2006 BUICK LACROSSE warning lights

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-8
Safety Belts
.............................................1-10
Child Restraints
.......................................1-30
Airbag System
.........................................1-56
Restraint System Check
............................1-71
Features and Controls..................................... 2-1
Keys
........................................................ 2-2
Doors and Locks
......................................2-10
Windows
.................................................2-16
Theft-Deterrent Systems
............................2-18
Starting and Operating Your Vehicle
...........2-22
Mirrors
....................................................2-36
OnStar
®System
......................................2-38
Universal Home Remote System
................2-40
Storage Areas
.........................................2-44
Sunroof
..................................................2-47
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-22
Warning Lights, Gages, and Indicators
........3-31
Driver Information Center (DIC)
..................3-50
Audio System(s)
.......................................3-84Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-36
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-10
Headlamp Aiming
.....................................5-48
Bulb Replacement
....................................5-51
Windshield Replacement
...........................5-56
Windshield Wiper Blade Replacement
.........5-56
Tires
......................................................5-57
Appearance Care
.....................................5-84
Vehicle Identication
.................................5-92
Electrical System
......................................5-93
Capacities and Specications
.....................5-98
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance and Information.............. 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-14
Index................................................................ 1
2006 Buick LaCrosse Owner ManualM

Vehicle Damage Warnings
Also, in this manual you will nd these notices:
Notice:These mean there is something that could
damage your vehicle.
A notice tells about something that can damage the
vehicle. Many times, this damage would not be covered
by your vehicle’s warranty, and it could be costly. But
the notice will tell what to do to help avoid the damage.
When you read other manuals, you might see
CAUTION and NOTICE warnings in different colors
or in different words.
There are also warning labels on the vehicle. They use
the same words, CAUTION or NOTICE.
Vehicle Symbols
The vehicle has components and labels that use symbols
instead of text. Symbols are shown along with the text
describing the operation or information relating to a
specic component, control, message, gage, or indicator.
If you need help guring out a specic name of a
component, gage, or indicator, reference the
following topics:
Seats and Restraint Systems in Section 1
Features and Controls in Section 2
Instrument Panel Overview in Section 3
Climate Controls in Section 3
Warning Lights, Gages, and Indicators in Section 3
Audio System(s) in Section 3
Engine Compartment Overview in Section 5
iv

Ignition Positions
With the ignition key in the ignition, the key can be
turned to four different positions:
Notice:Using a tool to force the key from the
ignition switch could cause damage or break the
key. Use the correct key and turn the key only with
your hand. Make sure the key is in all the way. If
none of this works, then your vehicle needs service.
A (OFF):This is the only position in which the ignition
key can be inserted or removed. This position locks
the ignition and transaxle. It is a theft-deterrent feature.B (ACCESSORY):This position lets the radio and
windshield wipers operate while the engine is off.
To use ACCESSORY, turn the key clockwise.
C (RUN):This position is where the key returns to after
the vehicle is started. This position displays some of the
warning and indicator lights.
D (START):This position starts the engine.
A warning chime will sound and the Driver Information
Center (DIC) will display DRIVER’S DOOR OPEN when
the driver’s door is opened if the ignition is in OFF,
ACCESSORY and the key is in the ignition. SeeDIC
Warnings and Messages on page 3-59for more
information.
Retained Accessory Power (RAP)
If the vehicle has Retained Accessory Power (RAP),
certain features will continue to operate for up to
10 minutes after the ignition key is turned to OFF
unless a door is opened.
2-23

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-6
Horn.............................................................3-6
Tilt Wheel.....................................................3-6
Turn Signal/Multifunction Lever.........................3-7
Turn and Lane-Change Signals........................3-8
Headlamp High/Low-Beam Changer..................3-8
Flash-to-Pass.................................................3-8
Windshield Wipers..........................................3-9
Windshield Washer.........................................3-9
Cruise Control..............................................3-10
Exterior Lamps.............................................3-13
Daytime Running Lamps (DRL)/
Automatic Headlamp System........................3-14
Fog Lamps..................................................3-15
Exterior Lighting Battery Saver........................3-15
Interior Lamps..............................................3-16
Instrument Panel Brightness...........................3-16
Courtesy Lamps...........................................3-16
Entry Lighting...............................................3-16
Delayed Entry Lighting...................................3-17
Theater Dimming..........................................3-17
Delayed Exit Lighting.....................................3-17
Perimeter Lighting.........................................3-18
Overhead Console Reading Lamps.................3-18Rear Assist Handle Reading Lamps................3-18
Battery Run-Down Protection..........................3-18
Ultrasonic Rear Parking Assist (URPA)............3-18
Accessory Power Outlet(s).............................3-20
Ashtray(s) and Cigarette Lighter......................3-21
Climate Controls............................................3-22
Climate Control System.................................3-22
Dual Automatic Climate Control System...........3-25
Outlet Adjustment.........................................3-29
Passenger Compartment Air Filter...................3-30
Steering Wheel Climate Controls.....................3-31
Warning Lights, Gages, and Indicators............3-31
Instrument Panel Cluster................................3-32
Speedometer and Odometer...........................3-33
Tachometer.................................................3-33
Safety Belt Reminder Light.............................3-33
Passenger Safety Belt Reminder Light.............3-34
Airbag Readiness Light..................................3-34
Passenger Airbag Status Indicator...................3-35
Charging System Light..................................3-37
Brake System Warning Light..........................3-38
Anti-Lock Brake System Warning Light.............3-39
Traction Control System (TCS)
Warning Light...........................................3-40
Engine Coolant Temperature Warning Light......3-40
Section 3 Instrument Panel
3-1

<(Parking Lamps):Turn the control to this position
to turn on the parking lamps together with the
following:
Taillamps
License Plate Lamps
Sidemarker Lamps
Instrument Panel Lights
2(Headlamps):Turn the control to this position to
turn your headlamps on, together with the previously
listed lamps and lights.
A warning chime will sound if the driver’s door is
opened when the ignition switch is turned to OFF
or ACCESSORY and the headlamps are on.
-(Foglamps):If your vehicle is equipped with fog
lamps, press this button to turn them on and off. See
Fog Lamps on page 3-15for additional information.
Daytime Running Lamps (DRL)/
Automatic Headlamp System
Daytime Running Lamps (DRL) can make it easier
for others to see the front of your vehicle during the day.
DRL can be helpful in many different driving conditions,
but they can be especially helpful in the short periods
after dawn and before sunset. Daytime running lamps
are required to function at all times on all vehicles rst
sold in Canada.
A light sensor on top of the instrument panel makes the
DRL work, so be sure it is not covered.
The DRL system will make the low-beam headlamps
come on at reduced brightness when the following
conditions are met:
The ignition is on.
The exterior lamps control is off.
The parking brake is released.
While the DRL are on, only the vehicle’s low-beam
headlamps will be on at reduced brightness. The turn
signal, taillamps, sidemarker and other lamps will not be
on. The instrument panel will not be lit up either.
3-14

Steering Wheel Climate Controls
If your vehicle has this
feature, you can control
the driver’s temperature
setting by using the
control located on your
steering wheel.
yz(Temperature):Press the up arrow to increase
or the down arrow decrease the temperature inside
your vehicle.
Warning Lights, Gages, and
Indicators
This part describes the warning lights and gages that may
be on the vehicle. The pictures will help you locate them.
Warning lights and gages can signal that something is
wrong before it becomes serious enough to cause an
expensive repair or replacement. Paying attention to the
warning lights and gages could also save you or others
from injury.
Warning lights come on when there may be or is a
problem with one of the vehicle’s functions. As you will
see in the details on the next few pages, some warning
lights come on briey when you start the engine just to let
you know they are working. If you are familiar with this
section, you should not be alarmed when this happens.
Gages can indicate when there may be or is a problem
with one of your vehicle’s functions. Often gages and
warning lights work together to let you know when there
is a problem with your vehicle.
When one of the warning lights comes on and stays
on when you are driving, or when one of the gages
shows there may be a problem, check the section that
tells you what to do about it. Please follow this manual’s
advice. Waiting to do repairs can be costly – and even
dangerous. So please get to know the warning lights and
gages. They are a big help.
3-31

Engine Coolant
The cooling system in the vehicle is lled with
DEX-COOL®engine coolant. This coolant is designed
to remain in the vehicle for ve years or 150,000 miles
(240 000 km), whichever occurs rst, if only DEX-COOL
®
extended life coolant is added.
The following explains the cooling system and how
to add coolant when it is low. If there is a problem with
engine overheating or if coolant needs to be added
to the radiator, seeEngine Overheating on page 5-27.
A 50/50 mixture of clean, drinkable water and
DEX-COOL
®engine coolant will:
Give freezing protection down to−34°F (−37°C).
Give boiling protection up to 265°F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as
they should.Notice:Using coolant other than DEX-COOL
®may
cause premature engine, heater core, or radiator
corrosion. In addition, the engine coolant may
require changing sooner, at the rst maintenance
service after each 30,000 miles (50 000 km) or
24 months, whichever occurs rst. Any repairs
would not be covered by your warranty. Always use
DEX-COOL
®(silicate-free) coolant in your vehicle.
What to Use
Use a mixture of one-half clean, drinkable water and
one-half DEX-COOL®engine coolant which will not
damage aluminum parts. If this coolant mixture is used,
nothing else needs to be added.
5-24

W
Warning Lights, Gages and Indicators................3-31
Warnings
DIC Warnings and Messages........................3-59
Hazard Warning Flashers............................... 3-6
Other Warning Devices.................................. 3-6
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Washer Fluid, Low Warning Light......................3-47
Wheels
Alignment and Tire Balance..........................5-70
Different Size..............................................5-68
Replacement...............................................5-70
Where to Put the Restraint...............................1-40
Windows.......................................................2-16
Power........................................................2-17Windshield
Replacement...............................................5-56
Washer........................................................ 3-9
Washer Fluid..............................................5-38
Wiper Blade Replacement.............................5-56
Wiper Blades, Cleaning................................5-88
Wiper Fuses...............................................5-93
Wipers......................................................... 3-9
Winter Driving................................................4-26
X
XM™ Satellite Radio Antenna System..............3-130
Y
Your Vehicle and the Environment....................... 6-2
14