2015 BUICK LACROSSE ignition

Black plate (24,1)Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707475) - 2015 - CRC - 10/9/14
5-24 Instruments and Controls
This 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 light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle
could be low on oil and might have
some other system problem. See
your dealer.
Low Fuel Warning Light
This light is near the fuel gauge and
comes on briefly when the ignition is
turned on as a check to show it is
working.
It also comes on when the fuel tank
is low on fuel. The light turns off
when fuel is added. If it does not,
have the vehicle serviced.
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
(Key Access) on page 2-16 or
Immobilizer Operation (Keyless
Access) on page 2-17.

Black plate (26,1)Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707475) - 2015 - CRC - 10/9/14
5-26 Instruments and Controls
Adaptive Cruise Control Light
This light is white when the Adaptive
Cruise Control (ACC, if equipped) is
on and ready, and turns green when
the ACC is set and active. See
Adaptive Cruise Control on
page 9-39.
Door Ajar Light
When the ignition is on, this light
stays on until all doors are closed
and completely latched.
If a door is not closed properly, a
chime sounds after the engine is
started and the vehicle is not in
P (Park).
Information Displays
Power Flows
(eAssist Only)
To view the Power Flow screens in
the center stack display, press the
[button on the Home screen or
on the Application Tray on the top of
the infotainment system touch
screen. Then press the Flow button
at the bottom of the touch screen.
These screens indicate the current
operating condition and the energy
flow between the engine, generator,
and high voltage battery.

Black plate (35,1)Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-35
Clean the HUD lens with a soft cloth
sprayed with glass cleaner. Wipe
the lens gently, then dry it.
If You Cannot See the HUD
Image When the Ignition Is On
Check that:
.Nothing is covering the
HUD lens.
.HUD brightness setting is not
too dim or too bright.
.HUD is adjusted to the proper
height.
.Polarized sunglasses are
not worn.
.Windshield and HUD lens are
clean.
If the HUD image is not correct,
contact your dealer.
The windshield is part of the HUD
system. See Windshield
Replacement on page 10-30.
Vehicle Messages
Messages displayed on the DIC
indicate the status of the vehicle or
some action that may be needed to
correct a condition. Multiple
messages may appear one after
another.
The messages that do not require
immediate action can be
acknowledged and cleared by
pressing
V(Set/Reset).
The messages that require
immediate action cannot be cleared
until that action is performed.
All messages should be taken
seriously; clearing the message
does not correct the problem.
The following are the possible
messages and some information
about them.
Battery Voltage and
Charging Messages
BATTERY SAVER ACTIVE
This message displays when the
vehicle has detected that the battery
voltage is dropping beyond a
reasonable point. The battery saver
system starts reducing features of
the vehicle that may be noticed. At
the point that features are disabled,
this message displays. Turn off
unnecessary accessories to allow
the battery to recharge.
LOW BATTERY
This message is displayed when the
battery voltage is low. See Battery
on page 10-27.
SERVICE BATTERY
CHARGING SYSTEM
This message is displayed when
there is a fault in the battery
charging system. Take the vehicle to
your dealer for service.

Black plate (44,1)Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707475) - 2015 - CRC - 10/9/14
5-44 Instruments and Controls
The low tire pressure warning light
will also come on. SeeTire
Pressure Light on page 5-23.
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 on page 10-42, Vehicle
Load Limits on page 9-10, and Tire
Pressure on page 10-50.
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) on
page 5-28.
Transmission Messages
SERVICE TRANSMISSION
This message displays if there is a
problem with the transmission. See
your dealer.
SHIFT TO PARK
This message displays when the
transmission needs to be shifted to
P (Park). This may appear when
attempting to remove the key from
the ignition or from the vehicle 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 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
on page 5-8.
SPEED LIMIT SET TO XXX
This message is displayed when the
speed warning is set. See "Speed
Warning" under Instrument Cluster
on page 5-8.
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
recharged or disconnected, you will
need to program each front window
for the express-up feature to work.
See Power Windows on page 2-20.

Black plate (47,1)Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-47
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.
SeeAdaptive Cruise Control on
page 9-39.
Side Blind Zone Alert
Select Off or On. See Side Blind
Zone Alert (SBZA) on page 9-54.
Rear Cross Traffic Alert
Select Off or On. See Assistance
Systems for Parking or Backing on
page 9-48.
Comfort and Convenience
Select and the following may be
displayed:
.Auto Memory Recall
.Easy Exit Options
.Chime Volume Auto Memory Recall
This feature automatically recalls
the current driver
’s previously stored
1 or 2 button positions when
entering the vehicle. See Memory
Seats on page 3-7.
Select Off, On - Driver Door Open,
or On - At ignition On.
Easy Exit Options
This feature moves the seat
rearward allowing the driver more
room to exit the vehicle. See
Memory Seats on page 3-7.
Select Off or On.
Chime Volume
This allows the selection of the
chime volume level.
Press + or −to adjust the volume. Lighting
Select and the following may be
displayed:
.Vehicle Locator Lights
.Exit Lighting
.Daytime Tail Lights
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.

Black plate (2,1)Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707475) - 2015 - CRC - 10/9/14
6-2 Lighting
;(Parking Lamps):Turns on the
parking lamps, together with the
sidemarker lamps, taillamps, license
plate lamps, and instrument panel
lights.
5(Headlamps): Turns on the
headlamps, together with the
parking lamps, sidemarker lamps,
taillamps, license plate 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
2 3
(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.
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.

Black plate (3,1)Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707475) - 2015 - CRC - 10/9/14
Lighting 6-3
Automatic Headlamp
System
When the exterior lamp control is
set to AUTO and it is dark enough
outside, the headlamps come on
automatically.
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.If the vehicle is started in a dark
garage, the automatic headlamp
system comes on immediately. If it
is light outside when the vehicle
leaves the garage, there is a slight
delay before the automatic
headlamp system changes to the
DRL. During that delay, the
instrument cluster may not be as
bright as usual. Make sure the
instrument panel brightness control
is in the full bright position. See
Instrument Panel Illumination
Control on page 6-5.
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.
Lights On with Wipers
If the windshield wipers are
activated in daylight with the engine
on, and the exterior lamp control is in AUTO, the headlamps, parking
lamps, and other exterior lamps
come on. The transition time for the
lamps coming on varies based on
wiper speed. When the wipers are
not operating, these lamps turn off.
Move the exterior lamp control to
P
or;to disable this feature.
Adaptive Forward
Lighting (AFL)
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 on
page 6-1.

Black plate (5,1)Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707475) - 2015 - CRC - 10/9/14
Lighting 6-5
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.
#(Fog Lamps):Press to turn on
or off. An indicator light on the
instrument cluster comes on when
the fog lamps are on.
Some localities have laws that
require the headlamps to be on
along with the fog lamps.
Interior Lighting
Instrument Panel
Illumination Control
The brightness of the instrument
panel lighting and steering wheel
controls can be adjusted.
D(Instrument Panel
Illumination): Move and hold the
thumbwheel up or down to brighten
or dim the lights.
Dome Lamps
The interior lamps control in the
overhead console controls both the
front and rear interior lamps.
To operate:
((Off): Turns the lamps off.
H(Door): Turns the lamps on
when any door is opened.
'(On): Keeps the lamps on all
the time.
The interior lamps turn on
automatically if the airbags are
deployed.