2011 BUICK REGAL Owner's Manual

Black plate (13,1)Buick Regal Owner Manual - 2011
Instruments and Controls 5-13
If, after several seconds, both
status indicator lights remain on,
or if there are no lights at all, there
may be a problem with the lights
or the passenger sensing system.
See your dealer for service.
{WARNING
If the airbag readiness light ever
comes on and stays on, it means
that something may be wrong
with the airbag system. To help
avoid injury to yourself or others,
have the vehicle serviced right
away. SeeAirbag Readiness
Light on page 5‑11 for more
information, including important
safety information.
Charging System Light
The charging system light comes on
briefly when the ignition is turned
on, but the engine is not running, as
a check to show the light is working.
The light turns off when the engine
is started. If it does not, have the
vehicle serviced by your dealer.
If the light stays on, or comes on
while driving, there could be a
problem with the electrical charging
system. Have it checked by your
dealer. Driving while this light is on
could drain the battery.
If a short distance must be driven
with the light on, be sure to turn off
all accessories, such as the radio
and air conditioner.
Malfunction
Indicator Lamp
A computer system called OBD II
(On-Board Diagnostics-Second
Generation) monitors operation
of the fuel, ignition, and emission
control systems. It makes sure that
emissions are at acceptable levels
for the life of the vehicle, helping to
produce a cleaner environment.
This light comes on when the
ignition is on, but the engine is not
running, as a check to show it is
working. If it does not, have the
vehicle serviced by your dealer.
If the malfunction indicator lamp
comes on and stays on, while the
engine is running, this indicates that
there is an OBD II problem and
service is required.

Black plate (14,1)Buick Regal Owner Manual - 2011
5-14 Instruments and Controls
Malfunctions often are indicated by
the system before any problem is
apparent. Heeding the light can
prevent more serious damage to the
vehicle. This system assists the
service technician in correctly
diagnosing any malfunction.
Notice:If the vehicle is
continually driven with this light
on, the emission controls might
not work as well, the vehicle fuel
economy might not be as good,
and the engine might not run as
smoothly. This could lead to
costly repairs that might not be
covered by the vehicle warranty.
Notice: Modifications made to the
engine, transmission, exhaust,
intake, or fuel system of the
vehicle or the replacement
of the original tires with other
than those of the same Tire
Performance Criteria (TPC)
can affect the vehicle's emission
controls and can cause
this light to come on. Modifications to these systems
could lead to costly repairs not
covered by the vehicle warranty.
This could also result in a failure
to pass a required Emission
Inspection/Maintenance test.
See
Accessories and
Modifications on page 10‑3.
This light comes on during a
malfunction in one of two ways:
Light Flashing: A misfire condition
has been detected. A misfire
increases vehicle emissions and
could damage the emission control
system on the vehicle. Diagnosis
and service might be required.
The following can prevent more
serious damage to the vehicle:
.Reduce vehicle speed.
.Avoid hard accelerations.
.Avoid steep uphill grades. If the light continues to flash, when
it is safe to do so, stop the vehicle.
Find a safe place to park. Turn the
vehicle off, wait at least 10 seconds,
and restart the engine. If the light is
still flashing, follow the previous
steps and see your dealer for
service as soon as possible.
Light On Steady:
An emission
control system malfunction has
been detected on the vehicle.
Diagnosis and service might be
required.
The following may correct an
emission system malfunction:
.Check that the fuel cap is fully
installed. See Filling the Tank on
page 9‑48. The diagnostic
system can determine if the
fuel cap has been left off or
improperly installed. A loose or
missing fuel cap allows fuel to
evaporate into the atmosphere.
A few driving trips with the cap
properly installed should turn the
light off.

Black plate (15,1)Buick Regal Owner Manual - 2011
Instruments and Controls 5-15
.Check that the electrical system
is not wet. The system could be
wet if the vehicle was driven
through a deep puddle of water.
The condition is usually
corrected when the electrical
system dries out. A few driving
trips should turn the light off.
.Check that good quality fuel is
used. Poor fuel quality causes
the engine not to run as
efficiently as designed and may
cause: stalling after start-up,
stalling when the vehicle is
changed into gear, misfiring,
hesitation on acceleration,
or stumbling on acceleration.
These conditions might go away
once the engine is warmed up.
If one or more of these
conditions occurs, change the
fuel brand used. It will require at
least one full tank of the proper
fuel to turn the light off.
SeeRecommended Fuel on
page 9‑44. If none of the above have made
the light turn off, have your dealer
check the vehicle. The dealer
has the proper test equipment
and diagnostic tools to fix any
mechanical or electrical problems
that might have developed.Emissions Inspection and
Maintenance Programs
Some state/provincial and local
governments may have programs
to inspect the on-vehicle emission
control equipment. For the
inspection, the emission system
test equipment is connected
to the vehicle’s Data Link
Connector (DLC).
The DLC is under the instrument
panel near the steering wheel. See
your dealer if assistance is needed. The vehicle may not pass
inspection if:
.The malfunction indicator lamp is
on with the engine running, or if
the light does not come on when
the ignition is turned to ON/RUN
while the engine is off.
.The critical emission control
systems have not been
completely diagnosed by the
system. This can happen if
the battery has recently been
replaced or if the battery has run
down. The diagnostic system
evaluates critical emission
control systems during
normal driving. This can take
several days of routine driving.
If this has been done and the
vehicle still does not pass the
inspection, your dealer can
prepare the vehicle for
inspection.

Black plate (16,1)Buick Regal Owner Manual - 2011
5-16 Instruments and Controls
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.
EnglishMetric
The Brake System Warning Light
should come on briefly as the
engine is started. If it does not come
on, have the vehicle serviced by
your dealer.
{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.
If the light comes on while driving,
a chime sounds. Pull off the road
and stop. The pedal might be harder
to push or go closer to the floor.
It might also take longer to stop.
If the light is still on, have the
vehicle towed for service. See
Towing the Vehicle on page 10‑74.
Electric Parking Brake
Light
EnglishMetric
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 SERVICE
PARKING BRAKE message
may also display on the Driver
Information Center (DIC). See Brake
System Messages on page 5‑26 for
more information.
If the light does not come on,
or remains flashing, see your dealer.

Black plate (17,1)Buick Regal Owner Manual - 2011
Instruments and Controls 5-17
The brake warning light should
come on briefly when the ignition is
placed in ON/RUN. If it does not
come on, have the vehicle serviced
by your dealer.
If this light comes on, there is a
problem with a 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. SeeParking
Brake on page 9‑31 for more
information.
Antilock Brake System
(ABS) Warning Light
The Antilock Brake System (ABS)
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 the ignition
off. A chime may also sound when
the light comes on steady. 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. If the regular
brake system warning light is not
on, the vehicle still has brakes, but not antilock brakes. If the regular
brake system warning light is also
on, the vehicle does not have
antilock brakes and there is a
problem with the regular brakes.
See
Brake System Warning Light on
page 5‑16.
See Driver Information Center (DIC)
on page 5‑22 for all brake related
DIC messages.
Ultrasonic Parking
Sensor Light
This light comes on to indicate that
there is a malfunction in the system.
See your dealer for service.
See Ultrasonic Parking Assist on
page 9‑42 andDriver Information
Center (DIC) on page 5‑22 for more
information.

Black plate (18,1)Buick Regal Owner Manual - 2011
5-18 Instruments and Controls
Traction Off Light
This light comes on briefly while
starting the engine.
If it does not, have the vehicle
serviced by your dealer. If the
system is working normally, the
indicator light then goes off.
The traction off light comes on when
the Traction Control System (TCS)
has been turned off or if there is a
problem with the TCS.
If the light comes on and stays on
while the system is turned on, the
vehicle needs service.
A message also appears in the
Driver Information Center (DIC).
SeeRide Control System Messages
on page 5‑29 for more information. See
Traction Control System (TCS)
on page 9‑34 andStabiliTrak
®
System on page 9‑36 for more
information.
StabiliTrak®OFF Light
This light comes on when the
StabiliTraK system is turned off.
If the Traction Control System (TCS)
is off, wheel spin is not limited.
If StabiliTrak is off, the system does
not assist in controlling the vehicle.
Turn on the TCS and the StabiliTrak
system and the warning light
turns off.
See Traction Control System (TCS)
on page 9‑34 andStabiliTrak
®
System on page 9‑36 for more
information.
Traction Control System
(TCS)/StabiliTrak®Light
The Traction Control System (TCS)/
StabiliTrak Light comes on briefly
when the engine is started.
If the light does not come on, have
the vehicle serviced by the dealer.
If the system is working normally,
the indicator light turns off.
If the light is on while certain DIC
messages display, this indicates
that the TCS and StabiliTrak
systems are not working or are
disabled.

Black plate (19,1)Buick Regal Owner Manual - 2011
Instruments and Controls 5-19
If the light is on and not flashing, the
TCS and potentially the StabiliTrak
system have been disabled. Check
the DIC messages to determine
which feature(s) is no longer
functioning and whether it is
because of the driver turning off the
feature(s), or because the system is
not working properly and the vehicle
requires service.
If the TCS is disabled, wheel spin is
not limited. If the StabiliTrak system
is disabled, the system does not aid
in maintaining directional control of
the vehicle.
If the indicator/warning light is on
and flashing, the TCS or the
StabiliTrak system is actively
working. Check the DIC messages
for details to determine which
system is working. If the LOW
TRACTION message appears, the
system is limiting wheel spin. If a
message appears in the DIC, the
system is aiding in maintaining
directional control of the vehicle.See
StabiliTrak®System on
page 9‑36 andTraction Control
System (TCS) on page 9‑34 for
more information.
See Ride Control System Messages
on page 5‑29 for more information
on the messages associated with
this light.
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 tire pressure message can
accompany the light. See
Tire
Messages on page 5‑30 for more
information. Stop as soon as
possible, and inflate the tires to the
pressure value shown on the Tire
and Loading Information label.
See Tire Pressure on page 10‑49
for more information.
When the Light Flashes First and
Then Is On Steady
This indicates that there may be a
problem with the TPMS. 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 10‑52 for
more information.

Black plate (20,1)Buick Regal Owner Manual - 2011
5-20 Instruments and Controls
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.
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 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.
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 comes on for a
few seconds when the ignition is
turned on as a check to indicate
it is working. If it does not come on,
have it fixed.
The low fuel warning light (A) comes
on and a chime sounds periodically
when the vehicle is low on fuel. The
light turns off when fuel is added to
the fuel tank.
See Driver Information Center (DIC)
on page 5‑22 for more information.