
Black plate (88,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
10-88 Vehicle Care
can be removed by rubbing with a
clean cloth. SeeRecommended
Fluids and Lubricants on
page 11-12.
Tires
Use a stiff brush with tire cleaner to
clean the tires.
{Caution
Using petroleum-based tire
dressing products on the vehicle
may damage the paint finish and/
or tires. When applying a tire
dressing, always wipe off any
overspray from all painted
surfaces on the vehicle.
Wheels and Trim —Aluminum
or Chrome
Use a soft, clean cloth with mild
soap and water to clean the wheels.
After rinsing thoroughly with clean
water, dry with a soft, clean towel.
A wax may then be applied.
{Caution
Chrome wheels and other chrome
trim may be damaged if the
vehicle is not washed after driving
on roads that have been sprayed
with magnesium, calcium,
or sodium chloride. These
chlorides are used on roads for
conditions such as ice and dust.
Always wash the chrome with
soap and water after exposure.
{Caution
To avoid surface damage, do not
use strong soaps, chemicals,
abrasive polishes, cleaners,
brushes, or cleaners that contain
acid on aluminum or
chrome-plated wheels. Use only
approved cleaners. Also, never
drive a vehicle with aluminum or
chrome-plated wheels through an
(Continued)
Caution (Continued)
automatic car wash that uses
silicone carbide tire cleaning
brushes. Damage could occur
and the repairs would not be
covered by the vehicle warranty.
Steering, Suspension, and
Chassis Components
Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of wear at
least once a year.
Inspect power steering for proper
hook-up, binding, leaks, cracks,
chafing, etc.
Visually check constant velocity joint
boots and axle seals for leaks.
Body Component Lubrication
Lubricate all key lock cylinders,
hood hinges, liftgate hinges, steel
fuel door hinge, unless the
components are plastic. Applying

Black plate (10,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
11-10 Service and Maintenance
Lamps
Properly working headlamps,
taillamps, and brake lamps are
important to see and be seen on
the road.
.Signs that the headlamps need
attention include dimming, failure
to light, cracking, or damage.
The brake lamps need to be
checked periodically to ensure
that they light when braking.
.With a multi-point inspection,
your dealer can check the lamps
and note any concerns.
Shocks and Struts
Shocks and struts help aid in control
for a smoother ride.
.Signs of wear may include
steering wheel vibration, bounce/
sway while braking, longer
stopping distance, or uneven
tire wear.
.As part of the multi-point
inspection, trained dealer
technicians can visually inspect
the shocks and struts for signs
of leaking, blown seals,
or damage, and can advise
when service is needed.
Tires
Tires need to be properly inflated,
rotated, and balanced. Maintaining
the tires can save money and fuel,
and can reduce the risk of tire
failure.
.Signs that the tires need to be
replaced include three or more
visible treadwear indicators; cord
or fabric showing through the
rubber; cracks or cuts in the
tread or sidewall; or a bulge or
split in the tire.
.Trained dealer technicians can
inspect and recommend the right
tires. Your dealer can also
provide tire/wheel balancing
services to ensure smooth
vehicle operation at all speeds.
Your dealer sells and services
name brand tires.
Vehicle Care
To help keep the vehicle looking like
new, vehicle care products are
available from your dealer. For
information on how to clean and
protect the vehicle’s interior and
exterior, see Interior Care on
page 10-89 andExterior Care on
page 10-85.

Black plate (11,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Service and Maintenance 11-11
Wheel Alignment
Wheel alignment is critical for
ensuring that the tires deliver
optimal wear and performance.
.Signs that the alignment may
need to be adjusted include
pulling, improper vehicle
handling, or unusual tire wear.
.Your dealer has the required
equipment to ensure proper
wheel alignment.Windshield
For safety, appearance, and the
best viewing, keep the windshield
clean and clear.
.Signs of damage include
scratches, cracks, and chips.
.Trained dealer technicians can
inspect the windshield and
recommend proper replacement
if needed.
Wiper Blades
Wiper blades need to be cleaned
and kept in good condition to
provide a clear view.
.Signs of wear include streaking,
skipping across the windshield,
and worn or split rubber.
.Trained dealer technicians can
check the wiper blades and
replace them when needed.

Black plate (3,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Technical Data 12-3
ApplicationCapacities
Metric English
2.4L L4 Engine (LUK) 62.8 L 16.6 gal
Wheel Nut Torque 150 Y110 lb ft
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 Engine X0.75–0.90 mm (0.030–0.035 in)
2.4L L4 Engine (LEA) K0.75–0.90 mm (0.030–0.035 in)
2.4L L4 Engine (LUK) R0.75–0.90 mm (0.030–0.035 in)

Black plate (5,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Customer Information 13-5
Buick Owner Centre (Canada)
buickowner.ca
Visit the Buick Owner Centre:
.Chat live with online help
representatives.
.Use the Vehicle Tools section.
.Access third party enthusiast
sites and social media networks.
.Locate owner resources such as
lease-end, financing, and
warranty information.
.Retrieve your favorite articles,
quizzes, tips and multimedia
galleries organized into the
Featured Articles and Auto Care
Sections.
.Download the owner manual for
your vehicle, quickly and easily.
.Find the Buick-recommended
maintenance services for your
vehicle.
GM Mobility
Reimbursement Program
This program is available to
qualified applicants for cost
reimbursement of eligible
aftermarket adaptive equipment
required for the vehicle, such as
hand controls or a wheelchair/
scooter lift for the vehicle.
For more information on the limited
offer, visit www.gmmobility.com or
call the GM Mobility Assistance
Center at 1-800-323-9935. Text
Telephone (TTY) users, call
1-800-833-9935.General Motors of Canada also has
a Mobility Program. Visit www.gm.ca
or call 1-800-GM-DRIVE (463-7483)
for details. TTY users call
1-800-263-3830.
Roadside Assistance
Program
For U.S.-purchased vehicles, call
1-800-252-1112; (Text Telephone
(TTY): 1-888-889-2438).
For Canadian-purchased vehicles,
call 1-800-268-6800.
Service is available 24 hours a day,
365 days a year.
Calling for Assistance
When calling Roadside Assistance,
have the following information
ready:
.Your name, home address, and
home telephone number.
.Telephone number of your
location.
.Location of the vehicle.

Black plate (1,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
INDEX i-1
A
Accessories andModifications . . . . . . . . . . . . . . . . . 10-3
Accessory Power . . . . . . . . . . . . . . 9-23
Active Emergency Braking System . . . . . . . . 1-17, 9-54
Adaptive Cruise Control . . . . . . . 9-40
Add-On Electrical
Equipment . . . . . . . . . . . . . . . . . . . 9-65
Additional Information OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-6
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . 11-8
Adjustments Lumbar, Front Seats . . . . . . . . . . . 3-4
Air Cleaner/Filter, Engine . . . . . 10-16
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . 8-6
Air Intake . . . . . . . . . . . . . . . . . . . . . . . 8-6
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 8-6
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . 3-29
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . 3-21 Airbag System (cont'd)
Passenger Sensing
System . . . . . . . . . . . . . . . . . . . . . . 3-23
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-21
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 . . . . . . . . . . . . . . . . . . . . . . 3-28
Passenger Status Indicator . . . 5-19
Readiness Light . . . . . . . . . . . . . . 5-18
Servicing Airbag-Equipped
Vehicles . . . . . . . . . . . . . . . . . . . . . 3-27
System Check . . . . . . . . . . . . . . . . 3-17
Alarm Vehicle Security . . . . . . . . . . . . . . 2-15
Alert Lane Change . . . . . . . . . . . . . . . . . 9-56
Side Blind Zone (SBZA) . . . . . . 9-55
All-Season Tires . . . . . . . . . . . . . . 10-41
All-Wheel Drive . . . . . . . . . 9-31, 10-27 Antilock Brake
System (ABS) . . . . . . . . . . . . . . . . 9-31
Warning Light . . . . . . . . . . . . . . . . . 5-24
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . 10-85
Interior . . . . . . . . . . . . . . . . . . . . . . 10-89
Ashtrays . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Assistance Program,
Roadside . . . . . . . . . . . . . . . . . . . . . 13-5
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . 9-51
Assistance Systems for Parking and Backing . . . . . . . . . 9-49
Automatic Door Locks . . . . . . . . . . . . . . . . . . . 2-12
Headlamp System . . . . . . . . . . . . . 6-2
Transmission . . . . . . . . . . . . . . . . . 9-26
Transmission Fluid . . . . . . . . . 10-15
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 9-28
Shift Lock ControlFunction Check . . . . . . . . . . . 10-28

Black plate (3,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
INDEX i-3
CompartmentsStorage . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Compass . . . . . . . . . . . . . . . . . . . . . . . 5-4 Messages . . . . . . . . . . . . . . . . . . . . 5-39
Compressor Kit, Tire Sealant . . . . . . . . . . . . . . . . . . . . . . 10-64
Connections
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-4
Control Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 9-35
Control of a Vehicle . . . . . . . . . . . . . 9-3
Convenience Net . . . . . . . . . . . . . . . 4-3
Convex Mirrors . . . . . . . . . . . . . . . . 2-18
Coolant Engine . . . . . . . . . . . . . . . . . . . . . . 10-19
Engine Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 5-17
Engine Temperature Warning Light . . . . . . . . . . . . . . . 5-27
Cooling System . . . . . . . . . . . . . . . 10-18
Engine Messages . . . . . . . . . . . . 5-41
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . 13-7 Cruise Control . . . . . . . . . . . . . . . . . 9-38
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30
Messages . . . . . . . . . . . . . . . . . . . . 5-39
Cruise Control, Active . . . . . . . . . 9-40
Cupholders . . . . . . . . . . . . . . . . . . . . . 4-1
Customer Assistance . . . . . . . . . . 13-4 Offices . . . . . . . . . . . . . . . . . . . . . . . . 13-3
Text Telephone (TTY)
Users . . . . . . . . . . . . . . . . . . . . . . . 13-4
Customer Information Service Publications
Ordering Information . . . . . . .13-11
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . 13-1
D
Damage Repair, Collision . . . . . . 13-8
Danger, Warnings, andCautions . . . . . . . . . . . . . . . . . . . . . . . . iv
Data Recorders, Event . . . . . . . 13-14
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 6-2
Defensive Driving . . . . . . . . . . . . . . . 9-3
Delayed Locking . . . . . . . . . . . . . . . 2-11
Distracted Driving . . . . . . . . . . . . . . . 9-2
Dome Lamps . . . . . . . . . . . . . . . . . . . 6-5 Door
Ajar Light . . . . . . . . . . . . . . . . . . . . . 5-30
Ajar Messages . . . . . . . . . . . . . . . 5-40
Delayed Locking . . . . . . . . . . . . . . 2-11
Locks . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Power Locks . . . . . . . . . . . . . . . . . . 2-11
Drive Belt Routing, Engine . . . . . 12-4
Drive Systems
All-Wheel Drive . . . . . . . 9-31, 10-27
Driver Assistance Systems . . . . 9-48
Driver Information Center (DIC) . . . . . . . . . . . 5-32, 5-35
Driving Assistance Systems . . . . . . . . . . 9-51
Defensive . . . . . . . . . . . . . . . . . . . . . . 9-3
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
For Better Fuel Economy . . . . . 1-22
Hill and Mountain Roads . . . . . . . 9-7
If the Vehicle is Stuck . . . . . . . . . . 9-9
Loss of Control . . . . . . . . . . . . . . . . 9-5
Off-Road Recovery . . . . . . . . . . . . 9-5
Track Events andCompetitive . . . . . . . . . . . . . . . . . . 9-6
Vehicle Load Limits . . . . . . . . . . . 9-10
Wet Roads . . . . . . . . . . . . . . . . . . . . 9-6
Winter . . . . . . . . . . . . . . . . . . . . . . . . . 9-8

Black plate (5,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
INDEX i-5
Front SeatsAdjustment . . . . . . . . . . . . . . . . . . . . 3-3
Heated . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-59 Additives . . . . . . . . . . . . . . . . . . . . . 9-61
Economy Driving . . . . . . . . . . . . . 1-22
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 9-64
Filling the Tank . . . . . . . . . . . . . . . 9-62
Foreign Countries . . . . . . . . . . . . 9-61
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 5-16
Low Fuel Warning Light . . . . . . . 5-29
Requirements, California . . . . . 9-61
System Messages . . . . . . . . . . . . 5-42
Fuses Engine Compartment
Fuse Block . . . . . . . . . . . . . . . . 10-35
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-35
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . 10-39G
Garage Door Opener . . . . . . . . . . 5-53
Programming . . . . . . . . . . . . . . . . . 5-53
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . 5-17
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
Odometer . . . . . . . . . . . . . . . . . . . . . 5-15
Speedometer . . . . . . . . . . . . . . . . . 5-15
Tachometer . . . . . . . . . . . . . . . . . . . 5-15
Trip Odometer . . . . . . . . . . . . . . . . 5-15
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . . 5-7
General Information Service and Maintenance . . . . . 11-1
Towing . . . . . . . . . . . . . . . . . . . . . . . . 9-64
Vehicle Care . . . . . . . . . . . . . . . . . . 10-2
Glove Box . . . . . . . . . . . . . . . . . . . . . . 4-1
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . 13-5
H
Halogen Bulbs . . . . . . . . . . . . . . . . 10-31
Hazard Warning Flashers . . . . . . . 6-3
Head Restraints . . . . . . . . . . . . . . . . 3-2
Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . 10-30
Automatic . . . . . . . . . . . . . . . . . . . . . . 6-2
Bulb Replacement . . . . . . . . . . 10-31
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . . 6-2
Flash-to-Pass . . . . . . . . . . . . . . . . . . 6-2
High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . 10-31
High-Beam On Light . . . . . . . . . . 5-29
High/Low Beam Changer . . . . . . 6-2
Lamps On Reminder . . . . . . . . . 5-30
Heated Steering Wheel . . . . . . . . . . . . . . . . 5-2
Heated Front Seats . . . . . . . . . . . . . 3-8
Heated Mirrors . . . . . . . . . . . . . . . . . 2-19
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 9-21
High Voltage Devices and Wiring . . . . . . . . . . . . . . . . . . . . . . . 10-34
High-Beam On Light . . . . . . . . . . . 5-29
High-Speed Operation . . . . . . . . 10-50