air conditioning BUICK REGAL 2012 Owner's Manual

Black plate (5,1)Buick Regal Owner Manual - 2012
Introduction v
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
#:Fog Lamps
.: Fuel Gauge
+:Fuses
3: Headlamp High/Low-Beam
Changer
(: Heated Steering Wheel
j:LATCH System Child
Restraints
*: Malfunction Indicator Lamp
::Oil Pressure
}:Power
/:Remote Vehicle Start
>:Safety Belt Reminders
7:Tire Pressure Monitor
d:Traction Control/StabiliTrak®
M:Windshield Washer Fluid

Black plate (13,1)Buick Regal Owner Manual - 2012
In Brief 1-13
Climate Controls
The heating, cooling, and ventilation for the vehicle can be controlled with
these systems.
Climate Control System
A. Air Conditioning
B. Temperature Control
C. Air Delivery Modes
D. Fan Control E. Defrost
F. Recirculation
G. Rear Defogger

Black plate (14,1)Buick Regal Owner Manual - 2012
1-14 In Brief
Dual Automatic Climate Control System for Non‐eAssist Vehicles
A. Air Conditioning
B. Driver and Passenger Temperature Controls
C. Heated Seats
D. Air Delivery Modes
E. Climate Display F. Defrost
G. Recirculation
H. Fan Controls
I. AUTO (Automatic Operation)
J. Rear Defogger

Black plate (15,1)Buick Regal Owner Manual - 2012
In Brief 1-15
Dual Automatic Climate Control System for eAssist Vehicles
A. Eco/Comfort Air Conditioning
B. Driver and Passenger Temperature Controls
C. Heated Seats
D. Air Delivery Modes
E. Climate Display
F. Defrost G. Recirculation
H. Fan Controls
I. AUTO (Automatic Operation)
J. Rear Defogger
See
Climate Control Systems on
page 8‑1 (If Equipped) or Dual
Automatic Climate Control System
on page 8‑3 (If Equipped).
Transmission
Automatic Transmission
P:Park
R: Reverse
N: Neutral
D: Drive

Black plate (21,1)Buick Regal Owner Manual - 2012
In Brief 1-21
Sunroof
For vehicles with a sunroof, the
sunroof only operates when the
ignition is in ON/RUN or ACC/
ACCESSORY or in Retained
Accessory Power (RAP). See
Retained Accessory Power (RAP)
on page 9‑24for more information.
To open or close the sunroof, press
switch (A) to the first detent position. To express open or close the
sunroof with the safety function
enabled, press the open or close
sunroof switch (A) to the second
detent position and release. To stop
the movement, press the switch
again.
To automatically tilt or close the
sunroof, press the tilt open or close
sunroof switch (B).
If an object is in the path of the
sunroof while it is closing, the
anti-pinch feature will detect the
object and stop the sunroof. The
sunroof will then return to the
full-open or vent position.
The sunroof glass panel cannot be
opened or closed if the vehicle has
an electrical failure.
See
Sunroof on page 2‑19 for more
information.
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 8‑3.

Black plate (31,1)Buick Regal Owner Manual - 2012
Instruments and Controls 5-31
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 temperaturereturns 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 10‑19.
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. Stop and turn off the vehicle as
soon as it is safe to do so to avoid
severe damage. This message
clears when the engine has cooled
to a safe operating temperature.
HIGH COOLANT
TEMPERATURE
This message displays if the coolant
temperature is hot. See
Engine
Overheating on page 10‑22.
Engine Oil Messages
CHANGE ENGINE OIL SOON
This message displays when the
engine oil needs to be changed.
When you change the engine oil, be
sure to reset the Oil Life System.
See Engine Oil Life System on
page 10‑13 andDriver Information
Center (DIC) on page 5‑25 for
information on how to reset the
system. See Engine Oil on
page 10‑11 andMaintenance
Schedule on page 11‑3 for more
information.

Black plate (36,1)Buick Regal Owner Manual - 2012
5-36 Instruments and Controls
3. Press the center of theMultifunction knob to select the
Vehicle Settings menu.
The following list of menu items will
be available:
.Climate and Air Quality
.Comfort and Convenience
.Collision/Detection Systems
.Languages
.Lighting
.Power Door Locks
.Remote Lock/Unlock/Start
.Return to Factory Settings
Turn the Multifunction knob to
highlight the menu. Press the knob
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 will be
displayed:
.Auto Fan Speed (Auto Climate
System Only)
.Remote Start Heated Seats
.Auto Area Zone Temp (Auto
Climate System Only)
.Auto Defog (Auto Climate
System Only)
.Auto Rear Defog
Auto Fan Speed
This allows selection of the
automatic fan speed to run lower or
higher than normal.
Press the Multifunction knob when
Auto Fan Speed is highlighted to
open the menu. Turn the knob to
highlight High, Medium, or Low.
Press the knob to confirm the
selection and move back to the
last menu. Remote Start Heated Seats
When on, this feature will turn the
heated seats on when using remote
start on cold days.
Press the Multifunction knob when
Remote Start Heated Seats is
highlighted. Turn the knob to
highlight On or Off. Press the knob
to confirm the selection and go back
to the last menu.
Auto Area Zone Temp
This allows selection of the number
of zones of temperature control
upon vehicle start. Selecting Single
Zone automatically resets the
passenger temperature setting the
same as the driver's for every
vehicle start. The air conditioning
system will operate using only the
driver's setting until the passenger
temperature setting is changed.
Selecting Dual Zone or Last Setting
will keep the passenger temperature
adjustment separate from the
driver's setting all the time.

Black plate (1,1)Buick Regal Owner Manual - 2012
Climate Controls 8-1
Climate Controls
Climate Control Systems
Climate Control Systems . . . . . . 8-1
Dual Automatic Climate ControlSystem . . . . . . . . . . . . . . . . . . . . . . 8-3
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . . 8-7
Maintenance
Air Intake . . . . . . . . . . . . . . . . . . . . . 8-8
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . . . 8-8
Climate Control Systems
The heating, cooling, and ventilation for the vehicle can be controlled with
this system.
A. Air Conditioning
B. Temperature Control
C. Air Delivery Modes
D. Fan Control
E. Defrost
F. Recirculation
G. Rear Defogger Temperature Control:
Turn the
knob clockwise or counterclockwise
to increase or decrease the
temperature setting.
Fan Control: Turn the knob
clockwise or counterclockwise to
increase or decrease the fan speed.

Black plate (2,1)Buick Regal Owner Manual - 2012
8-2 Climate Controls
Air Delivery Modes:Press[,Y,
or
8to change the direction of the
airflow. An indicator light comes on
in the selected mode button.
[(Floor): Air is directed to the
floor outlets.
Y(Vent): Air is directed to the
instrument panel outlets.
8(Upper): Air is directed to the
windshield outlets.
0(Defrost): Press to clear the
windshield of fog or frost more
quickly. Air is directed to the
windshield.
#(Air Conditioning): Press to
turn the air conditioning on or off.
If the fan is turned off or the outside
temperature falls below freezing, the
air conditioner will not run.
h(Recirculation): Press to turn
on recirculation. An indicator light
comes on. Air is recirculated to
quickly cool the inside of the vehicle
or prevent outside air and odors
from entering.
To improve fuel efficiency and to
cool the vehicle faster, recirculation
may be automatically selected in
warm weather. The recirculation
light will not come on. Press
hto
select recirculation; press it again to
select outside air.
Rear Window Defogger
=(Rear Window Defogger):
Press to turn the rear window
defogger on or off.
The rear window defogger turns
off automatically after about
10 minutes. If turned on again, it
runs for about five minutes before
turning off. At higher speeds, the
rear window defogger may stay on
continuously. For vehicles with heated outside
rearview mirrors, they turn on with
the rear window defogger and help
to clear fog or frost from the surface
of the mirror. See
Heated Mirrors on
page 2‑15.
Notice: Do not try to clear frost
or other material from the inside
of the front windshield and rear
window with a razor blade or
anything else that is sharp. This
may damage the rear window
defogger grid and affect your
radio's ability to pick up stations
clearly. The repairs would not be
covered by your warranty.

Black plate (3,1)Buick Regal Owner Manual - 2012
Climate Controls 8-3
Dual Automatic Climate Control System
The heating, cooling, and ventilation for the vehicle can be controlled with
this system.
Dual Automatic Climate Control System, Non‐eAssist Vehicles
A. Air Conditioning
B. Driver and Passenger Temperature Controls
C. Heated Seats
D. Air Delivery Modes
E. Climate Display F. Defrost
G. Recirculation
H. Fan Controls
I. AUTO (Automatic Operation)
J. Rear Defogger