2012 BUICK LACROSSE cruise control

Black plate (1,1)Buick LaCrosse Owner Manual - 2012
2012 Buick LaCrosse Owner ManualM
In Brief. . . . . . . . . . . . . . . . . . . . . . . . 1-1
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information . . . . . . . . 1-4
Vehicle Features . . . . . . . . . . . . . 1-17
eAssist Features . . . . . . . . . . . . . 1-22
Performance and
Maintenance . . . . . . . . . . . . . . . . 1-25
Keys, Doors, and Windows . . . . . . . . . . . . . . . . . . . . 2-1
Keys and Locks . . . . . . . . . . . . . . . 2-2
Doors . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Vehicle Security . . . . . . . . . . . . . . 2-14
Exterior Mirrors . . . . . . . . . . . . . . . 2-17
Interior Mirrors . . . . . . . . . . . . . . . . 2-18
Windows . . . . . . . . . . . . . . . . . . . . . 2-19
Roof . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Seats and Restraints . . . . . . . . . 3-1
Head Restraints . . . . . . . . . . . . . . . 3-2
Front Seats . . . . . . . . . . . . . . . . . . . . 3-4
Rear Seats . . . . . . . . . . . . . . . . . . . 3-11
Safety Belts . . . . . . . . . . . . . . . . . . 3-13
Airbag System . . . . . . . . . . . . . . . . 3-22
Child Restraints . . . . . . . . . . . . . . 3-36 Storage
. . . . . . . . . . . . . . . . . . . . . . . 4-1
Storage Compartments . . . . . . . . 4-1
Additional Storage Features . . . 4-2
Instruments and Controls . . . . 5-1
Controls . . . . . . . . . . . . . . . . . . . . . . . 5-2
Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . . 5-9
Information Displays . . . . . . . . . . 5-27
Vehicle Messages . . . . . . . . . . . . 5-35
Vehicle Personalization . . . . . . . 5-43
Universal Remote System . . . . 5-49
Lighting . . . . . . . . . . . . . . . . . . . . . . . 6-1
Exterior Lighting . . . . . . . . . . . . . . . 6-1
Interior Lighting . . . . . . . . . . . . . . . . 6-5
Lighting Features . . . . . . . . . . . . . . 6-7
Infotainment System . . . . . . . . . 7-1
Introduction . . . . . . . . . . . . . . . . . . . . 7-1
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 7-18
Audio Players . . . . . . . . . . . . . . . . 7-28
Rear Seat Infotainment . . . . . . . 7-47
Phone . . . . . . . . . . . . . . . . . . . . . . . . 7-57
Trademarks and License Agreements . . . . . . . . . . . . . . . . . 7-80 Climate Controls
. . . . . . . . . . . . . 8-1
Climate Control Systems . . . . . . 8-1
Air Vents . . . . . . . . . . . . . . . . . . . . . 8-10
Maintenance . . . . . . . . . . . . . . . . . . 8-11
Driving and Operating . . . . . . . . 9-1
Driving Information . . . . . . . . . . . . . 9-2
Starting and Operating . . . . . . . 9-17
Engine Exhaust . . . . . . . . . . . . . . 9-30
Automatic Transmission . . . . . . 9-31
Drive Systems . . . . . . . . . . . . . . . . 9-34
Brakes . . . . . . . . . . . . . . . . . . . . . . . 9-35
Ride Control Systems . . . . . . . . 9-38
Cruise Control . . . . . . . . . . . . . . . . 9-42
Object Detection Systems . . . . 9-44
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 9-52
Towing . . . . . . . . . . . . . . . . . . . . . . . 9-57
Conversions and Add-Ons . . . 9-63
Vehicle Care . . . . . . . . . . . . . . . . . 10-1
General Information . . . . . . . . . . 10-2
Vehicle Checks . . . . . . . . . . . . . . . 10-4
Headlamp Aiming . . . . . . . . . . . 10-30
Bulb Replacement . . . . . . . . . . 10-33
Electrical System . . . . . . . . . . . . 10-37
Wheels and Tires . . . . . . . . . . . 10-47

Black plate (5,1)Buick LaCrosse 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
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 (1,1)Buick LaCrosse Owner Manual - 2012
In Brief 1-1
In Brief
Instrument Panel
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information
Initial Drive Information . . . . . . . . 1-4
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . 1-4
Remote Vehicle Start . . . . . . . . . 1-4
Door Locks . . . . . . . . . . . . . . . . . . . 1-5
Trunk Release . . . . . . . . . . . . . . . . 1-6
Windows . . . . . . . . . . . . . . . . . . . . . . 1-6
Seat Adjustment . . . . . . . . . . . . . . 1-6
Memory Features . . . . . . . . . . . . . 1-8
Heated and Ventilated Seats . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Head Restraint Adjustment . . . . 1-9
Safety Belts . . . . . . . . . . . . . . . . . . . 1-9
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . 1-10
Mirror Adjustment . . . . . . . . . . . . 1-10 Steering Wheel
Adjustment . . . . . . . . . . . . . . . . . 1-11
Interior Lighting . . . . . . . . . . . . . . 1-11
Exterior Lighting . . . . . . . . . . . . . 1-12
Windshield Wiper/Washer . . . . 1-13
Climate Controls . . . . . . . . . . . . . 1-14
Transmission . . . . . . . . . . . . . . . . 1-16Vehicle Features
Radio(s) . . . . . . . . . . . . . . . . . . . . . 1-17
Satellite Radio . . . . . . . . . . . . . . . 1-17
Portable Audio Devices . . . . . . 1-18
Bluetooth
®. . . . . . . . . . . . . . . . . . . 1-18
Steering Wheel Controls . . . . . 1-18
Cruise Control . . . . . . . . . . . . . . . 1-19
Navigation System . . . . . . . . . . . 1-19
Driver Information Center (DIC) . . . . . . . . . . . . . . . 1-20
Vehicle Personalization . . . . . . 1-20
Ultrasonic Parking Assist . . . . 1-20
Power Outlets . . . . . . . . . . . . . . . 1-21
Universal Remote System . . . 1-21
Sunroof . . . . . . . . . . . . . . . . . . . . . . 1-21
eAssist Features
eAssist®Overview . . . . . . . . . . . 1-22
High Voltage Safety Information . . . . . . . . . . . . . . . . . 1-23
Driver Efficiency Gauge . . . . . . 1-23
Automatic Engine Start/Stop Feature . . . . . . . . . . . . . . . . . . . . . 1-24
Regenerative Braking . . . . . . . . 1-24
Battery . . . . . . . . . . . . . . . . . . . . . . . 1-24
Service . . . . . . . . . . . . . . . . . . . . . . 1-25
Performance and Maintenance
Traction Control System (TCS) . . . . . . . . . . . . . . 1-25
StabiliTrak
®System . . . . . . . . . 1-25
Tire Pressure Monitor . . . . . . . . 1-26
Tire Sealant and Compressor Kit . . . . . . . . . . . . . 1-26
Engine Oil Life System . . . . . . 1-27
Driving for Better Fuel Economy . . . . . . . . . . . . . . . . . . . 1-27
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . 1-27
OnStar
®. . . . . . . . . . . . . . . . . . . . . 1-28

Black plate (3,1)Buick LaCrosse Owner Manual - 2012
In Brief 1-3
A.Exterior Lamp Controls on
page 6‑1.
Fog Lamps on page 6‑5
(If Equipped).
Instrument Panel Illumination
Control on page 6‑5.
Head-Up Display (HUD) on
page 5‑31 (If Equipped).
B. Air Vents on page 8‑10.
C. Turn and Lane‐Change Lever. See Turn and Lane-Change
Signals on page 6‑4.
Driver Information Center
Buttons. See Driver Information
Center (DIC) on page 5‑27.
D. Instrument Cluster on
page 5‑10.
Driver Information Center
Display. See Driver Information
Center (DIC) on page 5‑27.
E. Windshield Wiper/Washer on
page 5‑3.
F. Infotainment Display Screen. G.
Infotainment on page 7‑1.
H. Front Storage on page 4‑1.
I. Data Link Connector (DLC) (Out of View). See Malfunction
Indicator Lamp on page 5‑17.
J. Cruise Control on page 9‑42.
K. Steering Wheel Adjustment on
page 5‑2.
L. Horn on page 5‑3.
M. Steering Wheel Controls on
page 5‑2 (If Equipped).
N. Ignition Positions (Key Access)
on page 9‑18 orIgnition
Positions (Keyless Access) on
page 9‑20.
O. Heated and Ventilated Front
Seats on page 3‑10
(If Equipped).
P. Automatic Climate Control
System on page 8‑1
(If Equipped).
Dual Automatic Climate Control
System on page 8‑5
(If Equipped). Q.
Parking Brake on page 9‑36.
R. Shift Lever Position Indicator. See Automatic Transmission on
page 9‑31.
S. Shift Lever. See Shifting Into
Park on page 9‑27.
T. Traction Control System (TCS)
on page 9‑38.
StabiliTrak
®System on
page 9‑40 (If Equipped).
Ultrasonic Parking Assist on
page 9‑44.
Rear Window Sunshade on
page 2‑21 (If Equipped).
U. Power Door Locks on
page 2‑12.
Hazard Warning Flashers on
page 6‑4.
Passenger Sensing System on
page 3‑29.

Black plate (19,1)Buick LaCrosse Owner Manual - 2012
In Brief 1-19
_SRC^:Turn_or^to select a
radio band or audio source.
Turn
_or^to select the next or
previous favorite radio station, CD,
or MP3 track.
Press SRC to change between
radio and CD or DVD.
+
x−: Press + to increase or −to
decrease the volume.
For more information, see Steering
Wheel Controls on page 5‑2.
Cruise Control
5: Press to turn the cruise control
system on and off.
*: Press to disengage cruise
control without erasing the set
speed from memory.
RES/+: Move the thumbwheel up to
make the vehicle resume to a
previously set speed or to
accelerate. SET/−
:Move the thumbwheel
down toward SET/- to set a speed
and activate cruise control, or to
make the vehicle decelerate.
See Cruise Control on page 9‑42.
Navigation System
If the vehicle has a navigation
system, there is a separate
navigation system manual that
includes information on the radio,
audio players, and navigation
system.
The navigation system provides
detailed maps of most major
freeways and roads. After a
destination has been set, the
system provides turn-by-turn
instructions for reaching the
destination. In addition, the system
can help locate a variety of points of
interest (POIs), such as banks,
airports, restaurants, and more.
See the navigation system manual
for more information.

Black plate (27,1)Buick LaCrosse Owner Manual - 2012
In Brief 1-27
Engine Oil Life System
The engine oil life system calculates
engine oil life based on vehicle use
and displays the CHANGE ENGINE
OIL SOON message when it is time
to change the engine oil and filter.
The oil life system should be reset
to 100% only following an oil
change.
Resetting the Oil Life System
1. Turn the ignition to ON/RUN withthe engine off.
2. Press the DIC MENU button on the turn signal lever to enter the
Vehicle Information Menu. Use
the thumbwheel to scroll through
the menu items until you reach
REMAINING OIL LIFE.
3. Press the SET/CLR button to reset the oil life at 100%.
4. Turn the ignition to LOCK/OFF.
See Engine Oil Life System on
page 10‑12.
Driving for Better Fuel
Economy
Driving habits can affect fuel
mileage. Here are some driving tips
to get the best fuel economy
possible.
.Avoid fast starts and accelerate
smoothly.
.Brake gradually and avoid
abrupt stops.
.Avoid idling the engine for long
periods of time.
.When road and weather
conditions are appropriate, use
cruise control.
.Always follow posted speed
limits or drive more slowly when
conditions require.
.Keep vehicle tires properly
inflated.
.Combine several trips into a
single trip.
.Replace the vehicle's tires with
the same TPC Spec number
molded into the tire's sidewall
near the size.
.Follow recommended scheduled
maintenance.
Roadside Assistance
Program
U.S.: 1-800-252-1112
TTY Users (U.S.): 1-888-889-2438
Canada: 1-800-268-6800
Mexico: 01-800-466-0818
As the owner of a new Buick, you
are automatically enrolled in the
Roadside Assistance program.
See Roadside Assistance Program
(U.S. and Canada) on page 13‑7 or
Roadside Assistance Program
(Mexico) on page 13‑10 for more
information.

Black plate (1,1)Buick LaCrosse Owner Manual - 2012
Instruments and Controls 5-1
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 5-2
Steering Wheel Controls . . . . . . 5-2
Heated Steering Wheel . . . . . . . 5-3
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Windshield Wiper/Washer . . . . . 5-3
Compass . . . . . . . . . . . . . . . . . . . . . 5-5
Clock (Radio with CD andTouchscreen) . . . . . . . . . . . . . . . . 5-5
Power Outlets . . . . . . . . . . . . . . . . . 5-7
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . 5-9
Instrument Cluster . . . . . . . . . . . 5-10
Speedometer . . . . . . . . . . . . . . . . 5-12
Odometer . . . . . . . . . . . . . . . . . . . . 5-12
Tachometer . . . . . . . . . . . . . . . . . . 5-12
Fuel Gauge . . . . . . . . . . . . . . . . . . 5-12
Driver Efficiency Gauge . . . . . . 5-13
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 5-14
Safety Belt Reminders . . . . . . . 5-15 Airbag Readiness Light . . . . . . 5-16
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . 5-16
Charging System Light . . . . . . 5-17
Malfunction Indicator Lamp . . . . . . . . . . . . . 5-17
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . 5-20
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . 5-21
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . 5-21
Traction Off Light . . . . . . . . . . . . 5-22
StabiliTrak
®OFF Light . . . . . . . 5-22
Traction Control System (TCS)/StabiliTrak
®Light . . . . 5-23
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . 5-24
Tire Pressure Light . . . . . . . . . . 5-24
Engine Oil Pressure Light . . . . 5-25
Low Fuel Warning Light . . . . . . 5-25
Security Light . . . . . . . . . . . . . . . . 5-26
High-Beam On Light . . . . . . . . . 5-26
Front Fog Lamp Light . . . . . . . . 5-26
Lamps On Reminder . . . . . . . . . 5-26
Cruise Control Light . . . . . . . . . 5-27
Door Ajar Light . . . . . . . . . . . . . . 5-27
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . 5-27
Head-Up Display (HUD) . . . . . 5-31
Vehicle Messages
Vehicle Messages . . . . . . . . . . . 5-35
Battery Voltage and Charging Messages . . . . . . . . . . . . . . . . . . 5-35
Brake System Messages . . . . 5-36
Compass Messages . . . . . . . . . 5-36
Cruise Control Messages . . . . 5-36
Door Ajar Messages . . . . . . . . . 5-37
Engine Cooling System Messages . . . . . . . . . . . . . . . . . . 5-37
Engine Oil Messages . . . . . . . . 5-38
Engine Power Messages . . . . 5-38
Fuel System Messages . . . . . . 5-39
Key and Lock Messages . . . . . 5-39
Lamp Messages . . . . . . . . . . . . . 5-39
Object Detection System Messages . . . . . . . . . . . . . . . . . . 5-39
Ride Control System Messages . . . . . . . . . . . . . . . . . . 5-40
Anti-theft Alarm System Messages . . . . . . . . . . . . . . . . . . 5-41
Starting the Vehicle Messages . . . . . . . . . . . . . . . . . . 5-41

Black plate (27,1)Buick LaCrosse Owner Manual - 2012
Instruments and Controls 5-27
Cruise Control Light
This light is white whenever the
cruise control is set and turns green
when the cruise control is active.
The light goes out when the cruise
control is turned off. SeeCruise
Control on page 9‑42 for more
information.
For vehicles with the uplevel or
eAssist cluster, this telltale will be
shown in the Driver Information
Center (DIC) screen.
Door Ajar Light
This light comes on in the Driver
Information Center (DIC) when a
door is open or not securely latched.
Before driving, check that all doors
are properly closed.
Information Displays
Driver Information
Center (DIC)
The Driver Information Center (DIC)
displays information about the
vehicle. It also displays warning
messages if a system problem is
detected. See Vehicle Messages on
page 5‑35 for more information. All
messages appear in the DIC display
located in the center of the
instrument panel cluster.
On some models, the DIC may
show warning lights or indicators in
the top portion of the display. See
Warning Lights, Gauges, and
Indicators on page 5‑9 for more
information.
The vehicle may also have features
that can be customized through the
controls on the radio. See Vehicle
Personalization on page 5‑43 for
more information.