roof BUICK LACROSSE 2019 Owner's Manual

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
In Brief 5
In Brief
Instrument Panel
Instrument Panel . . . . . . . . . . . . . . . . 6
Initial Drive Information
Initial Drive Information . . . . . . . . . . 8
Stop/Start System . . . . . . . . . . . . . . . 8
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . . . 8
Remote Vehicle Start . . . . . . . . . . . 8
Door Locks . . . . . . . . . . . . . . . . . . . . . 9
Trunk Release . . . . . . . . . . . . . . . . . . 9
Windows . . . . . . . . . . . . . . . . . . . . . . . 10
Seat Adjustment . . . . . . . . . . . . . . . 10
Memory Features . . . . . . . . . . . . . . 11
Heated and Ventilated Seats . . . 11
Head Restraint Adjustment . . . . 12
Seat Belts . . . . . . . . . . . . . . . . . . . . . 12
Passenger Sensing System . . . 12
Mirror Adjustment . . . . . . . . . . . . . . 13
Steering Wheel Adjustment . . . . 13
Interior Lighting . . . . . . . . . . . . . . . . 14
Exterior Lighting . . . . . . . . . . . . . . . 15
Windshield Wiper/Washer . . . . . . 15
Climate Controls . . . . . . . . . . . . . . . 16
Transmission . . . . . . . . . . . . . . . . . . 17
Vehicle Features
Infotainment System . . . . . . . . . . . 18
Steering Wheel Controls . . . . . . . 18
Cruise Control . . . . . . . . . . . . . . . . . 19
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . 19
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . 20
Forward Automatic Braking (FAB) . . . . . . . . . . . . . . . . 20
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . 20
Lane Keep Assist (LKA) . . . . . . . 20
Lane Change Alert (LCA) . . . . . . 20
Rear Vision Camera (RVC) . . . . 21
Rear Cross Traffic Alert (RCTA) System . . . . . . . . . . . . . . . . . . . . . . . 21
Parking Assist . . . . . . . . . . . . . . . . . 21
Automatic Parking Assist (APA) . . . . . . . . . . . . . . . . . . 21
Power Outlets . . . . . . . . . . . . . . . . . 21
Universal Remote System . . . . . 22
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 22
eAssist Features
eAssist Overview . . . . . . . . . . . . . . 23
High Voltage Safety Information . . . . . . . . . . . . . . . . . . . 24
Automatic Engine Stop/Start Feature . . . . . . . . . . . . . . . . . . . . . . . 24 Regenerative Braking . . . . . . . . . . 24
Battery . . . . . . . . . . . . . . . . . . . . . . . . . 24
Service . . . . . . . . . . . . . . . . . . . . . . . . 24
Performance and Maintenance
Traction Control/Electronic
Stability Control . . . . . . . . . . . . . . 25
Tire Pressure Monitor . . . . . . . . . . 25
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
E85 or FlexFuel . . . . . . . . . . . . . . . . 26
Engine Oil Life System . . . . . . . . 26
Driving for Better Fuel Economy . . . . . . . . . . . . . . . . . . . . . 26
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . . . 27

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
22 In Brief
The vehicle has three power outlets:
.Under the front of the center
console
. Inside the center console
storage
. On the rear of the center
console
Open the protective cover to use the
power outlet.
The outlet is powered when the
ignition is on or in ACC/
ACCESSORY, or until the driver
door is opened within 10 minutes of
turning off the vehicle. See Retained
Accessory Power (RAP) 0181.
See Power Outlets 0108.Universal Remote System
If equipped, this system provides 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
0 145.
Sunroof
1. Sunroof Switch
2. Power Sunshade
Switch (Rear)
3. Power Sunshade Switch (Sunroof)
On vehicles with a sunroof, the
switches are on the overhead
console.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
In Brief 23
The ignition must be on, in ACC/
ACCESSORY, or Retained
Accessory Power (RAP) must be
active. SeeRetained Accessory
Power (RAP) 0181.
Sunroof Switch
Express-Open/Express-Close : To
express-open the sunroof, fully
press and release
~(1). To
express-close, fully press and
release
g(1). To stop the sunroof
partway, press either switch a
second time.
The sunshade opens automatically
with the sunroof.
Open/Close (Manual Mode) : To
open the sunroof, press and hold
~(1). To close the sunroof, press
and hold
g(1). To stop the
sunroof partway, release the switch.
The sunshade opens automatically
with the sunroof.
Vent : Press
~(1) to vent the
sunroof. Press
g(1) to close the
sunroof vent. Power Sunshade Switch (Sunroof)
Open/Close :
Press
C(3) to open
the front sunshade. Press
g(3) to
close the front sunshade.
The sunroof has an automatic
reversal system. See Sunroof050.
For the rear window sunshade, see
Rear Window Sunshade 050.
eAssist Features
eAssist Overview
Vehicles with the 2.5L engine have
eAssist, with additional features that
contribute to increased efficiency.
Vehicles with eAssist have an
automatic engine Stop/Start feature.
This feature saves fuel by shutting
the engine off when the vehicle is
stopped. When the engine shuts off
automatically, all the accessories
will continue to operate normally. In
very hot or cold conditions, the
engine may not shut off. See
Starting the Engine 0177.
There are two air conditioning
settings available. The MAX setting
maximizes cabin comfort. The ECO
setting maximizes efficiency
allowing more frequent, and longer
engine stops than the MAX setting.
See Dual Automatic Climate Control
System 0157.
Vehicles with eAssist include an
AUTO STOP indicator on the
tachometer. See Instrument Cluster
0 114.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
28 Keys, Doors, and Windows
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . . 29
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . . 29
Remote Vehicle Start . . . . . . . . . . 35
Door Locks . . . . . . . . . . . . . . . . . . . . 37
Power Door Locks . . . . . . . . . . . . . 39
Delayed Locking . . . . . . . . . . . . . . . 39
Automatic Door Locks . . . . . . . . . 39
Lockout Protection . . . . . . . . . . . . . 40
Safety Locks . . . . . . . . . . . . . . . . . . . 40
Doors
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . 43
Vehicle Alarm System . . . . . . . . . 43
Immobilizer . . . . . . . . . . . . . . . . . . . . 44
Immobilizer Operation . . . . . . . . . 44
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . 45
Power Mirrors . . . . . . . . . . . . . . . . . . 45 Folding Mirrors . . . . . . . . . . . . . . . . . 46
Heated Mirrors . . . . . . . . . . . . . . . . . 46
Automatic Dimming Mirror . . . . . 46
Reverse Tilt Mirrors . . . . . . . . . . . . 46
Interior Mirrors
Interior Rearview Mirrors . . . . . . . 47
Automatic Dimming Rearview
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . 47
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . 47
Power Windows . . . . . . . . . . . . . . . 47
Sun Visors . . . . . . . . . . . . . . . . . . . . . 49
Rear Window Sunshade . . . . . . . 50
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 50
Keys and Locks
Keys
{Warning
Leaving children in a vehicle with
a Remote Keyless Entry (RKE)
transmitter is dangerous and
children or others could be
seriously injured or killed. They
could operate the power windows
or other controls or make the
vehicle move. The windows will
function 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 an RKE
transmitter.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
Keys, Doors, and Windows 47
Interior Mirrors
Interior Rearview Mirrors
Adjust the rearview mirror for a clear
view of the area behind the vehicle.
Do not spray glass cleaner directly
on the mirror. Use a soft towel
dampened with water.
Automatic Dimming
Rearview Mirror
The rearview mirror automatically
dims to reduce 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
Keys028.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
50 Keys, Doors, and Windows
Rear Window Sunshade
If equipped, the rear window
sunshade switch is on the overhead
console. To open the sunshade,
press and release the switch. 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 on or in ACC/
ACCESSORY.When shifting the vehicle into
R (Reverse), the sunshade will
automatically retract if it is
extended.
Roof
Sunroof
1. Sunroof Switch
2. Power Sunshade
Switch (Rear)
3. Power Sunshade Switch (Sunroof)
On vehicles with a sunroof, the
switches are on the overhead
console.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
Keys, Doors, and Windows 51
The ignition must be on or in ACC/
ACCESSORY, or Retained
Accessory Power (RAP) must be
active. SeeRetained Accessory
Power (RAP) 0181.
Sunroof Switch
Express-Open/Express-Close : To
express-open the sunroof, fully
press and release
~(1). To
express-close, fully press and
release
g(1). To stop the sunroof
partway, press either switch a
second time.
The sunshade opens automatically
with the sunroof.
Open/Close (Manual Mode) : To
open the sunroof, press and hold
~(1). To close the sunroof, press
and hold
g(1). To stop the
sunroof partway, release the switch.
The sunshade opens automatically
with the sunroof.
Vent : Press
~(1) to vent the
sunroof. Press
g(1) to close the
sunroof vent. Power Sunshade Switch (Sunroof)
Open/Close :
Press
C(3) to open
the front sunshade. Press
g(3) to
close the front sunshade.
For the rear window sunshade, refer
to Rear Window Sunshade 050.
Automatic Reversal System
The sunroof has an automatic
reversal system that is only active
when the sunroof is operated in
express-close mode.
If an object is in the path while
express closing, the reversal system
will detect an object, stop, and open
the sunroof again.
If frost or other conditions prevent
closing, override the feature by
closing the sunroof in manual
mode. To stop 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-12032549) -
2019 - crc - 8/20/18
Seats and Restraints 71
Airbag System
The vehicle has the following
airbags:
.A frontal airbag for the driver
. A frontal airbag for the front
outboard passenger
. A knee airbag for the driver
. A knee 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
. Seat-mounted side impact
airbags for the second row
outboard passengers
. 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 All vehicle airbags have the word
AIRBAG on the trim or on a label
near the deployment opening.
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 knee airbags, the word AIRBAG
is on the lower part of the
instrument panel.
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 seat
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 seat belt, even with
airbags. Airbags are designed to
work with seat belts, not replace
them. Also, airbags are not
designed to inflate in every crash.
In some crashes seat belts are
the only restraint. See
When
Should an Airbag Inflate? 074.
Wearing your seat belt during a
crash helps reduce your chance
of hitting things inside the vehicle
or being ejected from it. Airbags
are “supplemental restraints” to
the seat belts. Everyone in the
vehicle should wear a seat belt
properly, whether or not there is
an airbag for that person.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
72 Seats and Restraints
{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
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. Seat belts help keep you
in position before and during a
crash. Always wear a seat belt,
even with airbags. The driver
should sit as far back as possible
while still maintaining control of
the vehicle. The seat 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.(Continued)
Warning (Continued)
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.
{Warning
Children who are up against,
or very close to, any airbag when
it inflates can be seriously injured
or killed. Always secure children
properly in the vehicle. To read
how, seeOlder Children 083 or
Infants and Young Children 085.
There is an airbag readiness light
on the instrument cluster, which
shows the airbag symbol. The
system checks the airbag electrical
system for malfunctions. The light
tells you if there is an electrical
problem. See Airbag Readiness
Light 0121.
Where Are the Airbags?
The driver frontal airbag is in the
center of the steering wheel.
The front outboard passenger
frontal airbag is in the passenger
side instrument panel.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
Seats and Restraints 73
The driver knee airbag is below the
steering column. The front outboard
passenger knee airbag is below the
glove box.Driver Side Shown, PassengerSide Similar
The driver and front outboard
passenger seat-mounted side
impact airbags are in the side of the
seatbacks closest to the door.
The roof-rail airbags for the driver,
front outboard passenger, and
second row outboard passengers
are in the ceiling above the side
windows.Rear Seat Driver Side Shown, Passenger Side Similar
On vehicles with second row
seat-mounted side impact airbags,
they are in the sides of the seatback
closest to the door.
{Warning
If something is between an
occupant and an airbag, the
airbag might not inflate properly
or it might force the object into
that person causing severe injury
or even death. The path of an (Continued)