Headlamps BUICK LACROSSE 2017 Owner's Manual

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
14 In Brief
Manual Folding Mirrors
The outside 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.
SeeFolding Mirrors 043.
Automatic Dimming Feature
If equipped, the driver outside mirror
automatically dims to reduce the
glare of headlamps from behind.
See Power Mirrors 043.
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.
Interior
Adjust the rearview mirror for a clear
view of the area behind your
vehicle. Automatic Dimming Rearview
Mirror
If equipped, automatic dimming
reduces the glare of the headlamps
from behind. This feature comes on
when the vehicle is started. See
Automatic Dimming Rearview Mirror
0
44.
Steering Wheel
Adjustment
To adjust the steering wheel:
1. Pull the lever down.
2. Move the steering wheel up or down. 3. Pull or push the steering wheel
closer or away from you.
4. Pull the lever up to lock the steering wheel in place.
Do not adjust the steering wheel
while driving.
Power Tilt and Telescoping
Steering Wheel
To adjust the steering wheel,
if equipped:
Press the control to move the tilt
and telescoping steering wheel up
and down or forward and rearward.
Do not adjust the steering wheel
while driving.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
16 In Brief
Exterior Lighting
The exterior lamp control is on the
instrument panel to the left of the
steering column.
There are four positions.
O:Turns off the automatic
headlamps and daytime running
lamps (DRL). Turn to the off position
again to turn the automatic
headlamps or DRL back on.
AUTO : Turns the exterior lamps on
and off automatically depending on
outside lighting.
;: Turns on the parking lamps
including all lamps, except the
headlamps.
5: Turns on the headlamps
together with the parking lamps and
instrument panel lights.
See:
. Exterior Lamp Controls 0148.
. Daytime Running Lamps (DRL)
0149.
Windshield Wiper/Washer
With the ignition in ACC/
ACCESSORY or ON/RUN/START,
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.
See Windshield Wiper/Washer
0 102.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Keys, Doors, and Windows 43
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 053. 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.
Heated Mirrors
If equipped with heated mirrors:
K:
The rear window defogger also
heats the outside mirrors.
See Dual Automatic Climate Control
System 0156.
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.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
44 Keys, Doors, and Windows
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.Interior Mirrors
Interior Rearview Mirrors
Adjust the rearview mirror for a clear
view of the area behind the vehicle.
Do not spray glass cleaner directly
on the mirror. Use a soft towel
dampened with water.
Automatic Dimming
Rearview Mirror
The rearview mirror automatically
dims to reduce the glare of the
headlamps from behind. This
feature comes on when the vehicle
is started.
Windows
{Warning
Never leave a child, a helpless
adult, or a pet alone in a vehicle,
especially with the windows
closed in warm or hot weather.
They can be overcome by the
extreme heat and suffer
permanent injuries or even death
from heat stroke.
The vehicle aerodynamics are
designed to improve fuel economy
performance. This may result in a

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Instruments and Controls 121
Security Light
The security light should come on
briefly as the engine is started. If it
does not come on, have the vehicle
serviced by your dealer. If the
system is working normally, the
indicator light turns off.
If the light stays on and the engine
does not start, there could be a
problem with the theft-deterrent
system. SeeImmobilizer Operation
0 41.
High-Beam On Light
This light comes on when the
high-beam headlamps are in use.
See Headlamp High/Low-Beam
Changer 0149.
Adaptive Forward
Lighting (AFL) Light
This light should come on briefly as
the vehicle is started. If it does not
come on, have the vehicle serviced
by your dealer.
This light comes on solid when
there is a problem with the AFL
system. It flashes when the system
is switching between lighting
modes. See Adaptive Forward
Lighting (AFL) 0150.
Front Fog Lamp Light
For vehicles with fog lamps, this
light comes on when the fog lamps
are on.
The light goes out when the fog
lamps are turned off. See Fog
Lamps 0151 for more information.
Lamps On Reminder
This light comes on when the
exterior lamps are in use. See
Exterior Lamp Controls 0148.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
148 Lighting
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . 148
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 149
Headlamp High/Low-Beam Changer . . . . . . . . . . . . . . . . . . . . 149
Flash-to-Pass . . . . . . . . . . . . . . . . 149
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . 149
Automatic Headlamp System . . . . . . . . . . . . . . . . . . . . . . 149
Adaptive Forward Lighting (AFL) . . . . . . . . . . . . . . . 150
Hazard Warning Flashers . . . . . 150
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . 151
Fog Lamps . . . . . . . . . . . . . . . . . . . 151
Interior Lighting
Instrument Panel Illumination Control . . . . . . . . . . . . . . . . . . . . . . 152
Dome Lamps . . . . . . . . . . . . . . . . . 152
Reading Lamps . . . . . . . . . . . . . . 152
Sun Visor Lamps . . . . . . . . . . . . . 153
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . . 153
Exit Lighting . . . . . . . . . . . . . . . . . . 153
Battery Load Management . . . 153
Battery Power Protection . . . . . 154
Exterior Lighting
Exterior Lamp Controls
The exterior lamp control is on the
instrument panel to the left of the
steering column.
There are four positions.
O: Turns off the automatic
headlamps and daytime running
lamps (DRL). Turn to the off position
again to turn the automatic
headlamps or DRL back on.
AUTO : Turns the exterior lamps on
and off automatically depending on
outside lighting.
;: Turns on the parking lamps
including all lamps, except the
headlamps.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Lighting 149
5:Turns on the headlamps
together with the parking lamps and
instrument panel lights.
Exterior Lamps Off
Reminder
A warning chime sounds if the driver
door is opened while the ignition is
off and the exterior lamps are on.
Headlamp High/
Low-Beam Changer
Push the turn signal lever away
from you and release to turn the
high beams on. To return to low
beams, push the lever again or pull
it toward you and release.
This indicator light turns on in the
instrument cluster when the
high-beam headlamps are on.
Flash-to-Pass
To flash the high beams, pull the
turn signal lever toward you, and
release.
Daytime Running
Lamps (DRL)
DRL can make it easier for others to
see the front of your vehicle during
the day. Fully functional DRL are
required on all vehicles first sold in
Canada.
If equipped with High Intensity
Discharge (HID) headlamps, the
dedicated DRL will come on when
all of the following conditions
are met:
. The ignition is on.
. The exterior lamps control is
in AUTO.
. The light sensor determines it is
daytime.
. The parking brake is released or
the vehicle is not in P (Park). When the DRL are on, the taillamps,
sidemarker lamps, instrument panel
lights, and other lamps will not
be on.
The DRL turn off when the
headlamps are turned to
Oor the
ignition is off. For vehicles first sold
in Canada, the DRL can only be
turned off when the transmission is
in P (Park).
This vehicle may have a DRL
disabling function. When the DRL
are on and a turn signal is activated,
the DRL on that side will be off until
the turn signal goes off.
Automatic Headlamp
System
When the exterior lamp control is
set to AUTO and it is dark enough
outside, the headlamps come on
automatically.

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
Lighting 151
Turn and Lane-Change
Signals
Move the lever all the way up or
down to signal a turn.
An arrow on the instrument cluster
flashes in the direction of the turn or
lane change.
Raise or lower the lever until the
arrow starts to flash to signal a lane
change. Hold it there until the lane
change is completed. If the lever is
briefly pressed and released, the
turn signal flashes three times.
The turn and lane-change signal
can be turned off manually by
moving the lever back to its original
position.If after signaling a turn or lane
change the arrow flashes rapidly or
does not come on, a signal bulb
might be burned out.
Have any burned out bulbs
replaced. If the bulb is not burned
out, check the fuse. See
Fuses and
Circuit Breakers 0249.
Fog Lamps
The fog lamps button is on the
instrument panel to left of the
steering wheel.
To turn on the fog lamps, the ignition
and the headlamps or parking lamps
must be on. If the fog lamps are turned on while
the exterior lamp control is in the
AUTO position, the headlamps
come on automatically.
9:
Press to turn on or off. An
indicator light on the instrument
cluster comes on when the fog
lamps are on.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
154 Lighting
voltage move up or down. This is
normal. If there is a problem, an
alert will be displayed.
The battery can be discharged at
idle if the electrical loads are very
high. This is true for all vehicles.
This is because the generator
(alternator) may not be spinning fast
enough at idle to produce all of the
power needed for very high
electrical loads.
A high electrical load occurs when
several of the following are on, such
as: headlamps, high beams, rear
window defogger, climate control fan
at high speed, heated seats, engine
cooling fans, trailer loads, and loads
plugged into accessory power
outlets.
EPM works to prevent excessive
discharge of the battery. It does this
by balancing the generator's output
and the vehicle's electrical needs.
It can increase engine idle speed to
generate more power whenever
needed. It can temporarily reduce
the power demands of some
accessories.Normally, these actions occur in
steps or levels, without being
noticeable. In rare cases at the
highest levels of corrective action,
this action may be noticeable to the
driver. If so, a DIC message might
be displayed and it is recommended
that the driver reduce the electrical
loads as much as possible.
Battery Power Protection
The battery saver feature is
designed to protect the vehicle's
battery.
If the exterior lamps or any interior
lamp is left on and the ignition is
turned off, the battery rundown
protection system automatically
turns the lamp off after about
10 minutes.