airbag BUICK LACROSSE 2017 Owner's Guide

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
94 Seats and Restraints
position is used. See“Head
Restraint Removal and
Reinstallation” underLower Anchors
and Tethers for Children (LATCH
System) 085 for additional
information on installing the head
restraint properly.
Securing Child Restraints
(With the Safety Belt in
the Front Seat)
This vehicle has airbags. A rear
seat is a safer place to secure a
forward-facing child restraint. See
Where to Put the Restraint 084.
In addition, the vehicle has a
passenger sensing system which is
designed to turn off the front
outboard passenger frontal airbag
and knee airbag under certain
conditions.
See Passenger Sensing System
0 72 and Passenger Airbag Status
Indicator 0113 for more information,
including important safety
information. Never put a rear-facing child seat in
the front. This is because the risk to
the rear-facing child is so great if the
airbag deploys.
{Warning
A child in a rear-facing child
restraint can be seriously injured
or killed if the front outboard
passenger frontal airbag inflates.
This is because the back of the
rear-facing child restraint would
be very close to the inflating
airbag. A child in a forward-facing
child restraint can be seriously
injured or killed if the front
outboard passenger frontal airbag
inflates and the passenger seat is
in a forward position.
Even if the passenger sensing
system has turned off the front
outboard passenger airbag(s), no
system is fail-safe. No one can
guarantee that an airbag will not
(Continued)
Warning (Continued)
deploy under some unusual
circumstance, even though the
airbag(s) are off.
Secure rear-facing child restraints
in a rear seat, even if the
airbag(s) are off. If you secure a
forward-facing child restraint in
the front outboard passenger
seat, always move the seat as far
back as it will go. It is better to
secure the child restraint in a
rear seat.
SeePassenger Sensing System
0 72 for additional information.
If the child restraint uses a top
tether, see Lower Anchors and
Tethers for Children (LATCH
System) 085 for top tether anchor
locations.
Do not secure a child seat in a
position without a top tether anchor
if a national or local law requires
that the top tether be anchored, or if

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Seats and Restraints 95
the instructions that come with the
child restraint say that the top strap
must be anchored.
In Canada, the law requires that
forward-facing child restraints have
a top tether, and that the tether be
attached.
When using the lap-shoulder belt to
secure the child restraint in this
position, follow the instructions that
came with the child restraint and the
following instructions:1. Move the seat as far back as it will go before securing the
forward-facing child restraint.
Move the seat upward or the
seatback to an upright position,
if needed, to get a tight
installation of the child
restraint.
When the passenger sensing
system has turned off the front
outboard passenger frontal
airbag and knee airbag, the off
indicator on the passenger
airbag status indicator should
light and stay lit when you start
the vehicle. See Passenger
Airbag Status Indicator 0113. 2. Put the child restraint on
the seat.
3. Pick up the latch plate, and run the lap and shoulder portions
of the vehicle's safety belt
through or around the restraint.
The child restraint instructions
will show you how.
4. Push the latch plate into thebuckle until it clicks.
Position the release button on
the buckle, away from the child
restraint system, so that the
safety belt could be quickly
unbuckled if necessary.
5. Pull the shoulder belt all theway out of the retractor to set
the lock. When the retractor
lock is set, the belt can be
tightened but not pulled out of
the retractor.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
96 Seats and Restraints
6. To tighten the belt, push downon the child restraint, pull the
shoulder portion of the belt to
tighten the lap portion of the
belt, and feed the shoulder belt
back into the retractor. When
installing a forward-facing child
restraint, it may be helpful to
use your knee to push down on
the child restraint as you
tighten the belt.
Try to pull the belt out of the
retractor to make sure the
retractor is locked. If the
retractor is not locked, repeat
Steps 5 and 6. 7. Before placing a child in the
child restraint, make sure it is
securely held in place. To
check, grasp the child restraint
at the safety belt path and
attempt to move it side to side
and back and forth. When the
child restraint is properly
installed, there should be no
more than 2.5 cm (1 in) of
movement.
If the airbags are off, the off
indicator in the passenger airbag
status indicator will come on and
stay on when the vehicle is started.
If a child restraint has been installed
and the on indicator is lit, see “If the
On Indicator Is Lit for a Child
Restraint” underPassenger Sensing
System 072.
To remove the child restraint,
unbuckle the vehicle safety belt and
let it return to the stowed position.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
100 Instruments and Controls
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 101
Steering Wheel Controls . . . . . . 102
Heated Steering Wheel . . . . . . . 102
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Windshield Wiper/Washer . . . . 102
Compass . . . . . . . . . . . . . . . . . . . . . 103
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 103
Power Outlets . . . . . . . . . . . . . . . . 104
Wireless Charging . . . . . . . . . . . . 106
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . 107
Instrument Cluster . . . . . . . . . . . . 108
Speedometer . . . . . . . . . . . . . . . . . 110
Odometer . . . . . . . . . . . . . . . . . . . . . 110
Tachometer . . . . . . . . . . . . . . . . . . . 110
Fuel Gauge . . . . . . . . . . . . . . . . . . . 110
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . . 111
Safety Belt Reminders . . . . . . . . 112
Airbag Readiness Light . . . . . . . 113
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . 113 Charging System Light . . . . . . . 114
Malfunction Indicator Lamp
(Check Engine Light) . . . . . . . . 114
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . 116
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 116
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 117
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . 117
Lane Keep Assist (LKA) Light . . . . . . . . . . . . . . . . . . . . . . . . 117
Vehicle Ahead Indicator . . . . . . . 118
Traction Off Light . . . . . . . . . . . . . 118
StabiliTrak
®OFF Light . . . . . . . . 118
Traction Control System (TCS)/ StabiliTrak
®Light . . . . . . . . . . . . 119
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . 119
Tire Pressure Light . . . . . . . . . . . 119
Engine Oil Pressure Light . . . . 120
Low Fuel Warning Light . . . . . . 120
Security Light . . . . . . . . . . . . . . . . . 121
High-Beam On Light . . . . . . . . . . 121
Adaptive Forward Lighting (AFL) Light . . . . . . . . . . . . . . . . . . 121
Front Fog Lamp Light . . . . . . . . . 121
Lamps On Reminder . . . . . . . . . 121
Cruise Control Light . . . . . . . . . . 122
Door Ajar Light . . . . . . . . . . . . . . . 122
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . . 122
Head-Up Display (HUD) . . . . . . 125
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . 128
Battery Voltage and Charging Messages . . . . . . . . . . . . . . . . . . . 129
Brake System Messages . . . . . 129
Compass Messages . . . . . . . . . . 129
Cruise Control Messages . . . . . 130
Door Ajar Messages . . . . . . . . . . 130
Engine Cooling System Messages . . . . . . . . . . . . . . . . . . . 131
Engine Oil Messages . . . . . . . . . 131
Engine Power Messages . . . . . 132
Fuel System Messages . . . . . . . 132
Key and Lock Messages . . . . . 132
Lamp Messages . . . . . . . . . . . . . . 133
Object Detection System Messages . . . . . . . . . . . . . . . . . . . 133
Ride Control System Messages . . . . . . . . . . . . . . . . . . . 134
Airbag System Messages . . . . 135
Security Messages . . . . . . . . . . . 135
Service Vehicle Messages . . . . 135
Steering System Messages . . . . . . . . . . . . . . . . . . . 136
Starting the Vehicle Messages . . . . . . . . . . . . . . . . . . . 136

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
112 Instruments and Controls
English
This gauge shows the engine
coolant temperature.
If the gauge pointer moves toward
the warning area at the high end of
the gauge, the engine is too hot.
The engine coolant warning light
comes on when the engine is too
hot. See Engine Coolant
Temperature Warning Light 0119.
This reading indicates the same
thing as the warning light. It means
that the engine coolant has
overheated. If the vehicle has been
operating under normal driving
conditions, pull off the road, stop the vehicle, and turn off the engine as
soon as possible. See
Engine
Overheating 0239 for more
information.
Safety Belt Reminders
Driver Safety Belt Reminder
Light
There is a driver safety belt
reminder light on the instrument
cluster.
When the vehicle is started, this
light flashes and a chime may come
on to remind the driver to fasten
their safety belt. Then the light stays
on solid until the belt is buckled.
This cycle may continue several
times if the driver remains or
becomes unbuckled while the
vehicle is moving. If the driver safety belt is buckled,
neither the light nor the chime
comes on.
Passenger Safety Belt
Reminder Light
There is a passenger safety belt
reminder light near the passenger
airbag status indicator. See
Passenger Sensing System
072.
When the vehicle is started, this
light flashes and a chime may come
on to remind passengers to fasten
their safety belt. Then the light stays
on solid until the belt is buckled.
This cycle continues several times if
the passenger remains or becomes
unbuckled while the vehicle is
moving.
If the passenger safety belt is
buckled, neither the chime nor the
light comes on.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Instruments and Controls 113
The front passenger safety belt
reminder light and chime may turn
on if an object is put on the seat
such as a briefcase, handbag,
grocery bag, laptop, or other
electronic device. To turn off the
reminder light and/or chime, remove
the object from the seat or buckle
the safety belt.
Airbag Readiness Light
This light shows if there is an
electrical problem with the airbag
system. The system check includes
the airbag sensor(s), passenger
sensing system, the pretensioners,
the airbag modules, the wiring, and
the crash sensing and diagnostic
module. For more information on the
airbag system, seeAirbag System
0 66.
The airbag readiness light comes on
for several seconds when the
vehicle is started. If the light does
not come on then, have it fixed
immediately.
{Warning
If the airbag readiness light stays
on after the vehicle is started or
comes on while driving, it means
the airbag system might not be
working properly. The airbags in
the vehicle might not inflate in a
crash, or they could even inflate
without a crash. To help avoid
injury, have the vehicle serviced
right away.
Passenger Airbag Status
Indicator
The vehicle has a passenger
sensing system. See Passenger
Sensing System 072. The
overhead console has a passenger
airbag status indicator.
When the vehicle is started, the
passenger airbag status indicator
will light ON and OFF for several
seconds as a system check. Then,
after several more seconds, the
status indicator will light either ON
or OFF to let you know the status of
the front outboard passenger frontal
airbag and knee airbag.
If the word ON is lit on the
passenger airbag status indicator, it
means that the front outboard
passenger frontal airbag and knee
airbag are allowed to inflate.
If the word OFF is lit on the airbag
status indicator, it means that the
passenger sensing system has
turned off the front outboard
passenger frontal airbag and knee
airbag.
If, after several seconds, both status
indicator lights remain on, or if there
are no lights at all, there may be a

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
114 Instruments and Controls
problem with the lights or the
passenger sensing system. See
your dealer for service.
{Warning
If the airbag readiness light ever
comes on and stays on, it means
that something may be wrong
with the airbag system. To help
avoid injury to yourself or others,
have the vehicle serviced right
away. SeeAirbag Readiness
Light 0113 for more information,
including important safety
information.
Charging System Light
The charging system light comes on
briefly when the ignition is turned
on, but the engine is not running, as
a check to show the light is working. The light turns off when the engine
is started. If it does not, have the
vehicle serviced by your dealer.
If the light stays on, or comes on
while driving, there could be a
problem with the electrical charging
system. Have it checked by your
dealer. Driving while this light is on
could drain the battery.
If a short distance must be driven
with the light on, be sure to turn off
all accessories, such as the radio
and air conditioner.
Malfunction Indicator
Lamp (Check Engine
Light)
This light is part of the vehicle’s
emission control on-board
diagnostic system. If this light is on
while the engine is running, a
malfunction has been detected and
the vehicle may require service. The
light should come on to show that it
is working when the ignition is in
ON/RUN with the engine not
running for Key Access or in Service
Only Mode for Keyless Access. See
Ignition Positions
0173.
Malfunctions are often indicated by
the system before any problem is
noticeable. Being aware of the light
and seeking service promptly when
it comes on may prevent damage.
Caution
If the vehicle is driven continually
with this light on, the emission
control system may not work as
well, the fuel economy may be
lower, and the vehicle may not
run smoothly. This could lead to
costly repairs that might not be
covered by the vehicle warranty.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Instruments and Controls 135
.Worn out or overheated clutch
plates.
. Loss of fluids.
If this message appears, stop when
convenient and turn off the ignition
for 30 seconds. Restart the vehicle
and check for the message on the
DIC display. If the message has
gone off and stays off, it is not
necessary to take the vehicle to
your dealer. If the message still
displays or appears again when you
begin driving, the system needs
service. See your dealer.
SERVICE TRACTION
CONTROL
This message displays when there
is a problem with the Traction
Control System (TCS). When this
message is displayed, the system
will not limit wheel spin. Adjust your
driving accordingly. See your dealer
for service.
SERVICE STABILITRAK
This message displays if there is a
problem with the StabiliTrak system.
If this message appears, try to reset the system. Stop; turn off the engine
for at least 15 seconds; then start
the engine again. If this message
still comes on, it means there is a
problem. See your dealer for
service. The vehicle is safe to drive,
however, you do not have the
benefit of StabiliTrak, so reduce
your speed and drive accordingly.
SPORT MODE ON
This message displays when using
the Selective Ride Control. See
Selective Ride Control
0192.
TRACTION CONTROL OFF
This message displays when the
Traction Control System (TCS) is
turned off. Adjust your driving
accordingly.
Airbag System Messages
SERVICE AIRBAG
This message displays if there is a
problem with the airbag system. See
your dealer for service.
Security Messages
THEFT ATTEMPTED
This message displays if the vehicle
detects a tamper condition.
Service Vehicle Messages
SERVICE POWER STEERING
This message displays and a chime
may sound when there may be a
problem with the power steering
system. If this message displays
and a reduction in steering
performance or loss of power
steering assistance is noticed, see
your dealer.
SERVICE VEHICLE SOON
This message is displayed if there is
a problem with the vehicle. Take the
vehicle to your dealer for service.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
150 Lighting
There is a light sensor on top of the
instrument panel. Do not cover the
sensor; otherwise the headlamps
will come on when they are not
needed.
The system may also turn on the
headlamps when driving through a
parking garage or tunnel.
When it is bright enough outside,
the headlamps will turn off or may
change to Daytime Running
Lamps (DRL).
The automatic headlamp system
turns off when the exterior lamp
control is turned to
Oor the ignition
is off.
Adaptive Forward
Lighting (AFL)
If equipped, the AFL pivots the
headlamps horizontally to provide
greater road illumination while
turning. To enable AFL, set the
exterior lamp control to the AUTO
position. Moving the switch out of
the AUTO position deactivates the
system. AFL operates when the
vehicle speed is greater than 3 km/h
(2 mph). AFL does not operate
when the transmission is in
R (Reverse). AFL is not immediately
operable after starting the vehicle;
driving a short distance is required
to calibrate the AFL. See Exterior
Lamp Controls 0148.
Hazard Warning Flashers
|:Press to make the front and
rear turn signal lamps flash on and
off. Press again to turn the
flashers off.
The hazard warning flashers turn on
automatically if the airbags deploy.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
174 Driving and Operating
If the pushbutton start is not
working, the vehicle may be near a
strong radio antenna signal causing
interference to the Remote Keyless
Entry (RKE) system. SeeRemote
Keyless Entry (RKE) System
Operation 027.
To shift out of P (Park), the vehicle
must be in ON/RUN mode and the
brake pedal must be applied.
Stopping the Engine/OFF (No
Indicator Light) : When the vehicle
is stopped, press ENGINE START/
STOP once to turn the engine off.
The transmission will shift to
P (Park) automatically.
If the vehicle is in P (Park), the
ignition will turn off, and Retained
Accessory Power (RAP) will remain
active. See Retained Accessory
Power (RAP) 0178.
{Warning
Turning off the vehicle while
moving may cause loss of power
assist in the brake and steering
(Continued)
Warning (Continued)
systems and disable the airbags.
While driving, only shut the
vehicle off in an emergency.
If the vehicle must be shut off in an
emergency: 1. Brake using a firm and steady pressure. Do not pump the
brakes repeatedly. This may
deplete power assist, requiring
increased brake pedal force.
2. Shift the vehicle to N (Neutral). This can be done while the
vehicle is moving. After shifting
to N (Neutral), firmly apply the
brakes and steer the vehicle to
a safe location.
3. Come to a complete stop, shift to P (Park), and press ENGINE
START/STOP.
4. Set the parking brake. See Electric Parking Brake 0187. If the vehicle cannot be pulled over
and must be shut off while driving,
press and hold ENGINE START/
STOP for longer than two seconds,
or press twice in five seconds.
ACC/ACCESSORY (Amber
Indicator Light) :
This mode allows
you to use some electrical
accessories when the engine is off.
With the ignition off, pressing
ENGINE START/STOP once without
the brake pedal applied will place
the ignition system in ACC/
ACCESSORY.
The ignition will switch from ACC/
ACCESSORY to OFF after
10 minutes to prevent battery
rundown.
ON/RUN/START (Green Indicator
Light) : This mode is for driving and
starting. With the ignition off and the
brake pedal applied, pressing
ENGINE START/STOP once will
place the ignition system in ON/
RUN/START. Once engine cranking
begins, release the button. Engine
cranking will continue until the