warning lights BUICK LACROSSE 2009 Owner's Manual

Seats and Restraint System............................. 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-7
Safety Belts
.............................................. 1-8
Child Restraints
.......................................1-29
Airbag System
.........................................1-53
Restraint System Check
............................1-68
Features and Controls..................................... 2-1
Keys
........................................................ 2-2
Doors and Locks
....................................... 2-9
Windows
.................................................2-14
Theft-Deterrent Systems
............................2-16
Starting and Operating Your Vehicle
...........2-21
Mirrors
....................................................2-35
Object Detection Systems
..........................2-37
OnStar
®System
......................................2-39
Universal Home Remote System
................2-43
Storage Areas
.........................................2-47
Sunroof
..................................................2-48
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-21
Warning Lights, Gages, and Indicators
........3-30
Driver Information Center (DIC)
..................3-47
Audio System(s)
.......................................3-82Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and the Vehicle
....... 4-2
Towing
...................................................4-26
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under
the Hood
.............................................5-10
Headlamp Aiming
.....................................5-46
Bulb Replacement
....................................5-49
Windshield Replacement
...........................5-53
Windshield Wiper Blade Replacement
.........5-53
Tires
......................................................5-54
Appearance Care
.....................................5-90
Vehicle Identication
.................................5-98
Electrical System
......................................5-99
Capacities and Specications
...................5-106
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-15
Vehicle Data Recording and Privacy
...........7-17
Index................................................................ 1
2009 Buick LaCrosse Owner ManualM

The steering can bind with the wheels turned off center.
If this happens, move the steering wheel from left to
right while turning the key to ACC/ACCESSORY. If this
doesn’t work, then the vehicle needs service.
B (ACC/ACCESSORY):This is the position in which
you can operate the radio and windshield wipers
while the engine is off. To use ACC/ACCESSORY, turn
the key clockwise.
C (ON/RUN):This position can be used to operate the
electrical accessories and to display some instrument
panel cluster warning and indicator lights. The
switch stays in this position when the engine is running.
If you leave the key in the ACC/ACCESSORY or
ON/RUN position with the engine off, the battery could
be drained. You may not be able to start the vehicle
if the battery is allowed to drain for an extended period
of time.D (START):This is the position that starts the engine.
When the engine starts, release the key. The ignition
switch returns to ON/RUN for driving.
A warning chime will sound and the Driver Information
Center (DIC) will display DRIVER’S DOOR AJAR
when the driver door is opened, the ignition is in
ACC/ACCESSORY or LOCK/OFF and the key is in the
ignition. SeeDIC Warnings and Messages on
page 3-56for more information.
Retained Accessory Power (RAP)
These vehicle accessories can be used for up to
10 minutes after the engine is turned off:
Audio System
Power Windows
Power to these accessories continues to work for
10 minutes or until a door is opened.
2-22

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................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.................3-18
Rear Assist Handle Reading Lamps................3-18Electric Power Management...........................3-18
Battery Run-Down Protection..........................3-19
Accessory Power Outlet(s).............................3-20
Ashtray(s) and Cigarette Lighter......................3-21
Climate Controls............................................3-21
Climate Control System.................................3-21
Dual Automatic Climate Control System...........3-25
Outlet Adjustment.........................................3-28
Passenger Compartment Air Filter...................3-29
Warning Lights, Gages, and Indicators............3-30
Instrument Panel Cluster................................3-31
Speedometer and Odometer...........................3-32
Tachometer.................................................3-32
Safety Belt Reminders...................................3-32
Airbag Readiness Light..................................3-33
Passenger Airbag Status Indicator...................3-34
Charging System Light..................................3-35
Brake System Warning Light..........................3-35
Antilock Brake System (ABS) Warning Light........3-36
Traction Control System (TCS)
Warning Light...........................................3-37
Enhanced Traction System
Warning Light...........................................3-37
Engine Coolant Temperature Warning Light........3-38
Engine Coolant Temperature Gage..................3-38
Section 3 Instrument Panel
3-1

2(Headlamps):Turn the control to this position to
turn on the headlamps together with the following lamps
listed below.
A warning chime will sound if the driver’s door is
opened when the ignition switch is turned to LOCK/OFF
or ACC/ACCESSORY and the headlamps or parking
lamps are on.
Parking Lamps
Taillamps
License Plate Lamps
Instrument Panel Lights
#(Fog lamps) (If Equipped):Push the fog lamps
button to turn them on and off. SeeFog 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. DRL 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

9. Remove the old air lter.
10. Install a new passenger compartment air lter.
SeeMaintenance Replacement Parts on page 6-13
for the type of lter to use. Make sure it slides
under the compartment retainers.
11. Reverse Steps 1 through 8.
For best climate control performance, re-installation of a
clean air lter is required.
Warning Lights, Gages, and
Indicators
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 prevent injury.
Warning lights come on when there may be or is a
problem with one of the vehicle’s functions. Some
warning lights come on briey when the engine is
started to indicate they are working.
Gages can indicate when there may be or is a problem
with one of the vehicle’s functions. Often gages and
warning lights work together to indicate a problem with
the vehicle.
When one of the warning lights comes on and stays on
while driving, or when one of the gages shows there may
be a problem, check the section that explains what to do.
Follow this manual’s advice. Waiting to do repairs can be
costly and even dangerous.
3-30

Light (cont.)
Tire Pressure..............................................3-39
Traction Control System (TCS)
Warning..................................................3-37
Trunk Ajar..................................................3-45
Lighting
Delayed Entry.............................................3-17
Delayed Exit...............................................3-17
Entry.........................................................3-16
Perimeter...................................................3-18
Theater Dimming.........................................3-17
Lights
Exterior Lamps............................................3-13
Flash-to-Pass............................................... 3-8
High/Low Beam Changer................................ 3-8
Interior Lamps.............................................3-16
Loading Your Vehicle.......................................4-20
Lockout Protection..........................................2-11
Locks
Automatic Door Lock....................................2-10
Delayed Locking..........................................2-10
Door ........................................................... 2-9
Lockout Protection.......................................2-11
Power Door .................................................. 2-9
Programmable Automatic Door Unlock............2-10
Rear Door Security Locks.............................2-11
Loss of Control...............................................4-12
Low Coolant Warning Light..............................3-39Low Fuel Warning Light...................................3-47
Low Washer Fluid Warning Light.......................3-45
Lower Anchors and Tethers for Children.............1-41
Lumbar
Power Controls............................................. 1-3
M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-8
At Least Once a Month.................................. 6-9
At Least Once a Year.................................... 6-9
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-15
Maintenance Replacement Parts....................6-13
Maintenance Requirements............................. 6-2
Owner Checks and Services........................... 6-8
Recommended Fluids and Lubricants.............6-11
Scheduled Maintenance................................. 6-4
Using.......................................................... 6-3
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Lamp...............................3-40
Message
DIC Warnings and Messages........................3-56
8

Vehicle Personalization
DIC ...........................................................3-74
Vehicle, Remote Start....................................... 2-7
Ventilation Adjustment......................................3-28
Visors...........................................................2-16
W
Warning Lights, Gages, and Indicators...............3-30
Warnings
DIC Warnings and Messages........................3-56
Hazard Warning Flashers............................... 3-6
Safety and Symbols......................................... iii
Washer Fluid, Low Warning Light......................3-45
Wheels
Alignment and Tire Balance..........................5-74
Different Size..............................................5-71
Replacement...............................................5-74
Where to Put the Restraint...............................1-40
Windows.......................................................2-14
Power ........................................................2-15Windshield
Replacement...............................................5-53
Washer........................................................ 3-9
Washer Fluid..............................................5-35
Wiper Blade Replacement.............................5-53
Wiper Blades, Cleaning................................5-95
Wiper Fuses...............................................5-99
Wipers......................................................... 3-9
Winter Driving................................................4-17
X
XM Radio Messages.......................................3-98
XM™ Satellite Radio Antenna System..............3-113
Y
Your Vehicle and the Environment....................... 6-2
14