2019 BUICK LACROSSE light

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
In Brief 25
damaged if you try to do your own
service work. Service and repair of
these high voltage components
should only be performed by a
trained service technician with the
proper knowledge and tools. See
Doing Your Own Service Work
0236.Performance and
Maintenance
Traction Control/
Electronic Stability
Control
The Traction Control System (TCS)
limits wheel spin. The system turns
on automatically every time the
vehicle is started.
.
To turn off TCS, press and
release
gon the center stack.
iilluminates.
. Press and release
gagain to
turn on TCS.
. To turn off both TCS and
StabiliTrak/Electronic Stability
Control (ESC), press and hold
g
untiliandgilluminate.
. Press and release
gto turn on
both systems.
See Traction Control/Electronic
Stability Control 0196.
Tire Pressure Monitor
This vehicle may have a Tire
Pressure Monitor System (TPMS).
The low tire pressure warning light
alerts to a significant loss in
pressure of one of the vehicle's
tires. If the warning light comes on,
stop as soon as possible and inflate
the tires to the recommended
pressure shown on the Tire and
Loading Information label. See
Vehicle Load Limits 0172. The
warning light will remain on until the
tire pressure is corrected.
The low tire pressure warning light
may come on in cool weather when
the vehicle is first started, and then
turn off as the vehicle is driven. This
may be an early indicator that the

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
36 Keys, Doors, and Windows
Laws in some local communities
may restrict the use of remote
starters. For example, some laws
may require a person using remote
start to have the vehicle in view.
Check local regulations for any
requirements.
Starting the Engine Using Remote
Start
To start the engine using the remote
start feature:1. Aim the RKE transmitter at the vehicle.
2. Press and release
Q.
3. Immediately after completing Step 2, press and hold
/for at
least four seconds or until the
turn signal lamps flash. The
turn signal lamps flashing
confirms the request to remote
start the vehicle has been
received.
When the engine starts, the
parking lamps will turn on and
remain on as long as the engine is running. The doors
will be locked and the climate
control system may come on.
Start the engine to drive the vehicle.
The engine will shut off after
15 minutes unless a time extension
is done or the engine is started.
The climate control system will use
the previous setting during a remote
start. The rear defog may come on
during remote start based on cold
ambient conditions. The rear defog
indicator light does not come on
during remote start. Vehicles with
heated or heated and ventilated
front seats can have this feature
turn on automatically during a
remote start. See Vehicle
Personalization 0138.
Extending Engine Run Time
The engine run time can also be
extended by another 15 minutes,
if during the first 15 minutes
Steps 1–3 are repeated while the
engine is still running. An extension
can be requested, 30 seconds after
starting. This provides a total of
30 minutes. The remote start can only be
extended once.
When the remote start is extended,
the second 15-minute period is
added on to the first 15 minutes for
a total of 30 minutes.
A maximum of two remote starts,
or a remote start with an extension,
are allowed between ignition cycles.
The vehicle's ignition must be
turned on and then off before the
remote start procedure can be used
again.
Canceling a Remote Start
To cancel a remote start, do any of
the following:
.
Aim the RKE transmitter at the
vehicle and press and hold
/
until the parking lamps turn off.
. Turn on the hazard warning
flashers.
. Turn the vehicle on and then off.

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
42 Keys, Doors, and Windows
.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.
After pulling the emergency trunk
release handle, push the handle
back into the bezel.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
Keys, Doors, and Windows 43
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.
. 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.
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.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
44 Keys, Doors, and Windows
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.
. 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 Driver
Information Center (DIC).
Immobilizer
See Radio Frequency Statement
0 345.
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.
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.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
Keys, Doors, and Windows 45
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 029.
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.
Power Mirrors
To adjust the mirrors: 1. Press
}or|to select the
driver or passenger mirror.
2. Press the control button below (left, right, up, or down) to
adjust the mirror.
Vehicles with the memory feature
can store a preferred mirror position.
See Memory Seats 056.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-12032549) -
2019 - crc - 8/20/18
46 Keys, Doors, and Windows
Turn Signal Indicator
The vehicle may have a turn signal
indicator lamp built into the mirror
housing. The turn signal lamp
flashes when the turn signals or
hazard flashers are used.
Puddle Light
The vehicle may have a puddle light
on the mirror housings. The light will
illuminate the ground when the door
is opened.
Folding Mirrors
Manual Folding Mirrors
These mirrors can be folded inward
to prevent damage when going
through an automatic car wash. To
fold, pull the mirror toward the
vehicle. Push the mirror outward to
return it to the original position.
Memory Mirrors
The vehicle may have memory
mirrors. SeeMemory Seats 056. Lane Change Alert (LCA)
The vehicle may have LCA. See
Lane Change Alert (LCA)
0220.
Side Blind Zone Alert
The vehicle may have Side Blind
Zone Alert. See Side Blind Zone
Alert (SBZA) 0220.
Heated Mirrors
If equipped with heated mirrors:
K:The rear window defogger also
heats the outside mirrors.
See Dual Automatic Climate Control
System 0157.
Automatic Dimming
Mirror
If equipped, the vehicle has an
automatic dimming outside mirror(s).
The mirror(s) will adjust for the glare
of headlamps behind you.
Reverse Tilt Mirrors
If equipped with memory seats, the
passenger and/or driver mirror tilts
to a preselected position when the
vehicle is in R (Reverse). This
allows the curb to be seen when
parallel parking.
The mirror(s) return to the original
position when:
.
The vehicle is shifted out of
R (Reverse), or remains in
R (Reverse) for about
30 seconds.
. The ignition is turned off.
. The vehicle is driven in
R (Reverse) above a set speed.
To turn this feature on or off, see
Vehicle Personalization 0138.