Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
ContentsIntroduction . . . . . . . . . . . . . . . . . . . . . . 2
In Brief . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Keys, Doors, and Windows . . . . . 26
Seats and Restraints . . . . . . . . . . . 49
Storage . . . . . . . . . . . . . . . . . . . . . . . . . 97
Instruments and Controls . . . . . . 100
Lighting . . . . . . . . . . . . . . . . . . . . . . . 148
Infotainment System . . . . . . . . . . 156
Climate Controls . . . . . . . . . . . . . . 157
Driving and Operating . . . . . . . . . 163
Vehicle Care . . . . . . . . . . . . . . . . . . 226
Service and Maintenance . . . . . 313
Technical Data . . . . . . . . . . . . . . . . 326
Customer Information . . . . . . . . . 330
Reporting Safety Defects . . . . . . 341
OnStar . . . . . . . . . . . . . . . . . . . . . . . . 345
Index . . . . . . . . . . . . . . . . . . . . 355
Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
In Brief 5
In Brief
Instrument Panel
Instrument Panel . . . . . . . . . . . . . . . . 6
Initial Drive Information
Initial Drive Information . . . . . . . . . . 8
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . . . 8
Remote Vehicle Start . . . . . . . . . . . 8
Door Locks . . . . . . . . . . . . . . . . . . . . . 9
Trunk Release . . . . . . . . . . . . . . . . . . 9
Windows . . . . . . . . . . . . . . . . . . . . . . . . 9
Seat Adjustment . . . . . . . . . . . . . . . 10
Memory Features . . . . . . . . . . . . . . 12
Heated and Ventilated Seats . . . 12
Head Restraint Adjustment . . . . 13
Safety Belts . . . . . . . . . . . . . . . . . . . . 13
Passenger Sensing System . . . 13
Mirror Adjustment . . . . . . . . . . . . . . 14
Steering Wheel Adjustment . . . . 15
Interior Lighting . . . . . . . . . . . . . . . . 15
Exterior Lighting . . . . . . . . . . . . . . . 16
Windshield Wiper/Washer . . . . . . 16
Climate Controls . . . . . . . . . . . . . . . 17
Transmission . . . . . . . . . . . . . . . . . . 18
Vehicle Features
Infotainment System . . . . . . . . . . . 18
Steering Wheel Controls . . . . . . . 18 Cruise Control . . . . . . . . . . . . . . . . . 18
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . . 19
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . 19
Front Automatic Braking (FAB) System . . . . . . . . . . . . . . . . . . . . . . . 19
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . 19
Lane Change Alert (LCA) . . . . . . 20
Rear Vision Camera (RVC) . . . . 20
Rear Cross Traffic Alert (RCTA) System . . . . . . . . . . . . . . . . . . . . . . . 20
Parking Assist . . . . . . . . . . . . . . . . . 20
Power Outlets . . . . . . . . . . . . . . . . . 20
Universal Remote System . . . . . 21
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 21
eAssist Features
eAssist®Overview . . . . . . . . . . . . . 22
High Voltage Safety Information . . . . . . . . . . . . . . . . . . . 22
Automatic Engine Start/Stop Feature . . . . . . . . . . . . . . . . . . . . . . . 22
Regenerative Braking . . . . . . . . . . 23
Battery . . . . . . . . . . . . . . . . . . . . . . . . . 23
Service . . . . . . . . . . . . . . . . . . . . . . . . 23
Performance and Maintenance
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . 23 Tire Pressure Monitor . . . . . . . . . . 24
Engine Oil Life System . . . . . . . . 24
E85 or FlexFuel . . . . . . . . . . . . . . . . 25
Driving for Better Fuel
Economy . . . . . . . . . . . . . . . . . . . . . 25
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . . . 25
Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
In Brief 9
Canceling a Remote Start
To cancel a remote start, do one of
the following:
.Press and hold
/until the
parking lamps turn off.
. Turn on the hazard warning
flashers.
. Turn the vehicle on and then off.
See Remote Vehicle Start 034.
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 028.
See Door Locks 035.
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 036.
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 038.
Windows
Press the switch to lower the
window. Pull the switch up to
raise it.
See Power Windows 045.
Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
In Brief 17
INT :Move the lever up to INT for
intermittent wipes, then turn
the
xINT band up for more
frequent wipes or down for less
frequent wipes.
OFF : Use to turn the wipers off.
1X : For a single wipe, briefly move
the lever down. For several wipes,
hold the lever down.
n L: Pull the lever toward you to
spray windshield washer fluid and
activate the wipers.
See Windshield Wiper/
Washer 0102.
Climate Controls
The heating, cooling, and ventilation for the vehicle can be controlled with
this system.
1. Driver and Passenger
Temperature Controls
2. Heated and Ventilated Front Seats
3. Fan Control
4. Air Delivery Mode Controls 5. Defrost
6. SYNC (Synchronized
Temperature)
7. AUTO (Automatic Operation)
8. Rear Window Defogger
Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
26 Keys, Doors, and Windows
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . . 28
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . . 28
Remote Vehicle Start . . . . . . . . . . 34
Door Locks . . . . . . . . . . . . . . . . . . . . 35
Power Door Locks . . . . . . . . . . . . . 36
Delayed Locking . . . . . . . . . . . . . . . 36
Automatic Door Locks . . . . . . . . . 37
Lockout Protection . . . . . . . . . . . . . 37
Safety Locks . . . . . . . . . . . . . . . . . . . 37
Doors
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . 40
Vehicle Alarm System . . . . . . . . . 40
Immobilizer . . . . . . . . . . . . . . . . . . . . 41
Immobilizer Operation (Key Access) . . . . . . . . . . . . . . . . . . . . . . 41
Immobilizer Operation (Keyless Access) . . . . . . . . . . . . . . . . . . . . . . 42
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . 43
Power Mirrors . . . . . . . . . . . . . . . . . . 43
Folding Mirrors . . . . . . . . . . . . . . . . . 44
Heated Mirrors . . . . . . . . . . . . . . . . . 44
Reverse Tilt Mirrors . . . . . . . . . . . . 44
Interior Mirrors
Interior Rearview Mirrors . . . . . . . 44
Manual Rearview Mirror . . . . . . . . 44
Automatic Dimming RearviewMirror . . . . . . . . . . . . . . . . . . . . . . . . . 45
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . 45
Power Windows . . . . . . . . . . . . . . . 45
Sun Visors . . . . . . . . . . . . . . . . . . . . . 47
Rear Window Sunshade . . . . . . . 47
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 47
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.
Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Keys, Doors, and Windows 27
{Warning
If the key is unintentionally
rotated while the vehicle is
running, the ignition could be
moved out of the RUN position.
This could be caused by heavy
items hanging from the key ring,
or by large or long items attached
to the key ring that could be
contacted by the driver or
steering wheel. If the ignition
moves out of the RUN position,
the engine will shut off, braking
and steering power assist may be(Continued)
Warning (Continued)
impacted, and airbags may not
deploy. To reduce the risk of
unintentional rotation of the
ignition key, do not change the
way the ignition key and Remote
Keyless Entry (RKE) transmitter,
if equipped, are connected to the
provided key rings.
If the vehicle is equipped with a
keyed ignition, the ignition key, key
rings, and RKE transmitter,
if equipped, are designed to work
together. As a system, it reduces
the risk of unintentionally moving
the key out of the RUN position.
If replacements or additions are
required, see your dealer. Limit
added items to a few essential keys
or small, light items no larger than
an RKE transmitter.
Interference from radio-frequency
identification (RFID) tags may
prevent the key from starting the
vehicle. Keep RFID tags away from
the key when starting the vehicle.
The key that is part of the 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.
Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
28 Keys, Doors, and Windows
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
Program0334. With an active OnStar subscription,
an OnStar Advisor may remotely
unlock the vehicle. See
OnStar
Overview 0345.
Remote Keyless Entry
(RKE) System
See Radio Frequency
Statement 0341.
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.
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.
Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Keys, Doors, and Windows 29
The turn signal indicators may flash
and/or the horn may sound on the
second press to indicate locking.
SeeVehicle Personalization 0139.
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 040.
K(Unlock) : Press to unlock the
driver door or all doors. See Vehicle
Personalization 0139.
The turn signal indicators may flash
to indicate unlocking. See Vehicle
Personalization 0139.
Pressing
Kwill disarm the
theft-deterrent system. See Vehicle
Alarm System 040.
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
vehicle using the RKE transmitter.
See Remote Vehicle Start 034.
The RKE transmitter buttons will not
operate when the key is in the
ignition.
Keyless Access Operation
If equipped with a Keyless Access
system, it allows for locking and
unlocking the doors and accessing
the trunk without removing the RKE
transmitter from your pocket, purse,
briefcase, etc. The RKE transmitter should be within 1 m (3 ft) of the
door or trunk being opened. If the
vehicle has this feature, there will be
buttons on the outside of the door
handles.
Keyless Access can be
programmed to unlock all doors on
the first unlock/lock button press
from the driver door. See
Vehicle
Personalization 0139.
Keyless Unlocking/Locking from
the Driver Door
When the doors are locked and the
RKE transmitter is within 1 m (3 ft)
of the driver door handle, pressing
the lock/unlock button on the driver
door handle will unlock the driver
door. If the lock/unlock button is
pressed again within five seconds,
all passenger doors will unlock.