2015 BUICK LACROSSE keyless entry

Black plate (1,1)Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707475) - 2015 - CRC - 10/9/14
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 . . . . . . . . . . . . . . . . 1-5
Windows . . . . . . . . . . . . . . . . . . . . . . 1-6
Seat Adjustment . . . . . . . . . . . . . . 1-6
Memory Features . . . . . . . . . . . . . 1-8
Heated and Ventilated Seats . . . . . . . . . . . . . . . . . . . . . . . . 1-8
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 . . . . . . . . . . . . . . . . 1-14
Vehicle Features
Infotainment System . . . . . . . . . 1-15
Steering Wheel Controls . . . . . 1-15
Cruise Control . . . . . . . . . . . . . . . 1-15
Driver Information
Center (DIC) . . . . . . . . . . . . . . . 1-15
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . 1-16
Lane Departure Warning (LDW) . . . . . . . . . . . . . 1-16
Lane Change Alert (LCA) . . . . 1-16
Rear Vision
Camera (RVC) . . . . . . . . . . . . . 1-17
Rear Cross Traffic Alert (RCTA) System . . . . . . . . . . . . 1-17
Parking Assist . . . . . . . . . . . . . . . 1-17
Active Emergency Braking System . . . . . . . . . . . . . . . . . . . . . 1-17 Power Outlets . . . . . . . . . . . . . . . 1-17
Universal Remote System . . . 1-18
Sunroof . . . . . . . . . . . . . . . . . . . . . . 1-18
eAssist Features
eAssist®Overview . . . . . . . . . . . 1-19
High Voltage Safety Information . . . . . . . . . . . . . . . . . 1-20
Automatic Engine Start/Stop Feature . . . . . . . . . . . . . . . . . . . . . 1-20
Regenerative Braking . . . . . . . . 1-20
Battery . . . . . . . . . . . . . . . . . . . . . . . 1-21
Service . . . . . . . . . . . . . . . . . . . . . . 1-21
Performance and Maintenance
Traction Control/Electronic Stability Control . . . . . . . . . . . . 1-21
Tire Pressure Monitor . . . . . . . . 1-22
Engine Oil Life System . . . . . . 1-22
E85 or FlexFuel . . . . . . . . . . . . . . 1-23
Driving for Better Fuel Economy . . . . . . . . . . . . . . . . . . . 1-23
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . 1-23
OnStar
®. . . . . . . . . . . . . . . . . . . . . 1-23

Black plate (4,1)Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707475) - 2015 - CRC - 10/9/14
1-4 In Brief
Initial Drive
Information
This section provides a brief
overview about some of the
important features that may or may
not be on your specific vehicle.
For more detailed information, refer
to each of the features which can be
found later in this owner manual.
Remote Keyless Entry
(RKE) System
The RKE transmitter may work up to
60 m (197 ft) away from the vehicle.
With Remote Start Shown
Press the button to extend the key.
The key can be used for all locks.
This key is also used for the
ignition, if the vehicle does not have
pushbutton start.
K: Press to unlock the driver door
or all doors.
Q: Press to lock all doors.
Lock and unlock feedback can be
personalized.
Y: Press and hold to release the
trunk.
7: Press and release to initiate
vehicle locator. Press and hold for at
least three seconds to sound the
panic alarm. Press again to cancel
the panic alarm.
See Keys on page 2-1 andRemote
Keyless Entry (RKE) System
Operation on page 2-3.
Remote Vehicle Start
For vehicles with this feature, the
engine can be started from outside
the vehicle.
Starting the Vehicle
1. Aim the RKE transmitter at the vehicle.
2. Press and release
Q.
3. Immediately after completing Step 2, press and hold
/for at
least four seconds or until the
turn signal lamps flash.

Black plate (5,1)Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707475) - 2015 - CRC - 10/9/14
In Brief 1-5
When the engine starts, the parking
lamps will turn on and remain on as
long as the engine is running. The
doors will be locked and the climate
control system may come on.
The engine will continue to run for
10 minutes. After 30 seconds,
repeat the steps if a 10-minute time
extension is desired. Remote start
can be extended only once.
Canceling a Remote Start
To cancel a remote start, do one of
the following:
.Aim the RKE transmitter at the
vehicle and press and hold
/
until the parking lamps turn off.
.Turn on the hazard warning
flashers.
.Turn the vehicle on and then off.The time can be extended on a
remote start.
See
Remote Vehicle Start on
page 2-9.
Door Locks
To lock or unlock the doors:
.From inside the vehicle, use the
door lock knob or the power
door lock controls. Pull once on
the door handle to unlock it, and
a second time to open it.
.From outside, use the key,
or press
QorKon the Remote
Keyless Entry (RKE) transmitter.
See Remote Keyless Entry
(RKE) System Operation on
page 2-3.
See Door Locks on page 2-11.
Power Door Locks
The power door lock controls are on
the front door panels.
K:Press to unlock all doors.
Q:Press to lock all doors.
See Power Door Locks on
page 2-11.
Trunk Release
To open the trunk, press and hold
Yon the Remote Keyless Entry
(RKE) transmitter to unlock all doors
and then press the touch pad above
the license plate.
To open the trunk from inside the
vehicle, press the trunk release
button on the driver door. The
vehicle must be in P (Park) or off.
See Trunk on page 2-13.

Black plate (1,1)Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707475) - 2015 - CRC - 10/9/14
Keys, Doors, and Windows 2-1
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . 2-2
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . 2-3
Remote Vehicle Start . . . . . . . . . 2-9
Door Locks . . . . . . . . . . . . . . . . . . 2-11
Power Door Locks . . . . . . . . . . . 2-11
Delayed Locking . . . . . . . . . . . . . 2-12
Automatic Door Locks . . . . . . . 2-12
Lockout Protection . . . . . . . . . . . 2-12
Safety Locks . . . . . . . . . . . . . . . . . 2-12
Doors
Trunk . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . 2-15
Vehicle Alarm System . . . . . . . 2-15 Immobilizer . . . . . . . . . . . . . . . . . . 2-16
Immobilizer Operation (Key
Access) . . . . . . . . . . . . . . . . . . . . 2-16
Immobilizer Operation (Keyless Access) . . . . . . . . . . . 2-17
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . 2-18
Power Mirrors . . . . . . . . . . . . . . . . 2-18
Folding Mirrors . . . . . . . . . . . . . . . 2-19
Heated Mirrors . . . . . . . . . . . . . . . 2-19
Reverse Tilt Mirrors . . . . . . . . . . 2-19
Interior Mirrors
Interior Rearview Mirrors . . . . . 2-19
Manual Rearview Mirror . . . . . . 2-20
Automatic Dimming Rearview
Mirror . . . . . . . . . . . . . . . . . . . . . . . 2-20
Windows
Windows . . . . . . . . . . . . . . . . . . . . . 2-20
Power Windows . . . . . . . . . . . . . 2-20
Sun Visors . . . . . . . . . . . . . . . . . . . 2-22
Rear Window Sunshade . . . . . 2-22
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . 2-23
Keys and Locks
Keys
{Warning
Leaving children in a vehicle with
an ignition key or Remote
Keyless Entry (RKE) transmitter is
dangerous and children or others
could be seriously injured or
killed. They could operate the
power window or other controls or
make the vehicle move. The
windows will function with the key
in the ignition or with the RKE
transmitter in the vehicle, and
children or others could be caught
in the path of a closing window.
Do not leave children in a vehicle
with the ignition key or an RKE
transmitter.

Black plate (2,1)Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707475) - 2015 - CRC - 10/9/14
2-2 Keys, Doors, and Windows
The key that is part of the Remote
Keyless Entry (RKE) transmitter can
be used for the ignition and all locks
if the vehicle is a key access
vehicle. If the vehicle has the
keyless ignition, the key can be
used for the locks.Press the button on the RKE
transmitter to extend the key. Press
the button and the key blade to
retract the key.
If it becomes difficult to turn the key
in a vehicle lock, inspect the key
blade for debris. Periodically clean
with a brush or pick.
See your dealer if a new key is
needed.
If locked out of the vehicle, see
Roadside Assistance Program on
page 13-5.With an active OnStar subscription,
an OnStar Advisor may remotely
unlock the vehicle. See
OnStar
Overview on page 14-1.
Remote Keyless Entry
(RKE) System
See Radio Frequency Statement on
page 13-12.
If there is a decrease in the RKE
operating range:
.Check the distance. The
transmitter may be too far from
the vehicle.
.Check the location. Other
vehicles or objects may be
blocking the signal.
.Check the transmitter's battery.
See “Battery Replacement” later
in this section.
.If the transmitter is still not
working correctly, see your
dealer or a qualified technician
for service.

Black plate (3,1)Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707475) - 2015 - CRC - 10/9/14
Keys, Doors, and Windows 2-3
Remote Keyless Entry
(RKE) System Operation
The Keyless Access system allows
for vehicle entry when the
transmitter is within range. See
“Keyless Access Operation”later in
this section.
The transmitter functions may work
up to 60 m (197 ft) away from the
vehicle.
Other conditions can impact the
performance of the transmitter.
Q(Lock): Press to lock all doors.
The turn signal indicators may flash
and/or the horn may sound on the
second press to indicate locking.
See “Remote Lock Feedback” under
Vehicle Personalization on
page 5-45.
If the driver door is open when
Qis
pressed, all doors lock except the
driver door, if enabled through the
vehicle personalization.
If the passenger door is open when
Qis pressed, all doors lock.
Pressing
Qmay also arm the
theft-deterrent system. See Vehicle
Alarm System on page 2-15.
K(Unlock): Press to unlock the
driver door or all doors. See “Door
Unlock Options” underVehicle
Personalization on page 5-45.
The turn signal indicators may flash
to indicate unlocking. See “Remote
Unlock Light Feedback” under
Vehicle Personalization on
page 5-45. Pressing
Kwill disarm the
theft-deterrent system. See Vehicle
Alarm System on page 2-15.
Memory seat positions may be
recalled when unlocking the vehicle.
See Memory Seats on page 3-7 and
“Auto Memory Recall” underVehicle
Personalization on page 5-45.
Y(Remote Trunk Release):
Press and hold to release the trunk.
7(Vehicle Locator/Panic
Alarm): Press and release to
initiate vehicle locator. The exterior
lamps flash and the horn chirps
three times.
Press and hold
7for at least
three seconds to sound the panic
alarm. The horn sounds and the
turn signals flash until
7is pressed
again or the vehicle is started.
/(Remote Vehicle Start):
If equipped, press
Qand release
and then immediately press and
hold
/for at least four seconds to
start the engine from outside the

Black plate (11,1)Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707475) - 2015 - CRC - 10/9/14
Keys, Doors, and Windows 2-11
Door Locks
{Warning
Unlocked doors can be
dangerous.
.Passengers, especially
children, can easily open the
doors and fall out of a moving
vehicle. The chance of being
thrown out of the vehicle in a
crash is increased if the
doors are not locked. So, all
passengers should wear
safety belts properly and the
doors should be locked
whenever the vehicle is
driven.
.Young children who get into
unlocked vehicles may be
unable to get out. A child can
be overcome by extreme heat
and can suffer permanent
injuries or even death from
heat stroke. Always lock the
vehicle whenever leaving it.(Continued)
Warning (Continued)
.Outsiders can easily enter
through an unlocked door
when slowing or stopping the
vehicle. Lock the doors to
help prevent this from
happening.
To lock or unlock the doors from the
outside, press
QorKon the
Remote Keyless Entry (RKE)
transmitter or use the key in the
door. See Remote Keyless Entry
(RKE) System Operation on
page 2-3.
To lock or unlock the doors from the
inside:
.PressQorKon a power door
lock switch.
.Pushing down the manual lock
knob on the driver door will lock
all doors. Pushing down the
manual lock knob on a
passenger door will lock that
door only.
.Pulling the door handle once will
unlock the door. Pulling the door
handle again will unlatch it.
Power Door Locks
K: Press to unlock the doors.
Q:Press to lock the doors.
See Vehicle Personalization on
page 5-45 for more information.

Black plate (13,1)Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707475) - 2015 - CRC - 10/9/14
Keys, Doors, and Windows 2-13
Manual Safety Locks
If equipped, the safety lock is
located on the inside edge of the
rear doors. To use the safety lock:
1. Insert the key into the safety lockslot and turn it so the slot is in
the horizontal position.
2. Close the door.
3. Do the same for the other rear door. To open a rear door when the safety
lock is on:
1. Unlock the door by activating the
inside handle, by using the
power door lock switch, or by
using the Remote Keyless
Entry (RKE) transmitter.
2. Open the door from the outside.
To cancel the safety lock:
1. Unlock the door and open it from the outside.
2. Insert the key into the safety lock slot and turn it so the slot is in
the vertical position. Do the
same for the other door.
Doors
Trunk
{Warning
Exhaust gases can enter the
vehicle if it is driven with the
liftgate, trunk/hatch open, or with
any objects that pass through the
seal between the body and the
trunk/hatch or liftgate. Engine
exhaust contains carbon
monoxide (CO) which cannot be
seen or smelled. It can cause
unconsciousness and even death.
If the vehicle must be driven with
the liftgate, or trunk/hatch open:
.Close all of the windows.
.Fully open the air outlets on
or under the instrument
panel.
(Continued)