2013 BUICK REGAL fuel pressure

Black plate (5,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
Introduction v
Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. For more
information on the symbol, refer to
the Index.
9:Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
%:Audio Steering Wheel Controls
or OnStar®
$: Brake System Warning Light
":Charging System
I:Cruise Control
B: Engine Coolant Temperature
O:Exterior Lamps
g:First Responder
#:Fog Lamps
.: Fuel Gauge
+:Fuses
3: Headlamp High/Low-Beam
Changer
(: Heated Steering Wheel
j:LATCH System Child
Restraints
*: Malfunction Indicator Lamp
::Oil Pressure
}:Power
/:Remote Vehicle Start
>:Safety Belt Reminders
7:Tire Pressure Monitor
d:Traction Control/StabiliTrak®
M:Windshield Washer Fluid

Black plate (1,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
In Brief 1-1
In Brief
Instrument Panel
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information
Initial Drive Information . . . . . . . . 1-4
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . 1-4
Remote Vehicle Start . . . . . . . . . 1-4
Door Locks . . . . . . . . . . . . . . . . . . . 1-5
Trunk Release . . . . . . . . . . . . . . . . 1-5
Windows . . . . . . . . . . . . . . . . . . . . . . 1-6
Seat Adjustment . . . . . . . . . . . . . . 1-6
Heated Seats . . . . . . . . . . . . . . . . . 1-7
Head Restraint Adjustment . . . . 1-8
Safety Belts . . . . . . . . . . . . . . . . . . . 1-8
Passenger Sensing System . . . 1-8
Mirror Adjustment . . . . . . . . . . . . . 1-9
Steering Wheel Adjustment . . . 1-9
Interior Lighting . . . . . . . . . . . . . . . 1-9
Exterior Lighting . . . . . . . . . . . . . 1-10 Windshield Wiper/Washer . . . . 1-11
Climate Controls . . . . . . . . . . . . . 1-12
Transmission . . . . . . . . . . . . . . . . 1-13
Vehicle Features
Radio(s) . . . . . . . . . . . . . . . . . . . . . 1-14
Satellite Radio . . . . . . . . . . . . . . . 1-15
Portable Audio Devices . . . . . . 1-15
Bluetooth
®. . . . . . . . . . . . . . . . . . . 1-16
Steering Wheel Controls . . . . . 1-16
Cruise Control . . . . . . . . . . . . . . . 1-16
Infotainment System . . . . . . . . . 1-17
Driver Information Center (DIC) . . . . . . . . . . . . . . . 1-17
Vehicle Personalization . . . . . . 1-17
Ultrasonic Parking Assist . . . . 1-18
Power Outlets . . . . . . . . . . . . . . . 1-18
Universal Remote System . . . 1-18
Sunroof . . . . . . . . . . . . . . . . . . . . . . 1-18
eAssist Features
eAssist®Overview . . . . . . . . . . . 1-19
High Voltage Safety Information . . . . . . . . . . . . . . . . . 1-20 Driver Efficiency Gauge . . . . . . 1-20
Automatic Engine Start/Stop
Feature . . . . . . . . . . . . . . . . . . . . . 1-20
Regenerative Braking . . . . . . . . 1-21
Battery . . . . . . . . . . . . . . . . . . . . . . . 1-21
Service . . . . . . . . . . . . . . . . . . . . . . 1-21
Performance and Maintenance
Traction Control System (TCS) . . . . . . . . . . . . . . 1-21
StabiliTrak
®System . . . . . . . . . 1-22
Tire Pressure Monitor . . . . . . . . 1-22
Tire Sealant and Compressor Kit . . . . . . . . . . . . . 1-22
Engine Oil Life System . . . . . . 1-23
Fuel E85 (85% Ethanol) . . . . . 1-23
Driving for Better Fuel Economy . . . . . . . . . . . . . . . . . . . 1-23
Roadside Assistance Program . . . . . . . . . . . . . . . . . . . . 1-24
OnStar
®. . . . . . . . . . . . . . . . . . . . . 1-24

Black plate (1,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
Instruments and Controls 5-1
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 5-2
Steering Wheel Controls . . . . . . 5-2
Heated Steering Wheel . . . . . . . 5-3
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Windshield Wiper/Washer . . . . . 5-3
Compass . . . . . . . . . . . . . . . . . . . . . 5-4
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Power Outlets . . . . . . . . . . . . . . . . . 5-6
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . 5-8
Instrument Cluster . . . . . . . . . . . . 5-9
Speedometer . . . . . . . . . . . . . . . . 5-11
Odometer . . . . . . . . . . . . . . . . . . . . 5-11
Trip Odometer . . . . . . . . . . . . . . . 5-11
Tachometer . . . . . . . . . . . . . . . . . . 5-11
Fuel Gauge . . . . . . . . . . . . . . . . . . 5-11
Driver Efficiency Gauge . . . . . . 5-12
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 5-12
Safety Belt Reminders . . . . . . . 5-13 Airbag Readiness Light . . . . . . 5-14
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . 5-14
Charging System Light . . . . . . 5-15
Malfunction Indicator Lamp . . . . . . . . . . . . . 5-15
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . 5-18
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . 5-18
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . 5-19
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . 5-19
Up-Shift Light . . . . . . . . . . . . . . . . 5-20
Traction Off Light . . . . . . . . . . . . 5-20
StabiliTrak
®OFF Light . . . . . . . 5-20
Traction Control System (TCS)/StabiliTrak
®Light . . . . 5-20
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . 5-21
Tire Pressure Light . . . . . . . . . . 5-22
Engine Oil Pressure Light . . . . 5-22
Low Fuel Warning Light . . . . . . 5-23
Security Light . . . . . . . . . . . . . . . . 5-23
High-Beam On Light . . . . . . . . . 5-23
Front Fog Lamp Light . . . . . . . . 5-23 Lamps On Reminder . . . . . . . . . 5-24
Cruise Control Light . . . . . . . . . 5-24
Door Ajar Light . . . . . . . . . . . . . . 5-24
Information Displays
Driver Information
Center (DIC) . . . . . . . . . . . . . . . 5-24
Vehicle Messages
Vehicle Messages . . . . . . . . . . . 5-28
Battery Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . 5-29
Brake System Messages . . . . 5-29
Compass Messages . . . . . . . . . 5-29
Door Ajar Messages . . . . . . . . . 5-30
Engine Cooling System Messages . . . . . . . . . . . . . . . . . . 5-30
Engine Oil Messages . . . . . . . . 5-31
Engine Power Messages . . . . 5-31
Fuel System Messages . . . . . . 5-31
Key and Lock Messages . . . . . 5-31
Object Detection System Messages . . . . . . . . . . . . . . . . . . 5-32
Ride Control System Messages . . . . . . . . . . . . . . . . . . 5-32
Security Messages . . . . . . . . . . 5-33
Starting the Vehicle Messages . . . . . . . . . . . . . . . . . . 5-33

Black plate (27,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
Instruments and Controls 5-27
Vehicle Information Menu
(OPTION) Items
Press MENU on the turn signal
lever until the OPTION menu is
displayed. Use
w/xto scroll
through the following menu items:
.Unit
.Tire Pressure
.Remaining Oil Life
.Jump Start (eAssist Only)
Unit
Move
w/xto switch between
metric or US when the Unit display
is active. Press SET/CLR to confirm
the setting. This will change the
displays on the cluster and DIC to
either metric or English (US)
measurements.
Tire Pressure
The display will show a vehicle with
the approximate pressures of all
four tires. Tire pressure is displayed in either kilopascal (kPa) or pounds
per square inch (psi). See
Tire
Pressure Monitor System on
page 10‑50 andTire Pressure
Monitor Operation on page 10‑51 for
more information.
Remaining Oil Life
This display shows an estimate of
the oil's remaining useful life.
If REMAINING OIL LIFE 99% is
displayed, that means 99% of the
current oil life remains.
When the remaining oil life is low,
the CHANGE ENGINE OIL SOON
message will appear on the display.
See Engine Oil Messages on
page 5‑31. The oil should be
changed as soon as possible. See
Engine Oil on page 10‑10. In
addition to the Engine Oil Life
System monitoring the oil life,
additional maintenance is
recommended in the Maintenance
Schedule in this manual. See
Maintenance Schedule on
page 11‑3 for more information. Remember, the Remaining Oil Life
display must be reset after each oil
change. It will not reset itself. Also,
be careful not to reset the
Remaining Oil Life display
accidentally at any time other than
when the oil has just been changed.
It cannot be reset accurately until
the next oil change. To reset the
Engine Oil Life System, press SET/
CLR while the Remaining Oil Life
display is active. See
Engine Oil
Life System on page 10‑12.
Jump Start (eAssist Only)
This display allows for on-board
jump starting of the vehicle. See
“Jump Starting (On-board with
eAssist Only)” for more information.
ECO Drive Assist Menu (ECO)
Items
This menu is only available on some
vehicles. Press MENU on the turn
signal lever until ECO Menu is
displayed. Use
w/xto scroll
through the following menu items:
.Best Average Fuel Economy

Black plate (31,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
Instruments and Controls 5-31
HIGH COOLANT
TEMPERATURE
This message displays if the coolant
temperature is hot. SeeEngine
Overheating on page 10‑20.
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 Oil Life System.
See Engine Oil Life System on
page 10‑12, Driver Information
Center (DIC) on page 5‑24, Engine
Oil on page 10‑10, and Maintenance
Schedule on page 11‑3.
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
On some vehicles, this message
may display when the engine oil
level is too low. Check the oil level.
See Engine Oil on page 10‑10.
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 the vehicle
serviced by your dealer.
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
message stays on, the vehicle
should be taken to your dealer 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.
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
Transmitter Battery”
underRemote
Keyless Entry (RKE) System
Operation on page 2‑3.

Black plate (22,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
9-22 Driving and Operating
There are several conditions which
may prevent an auto stop or cause
an auto start.
The Engine Will Remain
Running When:
.The engine, transmission,
or high voltage battery is not
warmed up yet.
.The outside temperature is less
than−20°C (−4°F).
.The air conditioning or defrost
system need the compressor to
maintain vehicle comfort. See
Dual Automatic Climate Control
System on page 8‑1 The warmer
it is outside, the shorter the time
before the engine is restarted to
provide cabin cooling. To
maximize fuel economy, use the
eco air conditioning mode.
.The shift lever is in P (Park),
N (Neutral), R (Reverse),
or M (Manual Mode).
.The high voltage battery pack
charge is low.
.The hood is not fully closed.
.Brake pedal pressure is low.
.If the MIL is on, auto stop may
be prevented.
.High humidity is detected.
The Engine Will Restart When:
.The brake pedal is released.
.The accelerator pedal is applied.
.Shifting out of D (Drive) to any
other gear.
.The air conditioning or defrost
system need the compressor to
maintain vehicle comfort. See
Dual Automatic Climate Control
System on page 8‑1. The
warmer it is outside, the shorter
the time before the engine is
restarted to provide cabin
cooling. To maximize fuel
economy, use the eco air
conditioning mode.
.The climate control system is
turned from off to normal air
conditioning or defrost. See Dual
Automatic Climate Control
System on page 8‑1.
.The engine is required to run for
either heater or climate control
performance. See Dual
Automatic Climate Control
System on page 8‑1.
.The high voltage battery pack
charge is low and requires
recharging.
.Auto stop time is greater than
two minutes.
.The hood is opened.
Engine Heater
The engine coolant heater,
if available, can help in cold weather
conditions at or below −18°C (0°F)
for easier starting and better fuel
economy during engine warm-up.
Plug in the coolant heater at least
four hours before starting the
vehicle. An internal thermostat in

Black plate (30,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
9-30 Driving and Operating
Manual Transmission
This is the shift pattern for the
six-speed manual transmission.
To operate the transmission:
Notice:Do not rest your hand on
the shift lever while driving. The
pressure could cause premature
wear in the transmission. The
repairs would not be covered by
the vehicle warranty. Notice:
Do not rest your foot on
the clutch pedal while driving or
while stopped. The pressure can
cause premature wear in the
clutch. The repairs would not be
covered by the vehicle warranty.
1 (First): Press the clutch pedal
fully to the pedal stop and shift into
1 (First). Then slowly let up on the
clutch pedal as you press the
accelerator pedal.
If you come to a complete stop and
it is hard to shift into 1 (First), put
the shift lever in Neutral and let up
on the clutch. Press the clutch pedal
back down. Then shift into 1 (First).
2 (Second): Press the clutch pedal
as you let up on the accelerator
pedal and shift into 2 (Second).
Then, slowly let up on the clutch
pedal as you press the accelerator
pedal. 3 (Third), 4 (Fourth), 5 (Fifth), and
6 (Sixth):
Shift into 3 (Third),
4 (Fourth), 5 (Fifth), and 6 (Sixth) the
same way you do for 2 (Second).
Slowly let up on the clutch pedal as
you press the accelerator pedal. For
the best fuel economy, use 6 (Sixth)
gear whenever vehicle speed and
driving conditions allow.
The vehicle may have an up-shift
light in the instrument cluster. See
Up-Shift Light on page 5‑20.
{WARNING
If you skip a gear when you
downshift, you could lose control
of the vehicle. You could injure
yourself or others. Do not shift
down more than one gear at a
time when you downshift.

Black plate (10,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
10-10 Vehicle Care
1.Engine Air Cleaner/Filter on
page 10‑14.
2. Engine Cover.
3. Engine Cooling Fans (Out of View). See Cooling System on
page 10‑16.
4. Engine Oil Fill Cap. See Engine
Oil on page 10‑10.
5. Engine Oil Dipstick (Out of View). See Engine Oil on
page 10‑10.
6. High Voltage Cable (Orange Color).
7. Transmission Fluid Cap. See Automatic Transmission Fluid on
page 10‑13.
8. Brake Master Cylinder Reservoir. See Brakes on
page 10‑23.
9. Battery (Under Cover). See Battery on page 10‑26.
10. Coolant Surge Tank and Pressure Cap. See Engine
Coolant on page 10‑17. 11.
Engine Compartment Fuse
Block on page 10‑35.
12. Windshield Washer Fluid Reservoir. See Washer Fluid
on page 10‑23.
Engine Oil
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
.Always use engine oil approved
to the proper specification and of
the proper viscosity grade. See
“Selecting the Right Engine Oil”
in this section.
.Check the engine oil level
regularly and maintain the
proper oil level. See “Checking
Engine Oil” and“When to Add
Engine Oil” in this section.
.Change the engine oil at the
appropriate time. See Engine Oil
Life System on page 10‑12.
.Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
Checking Engine Oil
It is a good idea to check the engine
oil level at each fuel fill. In order to
get an accurate reading, the oil
must be warm and the vehicle must
be on level ground. The engine oil
dipstick handle is a loop. See
Engine Compartment Overview on
page 10‑5 for the location of the
engine oil dipstick.
Obtaining an accurate oil level
reading is essential:
1. If the engine has been running recently, turn off the engine and
allow several minutes for the oil
to drain back into the oil pan.
Checking the oil level too soon
after engine shutoff will not
provide an accurate oil level
reading.