2008 BUICK LACROSSE climate control

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-8
Safety Belts
.............................................. 1-9
Child Restraints
.......................................1-29
Airbag System
.........................................1-54
Restraint System Check
............................1-68
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
......................................2-11
Windows
.................................................2-17
Theft-Deterrent Systems
............................2-20
Starting and Operating Your Vehicle
...........2-24
Mirrors
....................................................2-38
Object Detection Systems
..........................2-41
OnStar
®System
......................................2-43
Universal Home Remote System
................2-47
Storage Areas
.........................................2-52
Sunroof
..................................................2-54
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-20
Warning Lights, Gages, and Indicators
........3-30
Driver Information Center (DIC)
..................3-49
Audio System(s)
.......................................3-84Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-27
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-10
Headlamp Aiming
.....................................5-56
Bulb Replacement
....................................5-58
Windshield Replacement
...........................5-62
Windshield Wiper Blade Replacement
.........5-62
Tires
......................................................5-63
Appearance Care
.....................................5-99
Vehicle Identication
...............................5-107
Electrical System
....................................5-108
Capacities and Specications
...................5-116
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
2008 Buick LaCrosse Owner ManualM

Power Lumbar
On seats with power lumbar, the control is located on
the outboard side of the seat cushion.
Press the front of the control to increase lumbar support.
Press the rear of the control to decrease lumbar support.
Keep in mind that as your seating position changes,
as it may during long trips, so should the position of
your lumbar support. Adjust the seat as needed.
Heated Seats
On vehicles with this
feature, the buttons are
located on the climate
control panel.
Press the button once to activate the high heat setting.
Both indicator lights on the button will come on. Press the
button again to select the lower temperature setting. Only
one indicator light will come on. Press the button a third
time to turn the heat off.
This feature only works when the ignition is on.
1-3

Remote Vehicle Start
Your vehicle may have a remote starting feature that
allows you to start the engine from outside the vehicle.
It may also start the vehicle’s heating or air conditioning
systems and rear window defogger. When the remote
start system is active and the vehicle has an automatic
climate control system, it will automatically regulate
the inside temperature. Normal operation of these
systems will return after the ignition key is turned to
ON/RUN.
Laws in some communities may restrict the use of
remote starters. For example, some laws may require a
person using remote start to have the vehicle in view
when doing so. Check local regulations for any
requirements on remote starting of vehicles.
Do not use the remote start feature if your vehicle is
low on fuel. Your vehicle may run out of fuel.
There are other conditions which can affect the
performance of the transmitter, seeRemote Keyless
Entry (RKE) System on page 2-4for additional
information.
/(Remote Start):This button will be on the RKE
transmitter if you have remote start.
To start the vehicle using the remote start feature:
1. Aim the transmitter at the vehicle.
2. Press and release the transmitter’s lock button,
then immediately press and hold the transmitter’s
remote start button for about four seconds or
until the vehicle’s turn signal lamps ash. The doors
will lock.
When the vehicle starts, the parking lamps turn on
and remain on while the engine is running.
The remote start feature provides two separate starts
per ignition cycle, each with 10 minutes of engine
running time, or one start with a time extension. The
rst start must expire or be canceled to get two separate
10 minute starts.
If it is the rst remote start since the vehicle has been
driven, repeat the previous steps, while the engine is still
running, to extend the engine running time by 10 minutes
from the time you repeat the steps for remote starting.
The remote start running time can be extended one time
and only after the rst remote start.
2-8

Trunk
{CAUTION:
It can be dangerous to drive with the trunk lid
open because carbon monoxide (CO) gas can
come into your vehicle. You cannot see or
smell CO. It can cause unconsciousness and
even death. If you must drive with the trunk lid
open or if electrical wiring or other cable
connections must pass through the seal
between the body and the trunk lid:
Make sure all other windows are shut.
Turn the fan on your heating or cooling
system to its highest speed and select the
control setting that will force outside air
into your vehicle. See Climate Control
System.
If you have air outlets on or under the
instrument panel, open them all the way.
SeeEngine Exhaust on page 2-37.
Opening the Trunk
To open the trunk from the outside, use the Remote
Keyless Entry (RKE) transmitter. SeeRemote Keyless
Entry (RKE) System Operation on page 2-5for more
information.
The ignition must be off, or the transmission must be in
PARK (P) to open the trunk.
2-14

Engine Exhaust
{CAUTION:
Engine exhaust can kill. It contains the gas
carbon monoxide (CO), which you cannot see
or smell. It can cause unconsciousness and
death.
You might have exhaust coming in if:
The exhaust system sounds strange or
different.
Your vehicle gets rusty underneath.
Your vehicle was damaged in a collision.
Your vehicle was damaged when driving
over high points on the road or over road
debris.
Repairs were not done correctly.
Your vehicle or the exhaust system has
been modied improperly.
If you ever suspect exhaust is coming into
your vehicle:
Drive it only with all the windows down to
blow out any CO; and
Have your vehicle xed immediately.
Running the Vehicle While Parked
It is better not to park with the engine running. But if you
ever have to, here are some things to know.
{CAUTION:
Idling the engine with the climate control
system off could allow dangerous exhaust into
your vehicle. See the earlier caution under
Engine Exhaust on page 2-37.
Also, idling in a closed-in place can let deadly
carbon monoxide (CO) into your vehicle even if
the climate control fan is at the highest setting.
One place this can happen is a garage.
Exhaust — with CO — can come in easily.
NEVER park in a garage with the engine
running.
Another closed-in place can be a blizzard. See
Winter Driving on page 4-17.
2-37

Outside Power Mirrors
The controls for the
outside power mirrors, are
located on the driver’s
door armrest.
Move the selector switch located below the four-way
control pad to the left or right to choose either the
driver’s side or passenger’s side mirror. To adjust a
mirror, use the arrows located on the four-way control
pad to move the mirror in the desired direction.
Adjust each outside mirror so that a little of the vehicle
and the area behind it can be seen while sitting in a
comfortable driving position. Keep the selector switch in
the center position when not adjusting either outside
mirror.
Outside Power Heated Mirrors
For information on the operation of the outside power
mirrors seeOutside Power Mirrors on page 2-40.
If the vehicle has heated mirrors, they will warm up to
melt ice and snow, and remove condensation when the
defroster is turned on. SeeDual Automatic Climate
Control System on page 3-24orClimate Control System
on page 3-20.
Outside Convex Mirror
{CAUTION:
A convex mirror can make things (like other
vehicles) look farther away than they really are.
If you cut too sharply into the right lane, you
could hit a vehicle on your right. Check your
inside mirror or glance over your shoulder
before changing lanes.
The passenger side mirror is convex. A convex mirror’s
surface is curved so more can be seen from the
driver seat. It also makes things, like other vehicles,
look farther away than they really are.
2-40

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.........................................3-17
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).............................3-19
Ashtray(s) and Cigarette Lighter......................3-20
Climate Controls............................................3-20
Climate Control System.................................3-20
Dual Automatic Climate Control System...........3-24
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..................................3-36
Brake System Warning Light..........................3-37
Antilock Brake System
Warning Light...........................................3-38
Traction Control System (TCS)
Warning Light...........................................3-38
Enhanced Traction System
Warning Light...........................................3-39
Engine Coolant Temperature Warning Light......3-40
Engine Coolant Temperature Gage..................3-40
Section 3 Instrument Panel
3-1

The main components of the instrument panel are the following:
A. Air Outlets. SeeOutlet Adjustment on page 3-28.
B. Interior Lamps Control. SeeInterior Lamps on
page 3-16.
C. Exterior Lamps Control. SeeExterior Lamps on
page 3-13. Fog Lamp Control. SeeFog Lamps on
page 3-15.
D. Turn Signal/Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 3-7.
E. Cruise Controls. SeeCruise Control on page 3-10.
F. Instrument Panel Cluster. SeeInstrument Panel
Cluster on page 3-31.
G. DIC Buttons (If Equipped) and Hazard Warning
Flasher Button. SeeDIC Operation and Displays on
page 3-50andHazard Warning Flashers on
page 3-6.
H. Passenger Airbag Status Indicator. SeePassenger
Airbag Status Indicator on page 3-34.
I. Audio System Controls. SeeAudio System(s) on
page 3-84.J. Hood Release. SeeHood Release on page 5-11.
K. Parking Brake. SeeParking Brake on page 2-32.
L. Tilt Lever (If Equipped) and Telescoping Column
Lever (If Equipped). SeeTilt Wheel on page 3-6.
M. Horn. SeeHorn on page 3-6.
N. Audio Steering Wheel Controls (If Equipped). See
Audio Steering Wheel Controls on page 3-102.
O. Shift Lever. SeeShifting Into PARK (P) on
page 2-33.
P. Accessory Power Outlet. SeeAccessory Power
Outlet(s) on page 3-19.
Q. Climate Controls. SeeClimate Control System on
page 3-20orDual Automatic Climate Control System
on page 3-24.
R. Glove Box. SeeGlove Box on page 2-52.
3-5