automatic transmission BUICK REGAL 2013 Owner's Guide

Black plate (90,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
10-90 Vehicle Care
To tow the vehicle behind another
vehicle for recreational purposes,
such as behind a motor home, see
“Recreational Vehicle Towing”in this
section.
Recreational Vehicle
Towing
Recreational vehicle towing means
towing the vehicle behind another
vehicle, such as behind a motor
home. The two most common types
of recreational vehicle towing are
known as dinghy towing and dolly
towing. Dinghy towing is towing the
vehicle with all four wheels on the
ground. Dolly towing is towing the
vehicle with two wheels on the
ground and two wheels up on a
device known as a dolly. Here are some important things to
consider before recreational vehicle
towing:
.What is the towing capacity of
the towing vehicle? Be sure to
read the tow vehicle
manufacturer's
recommendations.
.What is the distance that will be
traveled? Some vehicles have
restrictions on how far and how
long they can tow.
.Is the proper towing equipment
going to be used? See your
dealer or trailering professional
for additional advice and
equipment recommendations.
.Is the vehicle ready to be
towed? Just as preparing the
vehicle for a long trip, make sure
the vehicle is prepared to be
towed.
Dinghy Towing (With
Automatic Transmission)
Notice:
If the vehicle is towed
with all four wheels on the
ground, the drivetrain
components could be damaged.
The repairs would not be covered
by the vehicle warranty. Do not
tow the vehicle with all four
wheels on the ground.
Vehicles with an automatic
transmission should not be towed
with all four wheels on the ground.

Black plate (92,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
10-92 Vehicle Care
3. Shift the automatic transmissioninto P (Park) or a manual
transmission into 1 (First) gear.
4. Firmly set the parking brake.
5. Use an adequate clamping device designed for towing to
ensure that the front wheels are
locked into the straight-ahead
position.
6. Secure the vehicle to the dolly following the manufacturer's
instructions.
7. Release the parking brake only after the vehicle being towed is
firmly attached to the towing
vehicle.
8. Turn the ignition to LOCK/OFF.Dolly Towing from the Rear
The vehicle cannot be dolly towed
from the rear.
Appearance Care
Exterior Care
Locks
Locks are lubricated at the factory.
Use a de-icing agent only when
absolutely necessary, and have the
locks greased after using. See
Recommended Fluids and
Lubricants.
Washing the Vehicle
To preserve the vehicle's finish,
wash it often and out of direct
sunlight.
Notice: Do not use
petroleum-based, acidic,
or abrasive cleaning agents as
they can damage the vehicle's
paint, metal, or plastic parts.
If damage occurs, it would not be
covered by the vehicle's warranty.
Approved cleaning products can
be obtained from your dealer.

Black plate (4,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
11-4 Service and Maintenance
.Check tire inflation pressures.
SeeTire Pressure on
page 10‑48.
.Inspect tire wear. See Tire
Inspection on page 10‑54.
.Visually check for fluid leaks.
.Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter on
page 10‑14.
.Inspect brake system.
.Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of
wear. See Exterior Care on
page 10‑92.
.Check restraint system
components. See Safety System
Check on page 3‑15.
.Visually inspect fuel system for
damage or leaks.
.Visually inspect exhaust system
and nearby heat shields for
loose or damaged parts.
.Lubricate body components. See
Exterior Care on page 10‑92.
.Check starter switch. See Starter
Switch Check on page 10‑27.
.Check automatic transmission
shift lock control function. See
Automatic Transmission Shift
Lock Control Function Check on
page 10‑27.
.Check ignition transmission lock.
See Ignition Transmission Lock
Check on page 10‑28.
.Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check on
page 10‑28.
.Check accelerator pedal for
damage, high effort, or binding.
Replace if needed.
.Visually inspect gas strut for
signs of wear, cracks, or other
damage. Check the hold open
ability of the strut. See your
dealer if service is required.
.Check tire sealant expiration
date, if equipped. See Tire
Sealant and Compressor Kit on
page 10‑64 orTire Sealant and
Compressor Kit on page 10‑71.
.Inspect sunroof track and seal,
if equipped. See Sunroof on
page 2‑19.

Black plate (12,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
11-12 Service and Maintenance
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
UsageFluid/Lubricant
Engine Oil Use only engine oil licensed to the dexos1 specfication, or equivalent, of
the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is
recommended. See Engine Oil on page 10‑10.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant.
See Engine Coolant on page 10‑17.
Hydraulic Brake/Clutch System DOT 3 Hydraulic Brake Fluid (GM Part No. 88862806, in Canada 88863462).
Windshield Washer Automotive windshield washer fluid that meets regional freeze protection requirements.
Hydraulic Power Steering System DEXRON
®-VI Automatic Transmission Fluid.
Automatic Transmission (2.4L Engine) DEXRON
®-VI Automatic Transmission Fluid.
Automatic Transmission (2.0L Engine) Automatic Transmission Fluid (GM Part No. 19256039, in Canada 19256040).
Manual Transmission See your dealer.

Black plate (3,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
Technical Data 12-3
ApplicationCapacities
Metric English
Transmission Fluid* (Drain and Refill)
2.0L L4 Engine, 6–Speed Automatic (Transmission
Requires No Fluid Replacement) — —
2.4L L4 Engine, 6–Speed Automatic 8.4 L 8.9 qt
Wheel Nut Torque 150 Y110 lb ft
*See Automatic Transmission Fluid on page 10‑13 for information on checking fluid level.
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this
manual. Recheck fluid level after filling.
Engine Specifications
Engine VIN Code Spark Plug Gap
2.0L L4 LHU Engine V0.9 mm (0.035 in)
2.4L L4 LEA Engine R0.9 mm (0.035 in)
2.4L L4 LUK Engine R0.9 mm (0.035 in)

Black plate (5,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
OnStar 14-5
OnStar Mobile App
Download the OnStar RemoteLink
mobile app to select Apple, Android
and BlackBerry devices to check
vehicle fuel level, oil life, or tire
pressure; to start the vehicle (if
equipped) or unlock it; or to connect
to an OnStar Advisor. For OnStar
RemoteLink information and
compatibility, see www.onstar.com
(U.S.), www.onstar.ca (Canada).
Diagnostics
OnStar Vehicle Diagnostics will
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
major vehicle systems. It also
checks the tire pressures, if the
vehicle is equipped with the Tire
Pressure Monitoring System. If a
diagnostics check is needed
between e-mails, press
Q, and an
Advisor can run a check.
OnStar Additional
Information
Transferring Service
PressQto request account transfer
eligibility information. The Advisor
can assist in canceling or removing
account information. If OnStar
receives information that vehicle
ownership has changed, OnStar
may send a voice message to the
vehicle, requesting updated account
information.
Reactivation for Subsequent
Owners
PressQand follow the prompts to
speak to an Advisor as soon as
possible after acquiring the vehicle.
The Advisor will update vehicle
records and will explain the OnStar
service offers and options available.
How OnStar Service Works
Automatic Crash Response,
Emergency Services, Crisis Assist,
Stolen Vehicle Assistance, Vehicle
Diagnostics, Remote Door Unlock,
Roadside Assistance, Turn-by-Turn
Navigation, and Hands-Free Calling
are available on most vehicles. Not
all OnStar services are available
everywhere or on all vehicles. For
more information, a full description
of OnStar services, system
limitations, and OnStar terms and
conditions:
.In the U.S. see www.onstar.com
(U.S.) or call 1-888-4-ONSTAR.
(1-888-466-7827).
.In Canada see www.onstar.ca
(Canada) or call
1-888-4-ONSTAR.
(1-888-466-7827).
.TTY 1-877-248-2080.
.PressQto speak with an
Advisor.

Black plate (1,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
INDEX i-1
A
Accessories andModifications . . . . . . . . . . . . . . . . . 10-3
Accessory Power . . . . . . . . . . . . . . 9-23
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . . 9-51
Additional Information
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-5
Adjustments Lumbar, Front Seats . . . . . . . . . . . 3-4
Air Cleaner/Filter, Engine . . . . . 10-14
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . 8-6
Air Intake . . . . . . . . . . . . . . . . . . . . . . . 8-6
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 8-6
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . 3-28
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . 3-21
Passenger Sensing
System . . . . . . . . . . . . . . . . . . . . . . 3-23
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-21 Airbag System (cont'd)
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . 3-21
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-20
Where Are the Airbags? . . . . . . 3-19
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . 3-27
Passenger Status Indicator . . . 5-14
Readiness Light . . . . . . . . . . . . . . 5-14
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . 3-27
System Check . . . . . . . . . . . . . . . . 3-17
Alarm Vehicle Security . . . . . . . . . . . . . . 2-13
AM-FM Radio . . . . . . . . . . . . . . . . . . . 7-9
Antenna Satellite Radio . . . . . . . . . . . . . . . . 7-15
Antilock Brake System (ABS) . . . . . . . . . . . . . . . . 9-31
Warning Light . . . . . . . . . . . . . . . . . 5-19
Appearance Care
Exterior . . . . . . . . . . . . . . . . . . . . . 10-92
Interior . . . . . . . . . . . . . . . . . . . . . . 10-95 Assistance Program,
Roadside . . . . . . . . . . . . . . 13-7, 13-11
Audio Players . . . . . . . . . . . . . . . . . 7-15 CD . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15
MP3 . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16
Audio System Backglass Antenna . . . . . . . . . . . 7-14
Radio Reception . . . . . . . . . . . . . . 7-13
Theft-Deterrent Feature . . . . . . . . 7-2
Automatic Headlamp System . . . . . . . . . . . . . 6-2
Transmission . . . . . . . . . . . . . . . . . 9-27
Transmission Fluid . . . . . . . . . 10-13
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 9-29
Shift Lock ControlFunction Check . . . . . . . . . . . 10-27
Auxiliary Devices . . . . . . . . . . . . . . . . . . . . . . . 7-18

Black plate (2,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
i-2 INDEX
B
Battery . . . . . . . . . . . . . . . . . . . . . . . 10-26Jump Starting . . . . . . . . 10-85, 10-87
Power Protection . . . . . . . . . . . . . . 6-6
Voltage and ChargingMessages . . . . . . . . . . . . . . . . . . . 5-29
Blade Replacement, Wiper . . . 10-28
Bluetooth . . . . . . . . . . 7-22, 7-24, 7-27
Brake
System Warning Light . . . . . . . . 5-18
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 10-23
Antilock . . . . . . . . . . . . . . . . . . . . . . . 9-31
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 9-34
Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-24
Parking . . . . . . . . . . . . . . . . . . . . . . . 9-32
System Messages . . . . . . . . . . . . 5-29
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
Break-In, New Vehicle . . . . . . . . . 9-14
Bulb Replacement . . . . . . . . . . . . 10-33 Fog Lamps . . . . . . . . . . . . . 10-32, 6-4
Halogen Bulbs . . . . . . . . . . . . . . 10-30
Headlamp Aiming . . . . . . . . . . . 10-29
Headlamps . . . . . . . . . . . . . . . . . 10-30
Headlamps, Front TurnSignal, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . 10-30 Bulb Replacement (cont'd)
High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . 10-30
License Plate Lamps . . . . . . . 10-33
Taillamps, Turn Signal,
Stoplamps, and
Back-up Lamps . . . . . . . . . . . 10-32
Buying New Tires . . . . . . . . . . . . . 10-57
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 5-4
California Fuel Requirements . . . . . . . . . . . 9-46
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 10-3
Warning . . . . . . . . . . . . . . . . . . . . . . 10-2
Canadian Vehicle Owners . . . . . . . . iii
Capacities and Specifications . . . . . . . . . . . . . . . . 12-2
Carbon Monoxide
Engine Exhaust . . . . . . . . . . . . . . . 9-26
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Winter Driving . . . . . . . . . . . . . . . . . 9-8
Cargo Net . . . . . . . . . . . . . . . . . . . . . . 4-3
Cautions, Danger, and Warnings . . . . . . . . . . . . . . . . . . . . . . . . iv CD Player . . . . . . . . . . . . . . . . . . . . . 7-15
Center Console Storage . . . . . . . . 4-3
Chains, Tire . . . . . . . . . . . . . . . . . . 10-61
Charging System Light . . . . . . . . 5-15
Check
Engine Light . . . . . . . . . . . . . . . . . . 5-15
IgnitionTransmission Lock . . . . . . . . 10-28
Child Restraints Infants and YoungChildren . . . . . . . . . . . . . . . . . . . . . 3-31
Lower Anchors and Tethers for Children . . . . . . . . . 3-37
Older Children . . . . . . . . . . . . . . . . 3-29
Securing . . . . . . . . . . . . . . . . 3-44, 3-46
Systems . . . . . . . . . . . . . . . . . . . . . . 3-34
Circuit Breakers . . . . . . . . . . . . . . 10-35
Cleaning Exterior Care . . . . . . . . . . . . . . . 10-92
Interior Care . . . . . . . . . . . . . . . . 10-95
Climate Control Systems
Dual Automatic . . . . . . . . . . . . . . . . 8-1
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Cluster, Instrument . . . . . . . . . . . . . 5-9
Clutch, Hydraulic . . . . . . . . . . . . . 10-14
Collision Damage Repair . . . . . 13-14

Black plate (4,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
i-4 INDEX
E
E85 Fuel . . . . . . . . . . . . . . . . . . . . . . . 9-48
Electric Parking Brake Light . . . 5-18
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . 9-51
Electrical System Engine Compartment
Fuse Block . . . . . . . . . . . . . . . . 10-35
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-35
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . 10-39
Overload . . . . . . . . . . . . . . . . . . . 10-34
Emergency OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-2
Engine
Air Cleaner/Filter . . . . . . . . . . . 10-14
Check and Service EngineSoon Light . . . . . . . . . . . . . . . . . . 5-15
Compartment Overview . . . . . . . 10-5
Coolant . . . . . . . . . . . . . . . . . . . . . 10-17
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 5-12
Coolant Temperature Warning Light . . . . . . . . . . . . . . . 5-21
Cooling System . . . . . . . . . . . . . 10-16 Engine (cont'd)
Cooling System Messages . . . 5-30
Drive Belt Routing . . . . . . . . . . . . 12-4
Exhaust . . . . . . . . . . . . . . . . . . . . . . 9-26
Heater . . . . . . . . . . . . . . . . . . . . . . . . 9-22
Oil Life System . . . . . . . . . . . . . 10-12
Oil Messages . . . . . . . . . . . . . . . . . 5-31
Overheating . . . . . . . . . . . . . . . . 10-20
Power Messages . . . . . . . . . . . . . 5-31
Pressure Light . . . . . . . . . . . . . . . . 5-22
Running While Parked . . . . . . . . 9-26
Starting . . . . . . . . . . . . . . . . . . . . . . . 9-19
Entry Lighting . . . . . . . . . . . . . . . . . . . 6-6
Event Data Recorders . . . . . . . . 13-19
Exit Lighting . . . . . . . . . . . . . . . . . . . . 6-6
Extender, Safety Belt . . . . . . . . . . 3-15
Exterior Lamp Controls . . . . . . . . . 6-1
Exterior Lamps Off Reminder . . . 6-2
F
Filter, Engine Air Cleaner . . . . . . . . . 10-14
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 6-2
Flashers, Hazard Warning . . . . . . 6-3
Flat Tire . . . . . . . . . . . . . . . . . . . . . . 10-62 Changing . . . . . . . . . . . . . . . . . . . 10-79 Floor Mats . . . . . . . . . . . . . . . . . . . . 10-98
Fluid
Automatic Transmission . . . . 10-13
Brakes . . . . . . . . . . . . . . . . . . . . . . 10-24
Power Steering . . . . . . 10-22, 10-23
Washer . . . . . . . . . . . . . . . . . . . . . 10-23
Fog Lamps
Bulb Replacement . . . . . . 10-32, 6-4
Folding Mirrors . . . . . . . . . . . . . . . . 2-16
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . 3-3
Heated . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-45 Additives . . . . . . . . . . . . . . . . . . . . . 9-47
E85 (85% Ethanol) . . . . . . . . . . . 9-48
Economy Driving . . . . . . . . . . . . . 1-23
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 9-50
Filling the Tank . . . . . . . . . . . . . . . 9-49
Foreign Countries . . . . . . . . . . . . 9-47
Gasoline Specifications . . . . . . . 9-46
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Low Fuel Warning Light . . . . . . . 5-23

Black plate (7,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
INDEX i-7
Lights (cont'd)Service Electric Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . 5-19
StabiliTrak
®OFF . . . . . . . . . . . . . 5-20
Tire Pressure . . . . . . . . . . . . . . . . . 5-22
Traction Control System (TCS)/StabiliTrak
®. . . . . . . . . . 5-20
Traction Off . . . . . . . . . . . . . . . . . . . 5-20
Up-Shift . . . . . . . . . . . . . . . . . . . . . . 5-20
Locks Door . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Power Door . . . . . . . . . . . . . . . . . . . 2-10
Safety . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Loss of Control . . . . . . . . . . . . . . . . . 9-5
Low Fuel Warning Light . . . . . . . . 5-23
Lower Anchors and Tethers
for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . 3-37
Lumbar Adjustment . . . . . . . . . . . . . 3-4 Front Seats . . . . . . . . . . . . . . . . . . . . 3-4
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . .11-15
Maintenance Schedule Recommended Fluidsand Lubricants . . . . . . . . . . . . .11-12
Malfunction Indicator Lamp . . . . 5-15
Manual Mode . . . . . . . . . . . . . . . . . . 9-29
Manual Transmission . . . . . . . . . . 9-30
Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-14
Messages
Battery Voltage andCharging . . . . . . . . . . . . . . . . . . . . 5-29
Brake System . . . . . . . . . . . . . . . . 5-29
Compass . . . . . . . . . . . . . . . . . . . . . 5-29
Door Ajar . . . . . . . . . . . . . . . . . . . . . 5-30
Engine Cooling System . . . . . . . 5-30
Engine Oil . . . . . . . . . . . . . . . . . . . . 5-31
Engine Power . . . . . . . . . . . . . . . . 5-31
Fuel System . . . . . . . . . . . . . . . . . . 5-31
Key and Lock . . . . . . . . . . . . . . . . . 5-31
Object Detection System . . . . . 5-32
Ride Control System . . . . . . . . . . 5-32 Messages (cont'd)
Security . . . . . . . . . . . . . . . . . . . . . . 5-33
Starting the Vehicle . . . . . . . . . . . 5-33
Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-33
Transmission . . . . . . . . . . . . . . . . . 5-34
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 5-28
Window . . . . . . . . . . . . . . . . . . . . . . . 5-34
Mirrors Automatic Dimming
Rearview . . . . . . . . . . . . . . . . . . . . 2-16
Convex . . . . . . . . . . . . . . . . . . . . . . . 2-15
Folding . . . . . . . . . . . . . . . . . . . . . . . 2-16
Heated . . . . . . . . . . . . . . . . . . . . . . . 2-16
Power . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . 10-50
MP3 . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16
N
Navigation OnStar®. . . . . . . . . . . . . . . . . . . . . . 14-2
Net Cargo . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Net, Convenience . . . . . . . . . . . . . . 4-3
New Vehicle Break-In . . . . . . . . . . 9-14