
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 21
Universal Remote System
If equipped, these buttons in the
overhead console provide a way to
replace up to three remote control
transmitters used to activate
devices such as garage door
openers, security systems, and
home automation devices.
Read the instructions completely
before attempting to program the
Universal Remote system. Because
of the steps involved, it may be
helpful to have another person
available to assist with programming
the Universal Remote system.See
Universal Remote
System 0145.
Sunroof
On vehicles with a sunroof, the
switches are located on the
overhead console.
The ignition must be in ON/RUN or
ACC/ACCESSORY, or Retained
Accessory Power (RAP) must be
active. See Retained Accessory
Power (RAP) 0183. Vent :
Press the rear of the
switch (2) to the first detent to vent
the sunroof. Press the front of the
switch (1) to the second detent to
close the sunroof.
Express-open/Express-close : To
express-open the sunroof, fully
press and release the rear of the
switch (2). To express-close, fully
press and release the front of the
switch (1). To stop the sunroof
partway, press either switch a
second time.
The sunshade opens automatically
with the sunroof.
To express-open the sunshade, fully
press and release the rear of the
switch (3). To stop the sunshade
partway, press the switch a second
time. To express-close, fully press
and release the front of the
switch (4). To stop the sunshade
partway, press the switch a
second time.
See Sunroof 047.

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 45
Automatic Dimming
Rearview Mirror
If equipped, automatic dimming
reduces the glare of the headlamps
from behind. This feature comes on
when the vehicle is started.
Windows
{Warning
Never leave a child, a helpless
adult, or a pet alone in a vehicle,
especially with the windows
closed in warm or hot weather.
They can be overcome by the
extreme heat and suffer
permanent injuries or even death
from heat stroke.
The vehicle aerodynamics are
designed to improve fuel economy
performance. This may result in a
pulsing sound when either rear
window is down and the front
windows are up. To reduce the
sound, open either a front window
or the sunroof, if equipped.
Power Windows
{Warning
Children could be seriously
injured or killed if caught in the
path of a closing window. Never
leave keys in a vehicle with
children. When there are children
in the rear seat, use the window
lockout button to prevent
operation of the windows. See
Keys026.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Keys, Doors, and Windows 47
The window is now reprogrammed.
Repeat the process for the other
windows.
Sun Visors
Pull the sun visor down to block
glare. Detach the sun visor from the
center mount to pivot to the side
window or, if equipped, extend
along the rod.
Rear Window Sunshade
If equipped, the rear window
sunshade button is on the overhead
console. To open the sunshade,
press and release. The sunshade
will fully extend. To close the
sunshade, press and release the
switch again. The sunshade will fully
close.
The sunshade only operates when
the ignition is in ON/RUN or ACC/
ACCESSORY.
When shifting the vehicle into
R (Reverse), the sunshade will
automatically retract if it is
extended.
Roof
Sunroof
On vehicles with a sunroof, the
switch is on the overhead console.
The ignition must be in ON/RUN or
ACC/ACCESSORY, or Retained
Accessory Power (RAP) must be
active. SeeRetained Accessory
Power (RAP) 0183.
Vent : Press the rear of the
switch (2) to the first detent to vent
the sunroof. Press the front of the
switch (1) to the second detent to
close the sunroof.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
48 Keys, Doors, and Windows
Express-Open/Express-Close :To
express-open the sunroof, fully
press and release the rear of the
switch (2). To express-close, fully
press and release the front of the
switch (1). To stop the sunroof
partway, press either switch a
second time.
The sunshade opens automatically
with the sunroof.
To express-open the sunshade, fully
press and release the rear of the
switch (3). To stop the sunshade
partway, press the switch a second
time. To express-close, fully press
and release the front of the
switch (4). To stop the sunshade
partway, press the switch a
second time.
Automatic Reversal System
The sunroof/sunshade is equipped
with an automatic reversal system
that is only active when the sunroof/
sunshade is being operated in
express mode. If an object is in the
path of the sunroof/sunshade while
it is express closing, the reversal
system will detect the object and
stop. In the event of closing difficulties like frost or other
conditions, it is possible to override
the reversal system. To override the
reversal system, close in manual
mode. To stop the movement,
release the switch.
Dirt and debris may collect on the
sunroof seal or in the track. This
could cause issues with sunroof
operation and noise. It could also
plug the water drainage system.
Periodically open the sunroof and
remove any obstacles or loose
debris. Wipe the sunroof seal and
roof sealing area using a clean
cloth, mild soap, and water. Do not
remove grease from the sunroof.
If water is seen dripping into the
water drainage system, this is
normal.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Seats and Restraints 65
Replacing Safety Belt
System Parts after a
Crash
{Warning
A crash can damage the safety
belt system in the vehicle.
A damaged safety belt system
may not properly protect the
person using it, resulting in
serious injury or even death in a
crash. To help make sure the
safety belt systems are working
properly after a crash, have them
inspected and any necessary
replacements made as soon as
possible.After a minor crash, replacement of
safety belts may not be necessary.
But the safety belt assemblies that
were used during any crash may
have been stressed or damaged.
See your dealer to have the safety
belt assemblies inspected or
replaced.
New parts and repairs may be
necessary even if the safety belt
system was not being used at the
time of the crash.
Have the safety belt pretensioners
checked if the vehicle has been in a
crash, or if the airbag readiness light
stays on after you start the vehicle
or while you are driving. See
Airbag
Readiness Light 0112.
Airbag System
The vehicle has the following
airbags:
.
A frontal airbag for the driver.
. A frontal airbag for the front
outboard passenger.
. A seat-mounted side impact
airbag for the driver.
. A seat-mounted side impact
airbag for the front outboard
passenger.
. A roof-rail airbag for the driver
and the passenger seated
directly behind the driver.
. A roof-rail airbag for the front
outboard passenger and the
passenger seated directly
behind the front outboard
passenger.
. Seat-mounted side impact
airbags for the second row
outboard passengers.
All of the airbags have the word
AIRBAG embossed on the trim or
on a label near the deployment
opening.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
66 Seats and Restraints
For frontal airbags, the word
AIRBAG is on the center of the
steering wheel for the driver and on
the instrument panel for the front
outboard passenger.
For seat-mounted side impact
airbags, the word AIRBAG is on the
side of the seatback closest to
the door.
For roof-rail airbags, the word
AIRBAG is on the ceiling or trim.
Airbags are designed to supplement
the protection provided by safety
belts. Even though today's airbags
are also designed to help reduce
the risk of injury from the force of an
inflating bag, all airbags must inflate
very quickly to do their job.
Here are the most important things
to know about the airbag system:
{Warning
You can be severely injured or
killed in a crash if you are not
wearing your safety belt, even
with airbags. Airbags are(Continued)
Warning (Continued)
designed to work with safety
belts, not replace them. Also,
airbags are not designed to inflate
in every crash. In some crashes
safety belts are the only restraint.
SeeWhen Should an Airbag
Inflate? 068.
Wearing your safety belt during a
crash helps reduce the chance of
hitting things inside the vehicle or
being ejected from it. Airbags are
“supplemental restraints” to the
safety belts. Everyone in the
vehicle should wear a safety belt
properly, whether or not there is
an airbag for that person.
{Warning
Because airbags inflate with great
force and faster than the blink of
an eye, anyone who is up
against, or very close to any
airbag when it inflates can be
(Continued)
Warning (Continued)
seriously injured or killed. Do not
sit unnecessarily close to any
airbag, as you would be if sitting
on the edge of the seat or leaning
forward. Safety belts help keep
you in position before and during
a crash. Always wear a safety
belt, even with airbags. The driver
should sit as far back as possible
while still maintaining control of
the vehicle. The safety belts and
the front outboard passenger
airbags are most effective when
you are sitting well back and
upright in the seat with both feet
on the floor.
Occupants should not lean on or
sleep against the door or side
windows in seating positions with
seat-mounted side impact airbags
and/or roof-rail airbags.