keyless BUICK LACROSSE 2017 User Guide

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Keys, Doors, and Windows 39
Warning (Continued)
highest setting. See
“Climate Control Systems”
in the Index.
. If the vehicle has a power
liftgate, disable the power
liftgate function.
For more information about
carbon monoxide, see Engine
Exhaust 0180.
Remote Trunk Release
.
To open the trunk, press|on
the driver door when the vehicle
is off or in P (Park).
. To open the trunk from outside
the vehicle, press
Xtwice
quickly on the Remote Keyless
Entry (RKE) transmitter.
. Press the bottom of the emblem
above the license plate when all
doors are unlocked or when the
transmitter is within 1 m (3 ft) of
the rear of the vehicle.
Emergency Trunk Release
Handle
Caution
Do not use the emergency trunk
release handle as a tie-down or
anchor point when securing items
in the trunk as it could damage
the handle.
There is a glow-in-the-dark
emergency trunk release handle on
the trunk lid. This handle will glow
following exposure to light. Pull the
release handle to open the trunk
from the inside.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
40 Keys, Doors, and Windows
If equipped with a power trunk, the
emergency trunk release handle will
power open the trunk.
After pulling the emergency trunk
release handle, push the handle
back into the bezel.
Vehicle Security
This vehicle has theft-deterrent
features; however, they do not make
the vehicle impossible to steal.
Vehicle Alarm System
This vehicle has an anti-theft alarm
system.
The indicator light, on the
instrument panel near the
windshield, indicates the status of
the system.
Off :Alarm system is disarmed. On Solid :
Vehicle is secured
during the delay to arm the system.
Fast Flash : Vehicle is unsecured.
A door, the hood, or the trunk
is open.
Slow Flash : Alarm system is
armed.
Arming the Alarm System
1. Turn off the vehicle.
2. Lock the vehicle in one of three ways:
.Use the RKE transmitter.
. Use the Keyless Access
system, if equipped.
. With a door open, press
Q
on the interior of the door.
3. After 30 seconds the alarm system will arm, and the
indicator light will begin to
slowly flash indicating the
alarm system is operating.
Pressing
Qon the RKE
transmitter a second time will
bypass the 30-second delay
and immediately arm the alarm
system.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Keys, Doors, and Windows 41
The vehicle alarm system will not
arm if the doors are locked with
the key.
If the driver door is opened without
first unlocking with the RKE
transmitter, the horn will chirp and
the lights will flash to indicate
pre-alarm. If the vehicle is not
started, or the door is not unlocked
by pressing
Kon the RKE
transmitter during the 10-second
pre-alarm, the alarm will be
activated.
The alarm will also be activated if a
passenger door, the trunk, or the
hood is opened without first
disarming the system. When the
alarm is activated, the turn signals
flash and the horn sounds for about
30 seconds. The alarm system will
then re-arm to monitor for the next
unauthorized event.
Disarming the Alarm System
To disarm the alarm system or turn
off the alarm if it has been activated,
do one of the following:
. Press
Kon the RKE transmitter. .
Unlock the vehicle using the
Keyless Access system,
if equipped.
. Start the vehicle.
To avoid setting off the alarm by
accident:
. Lock the vehicle after all
occupants have left the vehicle
and all doors are closed.
. Always unlock a door with the
RKE transmitter or use the
Keyless Access system.
Unlocking the driver door with the
key will not disarm the alarm system
or turn off the alarm.
How to Detect a Tamper
Condition
IfKis pressed on the transmitter
and the horn chirps and the lights
flash three times, the alarm was
activated while the system was
armed.
If the alarm has been activated, a
message will appear on the DIC.
See Security Messages 0135.
Immobilizer
See Radio Frequency Statement
0 321.
Immobilizer Operation
This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed.
The vehicle is automatically
immobilized when the transmitter
leaves the vehicle.
The immobilization system is
disarmed when the ignition button is
pressed and a valid transmitter is
found in the vehicle.
The security light on the instrument
cluster comes on when there is a
problem with arming or disarming
the theft-deterrent system.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
42 Keys, Doors, and Windows
The system has one or more
transmitters matched to an
immobilizer control unit in the
vehicle. Only a correctly matched
transmitter will start the vehicle.
If the transmitter is ever damaged,
you may not be able to start the
vehicle.
When trying to start the vehicle, the
security light comes on briefly when
the ignition is turned on.
If the vehicle does not start and the
security light stays on, there is a
problem with the system. Turn the
vehicle off and try again.
If the RKE transmitter appears to be
undamaged, try another transmitter,
or place the transmitter in the
transmitter pocket. See“Starting the
Vehicle with a Low Transmitter
Battery” underRemote Keyless
Entry (RKE) System Operation 027. If the vehicle does not start with the
other transmitter or when the
transmitter is in the transmitter
pocket, the vehicle needs service.
See your dealer who can service
the theft-deterrent system and have
a new transmitter programmed to
the vehicle.
Do not leave the transmitter or
device that disarms or deactivates
the theft-deterrent system in the
vehicle.Exterior Mirrors
Convex Mirrors
{Warning
A convex mirror can make things,
like other vehicles, look farther
away than they really are. If you
cut too sharply into the right lane,
you could hit a vehicle on the
right. Check the inside mirror or
glance over your shoulder before
changing lanes.
The passenger side mirror is convex
shaped. A convex mirror's surface is
curved so more can be seen from
the driver seat.

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
116 Instruments and Controls
not used to perform an Emissions
Inspection/Maintenance test or to
service the vehicle may affect
vehicle operation. SeeAdd-On
Electrical Equipment 0225. See
your dealer if assistance is needed.
The vehicle may not pass
inspection if:
. The light is on when the engine
is running.
. The light does not come on
when the ignition is in ON/RUN
with the engine not running for
Key Access or in Service Only
Mode for Keyless Access.
. Critical emission control systems
have not been completely
diagnosed. If this happens, the
vehicle would not be ready for
inspection and might require
several days of routine driving
before the system is ready for
inspection. This can happen if
the 12-volt battery has recently
been replaced or run down, or if
the vehicle has been recently
serviced. See your dealer if the vehicle will
not pass or cannot be made ready
for the test.
Brake System Warning
Light
The vehicle brake system consists
of two hydraulic circuits. If one
circuit is not working, the remaining
circuit can still work to stop the
vehicle. For normal braking
performance, both circuits need to
be working.
If the warning light comes on, there
is a brake problem. Have the brake
system inspected right away.
MetricEnglish
This light should come on briefly
when the engine is started. If it does
not come on then, have it fixed so it
will be ready to warn you if there is
a problem. If the light comes on and stays on,
there is a brake problem.
{Warning
The brake system might not be
working properly if the brake
system warning light is on.
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
The parking brake status light
comes on when the brake is
applied. If the light continues

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
132 Instruments and Controls
OIL PRESSURE LOW—STOP
ENGINE
This message displays if low oil
pressure levels occur. Stop the
vehicle as soon as safely possible
and do not operate it until the cause
of the low oil pressure has been
corrected. Check the oil as soon as
possible and have the vehicle
serviced by your dealer.
Engine Power Messages
ENGINE POWER IS REDUCED
This message displays when the
vehicle's engine power is reduced.
Reduced engine power can affect
the vehicle's ability to accelerate.
If this message is on, but there is no
reduction in performance, proceed
to your destination. The
performance may be reduced the
next time the vehicle is driven. The
vehicle may be driven at a reduced
speed while this message is on, but
maximum acceleration and speed
may be reduced. Anytime this
message stays on, or displays repeatedly, the vehicle should be
taken to your dealer for service as
soon as possible.
Fuel System Messages
FUEL LEVEL LOW
This message displays when the
vehicle is low on fuel. Refuel as
soon as possible.
Key and Lock Messages
NO REMOTE DETECTED
This message displays when the
transmitter battery may be weak.
See
“Starting the Vehicle with a Low
Transmitter Battery” underRemote
Keyless Entry (RKE) System
Operation 027.
NO REMOTE DETECTED
PRESS BRAKE TO RESTART
This message displays when
attempting to turn off the vehicle
and the RKE transmitter is no longer
detected. Restarting is allowed
without the RKE transmitter for five minutes. Press the brake pedal
and ENGINE START/STOP to
restart the vehicle.
NO REMOTE KEY WAS
DETECTED PLACE KEY IN
TRANSMITTER POCKET THEN
START YOUR VEHICLE
This message displays when trying
to start the vehicle if an RKE
transmitter is not detected. The
transmitter battery may be weak.
See
“Starting the Vehicle with a Low
Transmitter Battery” underRemote
Keyless Entry (RKE) System
Operation 027.
REMOTE LEFT IN VEHICLE
This message displays when
leaving the vehicle with the RKE
transmitter still inside.
REPLACE BATTERY IN
REMOTE KEY
This message displays when the
battery in the RKE transmitter needs
to be replaced.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
136 Instruments and Controls
Steering System
Messages
STEERING ASSIST IS
REDUCED DRIVE WITH CARE
This message may display if a
problem occurs with the electric
power steering system. If this
message appears, steering effort
may be slightly higher than normal.
The vehicle is still safe to drive. Use
caution while in reduced assist
mode. If this message is persistent
or appears repeatedly, take the
vehicle to your dealer for service.
SeeSteering 0165.
Starting the Vehicle
Messages
PRESS BRAKE TO START
This message is displayed when
attempting to start the vehicle
without first pressing the brake
pedal.
SERVICE KEYLESS START
SYSTEM
This message is displayed if there is
a problem with the pushbutton start
system. Take the vehicle to your
dealer for service.
Tire Messages
SERVICE TIRE MONITOR
SYSTEM
This message displays if there is a
problem with the Tire Pressure
Monitor System (TPMS). See Tire
Pressure Monitor Operation 0264.
TIRE LEARNING ACTIVE
This message displays when the
system is learning new tires. See
Tire Pressure Monitor Operation
0264.
TIRE PRESSURE LOW ADD
AIR TO TIRE
On vehicles with the Tire Pressure
Monitor System (TPMS), this
message displays when the
pressure in one or more of the
vehicle's tires is low. The low tire pressure warning light
will also come on. See
Tire
Pressure Light 0119.
If a tire pressure message displays,
inflate the tires until the tire pressure
is equal to the values shown on the
Tire and Loading Information label.
See Tires 0254, Vehicle Load
Limits 0170, and Tire Pressure
0 261.
More than one tire pressure
message can be received at a time.
The DIC also shows the tire
pressure values. See Driver
Information Center (DIC) 0122.
Transmission Messages
SERVICE TRANSMISSION
There may be a problem with the
transmission. See your dealer.
SERVICE TRANSMISSION
NOW UNABLE TO
SHIFT SOON
The transmission needs service.
Unless the vehicle is serviced, the
transmission will be unable to be

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Instruments and Controls 141
Automatic Vehicle Hold
This allows the duration of the
Automatic Vehicle Hold to be
changed. SeeAutomatic Vehicle
Hold (AVH) 0189.
Select Long and Auto Park Brake
On or Short and Auto Park
Brake Off.
Lighting
Select and the following may be
displayed:
. Vehicle Locator Lights
. Exit Lighting
Vehicle Locator Lights
This feature will flash the exterior
lamps when
Kon the Remote
Keyless Entry (RKE) transmitter is
pressed to locate the vehicle.
Select Off or On.
Exit Lighting
This allows the selection of how
long the exterior lamps stay on
when leaving the vehicle when it is
dark outside. Select Off, 30 Seconds, 60
Seconds, or 120 Seconds.
Power Door Locks
Select and the following may be
displayed:
.
Unlocked Door Anti Lock Out
. Auto Door Unlock
. Delayed Door Lock
Unlocked Door Anti Lock Out
When on, this feature will keep the
driver door from locking when the
door is open. If Off is selected, the
Delayed Door Lock menu will be
available.
Select Off or On.
Auto Door Unlock
This allows selection of which of the
doors will automatically unlock when
the vehicle is shifted into P (Park).
Select Off, All Doors, or Driver Door. Delayed Door Lock
When on, this feature will delay the
locking of the doors. To override the
delay, press the power door lock
switch on the door.
Select Off or On.
Remote Lock, Unlock, Start
Select and the following may be
displayed:
.
Remote Unlock Light Feedback
. Remote Lock Feedback
. Remote Door Unlock
. Remote Start Auto Cool Seats
. Remote Start Auto Heat Seats
. Passive Door Unlock
. Passive Door Lock
. Remote Left in Vehicle Alert
Remote Unlock Light Feedback
When on, the exterior lamps will
flash when unlocking the vehicle
with the RKE transmitter.
Select Off or Flash Lights.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
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142 Instruments and Controls
Remote Lock Feedback
This allows selection of what type of
feedback is given when locking the
vehicle with the RKE transmitter.
Select Off, Lights and Horn, Lights
Only, or Horn Only.
Remote Door Unlock
This allows selection of which doors
will unlock when pressing
Kon the
RKE transmitter.
Select All Doors or Driver Door.
Remote Start Auto Cool Seats
If equipped and turned on, this
feature will turn the ventilated seats
on when using remote start on
warm days.
Select Off, On-Driver and
Passenger, or On-Driver.
Remote Start Auto Heat Seats
If equipped and turned on, this
feature will turn the heated seats on
when using remote start on
cold days.
Select Off, On-Driver and
Passenger, or On-Driver. Passive Door Unlock
This allows the selection of what
doors will unlock when using the
button on the driver door to unlock
the vehicle.
Select All Doors or Driver Door.
Passive Door Lock
This allows passive locking to be
turned on or off and selects
feedback. See
Remote Keyless
Entry (RKE) System Operation 027.
Select Off, On with Horn
Chirp, or On.
Remote Left in Vehicle Alert
This feature sounds an alert when
the RKE transmitter is left in the
vehicle. This menu also enables
Remote No Longer in Vehicle Alert.
Select Off or On.
Bluetooth
Select and the following may be
displayed:
. Pair New Device
. Device Management
. Ringtones .
Voice Mail Numbers
. Text Message Alerts
Pair New Device
Select to pair a new device. See
“Pairing” in“Infotainment Controls”
under “Bluetooth” in the infotainment
manual.
Device Management
Select to connect to a different
phone source, disconnect a phone,
or delete a phone.
Ringtones
Press to change the ring tone for
the specific phone. The phone does
not need to be connected to change
the ring tone.
Voice Mail Numbers
This feature displays the voice mail
number for all connected phones.
To change the voice mail number,
select EDIT or press the EDIT
button. Type a new number, then
select SAVE or press the SAVE
button.