2010 BUICK LACROSSE service

Instruments and Controls 4-21
released, or while driving, there is a
problem with the Electric Parking
Brake system. A Service Parking
Brake message may also display in
the Driver Information Center (DIC).
SeeBrake System Messages
on
page 4‑33for more information.
If the light does not come on,
or remains flashing, see you dealer/
retailer.
For vehicles with the Electric Park
Brake (EPB), the park brake
warning light should come on briefly
when ignition is placed in ON/RUN.
If it does not come on, then have it
fixed so it will be ready to warn if
there is a problem.
If this light comes on, there is a
problem with a system on the
vehicle that is causing the park
brake system to work at a reduced level. The vehicle can still be driven,
but should be taken to a dealer/
retailer as soon as possible. See
Parking Brake
on page 8‑32for
more information.
For vehicles with the uplevel cluster,
this telltale displays in the Driver
Information Center (DIC) screen.
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 ABS light stays on, turn the
ignition off. 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 lights are on, the vehicle's
antilock brakes are not functioning
and there is a problem with the
regular brakes. See your dealer/
retailer for service.
See
Brake System Warning Light
on page 4‑20.
See Brake System Messages
on
page 4‑33for all brake related
DIC messages.

4-22 Instruments and Controls
Traction Off Light
This light comes on when the
Traction Control System (TCS) has
been turned off by pressing and
releasing the traction control button.
This light also comes on and the
system turns off if there is a problem
with the traction control system.
If the light comes on and stays on
for an extended period of time while
the system is turned on, the vehicle
needs service.
SeeTraction Control System (TCS)
on page 8‑34andElectronic
Stability Control (ESC)on
page 8‑35for more information.
Electronic Stability
Control (ESC) Indicator
Light
This light comes on briefly while
starting the engine.
If it does not, have the vehicle
serviced by your dealer/retailer.
If the system is working normally the
indicator light then goes off.
If the light comes on and stays on
while driving, there could be a
problem with the ESC and the
vehicle might need service. When
this warning light is on, the ESC is
off and does not limit wheel spin.
The light flashes if the system is
active and is working to assist the
driver with directional control of the
vehicle in difficult driving conditions. For vehicles with the uplevel cluster,
this telltale is shown in the Driver
Information Center (DIC) screen.
See
Electronic Stability Control
(ESC)
on page 8‑35for more
information.
Electronic Stability
Control (ESC)/Traction
Control System (TCS)
Indicator/Warning Light
This light comes on when the
Electronic Stability Control (ESC)
system is turned off. If the Traction
Control System (TCS) is off, wheel
spin is not limited. If the ESC is off,
the system does not assist in
controlling the vehicle. Turn on the
TCS and the ESC and the warning
light turns off.

Instruments and Controls 4-23
SeeTraction Control System (TCS)on page 8‑34andElectronic
Stability Control (ESC)on
page 8‑35for more information
Tire Pressure Light
For vehicles with a tire pressure
monitoring system, this light comes
on briefly when the engine is
started. It provides information
about tire pressures and the Tire
Pressure Monitoring System.
When the Light is On Steady
This indicates that one or more of
the tires are significantly
underinflated.
A tire pressure message in the
Driver Information Center (DIC), can
accompany the light. See Tire
Messages
on page 4‑37for more information. Stop and check the
tires as soon as it is safe to do so.
If underinflated, inflate to the proper
pressure. See
Tire Pressure
on
page 9‑53for more information.
When the Light Flashes First and
Then is On Steady
This indicates that there may be a
problem with the Tire Pressure
Monitor System. The light flashes
for about a minute and stays on
steady for the remainder of the
ignition cycle. This sequence
repeats with every ignition cycle.
See Tire Pressure Monitor
Operation
on page 9‑55for more
information.
Engine Oil Pressure Light
{WARNING
Do not keep driving if the oil
pressure is low. The engine can
become so hot that it catches fire.
(Continued)
WARNING (Continued)
Someone could be burned. Check
the oil as soon as possible and
have the vehicle serviced.
Notice: Lack of proper engine oil
maintenance can damage the
engine. The repairs would not be
covered by the vehicle warranty.
Always follow the maintenance
schedule in this manual for
changing engine oil.
The oil pressure light should come
on briefly as the engine is started.
If it does not come on have the
vehicle serviced by your dealer/
retailer.

4-24 Instruments and Controls
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/retailer.
For vehicles with the uplevel cluster
this telltale displays in the Driver
Information Center (DIC) screen.
Low Fuel Warning Light
This light, below the fuel gage,
comes on briefly when the engine is
started.
If it does not come on have the
vehicle serviced by your dealer/
retailer. If the system is working
normally the indicator light then
goes off.This light also comes on when the
fuel tank is low on fuel. When fuel is
added the light should go off. If it
does not, have your vehicle
serviced.
For vehicles with the uplevel cluster,
this telltale displays in the Driver
Information Center (DIC) screen.
Security Light
This light flashes when the security
system is activated.
For more information, see
Vehicle
Security on page 1‑13.
For vehicles with the uplevel cluster
this telltale displays in the Driver
Information Center (DIC) screen.
High-Beam on Light
This light comes on when the
high-beam headlamps are on.
See Headlamp High/Low-Beam
Changer
on page 5‑2for more
information.
Fog Lamp Light
For vehicles with fog lamps, this
light comes on when the fog lamps
are on.

Instruments and Controls 4-31
Format Two:This display includes
the information in Format One
without the transmission
information, the outside air
temperature, and compass heading.Format Three: This display
includes all the information in
Format One along with a circular
tachometer, but without outside air
temperature and compass heading.
All formats will show the turn-by-turn
navigation information and provide
details about the next driving
maneuver to be made. When you
near your destination, the HUD will
display a distance bar that will
empty the closer you get to your
destination. All navigation information is provided to the HUD
by the navigation radio or OnStar
®
service, for vehicles that have these
features.
The HUD image displayed on the
windshield will automatically dim
and brighten to compensate for
outside lighting. However, the
HUD brightness control can still be
adjusted as needed.

Instruments and Controls 4-33
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 certain
features of the vehicle that you may
be able to notice. At the point that
features are disabled, this message
is displayed. It means that the
vehicle is trying to save the charge
in the battery. Turn off unnecessary
accessories to allow the battery to
recharge.
Low Battery
This message is displayed when the
battery voltage is low. SeeBattery
on page 9‑26for more information.
Service Battery Charging
System
This message is displayed when
there is a fault in the battery
charging system. Take the vehicle to
your dealer/retailer for service.
Brake System Messages
Brake Fluid Low
This message is displayed when the
brake fluid level is low. See Brake
Fluid on page 9‑25.
Press Brake Pedal To Release
Park Brake
This message is displayed if you
attempt to release the electric
parking brake without the brake
pedal applied. See Parking Brake
on page 8‑32for more information.
Release Park Brake Switch
This message is displayed if the
electric parking brake is on while the
vehicle is in motion. Release it before you attempt to
drive. See
Parking Brake
on
page 8‑32for more information.
Service Parking Brake
This message is displayed when
there is a problem with the electric
parking brake. See Parking Brake
on page 8‑32for more information.
Take the vehicle to your dealer/
retailer.
Compass Messages
CAL
This message is displayed when the
compass needs to be calibrated.
See Compass on page 4‑8.
– – –
Three dashes will be displayed if the
compass needs service. See your
dealer/retailer for service.

Instruments and Controls 4-35
Engine Overheated—Idle
Engine
This message displays when the
engine coolant temperature is too
hot. Stop and allow the vehicle to
idle until it cools down.
Engine Overheated —Stop
Engine
This message displays and a
continuous chime sounds if the
engine cooling system reaches
unsafe temperatures for operation.
Stop and turn off the vehicle as
soon as it is safe to do so to avoid
severe damage. This message
clears when the engine has cooled
to a safe operating temperature.
High Coolant Temperature
This message displays if the coolant
temperature is hot, see Engine
Overheating on page 9‑20.
Engine Oil Messages
Change Engine Oil Soon
This message displays when the
engine oil needs to be changed.
When you change the engine oil, be
sure to reset the CHANGE ENGINE
OIL SOON message. See Engine
Oil Life System
on page 9‑13and
Driver Information Center (DIC)on
page 4‑25for information on how to
reset the message. See Engine Oil
on page 9‑11andScheduled
Maintenanceon page 10‑2for
more information.
Engine Oil Hot, Idle Engine
This message displays when the
engine oil temperature is too hot.
Stop and allow the vehicle to idle
until it cools down.
Engine Oil Low –Add Oil
This message displays when the
engine oil level is too low. Check the
oil level. See Engine Oil
on
page 9‑11.
Oil Pressure Low –Stop
Engine
This message displays if low oil
pressure levels occur. Stop the
vehicle as soon as safely possible
and do not operate it until the cause
of the low oil pressure has been
corrected. Check the oil as soon as
possible and have your vehicle
serviced by your dealer/retailer.
Engine Power Messages
Engine Power Is Reduced
This message displays when the
vehicle's engine power is reduced.
Reduced engine power can affect
the vehicle's ability to accelerate.
If this message is on, but there is no
reduction in performance, proceed
to your destination. The
performance may be reduced the
next time the vehicle is driven. The
vehicle may be driven at a reduced
speed while this message is on, but
maximum acceleration and speed
may be reduced. Anytime this

4-36 Instruments and Controls
message stays on, the vehicle
should be taken to your dealer/
retailer for service as soon as
possible.
Fuel System Messages
Fuel Level Low
This message displays when the
vehicle is low on fuel. Refuel as
soon as possible.
Tighten Gas Cap
This message displays when the
fuel cap is not on tight. Tighten the
fuel cap.
Key and Lock Messages
No Remote Detected
This message displays when the
transmitter battery is weak on
vehicles with Keyless Access. See
“Starting the Vehicle with a Low
Battery”under“Remote Keyless
Transmitter Operation (Keyless
Access)” for more information.
Replace Battery In Remote Key
This message displays when the
battery in the Remote Keyless Entry
(RKE) transmitter needs to be
replaced.
Lamp Messages
AFL (Adaptive Forward
Lighting) Lamps Need Service
This message displays when the
Adaptive Forward Lighting (AFL)
system is disabled and needs
service. See your dealer/retailer.
SeeAdaptive Forward Lighting
(AFL)
on page 5‑3for more
information.
Ride Control System
Messages
Service Rear Axle
This message displays when there
is a problem with the All-Wheel
Drive (AWD) System. See your
dealer/retailer for service.
Service Traction Control
This message displays when there
is a problem with the Traction
Control System (TCS). When this
message is displayed, the system
will not limit wheel spin. Adjust your
driving accordingly. See your dealer/
retailer for service.
Service Stabilitrak
This message displays if there is a
problem with the StabiliTrak®
system. If this message appears, try
to reset the system. Stop; turn off
the engine for at least 15 seconds;
then start the engine again. If this
message still comes on, it means
there is a problem. See your dealer/
retailer for service. The vehicle is
safe to drive, however, you do not
have the benefit of StabiliTrak, so
reduce your speed and drive
accordingly.