warning lights BUICK REGAL 2015 Owner's Manual

Black plate (1,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
2015 Buick Regal Owner ManualM
In Brief. . . . . . . . . . . . . . . . . . . . . . . . 1-1
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information . . . . . . . . 1-4
Vehicle Features . . . . . . . . . . . . . 1-14
eAssist Features . . . . . . . . . . . . . 1-19
Performance and
Maintenance . . . . . . . . . . . . . . . . 1-21
Keys, Doors, and Windows . . . . . . . . . . . . . . . . . . . . 2-1
Keys and Locks . . . . . . . . . . . . . . . 2-1
Doors . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Vehicle Security . . . . . . . . . . . . . . 2-15
Exterior Mirrors . . . . . . . . . . . . . . . 2-18
Interior Mirrors . . . . . . . . . . . . . . . . 2-19
Windows . . . . . . . . . . . . . . . . . . . . . 2-20
Roof . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Seats and Restraints . . . . . . . . . 3-1
Head Restraints . . . . . . . . . . . . . . . 3-2
Front Seats . . . . . . . . . . . . . . . . . . . . 3-3
Rear Seats . . . . . . . . . . . . . . . . . . . . 3-9
Safety Belts . . . . . . . . . . . . . . . . . . 3-10
Airbag System . . . . . . . . . . . . . . . . 3-17
Child Restraints . . . . . . . . . . . . . . 3-30 Storage
. . . . . . . . . . . . . . . . . . . . . . . 4-1
Storage Compartments . . . . . . . . 4-1
Additional Storage Features . . . 4-3
Instruments and Controls . . . . 5-1
Controls . . . . . . . . . . . . . . . . . . . . . . . 5-2
Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . . 5-7
Information Displays . . . . . . . . . . 5-31
Vehicle Messages . . . . . . . . . . . . 5-38
Vehicle Personalization . . . . . . . 5-47
Universal Remote System . . . . 5-53
Lighting . . . . . . . . . . . . . . . . . . . . . . . 6-1
Exterior Lighting . . . . . . . . . . . . . . . 6-1
Interior Lighting . . . . . . . . . . . . . . . . 6-5
Lighting Features . . . . . . . . . . . . . . 6-6
Infotainment System . . . . . . . . . 7-1
Introduction . . . . . . . . . . . . . . . . . . . . 7-1 Climate Controls
. . . . . . . . . . . . . 8-1
Climate Control Systems . . . . . . 8-1
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 8-6
Maintenance . . . . . . . . . . . . . . . . . . . 8-6
Driving and Operating . . . . . . . . 9-1
Driving Information . . . . . . . . . . . . . 9-2
Starting and Operating . . . . . . . 9-14
Engine Exhaust . . . . . . . . . . . . . . 9-25
Automatic Transmission . . . . . . 9-26
Manual Transmission . . . . . . . . . 9-29
Drive Systems . . . . . . . . . . . . . . . . 9-31
Brakes . . . . . . . . . . . . . . . . . . . . . . . 9-31
Ride Control Systems . . . . . . . . 9-35
Cruise Control . . . . . . . . . . . . . . . . 9-38
Driver Assistance Systems . . . 9-48
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 9-59
Towing . . . . . . . . . . . . . . . . . . . . . . . 9-64
Conversions and Add-Ons . . . 9-65

Black plate (8,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
3-8 Seats and Restraints
To stop recall movement, press one
of the memory or power seat
controls.
If something has blocked the driver
seat while recalling the exit position,
the recall may stop. Remove the
obstruction; then press and hold the
power seat control rearward for
two seconds. Try recalling the exit
position again. If the exit position is
still not recalling, see your dealer for
service.
Heated Front Seats
{Warning
If you cannot feel temperature
change or pain to the skin, the
seat heater may cause burns. To
reduce the risk of burns, people
with such a condition should use
care when using the seat heater,
especially for long periods of
time. Do not place anything on
the seat that insulates against(Continued)
Warning (Continued)
heat, such as a blanket, cushion,
cover, or similar item. This may
cause the seat heater to
overheat. An overheated seat
heater may cause a burn or may
damage the seat.
If equipped, the buttons are part of
the climate control system on the
center stack. To operate, the ignition
and the climate control system must be on. If the climate control system
is off, press the
Obutton to turn
it on.
Press
MorLto heat the driver or
passenger seat.
Press the button once for the
highest setting. With each press of
the button, the seat will change to
the next lower setting, and then to
the off setting. The lights near the
heated seat symbol on the display
indicate three for the highest setting
and one for the lowest.
The passenger seat may take
longer to heat up.
Remote Start Heated Seats
If equipped, when it is cold outside,
the heated seats can be turned on
automatically during a remote start.
The heated seats are canceled
when the ignition is turned on. Press
the button to use the heated seats
after the vehicle is started.

Black plate (1,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Instruments and Controls 5-1
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 5-2
Steering Wheel Controls . . . . . . 5-2
Heated Steering Wheel . . . . . . . 5-2
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Windshield Wiper/Washer . . . . . 5-3
Compass . . . . . . . . . . . . . . . . . . . . . 5-4
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Power Outlets . . . . . . . . . . . . . . . . . 5-5
Cigarette Lighter . . . . . . . . . . . . . . 5-6
Ashtrays . . . . . . . . . . . . . . . . . . . . . . 5-6
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . 5-7
Instrument Cluster (Base Level Cluster) . . . . . . . . . . . . . . . . . . . . . . 5-8
Instrument Cluster (Uplevel Cluster) . . . . . . . . . . . . . . . . . . . . 5-12
Speedometer . . . . . . . . . . . . . . . . 5-15
Odometer . . . . . . . . . . . . . . . . . . . . 5-15
Trip Odometer . . . . . . . . . . . . . . . 5-15
Tachometer . . . . . . . . . . . . . . . . . . 5-15 Fuel Gauge . . . . . . . . . . . . . . . . . . 5-16
Engine Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 5-17
Safety Belt Reminders . . . . . . . 5-18
Airbag Readiness Light . . . . . . 5-18
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . 5-19
Charging System Light . . . . . . 5-20
Malfunction Indicator Lamp . . . . . . . . . . . . . 5-20
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . 5-23
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . 5-24
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . 5-24
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . 5-24
Up-Shift Light . . . . . . . . . . . . . . . . 5-25
Lane Departure Warning (LDW) Light . . . . . . . . . . . . . . . . 5-25
Vehicle Ahead Indicator . . . . . . 5-26
Traction Off Light . . . . . . . . . . . . 5-26
StabiliTrak
®OFF Light . . . . . . . 5-26
Traction Control System (TCS)/StabiliTrak
®Light . . . . 5-27
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . 5-27
Tire Pressure Light . . . . . . . . . . 5-28 Engine Oil Pressure Light . . . . 5-28
Low Fuel Warning Light . . . . . . 5-29
Security Light . . . . . . . . . . . . . . . . 5-29
High-Beam On Light . . . . . . . . . 5-29
Front Fog Lamp Light . . . . . . . . 5-29
Lamps On Reminder . . . . . . . . . 5-30
Cruise Control Light . . . . . . . . . 5-30
Door Ajar Light . . . . . . . . . . . . . . 5-30
Information Displays
Power Flows
(eAssist Only) . . . . . . . . . . . . . . 5-31
Energy Information (eAssist Only) . . . . . . . . . . . . . . 5-32
Driver Information Center (DIC) (Base Level
Cluster) . . . . . . . . . . . . . . . . . . . . 5-32
Driver Information Center (DIC) (Uplevel Cluster) . . . . . 5-35
Vehicle Messages
Vehicle Messages . . . . . . . . . . . 5-38
Battery Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . 5-38
Brake System Messages . . . . 5-39
Compass Messages . . . . . . . . . 5-39
Cruise Control Messages . . . . 5-39
Door Ajar Messages . . . . . . . . . 5-40

Black plate (7,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Instruments and Controls 5-7
{Caution
If papers, pins, or other
flammable items are put in the
ashtray, hot cigarettes or other
smoking materials could ignite
them and possibly damage the
vehicle. Never put flammable
items in the ashtray.
Warning Lights,
Gauges, and
Indicators
Warning lights and gauges can
signal that something is wrong
before it becomes serious enough
to cause an expensive repair or
replacement. Paying attention to the
warning lights and gauges could
prevent injury.
Warning lights come on when there
could be a problem with a vehicle
function. Some warning lights come
on briefly when the engine is started
to indicate they are working.Gauges can indicate when there
could be a problem with a vehicle
function. Often gauges and warning
lights work together to indicate a
problem with the vehicle.
When one of the warning lights
comes on and stays on while
driving, or when one of the gauges
shows there may be a problem,
check the section that explains what
to do. Waiting to do repairs can be
costly and even dangerous.

Black plate (19,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Instruments and Controls 5-19
The airbag readiness light comes on
for several seconds when the
vehicle is started. If the light does
not come on then, have it fixed
immediately.
{Warning
If the airbag readiness light stays
on after the vehicle is started or
comes on while driving, it means
the airbag system might not be
working properly. The airbags in
the vehicle might not inflate in a
crash, or they could even inflate
without a crash. To help avoid
injury, have the vehicle serviced
right away.
Passenger Airbag Status
Indicator
The vehicle has a passenger
sensing system. SeePassenger
Sensing System on page 3-23 for
important safety information. The
instrument panel has a passenger
airbag status indicator.
When the vehicle is started, the
passenger airbag status indicator
will light ON and OFF for several
seconds as a system check. Then,
after several more seconds, the
status indicator will light either ON
or OFF to let you know the status of
the front outboard passenger frontal
airbag. If the word ON is lit on the
passenger airbag status indicator, it
means that the front outboard
passenger frontal airbag is allowed
to inflate.
If the word OFF is lit on the airbag
status indicator, it means that the
passenger sensing system has
turned off the front outboard
passenger frontal airbag.
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.

Black plate (1,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Lighting 6-1
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . . 6-1
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . . 6-1
Headlamp High/Low-Beam Changer . . . . . . . . . . . . . . . . . . . . . 6-2
Flash-to-Pass . . . . . . . . . . . . . . . . . 6-2
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . 6-2
Automatic Headlamp System . . . . . . . . . . . . . . . . . . . . . . 6-2
Hazard Warning Flashers . . . . . 6-3
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . 6-4
Fog Lamps . . . . . . . . . . . . . . . . . . . . 6-4
Interior Lighting
Instrument Panel Illumination Control . . . . . . . . . . . . . . . . . . . . . . 6-5
Dome Lamps . . . . . . . . . . . . . . . . . 6-5
Reading Lamps . . . . . . . . . . . . . . . 6-5
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . . . 6-6
Exit Lighting . . . . . . . . . . . . . . . . . . . 6-6
Battery Power Protection . . . . . . 6-7
Exterior Lighting
Exterior Lamp Controls
The exterior lamp control is on the
instrument panel on the outboard
side of the steering wheel.
Turn the control to the following
positions:
O(Off): Turns off the exterior
lamps. The knob returns to the
AUTO position after it is released.
Turn to
Oagain to reactivate the
AUTO mode. In Canada, the headlamps will
automatically reactivate when the
vehicle is shifted out of P (Park) on
automatic transmission vehicles,
and when the parking brake is
released on manual transmission
vehicles.
AUTO (Automatic):
Automatically
turns the exterior lamps on and off,
depending on outside lighting.
;(Parking Lamps): Turns on the
parking lamps including all lamps,
except the headlamps.
2(Headlamps): 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.

Black plate (3,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Lighting 6-3
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 controlis 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 toOor 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.
Hazard Warning Flashers
|(Hazard Warning Flashers):
Press this button on the center
stack above the audio system, 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.

Black plate (16,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
9-16 Driving and Operating
4. Set the parking brake. SeeParking Brake on page 9-32.
{Warning
Turning off the vehicle while
moving may cause loss of power
assist in the brake and steering
systems and disable the airbags.
While driving, only shut the
vehicle off in an emergency.
If the vehicle cannot be pulled over,
and must be shut off while driving,
turn the ignition to ACC/
ACCESSORY.
The ignition switch can bind in the
LOCK/OFF position with the wheels
turned off center. If this happens,
move the steering wheel from right
to left while turning the key to ACC/
ACCESSORY. If this does not work,
then the vehicle needs service.
2 (ACC/ACCESSORY): This
position unlocks the steering wheel.
Some accessories can be used in
this position. 3 (ON/RUN):
The ignition switch
stays in this position when the
engine is running. This position can
be used to operate the electrical
accessories, as well as to display
some warning and indicator lights.
This position can also be used for
service and diagnostics, and to
verify the proper operation of the
malfunction indicator lamp as may
be required for emission inspection
purposes.
The battery could be drained if the
key is left in the ON/RUN position
with the engine off. The vehicle
might not start if the battery is
allowed to drain for an extended
period of time.
4 (START): This position starts the
engine. When the engine starts,
release the key. The ignition switch
will return to ON/RUN for normal
driving.
If the ignition becomes difficult to
turn, see Keys on page 2-1.
Ignition Positions
(Keyless Access)
The vehicle may have an electronic
keyless ignition with pushbutton
start.
Pressing the button cycles it through
three modes, ACC/ACCESSORY,
ON/RUN/START, and Stopping the
Engine/OFF.
The transmitter must be in the
vehicle for the system to operate.
If the pushbutton start is not
working, the vehicle may be near a

Black plate (17,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Driving and Operating 9-17
strong radio antenna signal causing
interference to the keyless access
system. SeeRemote Keyless Entry
(RKE) System Operation on
page 2-3 for more information.
To shift out of P (Park), the vehicle
must be in ON/RUN and the brake
pedal must be applied.
Stopping the Engine/OFF (No
Indicator Lights): When the
vehicle is stopped, press the
ENGINE START/STOP button once
to turn the engine off.
If the vehicle is in P (Park), the
ignition will turn off, and Retained
Accessory Power (RAP) will remain
active. See Retained Accessory
Power (RAP) on page 9-23 for more
information.
If the vehicle is not in P (Park), the
ignition will return to ACC/
ACCESSORY and display a
message in the Driver Information
Center (DIC). See Transmission
Messages on page 5-46 for moreinformation. When the vehicle is
shifted into P (Park), the ignition
system will switch to OFF.
Do not turn the engine off when the
vehicle is moving. This will cause a
loss of power assist in the brake
and steering systems and disable
the airbags.
If the vehicle must be shut off in an
emergency:
1. Brake using a firm and steady
pressure. Do not pump the
brakes repeatedly. This may
deplete power assist, requiring
increased brake pedal force.
2. Shift the vehicle to N (Neutral). This can be done while the
vehicle is moving. After shifting
to N (Neutral), firmly apply the
brakes and steer the vehicle to a
safe location.
3. Come to a complete stop. Shift to P (Park) with an automatic
transmission, or Neutral with a
manual transmission. Turn the
ignition to LOCK/OFF. 4. Set the parking brake. See
Parking Brake on page 9-32.
{Warning
Turning off the vehicle while
moving may cause loss of power
assist in the brake and steering
systems and disable the airbags.
While driving, only shut the
vehicle off in an emergency.
If the vehicle cannot be pulled over,
and must be shut off while driving,
press and hold the ENGINE START/
STOP button for longer than
two seconds, or press twice in
five seconds.
ACC/ACCESSORY (Amber
Indicator Light): This mode allows
you to use some electrical
accessories when the engine is off.
With the ignition off, pressing the
button one time without the brake
pedal applied will place the ignition
system in ACC/ACCESSORY.

Black plate (45,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Driving and Operating 9-45
When braking is active, the brake
lights will come on. The automatic
braking may feel or sound different
than if the brakes were applied
manually. This is normal.
Stationary or Very Slow-Moving
Objects
{Warning
Adaptive Cruise Control (ACC)
may not detect and react to
stopped or slow-moving vehicles
ahead of you. For example, the
system may not brake for a
vehicle it has never detected
moving. This can occur in
stop-and-go traffic or when a
vehicle suddenly appears due to
a vehicle ahead changing lanes.
Your vehicle may not stop and
could cause a crash. Use caution
when using ACC. Your complete
attention is always required while
driving and you should be ready
to take action and apply the
brakes.ACC Automatically Disengages
ACC may automatically disengage
and the driver will need to manually
apply the brakes to slow the
vehicle when:
.The sensors are blocked.
.The traction control system
(TCS) or electronic stability
control system has activated or
been disabled.
.No traffic or other objects are
being detected.
.There is a fault in the system.
A message indicating that cruise is
disengaging will appear on the DIC
and the ACC active symbol will not
be displayed when ACC is no longer
active.
Notification to Resume ACC
ACC will maintain a follow gap
behind a detected vehicle and slow
your vehicle to a stop behind that
vehicle. If the stopped vehicle ahead has
driven away and ACC has not
resumed, the vehicle ahead symbol
will flash as a reminder to check
traffic ahead before proceeding. In
addition, three beeps will sound.
See
“Go Notifier” in“Collision/
Detection Systems” underVehicle
Personalization on page 5-47.
When the vehicle ahead drives
away, press RES+ or the
accelerator pedal to resume cruise
control. If stopped for more than
two minutes or if the driver door is
opened and the driver safety belt is
unbuckled, the ACC automatically
applies the electric parking brake to
hold the vehicle. The electric
parking brake status light will turn
on. See Parking Brake on
page 9-32. To resume ACC and
release the electric parking brake,
press the accelerator pedal.
A DIC warning message may
display indicating to shift to P (Park)
before exiting the vehicle. See
Vehicle Messages on page 5-38.