2016 BUICK LACROSSE warning light

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Instruments and Controls 115
driving trips with the cap
properly installed may turn the
light off.
. Poor fuel quality can cause
inefficient engine operation and
poor driveability, which may go
away once the engine is warmed
up. If this occurs, change the
fuel brand. It may require at
least one full tank of the proper
fuel to turn the light off. See
Fuel 0215.
If the light remains on, see your
dealer.
Emissions Inspection and
Maintenance Programs
If the vehicle requires an Emissions
Inspection/Maintenance test, the
test equipment will likely connect to
the vehicle's Data Link
Connector (DLC).
The DLC is under the instrument
panel to the left of the steering
wheel. Connecting devices that are
not used to perform an Emissions
Inspection/Maintenance test or to
service the vehicle may affect
vehicle operation See Add-On
Electrical Equipment 0225. See
your dealer if assistance is needed.
The vehicle may not pass
inspection if:
. The light is on when the engine
is running.
. The light does not come on
when the ignition is in ON/RUN
with the engine not running for
Key Access or in Service Only
Mode for Keyless Access.
. Critical emission control systems
have not been completely
diagnosed. If this happens, the
vehicle would not be ready for
inspection and might require
several days of routine driving
before the system is ready for
inspection. This can happen if
the 12-volt battery has recently been replaced or run down, or if
the vehicle has been recently
serviced.
See your dealer if the vehicle will
not pass or cannot be made ready
for the test.
Brake System Warning
Light
The vehicle brake system consists
of two hydraulic circuits. If one
circuit is not working, the remaining
circuit can still work to stop the
vehicle. For normal braking
performance, both circuits need to
be working.
If the warning light comes on, there
is a brake problem. Have the brake
system inspected right away.
MetricEnglish

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
116 Instruments and Controls
This light should come on briefly
when the engine is started. If it does
not come on then, have it fixed so it
will be ready to warn you if there is
a problem.
If the light comes on and stays on,
there is a brake problem.
{Warning
The brake system might not be
working properly if the brake
system warning light is on.
Driving with the brake system
warning light on can lead to a
crash. If the light is still on after
the vehicle has been pulled off
the road and carefully stopped,
have the vehicle towed for
service.
Electric Parking Brake
Light
MetricEnglish
The parking brake status light
comes on when the brake is
applied. If the light continues
flashing after the parking brake is
released, or while driving, there is a
problem with the electric parking
brake system. A message may also
display on the Driver Information
Center (DIC). See Brake System
Messages 0130.
If the light does not come on,
or remains flashing, see your dealer.
Service Electric Parking
Brake Light
This light should come on briefly
when starting the vehicle. If it does
not come on, have it fixed so it will
be ready to warn if there is a
problem.
If this light stays on, there is a
problem with the Electric Parking
Brake system or another system on
the vehicle that is causing the
parking brake system to work at a
reduced level. The vehicle can still
be driven, but should be taken to a
dealer as soon as possible. See the
information for the Electric Parking
Brake under Parking Brake 0190.
If a message displays in the Driver
Information Center (DIC), see Brake
System Messages 0130.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Instruments and Controls 117
Antilock Brake System
(ABS) Warning Light
This light comes on briefly when the
engine is started.
If the light does not come on, have it
fixed so it will be ready to warn if
there is a problem.
If the light comes on while driving,
stop as soon as it is safely possible
and turn off the vehicle. Then start
the engine again to reset the
system. If the ABS light stays on,
or comes on again while driving, the
vehicle needs service. A chime may
also sound when the light comes on
steady.
If the ABS light is the only light on,
the vehicle has regular brakes, but
the antilock brakes are not
functioning.If both the ABS and the brake
system warning light are on, the
vehicle's antilock brakes are not
functioning and there is a problem
with the regular brakes. See your
dealer for service.
See
Brake System Warning Light
0 115 and Brake System
Messages 0130.Lane Departure Warning
(LDW) Light
This light is green if LDW is on and
ready to operate.
This light changes to amber and
flashes to indicate that the lane
marking has been crossed without
using a turn signal in that direction.
See Lane Departure Warning
(LDW) 0213.
Vehicle Ahead Indicator
If equipped, this indicator will
display green when a vehicle is
detected ahead and amber when
you are following a vehicle ahead
much too closely.
See Forward Collision Alert (FCA)
System 0208.
Traction Off Light
This light comes on briefly while
starting the engine. If it does not,
have the vehicle serviced by your

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
118 Instruments and Controls
dealer. If the system is working
normally, the indicator light then
turns off.
The traction off light comes on when
the Traction Control System (TCS)
has been turned off by pressing and
releasing the TCS/StabiliTrak
button.
This light and the StabiliTrak OFF
light come on when StabiliTrak is
turned off.
If the TCS is off, wheel spin is not
limited. Adjust driving accordingly.
SeeTraction Control/Electronic
Stability Control 0192.
StabiliTrak®OFF Light
This light comes on briefly while
starting the engine. If it does not,
have the vehicle serviced by your
dealer. This light comes on when the
StabiliTrak system is turned off.
If StabiliTrak is off, the Traction
Control System (TCS) is also off.
If StabiliTrak and TCS are off, the
system does not assist in controlling
the vehicle. Turn on the TCS and
the StabiliTrak systems, and the
warning light turns off.
See
Traction Control/Electronic
Stability Control 0192.
Traction Control System
(TCS)/StabiliTrak®Light
This light comes on briefly when the
engine is started.
If the light 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 is on and not flashing, the
TCS and potentially the StabiliTrak
system have been disabled. A DIC
message may display. Check the
DIC messages to determine which
feature(s) is no longer functioning
and whether the vehicle requires
service.
If the light is on and flashing, the
TCS and/or the StabiliTrak system
is actively working.
See
Traction Control/Electronic
Stability Control 0192.
Engine Coolant
Temperature Warning
Light
This light comes on briefly while
starting the vehicle.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
Instruments and Controls 119
If it does not, have the vehicle
serviced by your dealer. If the
system is working normally the
indicator light goes off.
Caution
The engine coolant temperature
warning light indicates that the
vehicle has overheated. Driving
with this light on can damage the
engine and it may not be covered
by the vehicle warranty. See
Engine Overheating0245.
The engine coolant temperature
warning light comes on when the
engine has overheated.
If this happens, pull over and turn
off the engine as soon as possible.
See Engine Overheating 0245.
Tire Pressure Light
For vehicles with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the engine is
started. It provides information
about tire pressures and the TPMS.
When the Light Is On Steady
This indicates that one or more of
the tires are significantly
underinflated.
A Driver Information Center (DIC)
tire pressure message may also
display. See Tire Messages 0137.
Stop as soon as possible, and
inflate the tires to the pressure value
shown on the Tire and Loading
Information label. See Tire
Pressure 0271. When the Light Flashes First and
Then Is On Steady
If the light flashes for about a minute
and then stays on, there may be a
problem with the TPMS. If the
problem is not corrected, the light
will come on at every ignition cycle.
See
Tire Pressure Monitor
Operation 0274.
Engine Oil Pressure Light
Caution
Lack of proper engine oil
maintenance can damage the
engine. Driving with the engine oil
low can also damage the engine.
The repairs would not be covered
by the vehicle warranty. Check
the oil level as soon as possible.
Add oil if required, but if the oil
level is within the operating range
and the oil pressure is still low,
have the vehicle serviced. Always
follow the maintenance schedule
for changing engine oil.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
120 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. See
Immobilizer Operation
(Key Access) 041 orImmobilizer
Operation (Keyless Access) 042.
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.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
128 Instruments and Controls
Image Brightness :Turn the
dimming knob clockwise or
counterclockwise to brighten or dim
the display.
The HUD image will automatically
dim and brighten to compensate for
outside lighting. The HUD
brightness control can also be
adjusted as needed.
The HUD image can temporarily
light up depending on the angle and
position of the sunlight on the HUD
display. This is normal.
Polarized sunglasses could make
the HUD image harder to see.
PAGE : Press to select the display
view. Release the PAGE button
when the desired display is shown
on the HUD. If vehicle messages
are displayed, pressing PAGE may
clear the message.
OFF : To turn HUD off, turn the
HUD dimming knob fully
counterclockwise until the HUD
display turns off. HUD Views
There are four views in the HUD.
Some vehicle information and
vehicle messages or alerts may be
displayed in any view.
Metric
English
Speed View : This display gives the
speedometer reading (in English or
metric units), Adaptive Cruise
Control speed, Lane Departure
Warning, and Vehicle Ahead
indicator. Some information only
appears on vehicles that have these
features, and when they are active.
Metric
English
Audio/Phone View : This display
includes the information in speed
view along with audio/phone
information. The current radio
station, media type, and incoming
calls will be displayed.
All HUD views may briefly display
audio information when the driver
uses the steering wheel controls to
adjust the audio settings appearing
in the instrument cluster.
Incoming phone calls appearing in
the instrument cluster, may also
display in any HUD view.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9159288) - 2016 - CRC - 10/5/15
138 Instruments and Controls
TIRE LEARNING ACTIVE
This message displays when the
system is learning new tires. See
Tire Pressure Monitor
Operation0274.
TIRE PRESSURE LOW ADD
AIR TO TIRE
On vehicles with the Tire Pressure
Monitor System (TPMS), this
message displays when the
pressure in one or more of the
vehicle's tires is low.
The low tire pressure warning light
will also come on. See Tire
Pressure Light 0119.
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 Tires0264,
Vehicle Load Limits 0171, and Tire
Pressure 0271.
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) 0123.
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 0106.
SPEED LIMIT SET TO XXX
This message is displayed when the
speed warning is set. See "Speed
Warning" under Instrument
Cluster 0106.
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 045.