2017 BUICK LACROSSE ignition

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Instruments and Controls 137
shifted out of P (Park) soon. Have
the vehicle serviced as soon as
possible.
SERVICE SHIFTER SEE
OWNER’S MANUAL
The shift lever needs service. Have
the vehicle serviced as soon as
possible. If the vehicle is
automatically shifting into P (Park),
check to see if the P (Park) button
on top of the shifter is stuck. To
operate the vehicle, hold the shift
lever in the desired gear,
R (Reverse) or D (Drive), until
vehicle speed exceeds 15 km/h
(10 mph), then release the shift
lever.
SHIFT DENIED
This message displays when
attempting to shift to a gear not
appropriate for the vehicle speed
and engine revolutions per
minute (rpm).
SHIFT TO PARK
This message displays when the
transmission needs to be shifted to
P (Park). This may appear when
turning the ignition off if the vehicle
is not in P (Park).
TRANSMISSION HOT—IDLE
ENGINE
This message displays and a chime
sounds if the transmission fluid in
the vehicle gets hot. Driving with the
transmission fluid temperature high
can cause damage to the vehicle.
Stop the vehicle and let it idle to
allow the transmission to cool. This
message clears when the fluid
temperature reaches a safe level.
Vehicle Reminder
Messages
REAR SEAT REMINDER LOOK
IN REAR SEAT
This message displays under
certain conditions indicating there
may be an item or passenger in the
rear seat. Check before exiting the
vehicle.
Vehicle Speed Messages
SPEED LIMIT EXCEEDED
This message is displayed when the
vehicle speed is greater than the
speed warning speed. See "Speed
Warning" under Instrument Cluster
0 108.
SPEED LIMIT SET TO XXX
This message is displayed when the
speed warning is set. See "Speed
Warning" under Instrument Cluster
0 108.
Window Messages
OPEN, THEN CLOSE DRIVER/
PASSENGER WINDOW
This message is displayed when the
window needs to be reprogrammed.
If the vehicle's battery has been
discharged or disconnected, you
may need to program each front
window for the express-up feature to
work. See Power Windows 045.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
140 Instruments and Controls
are available. The Alert setting
disables FAB. SeeForward
Automatic Braking (FAB) 0209.
Select Off, Alert, or Alert and Brake.
Front Pedestrian Detection
This feature may help avoid or
reduce the harm caused by
front-end crashes with nearby
pedestrians.
See Front Pedestrian Braking (FPB)
System 0210.
Select Off, Alert, or Alert and Brake.
Rear Cross Traffic Alert
Select Off or On. See Assistance
Systems for Parking or Backing
0 203.
Go Notifier or Adaptive Cruise Go
Notifier
This feature will give a reminder that
Adaptive Cruise Control provides
when it has brought the vehicle to a
complete stop behind another
stopping vehicle, and then that
vehicle drives on.
Select Off or On. See
Adaptive Cruise Control 0194.
Lane Change Alert
This allows the Lane Change Alert
feature to be turned on or off.
Select Off or On. See Lane Change
Alert (LCA) 0213.
Side Blind Zone Alert
Select Off or On. See Side Blind
Zone Alert (SBZA) 0212.
Comfort and Convenience
Select and the following may be
displayed:
. Auto Memory Recall
. Easy Exit Options
. Chime Volume
. Reverse Tilt Mirror
. Automatic Vehicle Hold
Auto Memory Recall
This feature automatically recalls
the current driver ’s previously stored
1 or 2 button positions when the
ignition is turned on. See Memory
Seats 053.
Select Off or On. Easy Exit Options
This feature automatically recalls
the current driver
’s previously stored
Exit button position when exiting the
vehicle.
See Memory Seats 053.
Select Off or On.
Chime Volume
This allows the selection of the
chime volume level.
Touch + or −to adjust the volume.
Reverse Tilt Mirror
When on, both the driver and
passenger outside mirrors will tilt
downward when the vehicle is
shifted to R (Reverse) to improve
visibility of the ground near the rear
wheels. They will return to their
previous driving position when the
vehicle is shifted out of R (Reverse)
or the engine is turned off.
Select Off, On - Driver and
Passenger, On - Driver, or On -
Passenger.

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
Lighting 153
Rear Reading Lamps
Press the lamp lenses to turn the
rear passenger reading lamps on
or off.
Sun Visor Lamps
This lamp turns on when the cover
is opened.
Lighting Features
Entry Lighting
Some exterior lamps and most of
the interior lamps turn on briefly at
night or in areas with limited lighting
when the Remote Keyless Entry
(RKE) transmitter
Kbutton is
pressed. See Remote Keyless Entry
(RKE) System Operation 027. After
about 30 seconds the exterior lamps
turn off, then the dome lamps and
remaining interior lamps dim to off.
Entry lighting can be disabled
manually by changing the ignition
out of the OFF position, or by
pressing the RKE transmitter
Q
button.
This feature can be changed. See
Vehicle Personalization 0138.
Exit Lighting
Some exterior lamps and interior
lights come on at night, or in areas
with limited lighting, when the driver
door is opened after the ignition is
turned off. The dome lamp comes
on after the ignition is changed to the OFF position. The exterior
lamps and dome lamp remain on for
a set amount of time, then
automatically turn off.
The exterior lamps turn off
immediately by turning the exterior
lamp control off.
This feature can be changed. See
Vehicle Personalization
0138.
Battery Load
Management
The vehicle has Electric Power
Management (EPM) that estimates
the battery's temperature and state
of charge. It then adjusts the voltage
for best performance and extended
life of the battery.
When the battery's state of charge
is low, the voltage is raised slightly
to quickly bring the charge back up.
When the state of charge is high,
the voltage is lowered slightly to
prevent overcharging. If the vehicle
has a voltmeter gauge or a voltage
display on the Driver Information
Center (DIC), you may see the

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.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-9803782) -
2017 - crc - 9/7/16
Climate Controls 159
screen. If the fan is turned off, the
air conditioner will not run and the
indicator light will turn off.
Touch AUTO to return to automatic
operation and the air conditioner
runs automatically as needed. The
A/C will return to ECO a/c operation.
For MAX a/c, touch A/C. Auto stops
will occur less frequently, be shorter,
and will not occur in extremely warm
weather.
For ECO a/c, touch A/C again. This
setting balances fuel economy and
air conditioning comfort. In warm
weather conditions, auto stops may
occur more frequently, last longer,
and the vehicle interior may be
warmer during auto stops as
compared to the MAX A/C setting.
This setting allows higher humidity
inside the vehicle and window
fogging may occur before the
engine restarts.
@:Press to turn on recirculation.
An indicator light comes on. Air is
recirculated to quickly cool the
inside of the vehicle or to reduce the
entry of outside air and odors. If selected during cool or cold
weather, the windshield and
windows may fog. Turn off
recirculation to help clear the
windshield and windows.
If equipped, the Air Quality Sensor
may operate the recirculation mode
automatically. See
“Climate and Air
Quality” underVehicle
Personalization 0138.
Auto Defog : If equipped, the
climate control system may have a
sensor to automatically detect high
humidity inside the vehicle. When
high humidity is detected, the
climate control system may adjust to
outside air supply and turn on the
air conditioner. The fan speed may
slightly increase to help prevent
fogging. If the climate control
system does not detect possible
window fogging, it returns to normal
operation.
To turn Auto Defog off or on, see
“Climate and Air Quality” under
Vehicle Personalization 0138.
Rear Window Defogger
K:Press to turn the rear window
defogger on or off. An indicator light
on the button comes on to show that
the rear window defogger is on. The
rear window defogger only works
when the engine is running. It turns
off when the ignition is placed in the
ACC/ACCESSORY or LOCK/OFF
position.
The rear window defogger can be
set to automatic operation. See
“Climate and Air Quality” under
Vehicle Personalization 0138.
When Auto Rear Defog is selected,
the rear window defogger turns on
automatically when the interior
temperature is cold and the outside
temperature is about 4 °C (40 °F)
and below. The auto rear defogger
turns off automatically after about
10 minutes, or after five minutes if
the outside temperature is not
as cold.
The upper gridlines on the rear
window are antenna lines and are
not intended to heat when the
defogger is activated.