radiator cap on your vehicle 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 overow tube on the radiator
ller neck.
SeeEngine Compartment Overview on page 5-12for
more information on location.
Engine Overheating
You will nd a warning light about a hot engine as well
as an engine coolant temperature gage on your
vehicle’s instrument panel cluster.
If Steam Is Coming From Your Engine
5-26

Hitches..........................................................4-42
HomeLink®Transmitter....................................2-38
HomeLink®Transmitter, Programming................2-39
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn............................................................... 3-7
How to Add Coolant to the Coolant
Recovery Tank............................................5-30
How to Add Coolant to the Radiator..................5-31
How to Add Fluid............................................5-23
How to Check........................................5-21, 5-65
How to Check Power Steering Fluid..................5-36
How to Inspect the Engine Air Cleaner/Filter.......5-18
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-11
Hydroplaning..................................................4-19
I
If No Steam Is Coming From Your Engine..........5-27
If Steam Is Coming From Your Engine...............5-26
If the Light Is Flashing.....................................3-41
If the Light Is On Steady.................................3-42
If You Are Stuck in Sand, Mud, Ice or Snow.......4-30
If You Do Decide To Pull A Trailer.....................4-40
If You’re Caught in a Blizzard...........................4-28
Ignition Positions.............................................2-22
Ignition Transaxle Lock Check..........................6-20Inadvertent Power Battery Saver.......................3-19
Infants and Young Children, Restraints...............1-29
Ination - Tire Pressure...................................5-65
Inspection
Brake System.............................................6-22
Engine Cooling System................................6-22
Exhaust System..........................................6-21
Fuel System...............................................6-22
Part C - Periodic Maintenance.......................6-21
Steering, Suspension and Front Drive Axle
Boot and Seal.........................................6-21
Throttle System...........................................6-22
Instrument Panel
Cluster.......................................................3-33
Overview..................................................... 3-4
Instrument Panel Brightness.............................3-17
Interior Lamps................................................3-17
J
Jump Starting.................................................5-42
K
Key Lock Cylinders Service..............................6-18
Key Reminder Warning....................................2-23
Keyless Entry System....................................... 2-5
Keys............................................................... 2-3
7