2019 BUICK LACROSSE ABS

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
Introduction 3
{Danger
Danger indicates a hazard with a
high level of risk which will result
in serious injury or death.
{Warning
Warning indicates a hazard that
could result in injury or death.
Caution
Caution indicates a hazard that
could result in property or vehicle
damage.
A circle with a slash through it is a
safety symbol which means“Do
Not,” “Do not do this,” or“Do not let
this happen.”
Symbols
The vehicle has components and
labels that use symbols instead of
text. Symbols are shown along with
the text describing the operation or
information relating to a specific
component, control, message,
gauge, or indicator.
M: Shown when the owner ’s
manual has additional instructions
or information.
*: Shown when the service
manual has additional instructions
or information.
0: Shown when there is more
information on another page —
“see page.” Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. See the
features in this manual for
information.
u:
Air Conditioning System
G:Air Conditioning Refrigerant Oil
9:Airbag Readiness Light
!:Antilock Brake System (ABS)
$:Brake System Warning Light
9:Dispose of Used Components
Properly
P: Do Not Apply High Pressure
Water
B: Engine Coolant Temperature
g: First Responder
_:Flame/Fire Prohibited
H:Flammable
[:Forward Collision Alert
R: Fuse Block Cover Lock
Location
+: Fuses

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
Keys, Doors, and Windows 39
1. Position the bottom edge of thecap under the lower edge of
the metal piece (2). The
tabs (3) attach to the metal
piece (2) at the positions (1)
2. Rotate the cap upward and install into place.
3. Check that the cap is secure.
Free-Turning Locks
The door key lock cylinder turns
freely when either the wrong key is
used, or the correct key is not fully
inserted. The free-turning door lock
feature prevents the lock from being
forced open. To reset the lock, turn
it to the vertical position with the
correct key fully inserted. Remove
the key and insert it again. If this
does not reset the lock, turn the key
halfway around in the cylinder and
repeat the reset procedure.
Power Door Locks
K: Press to unlock the doors.
Q: Press to lock the doors.
The indicator light in the switch will
illuminate when activated.
Delayed Locking
This feature delays the locking of
the doors until five seconds after all
doors are closed.
Delayed locking can only be turned
on when the Unlocked Door
Anti-Lockout has been turned off. When
Qis pressed on the power
door lock switch while the door is
open, a chime will sound three
times indicating delayed locking is
active.
The doors will lock automatically
five seconds after all doors are
closed. If a door is reopened before
that time, the five-second timer will
reset when all doors are closed
again.
Press
Qon the door lock switch
again or press
Qon the RKE
transmitter to lock the doors
immediately.
This feature can also be
programmed. See Vehicle
Personalization 0138.
Automatic Door Locks
The doors will lock automatically
when all doors are closed, the
ignition is on, and the vehicle is
shifted out of P (Park).

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
Instruments and Controls 105
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 106
Steering Wheel Controls . . . . . . 106
Heated Steering Wheel . . . . . . . 106
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Windshield Wiper/Washer . . . . 107
Compass . . . . . . . . . . . . . . . . . . . . . 108
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 108
Power Outlets . . . . . . . . . . . . . . . . 108
Wireless Charging . . . . . . . . . . . . 110
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . 113
Instrument Cluster . . . . . . . . . . . . 114
Speedometer . . . . . . . . . . . . . . . . . 116
Odometer . . . . . . . . . . . . . . . . . . . . . 116
Tachometer . . . . . . . . . . . . . . . . . . . 116
Fuel Gauge . . . . . . . . . . . . . . . . . . . 117
Driver Efficiency Gauge (eAssist) . . . . . . . . . . . . . . . . . . . . 118
Engine Oil Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 118 Engine Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 119
Voltmeter Gauge . . . . . . . . . . . . . . 119
Seat Belt Reminders . . . . . . . . . 120
Airbag Readiness Light . . . . . . . 121
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . 121
Charging System Light . . . . . . . 122
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . 122
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . 124
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 125
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 125
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . 125
Lane Keep Assist (LKA) Light . . . . . . . . . . . . . . . . . . . . . . . . 126
Vehicle Ahead Indicator . . . . . . 126
Traction Off Light . . . . . . . . . . . . . 126
StabiliTrak OFF Light . . . . . . . . . 127
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . 127
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . 127
Tire Pressure Light . . . . . . . . . . . 128
Engine Oil Pressure Light . . . . 128
Low Fuel Warning Light . . . . . . 129 Security Light . . . . . . . . . . . . . . . . . 129
High-Beam On Light . . . . . . . . . . 129
Adaptive Forward Lighting
(AFL) Light . . . . . . . . . . . . . . . . . . 129
Front Fog Lamp Light . . . . . . . . . 130
Lamps On Reminder . . . . . . . . . 130
Cruise Control Light . . . . . . . . . . 130
Door Ajar Light . . . . . . . . . . . . . . . 130
Information Displays
Power Flows (eAssist) . . . . . . . . 131
Energy Information
(eAssist) . . . . . . . . . . . . . . . . . . . . 131
Driver Information Center (DIC) . . . . . . . . . . . . . . . . 131
Head-Up Display (HUD) . . . . . . 134
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . 137
Engine Power Messages . . . . . 138
Vehicle Speed Messages . . . . . 138
Vehicle Personalization
Vehicle Personalization . . . . . . . 138
Universal Remote System
Universal Remote System . . . . 145
Universal Remote System Programming . . . . . . . . . . . . . . . 145
Universal Remote System Operation . . . . . . . . . . . . . . . . . . . 148

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
Instruments and Controls 125
Warning (Continued)
Driving with the brake system
warning light on can lead to a
crash. If the light is still on after
the vehicle has been pulled off
the road and carefully stopped,
have the vehicle towed for
service.
Electric Parking Brake
Light
MetricEnglish
This light comes on when the
parking brake is applied. If the light
continues flashing after the parking
brake is released, or while driving,
there is a problem with the Electric
Parking Brake system. A message
may also display in the Driver
Information Center (DIC). If the light does not come on,
or remains flashing, see your dealer.
Service Electric Parking
Brake Light
This light should come on briefly
when starting the vehicle. If it does
not come on, have it fixed so it will
be ready to warn if there is a
problem.
If this light stays on, take the vehicle
to your dealer as soon as possible.
See the information for the Electric
Parking Brake under
Electric
Parking Brake 0193. A message
may also display in the Driver
Information Center (DIC).
Antilock Brake System
(ABS) Warning Light
This light comes on briefly when the
engine is started.
If the light does not come on, have it
fixed so it will be ready to warn if
there is a problem.
If the light comes on while driving,
stop as soon as it is safely possible
and turn off the vehicle. Then start
the engine again to reset the
system. If the ABS light stays on,
or comes on again while driving, the
vehicle needs service. A chime may
also sound when the light comes on
steady.
If the ABS light is the only light on,
the vehicle has regular brakes, but
the antilock brakes are not
functioning.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
126 Instruments and Controls
If both the ABS and the brake
system warning light are on, the
vehicle's antilock brakes are not
functioning and there is a problem
with the regular brakes. See your
dealer for service.
SeeBrake System Warning Light
0 124.
Lane Keep Assist (LKA)
Light
This light is green if LKA is available
to assist.
LKA may assist by gently turning
the steering wheel if the vehicle
approaches a detected lane marking
without using the turn signal in that
direction. The LKA light will turn
amber. This light is amber and flashes as a
Lane Departure Warning (LDW)
alert, to indicate that the lane
marking has been crossed.
See
Lane Keep Assist (LKA) 0222.
Vehicle Ahead Indicator
If equipped, this indicator will
display green when a vehicle is
detected ahead and amber when
you are following a vehicle ahead
much too closely.
See Forward Collision Alert (FCA)
System 0214.
Traction Off Light
This light comes on briefly while
starting the engine. If it does not,
have the vehicle serviced by your
dealer. If the system is working
normally, the indicator light then
turns off.
The traction off light comes on when
the Traction Control System (TCS)
has been turned off by pressing and
releasing the TCS/StabiliTrak/ESC
button.
This light and the StabiliTrak/ESC
OFF light come on when StabiliTrak/
Electronic Stability Control (ESC) is
turned off.
If the TCS is off, wheel spin is not
limited. Adjust driving accordingly.
See Traction Control/Electronic
Stability Control 0196.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
164 Driving and Operating
Driving and
Operating
Driving Information
Distracted Driving . . . . . . . . . . . . 165
Defensive Driving . . . . . . . . . . . . . 166
Drunk Driving . . . . . . . . . . . . . . . . . 166
Control of a Vehicle . . . . . . . . . . . 166
Braking . . . . . . . . . . . . . . . . . . . . . . . 166
Steering . . . . . . . . . . . . . . . . . . . . . . 167
Off-Road Recovery . . . . . . . . . . . 168
Loss of Control . . . . . . . . . . . . . . . 168
Driving on Wet Roads . . . . . . . . 169
Hill and Mountain Roads . . . . . 169
Winter Driving . . . . . . . . . . . . . . . . 170
If the Vehicle Is Stuck . . . . . . . . 171
Vehicle Load Limits . . . . . . . . . . . 172
Starting and Operating
New Vehicle Break-In . . . . . . . . . 175
Ignition Positions . . . . . . . . . . . . . 176
Starting the Engine . . . . . . . . . . . 177
Stop/Start System (WithouteAssist) . . . . . . . . . . . . . . . . . . . . . 178
Stop/Start System (With eAssist) . . . . . . . . . . . . . . . . . . . . . 179
Engine Heater . . . . . . . . . . . . . . . . 180 Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . 181
Shifting Into Park . . . . . . . . . . . . . 182
Shifting out of Park . . . . . . . . . . . 182
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . 185
Active Fuel Management . . . . . 185
Extended Parking . . . . . . . . . . . . 185
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 186
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . 186
Automatic Transmission
Automatic Transmission . . . . . . 187
Manual Mode . . . . . . . . . . . . . . . . . 191
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . 192
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . . 193
Electric Parking Brake . . . . . . . . 193
Brake Assist . . . . . . . . . . . . . . . . . . 195
Hill Start Assist (HSA) . . . . . . . . 195
Regenerative Braking (eAssist) . . . . . . . . . . . . . . . . . . . . 196
Ride Control Systems
Traction Control/ElectronicStability Control . . . . . . . . . . . . . 196
Selective Ride Control . . . . . . . . 198
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . 199
Adaptive Cruise Control . . . . . . 201
Driver Assistance Systems
Driver Assistance Systems . . . 208
Assistance Systems for Parking or Backing . . . . . . . . . . 210
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . 214
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . 214
Forward Automatic Braking (FAB) . . . . . . . . . . . . . . . 216
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . 218
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . . . . 220
Lane Change Alert (LCA) . . . . . 220
Lane Departure Warning (LDW) . . . . . . . . . . . . . 222
Lane Keep Assist (LKA) . . . . . . 222
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . 224
Recommended Fuel . . . . . . . . . . 224

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
Driving and Operating 167
Once the power assist is used up, it
can take longer to stop and the
brake pedal will be harder to push.
Steering
Variable Effort Steering
The vehicle has a steering system
that varies the amount of effort
required to steer the vehicle in
relation to the speed of the vehicle.
The amount of steering effort
required is less at slower speeds to
make the vehicle more
maneuverable and easier to park. At
faster speeds, the steering effort
increases to provide a sport-like feel
to the steering. This provides
maximum control and stability.
Electric Power Steering
The vehicle has electric power
steering. It does not have power
steering fluid. Regular maintenance
is not required.If power steering assist is lost due
to a system malfunction, the vehicle
can be steered, but may require
increased effort. See your dealer if
there is a problem.
If the steering wheel is turned until it
reaches the end of its travel and is
held against that position for an
extended period of time, power
steering assist may be reduced.
If the steering assist is used for an
extended period of time while the
vehicle is not moving, power assist
may be reduced.
Normal use of the power steering
assist should return when the
system cools down.
See your dealer if there is a
problem.Curve Tips
.
Take curves at a reasonable
speed.
. Reduce speed before entering a
curve.
. Maintain a reasonable steady
speed through the curve. .
Wait until the vehicle is out of
the curve before accelerating
gently into the straightaway.
Steering in Emergencies
.There are some situations when
steering around a problem may
be more effective than braking.
. Holding both sides of the
steering wheel allows you to turn
180 degrees without removing
a hand.
. Antilock Brake System (ABS)
allows steering while braking.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
170 Driving and Operating
Warning (Continued)
reduce brake performance, and
could result in a loss of braking.
Shift the transmission to a lower
gear to let the engine assist the
brakes on a steep downhill slope.
{Warning
Coasting downhill in N (Neutral)
or with the ignition off is
dangerous. This can cause
overheating of the brakes and
loss of steering assist. Always
have the engine running and the
vehicle in gear.
. Drive at speeds that keep the
vehicle in its own lane. Do not
swing wide or cross the
center line.
. Be alert on top of hills;
something could be in your lane
(e.g., stalled car, crash). .
Pay attention to special road
signs (e.g., falling rocks area,
winding roads, long grades,
passing or no-passing zones)
and take appropriate action.
Winter Driving
Driving on Snow or Ice
Snow or ice between the tires and
the road creates less traction or
grip, so drive carefully. Wet ice can
occur at about 0 °C (32 °F) when
freezing rain begins to fall. Avoid
driving on wet ice or in freezing rain
until roads can be treated.
For Slippery Road Driving:
.Accelerate gently. Accelerating
too quickly causes the wheels to
spin and makes the surface
under the tires slick.
. Turn on Traction Control. See
Traction Control/Electronic
Stability Control 0196.
. Antilock Brake System (ABS)
improves vehicle stability during
hard stops, but the brakes
should be applied sooner than when on dry pavement. See
Antilock Brake System (ABS)
0
193.
. Allow greater following distance
and watch for slippery spots. Icy
patches can occur on otherwise
clear roads in shaded areas.
The surface of a curve or an
overpass can remain icy when
the surrounding roads are clear.
Avoid sudden steering
maneuvers and braking while
on ice.
. Turn off cruise control.
. Select All-Wheel Drive (AWD)
mode. See All-Wheel Drive
0 192.
Blizzard Conditions
Stop the vehicle in a safe place and
signal for help. Stay with the vehicle
unless there is help nearby.
If possible, use Roadside
Assistance. See Roadside
Assistance Program 027. To get
help and keep everyone in the
vehicle safe: