2011 BUICK LACROSSE immobilizer

Black plate (1,1)Buick LaCrosse Owner Manual - 2011
Keys, Doors and Windows 2-1
Keys, Doors and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . 2-3
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . 2-4
Remote Vehicle Start . . . . . . . . . 2-8
Door Locks . . . . . . . . . . . . . . . . . . 2-10
Power Door Locks . . . . . . . . . . . 2-11
Delayed Locking . . . . . . . . . . . . . 2-12
Safety Locks . . . . . . . . . . . . . . . . . 2-12
Doors
Trunk . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . 2-14
Anti-Theft Alarm System . . . . . 2-14
Immobilizer . . . . . . . . . . . . . . . . . . 2-14
Immobilizer Operation (Key Access) . . . . . . . . . . . . . . . 2-14
Immobilizer Operation (Keyless Access) . . . . . . . . . . . 2-15
Exterior Mirrors
Power Mirrors . . . . . . . . . . . . . . . . 2-16
Folding Mirrors . . . . . . . . . . . . . . . 2-17
Heated Mirrors . . . . . . . . . . . . . . . 2-17
Park Tilt Mirrors . . . . . . . . . . . . . . 2-17
Interior Mirrors
Manual Rearview Mirror . . . . . . 2-18
Windows
Windows . . . . . . . . . . . . . . . . . . . . . 2-18
Power Windows . . . . . . . . . . . . . 2-19
Sun Visors . . . . . . . . . . . . . . . . . . . 2-20
Rear Window Sunshade . . . . . 2-20
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . 2-21

Black plate (14,1)Buick LaCrosse Owner Manual - 2011
2-14 Keys, Doors and Windows
Vehicle Security
This vehicle has theft-deterrent
features; however, they do not make
it impossible to steal.
Anti-Theft Alarm System
This vehicle has an anti-theft alarm
system.
Arming the System
To arm the system, pressQon the
RKE transmitter.
The alarm automatically arms after
about 30 seconds. The security
light, located on the instrument
panel, flashes.
Press
Von the RKE transmitter to
open the trunk without setting off the
alarm. The system rearms when the
trunk is closed.
Disarming the System
To disarm the system, do one of the
following:
.PressKon the RKE transmitter.
.Approach the vehicle with
the RKE transmitter (keyless
access).
.Start the engine.
The alarm automatically disarms.
How to Detect a Tamper
Condition
IfKis pressed and the horn
sounds, an attempted break-in
has occurred while the system
was armed.
If the alarm has been activated, the
THEFT ATTEMPTED message will
appear on the DIC. See Key and
Lock Messages on page 5‑36 for
additional information.
Immobilizer
See Radio Frequency Statement on
page 13‑20 for information
regarding Part 15 of the Federal
Communications Commission
(FCC) rules and Industry Canada
Standards RSS-210/220/310.
Immobilizer Operation
(Key Access)
This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed.
The vehicle is automatically
immobilized when the key is
removed from the ignition.
The system is automatically
disarmed when the vehicle is
started with the correct key.

Black plate (15,1)Buick LaCrosse Owner Manual - 2011
Keys, Doors and Windows 2-15
The key uses a transponder that
matches an immobilizer control unit
in the vehicle and automatically
disarms the system. Only the
correct key starts the vehicle.
The vehicle may not start if the
key is damaged.
The security light, located in the
instrument panel cluster, comes on
if there is a problem with arming
or disarming the theft-deterrent
system.
When trying to start the vehicle, the
security light comes on briefly when
the ignition is turned on.If the engine does not start and the
security light stays on, there is a
problem with the system. Turn the
ignition off and try again.
If the engine still does not start, and
the key appears to be undamaged
or the light continues to stay on,
try another ignition key.
If the engine still does not start
with the other key, the vehicle needs
service. If the vehicle does start,
the first key may be damaged.
See your dealer who can service
the theft-deterrent system and
have a new key made.
Do not leave the key or device
that disarms or deactivates the
theft-deterrent system in the vehicle.
Immobilizer Operation
(Keyless Access)
This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed.
The vehicle is automatically
immobilized when the transmitter
leaves the vehicle.
The immobilization system is
disarmed when the ignition button
is pushed in and a valid transmitter
is found in the vehicle.
The security light, located in the
instrument panel cluster, comes on
if there is a problem with arming
or disarming the theft-deterrent
system.

Black plate (16,1)Buick LaCrosse Owner Manual - 2011
2-16 Keys, Doors and Windows
The system has one or more
transmitters that are matched to
an immobilizer control unit in your
vehicle. Only a correctly matched
transmitter will start the vehicle.
If the transmitter is ever damaged,
you may not be able to start your
vehicle.
When trying to start the vehicle, the
security light comes on briefly when
the ignition is turned on.
If the engine does not start and the
security light stays on, there is a
problem with the system. Turn the
ignition off and try again.If the RKE appears to be
undamaged, try another
transmitter. Or, you may try
placing the transmitter in the
transmitter pocket located in the
center console. See
“No Remote
Detected” underKey and Lock
Messages on page 5‑36.
If the engine does not start with
the other transmitter or when the
transmitter is on the pocket in the
center console, your vehicle needs
service. See your dealer who can
service the theft-deterrent system
and have a new transmitter
programmed to the vehicle.
Do not leave the key or device
that disarms or deactivates the
theft-deterrent system in the vehicle.Exterior Mirrors
Power Mirrors
To adjust the mirrors:
1. Turn the control knob to the L (left) or R (right) selecting the
driver or passenger mirror.
2. Push the control knob to the left, right, up, or down to adjust the
mirror.

Black plate (7,1)Buick LaCrosse Owner Manual - 2011
INDEX i-7
Heated and Ventilated FrontSeats . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Heated Mirrors . . . . . . . . . . . . . . . . . 2-17
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 9-23
Heating and Air Conditioning . . . 8-1
High-Beam On Light . . . . . . . . . . . 5-24
Highway Hypnosis . . . . . . . . . . . . . . 9-8
Hill and Mountain Roads . . . . . . . . 9-8
Hill Start Assist (HSA) . . . . . . . . . 9-35
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
How to Wear Safety Belts Properly . . . . . . . . . . . . . . . . . . . . . . 3-17I
Ignition Positions . . . . . . . . 9-17, 9-19
Ignition Transmission LockCheck . . . . . . . . . . . . . . . . . . . . . . . 10-28
Immobilizer . . . . . . . . . . . . . . . . . . . . 2-14
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . 3-46
Infotainment . . . . . . . . . . . . . . . . . . . . 7-1
Instrument Cluster . . . . . . . . . . . . . 5-10
Introduction . . . . . . . . . . . . . . . . . . . . . . . iii
J
Jump Starting . . . . . . . . . . . . . . . . . 10-86
K
Key and Lock Messages . . . . . . . 5-36
Keyless Entry Remote (RKE) System . . . . . . . . 2-4
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
L
Labeling, Tire Sidewall . . . . . . . . 10-48
Lamp Messages . . . . . . . . . . . . . . . 5-37
Lamps Daytime Running (DRL) . . . . . . . 6-3
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Exterior Controls . . . . . . . . . . . . . . . 6-1
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . . 6-2
Headlamps, Front Turn Signal and Parking
Lamps . . . . . . . . . . . . . . . . . . . . 10-34
License Plate . . . . . . . . . . . . . . . 10-36
Malfunction Indicator . . . . . . . . . 5-17
Reading . . . . . . . . . . . . . . . . . . . . . . . 6-5
Sun Visor . . . . . . . . . . . . . . . . . . . . . . 6-5
Lap-Shoulder Belt . . . . . . . . . . . . . 3-22

Black plate (13,1)Buick LaCrosse Owner Manual - 2011
INDEX i-13
T
Tachometer . . . . . . . . . . . . . . . . . . . . 5-11
Taillamp Indicator Light . . . . . . . . 5-25
TaillampsBulb Replacement . . . . . . . . . . 10-35
Text Telephone (TTY) Users . . . 13-6
Theft-Deterrent Systems . . . . . . . . . . . . . . . 2-14, 2-15
Immobilizer . . . . . . . . . . . . . . . . . . . 2-14
Time . . . . . . . . . . . . . . . . . . . . . . . . 5-5, 5-6
Tires Buying New Tires . . . . . . . . . . . 10-64
Chains . . . . . . . . . . . . . . . . . . . . . . 10-69
Changing . . . . . . . . . . . . . . . . . . . 10-79
Compact Spare . . . . . . . . . . . . . 10-85
Designations . . . . . . . . . . . . . . . 10-50
Different Size . . . . . . . . . . . . . . . 10-66
If a Tire Goes Flat . . . . . . . . . . 10-70
Inflation Monitor System . . . . 10-57
Inspection . . . . . . . . . . . . . . . . . . 10-61
Messages . . . . . . . . . . . . . . . . . . . . 5-38 Tires (cont.)
Pressure Light . . . . . . . . . . . . . . . . 5-23
Pressure Monitor System . . . 10-56
Rotation . . . . . . . . . . . . . . . . . . . . 10-61
Sealant and
Compressor Kit . . . . . . . . . . . 10-72
Sealant and Compressor Kit, Storing . . . . . . . . . . . . . . . . 10-79
Sidewall Labeling . . . . . . . . . . . 10-48
Terminology and
Definitions . . . . . . . . . . . . . . . . . 10-51
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . 10-66
Wheel Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . 10-68
Wheel Replacement . . . . . . . . 10-68
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . 10-63
Winter . . . . . . . . . . . . . . . . . . . . . . 10-47
Towing Driving Characteristics . . . . . . . . 9-56
Equipment . . . . . . . . . . . . . . . . . . . . 9-61
General Information . . . . . . . . . . 9-55 Towing (cont.)
Recreational Vehicle . . . . . . . . 10-89
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 9-60
Vehicle . . . . . . . . . . . . . . . . . . . . . 10-89
Traction Control System (TCS) . . . . . . . . 9-36
Limited-Slip Differential . . . . . . . 9-38
Off Light . . . . . . . . . . . . . . . . . . . . . . 5-21
Selective Ride Control . . . . . . . . 9-38
Trailer Towing . . . . . . . . . . . . . . . . . 9-60
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . 9-28
Fluid, Automatic . . . . . . . . . . . . 10-15
Messages . . . . . . . . . . . . . . . . . . . . 5-38
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . 13-11
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Turn Signal Bulb Replacement . . . . . . . . . . 10-35