2013 BUICK LACROSSE air conditioning

Black plate (4,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
iv Introduction
{WARNING
These mean there is something
that could hurt you or other
people.
Notice: This means there is
something that could result in
property or vehicle damage. This
would not be covered by the
vehicle's warranty.
A circle with a slash through it is a
safety symbol which means “Do
Not,” “Do not do this,” or“Do not let
this happen.”
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 specific
component, control, message,
gauge, or indicator.
M: This symbol is shown when
you need to see your owner manual
for additional instructions or
information.
*: This symbol is shown when
you need to see a service manual
for additional instructions or
information. Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. For more
information on the symbol, refer to
the Index.
9:
Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
%:Audio Steering Wheel Controls
or OnStar®
$: Brake System Warning Light
":Charging System
I:Cruise Control
B: Engine Coolant Temperature
O:Exterior Lamps
g:First Responder
#:Fog Lamps
.: Fuel Gauge
+:Fuses
3: Headlamp High/Low-Beam
Changer

Black plate (13,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
In Brief 1-13
Climate Controls
The heating, cooling, and ventilation for the vehicle can be controlled with
these systems.
Dual Automatic Climate Control System for Non-eAssist Vehicles
1. Power
2. Driver Temperature Control
3. Defrost
4. Fan Control
5. Air Delivery Mode Control
6. Recirculation/Automatic Recirculation 7. Passenger Temperature Control
8. AUTO (Automatic Operation)
9. Rear Window Defogger
10. Heated Steering Wheel
11. Air Conditioning
12. ZONE

Black plate (14,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
1-14 In Brief
Dual Automatic Climate Control System for eAssist Vehicles
1. Power
2. Driver Temperature Control
3. Defrost
4. Fan Control
5. Air Delivery Mode Control
6. Recirculation/Automatic Recirculation
7. Passenger Temperature Control 8. AUTO (Automatic Operation)
9. Rear Window Defogger
10. Eco Air Conditioning
11. Comfort Air Conditioning
12. ZONE
See
Dual Automatic Climate Control
System on page 8‑1.
Transmission
Automatic Transmission
Driver Shift Control (DSC)
Driver Shift Control (DSC) allows
shifting an automatic transmission
similar to a manual transmission.
DSC can be enabled through the
shift lever. See Manual Mode on
page 9‑29.

Black plate (19,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
In Brief 1-19
Sunroof
On vehicles with a sunroof, the
switches are located on the
overhead console.
The ignition must be in ON/RUN or
ACC/ACCESSORY, or when
Retained Accessory Power (RAP) is
active. SeeRetained Accessory
Power (RAP) on page 9‑24.
Vent: Press the rear of the
switch (2) to the first detent to vent
the sunroof. Press the front of the
switch (1) to the second detent to
close the sunroof. Express-open/Express-close:
To
express-open the sunroof, fully
press and release the rear of the
switch (2). To express-close, fully
press and release the front of the
switch (1). To stop the sunroof
partway, press either switch a
second time.
The sunshade opens automatically
with the sunroof.
To express-open the sunshade, fully
press and release the rear of the
switch (3). To stop the sunshade
partway, press the switch a second
time. To express-close, fully press
and release the front of the
switch (4). To stop the sunshade
partway, press the switch a
second time.
See Sunroof on page 2‑19.
eAssist Features
eAssist®Overview
If the vehicle has eAssist, there are
several additional features which
contribute to increased efficiency.
Vehicles with eAssist have an
automatic engine start/stop feature.
This feature saves fuel by shutting
the engine off when the vehicle is
stopped. When the engine shuts off
automatically, all the accessories
will continue to operate normally. In
very hot or cold conditions, the
engine will only shut off
automatically part of the time. See
Starting the Engine on page 9‑19.
There are two air conditioning
settings available. The comfort
setting maximizes cabin comfort.
The eco setting maximizes
efficiency allowing more frequent,
and longer engine stops than the
comfort setting. See Dual Automatic
Climate Control System on
page 8‑1.

Black plate (34,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
5-34 Instruments and Controls
Cruise Control Messages
CRUISE SET TO XXX
This message displays when the
cruise control is set and shows the
speed it was set to. SeeCruise
Control on page 9‑37.
Door Ajar Messages
DRIVER DOOR OPEN
This message will display when the
driver door is open. Close the door
completely.
HOOD OPEN
This message will display when the
hood is open. Close the hood
completely.
LEFT REAR DOOR OPEN
This message will display when the
driver side rear door is open. Close
the door completely.
PASSENGER DOOR OPEN
This message will display when the
front passenger door is open. Close
the door completely.
RIGHT REAR DOOR OPEN
This message will display when the
passenger side rear door is open.
Close the door completely.
TRUNK OPEN
This message will display when the
trunk is open. Close the trunk
completely.
Engine Cooling System
Messages
A/C OFF DUE TO HIGH
ENGINE TEMP
This message displays when the
engine coolant becomes hotter than
the normal operating temperature.
To avoid added strain on a hot
engine, the air conditioning
compressor automatically turns off.
When the coolant temperature returns to normal, the air
conditioning compressor turns back
on. You can continue to drive the
vehicle.
If this message continues to appear,
have the system repaired by your
dealer as soon as possible to avoid
damage to the engine.
COOLANT LEVEL LOW ADD
COOLANT
This message will display if the
coolant is low. See
Engine Coolant
on page 10‑18.
ENGINE OVERHEATED —
IDLE ENGINE
This message displays when the
engine coolant temperature is too
hot. Stop and allow the vehicle to
idle until it cools down.
ENGINE OVERHEATED —
STOP ENGINE
This message displays and a
continuous chime sounds if the
engine cooling system reaches
unsafe temperatures for operation.

Black plate (40,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
5-40 Instruments and Controls
The following list of menu items may
be available:
.Climate and Air Quality
.Comfort and Convenience
.Collision/Detection Systems
.Language
.Lighting
.Power Door Locks
.Remote Lock/Unlock/Start
.Return to Factory Settings
Turn the Multifunction knob to
highlight the menu. Press SELECT
to select it. Each of the menus is
detailed in the following information.
Climate and Air Quality
Select the Climate and Air Quality
menu and the following may be
displayed:
.Auto Fan Speed
.Air Quality Sensor
.Auto Heated Seats
.Air Conditioning Mode
.Remote Start Auto Heated Seats
.Remote Start Cooled Seats
.Auto Defog
.Auto Rear Defog
Auto Fan Speed
This will allow you to select the
automatic fan speed. It can be
adjusted to run lower or higher than
normal.
Press SELECT when Auto Fan
Speed is highlighted to open the
menu. Turn the Multifunction knob
to highlight High, Medium, or Low.
Press SELECT to confirm the
selection. Press
/BACK to move to
the last menu.
Air Quality Sensor
This will allow you to select whether
the system will operate at high or
low sensitivity. Only vehicles with
the dual zone climate control will
have this option. Press SELECT when Air Quality
Sensor is highlighted to open the
menu. Turn the Multifunction knob
to highlight High or Low. Press
SELECT to confirm the selection.
Press
/BACK to move to the
last menu.
Auto Heated Seats
If equipped and turned on, this
feature will automatically activate
heated seats at the level required by
the interior temperature. The auto
heated seats can be turned off by
using the heated seat buttons on
the climate control panel.
Press SELECT when Auto Heated
Seats is highlighted to open the
menu. Turn the Multifunction knob
to highlight On or Off. Press
SELECT to confirm the selection.
Press
/BACK to move to the
last menu.

Black plate (41,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
Instruments and Controls 5-41
Air Conditioning Mode
This allows selection of automatic
start of the air conditioning upon
vehicle start. Selecting On indicates
the air conditioning will be on when
the vehicle is started. Selecting Off
turns the air conditioning off each
time the vehicle is started. Last
Setting will resume the last setting
when the vehicle was shut off.
Press SELECT when Air
Conditioning Mode is highlighted to
open the menu. Turn the
Multifunction knob to highlight Off,
On, or Last Setting. Press SELECT
to confirm the selection. Press
/
BACK to move to the last menu.
Remote Start Auto Heated Seats
If equipped and turned on, this
feature will turn the heated seats on
when using remote start on
cold days.
Press SELECT when Remote Start
Auto Heated Seats is highlighted.
Turn the Multifunction knob to selectOn or Off. Press SELECT to confirm
the selection. Press
/BACK to
move to the last menu.
Remote Start Cooled Seats
If equipped and turned on, this
feature will turn the cooled seats on
when using remote start on
warm days.
Press SELECT when Remote Start
Cooled Seats is highlighted. Turn
the Multifunction knob to select On
or Off. Press SELECT to confirm the
selection. Press
/BACK to move to
the last menu.
Auto Defog
This will allow you to turn the auto
defog on or off. Only vehicles with
the dual zone climate control will
have this option.
Press SELECT when Auto Defog is
highlighted to open the menu. Turn
the Multifunction knob to highlight
On or Off. Press SELECT to confirm
the selection. Press
/BACK to
move to the last menu. Auto Rear Defog
If equipped, this will allow you to
turn the auto rear defog on or off.
This feature will automatically turn
on the rear defogger when it is cold
outside.
Press SELECT when Auto Rear
Defog is highlighted to open the
menu. Turn the Multifunction knob
to highlight On or Off. Press
SELECT to confirm the selection.
Press
/BACK to move to the
last menu.
Comfort and Convenience
Select the Comfort and
Convenience menu and the
following will be displayed:
.Chime Volume
.Driver Seat Easy Exit
.Park Tilt Mirrors

Black plate (1,1)Buick LaCrosse Owner Manual - 2013 - crc - 9/7/12
Climate Controls 8-1
Climate Controls
Climate Control Systems
Dual Automatic Climate ControlSystem . . . . . . . . . . . . . . . . . . . . . . 8-1
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . . 8-6
Maintenance
Air Intake . . . . . . . . . . . . . . . . . . . . . 8-7
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
Service . . . . . . . . . . . . . . . . . . . . . . . 8-7
Climate Control Systems
Dual Automatic Climate Control System
For vehicles with this system, it controls the heating, cooling, and ventilation.
Non-eAssist Vehicles
1. Power
2. Driver Temperature Control
3. Defrost
4. Fan Control
5. Air Delivery Mode Control
6. Recirculation/Automatic Recirculation 7. Passenger Temperature Control
8. AUTO (Automatic Operation)
9. Rear Window Defogger
10. Heated Steering Wheel
11. Air Conditioning
12. ZONE