2018 BUICK LACROSSE horn

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
In Brief 7
1.Air Vents 0157.
2. Exterior Lamp Controls 0144.
Fog Lamps 0147.
Instrument Panel Illumination
Control 0148.
3. Turn and Lane-Change Signals
0147.
4. Tap Shift Controls (If Equipped). See Manual Mode
0 185.
5. Instrument Cluster 0110.
Driver Information Center (DIC)
Display. See Driver Information
Center (DIC) 0126.
6. Windshield Wiper/Washer
0105.
7. Hazard Warning Flashers
0146.
8. Light Sensor. See Automatic
Headlamp System 0145.
9. Infotainment 0151.
10. Dual Automatic Climate Control
System 0152.
11. Traction Control/Electronic
Stability Control 0190. Parking Assist Button. See
Driver Assistance Systems
0
203.
SPORT Button (If Equipped).
See Selective Ride Control
0 192.
Lane Keep Assist (LKA) 0216
(If Equipped).
Automatic Parking Assist
Button (If Equipped). See
Driver Assistance Systems
0 203.
12. Shift Lever. See Automatic
Transmission 0181.
13. ENGINE START/STOP Button (Out of View). See Ignition
Positions 0170.
14. Steering Wheel Controls. See the infotainment manual.
Driver Information Center (DIC)
Controls. See Driver
Information Center (DIC) 0126.
15. Horn 0105.
16. Steering Wheel Adjustment
0104 (Out of View). 17.
Cruise Control 0193 (If
Equipped).
Adaptive Cruise Control 0195
(If Equipped).
Forward Collision Alert (FCA)
System 0208 (If Equipped).
Heated Steering Wheel 0104
(If Equipped).
18. Head-Up Display (HUD) 0129
(If Equipped).
19. Hood Release (Out of View). SeeHood 0230.
20. Front Storage.
21. Data Link Connector (DLC) (Out of View). See Malfunction
Indicator Lamp (Check Engine
Light) 0117.
22. Electric Parking Brake 0188.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
Keys, Doors, and Windows 29
Q:Press to lock all doors.
The turn signal indicators may flash
and/or the horn may sound on the
second press to indicate locking.
See Vehicle Personalization 0133.
If the driver door is open when
Qis
pressed and enabled through
vehicle personalization, all doors will
lock and the driver door will
immediately unlock.
If the passenger door is open when
Qis pressed, all doors lock.
Pressing
Qmay also arm the
theft-deterrent system. See Vehicle
Alarm System 042.
K:Press to unlock the driver door.
Press again within five seconds to
unlock all doors. The RKE
transmitter can be programmed to
unlock all doors on the first button
press. See Vehicle Personalization
0 133.
The turn signal indicators may flash
to indicate unlocking. See Vehicle
Personalization 0133.
Pressing
Kwill disarm the
theft-deterrent system. See Vehicle
Alarm System 042.
Memory seat positions may be
recalled when unlocking the vehicle.
See Memory Seats 055 and
Vehicle Personalization 0133.
X:Press twice quickly to release
the trunk.
7: Press and release to initiate
vehicle locator. The exterior lamps
flash and the horn chirps three
times.
Press and hold
7for at least
three seconds to sound the panic
alarm. The horn sounds and the turn signals flash for 30 seconds
until
7is pressed again or the
vehicle is started.
/: If equipped, pressQand
release and then immediately press
and hold
/for at least
four seconds to start the engine
from outside the vehicle using the
RKE transmitter. See Remote
Vehicle Start 034.
Keyless Access Operation
If equipped with a Keyless Access
system, it allows for locking and
unlocking the doors and accessing
the trunk without removing the RKE
transmitter from your pocket, purse,
briefcase, etc. The RKE transmitter
should be within 1 m (3 ft) of the
trunk or door being opened. If the
vehicle has this feature, there will be
buttons on the outside of the door
handles.
Keyless Access can be
programmed to unlock all doors on
the first unlock/lock button press
from the driver door. See Vehicle
Personalization 0133.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
Keys, Doors, and Windows 31
untilQon the interior door is
pressed, or until the vehicle is
turned on.
Remote Left in Vehicle Alert
When the vehicle is turned off and
an RKE transmitter is left in the
vehicle, the horn will chirp three
times after all doors are closed. To
turn on or off see Vehicle
Personalization 0133.
Remote No Longer in Vehicle Alert
If the vehicle is on, with a door
open, and then all doors are closed,
the vehicle will check for RKE
transmitters inside. If an RKE
transmitter is not detected, the DIC
will display NO REMOTE
DETECTED and the horn will chirp
three times.
This occurs only once each time the
vehicle is driven.
See Vehicle Personalization 0133.
Key Access
To access a vehicle with a weak
transmitter battery, see Door Locks
0 36.Programming Transmitters to
the Vehicle
Only RKE transmitters programmed
to the vehicle will work. If a
transmitter is lost or stolen, a
replacement can be purchased and
programmed through your dealer.
The vehicle can be reprogrammed
so that lost or stolen transmitters no
longer work. Any remaining
transmitters will need to be
reprogrammed. Each vehicle can
have up to eight transmitters
matched to it.
Programming with Recognized
Transmitters
A new transmitter can be
programmed to the vehicle when
there are two recognized
transmitters. To program, the vehicle
must be off and all of the
transmitters, both currently
recognized and new, must be
with you.
1. Place the two recognized transmitters in the cupholder. 2. Remove the key lock cylinder
cap on the driver door handle.
See Door Locks 036.
3. Insert the vehicle key of the new transmitter into the key
lock cylinder on the outside of
the driver door and turn the key
to the unlock position five times
within 10 seconds.
The Driver Information Center
(DIC) displays READY FOR
REMOTE #2, 3, 4, or 5.
4. Place the new transmitter intothe transmitter pocket inside
the armrest storage area.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
Keys, Doors, and Windows 39
WhenQis 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 0133.
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).
To unlock the doors:
.
Press
Kon the power door lock
switch. .
Shift the transmission into
P (Park).
Automatic door locking cannot be
disabled. Automatic door unlocking
can be programmed. See Vehicle
Personalization 0133.
Lockout Protection
When locking is requested with the
driver door open and the ignition is
on or in ACC/ACCESSORY, all the
doors will lock and then the driver
door will unlock.
If the vehicle is off and locking is
requested while a door is open,
when all doors are closed the
vehicle will check for RKE
transmitters inside. If an RKE
transmitter is detected and the
number of RKE transmitters inside
has not reduced, the driver door will
unlock and the horn will sound three
times.
This can be manually overridden by
pressing and holding
Qon the
power door lock switch for at least
four seconds. Unlocked Door Anti-Lockout
Unlocked Door Anti-Lockout, when
on, will unlock the driver door if
locking is requested while the driver
door is open. This feature can be
turned on or off using the vehicle
personalization menus. See
Vehicle
Personalization 0133.
Safety Locks
The rear door safety locks prevent
passengers from opening the rear
doors from inside the vehicle.
Manual Safety Locks

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
Keys, Doors, and Windows 43
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.
Immobilizer
See Radio Frequency Statement
0 335.
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-10999169) -
2018 - crc - 3/28/17
Instruments and Controls 103
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 104
Steering Wheel Controls . . . . . . 104
Heated Steering Wheel . . . . . . . 104
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Windshield Wiper/Washer . . . . 105
Compass . . . . . . . . . . . . . . . . . . . . . 106
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 106
Power Outlets . . . . . . . . . . . . . . . . 106
Wireless Charging . . . . . . . . . . . . 108
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . 109
Instrument Cluster . . . . . . . . . . . . 110
Speedometer . . . . . . . . . . . . . . . . . 112
Odometer . . . . . . . . . . . . . . . . . . . . . 112
Tachometer . . . . . . . . . . . . . . . . . . . 112
Fuel Gauge . . . . . . . . . . . . . . . . . . . 113
Driver Efficiency Gauge (eAssist) . . . . . . . . . . . . . . . . . . . . 114
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 114
Seat Belt Reminders . . . . . . . . . . 115
Airbag Readiness Light . . . . . . . 115 Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . . 116
Charging System Light . . . . . . . 117
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . 117
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . 119
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 119
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 120
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . 120
Lane Keep Assist (LKA) Light . . . . . . . . . . . . . . . . . . . . . . . . 120
Vehicle Ahead Indicator . . . . . . 121
Traction Off Light . . . . . . . . . . . . . 121
StabiliTrak OFF Light . . . . . . . . . 121
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . 122
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . 122
Tire Pressure Light . . . . . . . . . . . 122
Engine Oil Pressure Light . . . . 123
Low Fuel Warning Light . . . . . . 123
Security Light . . . . . . . . . . . . . . . . . 124
High-Beam On Light . . . . . . . . . . 124
Adaptive Forward Lighting (AFL) Light . . . . . . . . . . . . . . . . . . 124
Front Fog Lamp Light . . . . . . . . . 124
Lamps On Reminder . . . . . . . . . 124 Cruise Control Light . . . . . . . . . . 125
Door Ajar Light . . . . . . . . . . . . . . . 125
Information Displays
Power Flows (eAssist) . . . . . . . . 125
Energy Information
(eAssist) . . . . . . . . . . . . . . . . . . . . 126
Driver Information Center (DIC) . . . . . . . . . . . . . . . . 126
Head-Up Display (HUD) . . . . . . 129
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . 132
Engine Power Messages . . . . . 132
Vehicle Speed Messages . . . . . 133
Vehicle Personalization
Vehicle Personalization . . . . . . . 133
Universal Remote System
Universal Remote System . . . . 140
Universal Remote System Programming . . . . . . . . . . . . . . . 140
Universal Remote System Operation . . . . . . . . . . . . . . . . . . . 142

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
Instruments and Controls 105
Horn
Pressaon the steering wheel pad
to sound the horn.
Windshield Wiper/Washer
With the ignition on or in ACC/
ACCESSORY, move the windshield
wiper lever to select the wiper
speed.
HI : Use for fast wipes.
LO : Use for slow wipes.
INT : Use for intermittent wipes. To
adjust wipe frequency, turn the band
up for more frequent wipes or down
for less frequent wipes.
OFF : Use to turn the wipers off.
1x : For a single wipe, briefly move
the wiper lever down. For several
wipes, hold the wiper lever down.
f: Pull the windshield wiper
lever toward you to spray windshield
washer fluid and activate the wipers.
The wipers will continue until the
lever is released or the maximum
wash time is reached. When the
lever is released, additional wipes
may occur depending on how long
the windshield washer had been activated. See
Washer Fluid0245
for information on filling the
windshield washer fluid reservoir.
{Warning
In freezing weather, do not use
the washer until the windshield is
warmed. Otherwise the washer
fluid can form ice on the
windshield, blocking your vision.
Clear snow and ice from the wiper
blades before using them. If frozen
to the windshield, carefully loosen or
thaw them. Damaged blades should
be replaced. See Wiper Blade
Replacement 0249.
Heavy snow or ice can overload the
wiper motor.
Wipe Parking
If the ignition is turned off while the
wipers are on LO, HI, or INT, they
will immediately stop.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
Instruments and Controls 137
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. 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 028.
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