2014 BUICK REGAL wiring

Black plate (29,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6081497) - 2014 - CRC 2nd Edition - 11/22/13
Seats and Restraints 3-29
{Warning
Stowing of articles under the
passenger seat or between the
passenger seat cushion and
seatback may interfere with the
proper operation of the passenger
sensing system.
Servicing the
Airbag-Equipped Vehicle
Airbags affect how the vehicle
should be serviced. There are parts
of the airbag system in several
places around the vehicle. Your
dealer and the service manual have
information about servicing the
vehicle and the airbag system. To
purchase a service manual, see
Service Publications Ordering
Information on page 13-11.
{Warning
For up to 10 seconds after the
vehicle is turned off and the
battery is disconnected, an airbag
can still inflate during improper
service. You can be injured if you
are close to an airbag when it
inflates. Avoid yellow connectors.
They are probably part of the
airbag system. Be sure to follow
proper service procedures, and
make sure the person performing
work for you is qualified to do so.
Adding Equipment to the
Airbag-Equipped Vehicle
Adding accessories that change the
vehicle's frame, bumper system,
height, front end, or side sheet
metal, may keep the airbag system
from working properly. The
operation of the airbag system can
also be affected by changing any
parts of the front seats, safety belts,
the airbag sensing and diagnosticmodule, steering wheel, instrument
panel, any of the airbag modules,
ceiling or pillar garnish trim, front
sensors, side impact sensors,
or airbag wiring.
Your dealer and the service manual
have information about the location
of the airbag sensors, sensing and
diagnostic module, and airbag
wiring.
In addition, the vehicle has a
passenger sensing system for the
front outboard passenger position,
which includes sensors that are part
of the passenger seat. The
passenger sensing system may not
operate properly if the original seat
trim is replaced with non-GM
covers, upholstery, or trim; or with
GM covers, upholstery, or trim
designed for a different vehicle. Any
object, such as an aftermarket seat
heater or a comfort-enhancing pad
or device, installed under or on top
of the seat fabric, could also
interfere with the operation of the
passenger sensing system. This
could either prevent proper

Black plate (20,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6081497) - 2014 - CRC 2nd Edition - 11/22/13
5-20 Instruments and Controls
the passenger remains or becomes
unbuckled while the vehicle is
moving.
If the passenger safety belt is
buckled, neither the chime nor the
light comes on.
The front passenger safety belt
warning light and chime may turn on
if an object is put on the seat such
as a briefcase, handbag, grocery
bag, laptop, or other electronic
device. To turn off the warning light
and/or chime, remove the object
from the seat or buckle the
safety belt.
Airbag Readiness Light
This light shows if there is an
electrical problem with the airbag
system. The system check includes
the airbag sensor(s), passenger
sensing system, the pretensioners,
the airbag modules, the wiring, and
the crash sensing and diagnostic
module. For more information on the
airbag system, seeAirbag System
on page 3-19.
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. See Passenger
Sensing System on page 3-24 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.

Black plate (1,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6081497) - 2014 - CRC 2nd Edition - 11/22/13
Vehicle Care 10-1
Vehicle Care
General Information
General Information . . . . . . . . . . 10-2
California Proposition65 Warning . . . . . . . . . . . . . . . . . 10-2
California Perchlorate Materials Requirements . . . . 10-3
Accessories and Modifications . . . . . . . . . . . . . . . 10-3
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 10-3
Hood . . . . . . . . . . . . . . . . . . . . . . . . 10-4
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . 10-6
Engine Oil . . . . . . . . . . . . . . . . . . 10-11
Engine Oil Life System . . . . . 10-13
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . 10-15
Manual Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . 10-15
Hydraulic Clutch . . . . . . . . . . . . 10-15
Engine Air Cleaner/Filter . . . . 10-16
Cooling System . . . . . . . . . . . . 10-17
Engine Coolant . . . . . . . . . . . . . 10-19
Engine Overheating . . . . . . . . 10-22 Washer Fluid . . . . . . . . . . . . . . . 10-23
Brakes . . . . . . . . . . . . . . . . . . . . . 10-24
Brake Fluid . . . . . . . . . . . . . . . . . 10-25
Battery . . . . . . . . . . . . . . . . . . . . . 10-27
All-Wheel Drive . . . . . . . . . . . . . 10-28
Starter Switch Check . . . . . . . 10-28
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . 10-28
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . 10-29
Park Brake and P (Park) Mechanism Check . . . . . . . . 10-29
Wiper Blade Replacement . . . . . . . . . . . . . . 10-29
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . 10-30
Bulb Replacement
Bulb Replacement . . . . . . . . . . 10-31
Halogen Bulbs . . . . . . . . . . . . . . 10-31
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . 10-31
Headlamps, Front Turn Signal and Parking
Lamps . . . . . . . . . . . . . . . . . . . . 10-31
Fog Lamps . . . . . . . . . . . . . . . . . 10-32 Taillamps, Turn Signal,
Stoplamps, and Back-Up
Lamps . . . . . . . . . . . . . . . . . . . . 10-33
License Plate Lamp . . . . . . . . 10-33
Replacement Bulbs . . . . . . . . . 10-34
Electrical System
High Voltage Devices and Wiring . . . . . . . . . . . . . . . . . . . . . 10-34
Electrical System Overload . . . . . . . . . . . . . . . . . . 10-35
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-35
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-36
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-39
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-41
All-Season Tires . . . . . . . . . . . . 10-42
Winter Tires . . . . . . . . . . . . . . . . 10-42
Summer Tires . . . . . . . . . . . . . . 10-43
Tire Sidewall Labeling . . . . . . 10-43
Tire Designations . . . . . . . . . . . 10-45
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . 10-46
Tire Pressure . . . . . . . . . . . . . . . 10-48

Black plate (33,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6081497) - 2014 - CRC 2nd Edition - 11/22/13
Vehicle Care 10-33
Taillamps, Turn Signal,
Stoplamps, and Back-Up
Lamps
1. Taillamp
2. Taillamp/Sidemarker Lamp
3. Stop/Turn Signal Lamp
4. Back-up Lamp
To replace any one of these bulbs:
1. Open the trunk. SeeTrunk
Release on page 1-7.
2. Remove the trunk trim panel push pin. 3. Pull the trunk trim panel back to
gain access to the taillamp
assembly.
4. Remove the two nuts that secure the taillamp assembly.
5. Remove the taillamp assembly and disconnect the wiring
harness connector.
6. Turn the bulb socket counterclockwise to remove it.
7. Pull the bulb from the socket.
8. Install a new bulb.
9. Turn the bulb socket clockwise to install it.
10. Reverse Steps 2–4 to reinstall the taillamp assembly.
License Plate Lamp
Lamp Assembly
Bulb Assembly

Black plate (34,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6081497) - 2014 - CRC 2nd Edition - 11/22/13
10-34 Vehicle Care
1. Bulb Socket
2. Bulb
3. Lamp Assembly
To replace one of these bulbs:
1. Push the release tab toward thelamp assembly.
2. Pull the lamp assembly down to remove.
3. Turn the bulb socket (1) counterclockwise to remove it
from the lamp assembly (3).
4. Pull the bulb (2) straight out of the bulb socket (1).
5. Push the replacement bulb straight into the bulb socket and
turn the bulb socket clockwise to
install it into the lamp assembly.
6. Push the lamp assembly back into position until the release tab
locks into place.Replacement Bulbs
Exterior Lamp Bulb
Number
Back-up Lamp 3157 K
Fog Lamp H10
Front Turn Signal
Lamp (Base) WY21W
Front Turn Signal
Lamp (Uplevel) PSY24W
Front Sidemarker
Lamp (Base) 194NA
Low-Beam
Headlamp (Base) HIR2
License Plate Lamp 194
Daytime Running
Lamp (DRL) (Base) W21/
5W ULL
Stoplamp/Turn
Signal Lamp 3157 K
Taillamp/
Sidemarker Lamp 3157 K
For replacement bulbs not listed
here, contact your dealer.
Electrical System
High Voltage Devices and
Wiring
{Warning
Exposure to high voltage can
cause shock, burns, and even
death. The high voltage
components in the vehicle can
only be serviced by technicians
with special training.
High voltage components are
identified by labels. Do not
remove, open, take apart,
or modify these components.
High voltage cable or wiring has
orange covering. Do not probe,
tamper with, cut, or modify high
voltage cable or wiring.

Black plate (35,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6081497) - 2014 - CRC 2nd Edition - 11/22/13
Vehicle Care 10-35
Electrical System
Overload
The vehicle has fuses and circuit
breakers to protect against an
electrical system overload.
When the current electrical load is
too heavy, the circuit breaker opens
and closes, protecting the circuit
until the current load returns to
normal or the problem is fixed. This
greatly reduces the chance of circuit
overload and fire caused by
electrical problems.
Fuses and circuit breakers protect
power devices in the vehicle.
Replace a bad fuse with a new one
of the identical size and rating.
If there is a problem on the road and
a fuse needs to be replaced, the
same amperage fuse can be
borrowed. Choose some feature of
the vehicle that is not needed to use
and replace it as soon as possible.
Headlamp Wiring
An electrical overload may cause
the lamps to go on and off, or in
some cases to remain off. Have the
headlamp wiring checked right away
if the lamps go on and off or
remain off.
Windshield Wipers
If the wiper motor overheats due to
heavy snow or ice, the windshield
wipers will stop until the motor cools
and will then restart.
Although the circuit is protected
from electrical overload, overload
due to heavy snow or ice may
cause wiper linkage damage.
Always clear ice and heavy snow
from the windshield before using the
windshield wipers.
If the overload is caused by an
electrical problem and not snow or
ice, be sure to get it fixed.
Fuses and Circuit
Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of fuses and circuit
breakers. This greatly reduces the
chance of damage caused by
electrical problems.
To check a fuse, look at the
silver-colored band inside the fuse.
If the band is broken or melted,
replace the fuse. Be sure to replace
a bad fuse with a new one of the
identical size and rating.
Fuses of the same amperage can
be temporarily borrowed from
another fuse location, if a fuse goes
out. Replace the fuse as soon as
possible.
To identify and check fuses, circuit
breakers, and relays, seeEngine
Compartment Fuse Block on
page 10-36 andInstrument Panel
Fuse Block on page 10-39.

Black plate (5,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6081497) - 2014 - CRC 2nd Edition - 11/27/13
INDEX i-5
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-60Additives . . . . . . . . . . . . . . . . . . . . . 9-62
Economy Driving . . . . . . . . . . . . . 1-23
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 9-64
Filling the Tank . . . . . . . . . . . . . . . 9-63
Foreign Countries . . . . . . . . . . . . 9-61
Gasoline Specifications . . . . . . . 9-61
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 5-17
Low Fuel Warning Light . . . . . . . 5-29
Recommended . . . . . . . . . . . . . . . 9-60
Requirements, California . . . . . 9-61
System Messages . . . . . . . . . . . . 5-42
Fuses Engine CompartmentFuse Block . . . . . . . . . . . . . . . . 10-36
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-35
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . 10-39G
Garage Door Opener . . . . . . . . . . 5-54Programming . . . . . . . . . . . . . . . . . 5-54
Gasoline Specifications . . . . . . . . . . . . . . . . . 9-61
Gauges Engine Coolant
Temperature . . . . . . . . . . . . . . . . 5-18
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
Odometer . . . . . . . . . . . . . . . . . . . . . 5-16
Speedometer . . . . . . . . . . . . . . . . . 5-16
Tachometer . . . . . . . . . . . . . . . . . . . 5-16
Trip Odometer . . . . . . . . . . . . . . . . 5-16
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . . 5-7
General Information
Service and Maintenance . . . . . 11-1
Towing . . . . . . . . . . . . . . . . . . . . . . . . 9-65
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
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . 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 . . . . . . . . . . 5-30
High/Low Beam Changer . . . . . . 6-1
Lamps On Reminder . . . . . . . . . 5-30
Heated Steering Wheel . . . . . . . . . . . . . . . . 5-3
Heated Front Seats . . . . . . . . . . . . . 3-8
Heated Mirrors . . . . . . . . . . . . . . . . . 2-20
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 9-23
High Voltage Devices and Wiring . . . . . . . . . . . . . . . . . . . . . . . 10-34
High-Beam On Light . . . . . . . . . . . 5-30
High-Speed Operation . . . . . . . . 10-50

Black plate (12,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
6081497) - 2014 - CRC 2nd Edition - 11/27/13
i-12 INDEX
TransmissionAutomatic . . . . . . . . . . . . . . . . . . . . . 9-27
Fluid, Automatic . . . . . . . . . . . . 10-15
Fluid, Manual . . . . . . . . . . . . . . . 10-15
Messages . . . . . . . . . . . . . . . . . . . . 5-47
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . . 13-7
Trip Odometer . . . . . . . . . . . . . . . . . 5-16
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Turn Signal Bulb Replacement . . . . . . . . . . 10-33
U
Uniform Tire QualityGrading . . . . . . . . . . . . . . . . . . . . . 10-59
Universal Remote System . . . . . 5-54
Operation . . . . . . . . . . . . . . . . . . . . . 5-56
Programming . . . . . . . . . . . . . . . . . 5-54
Up-Shift Light . . . . . . . . . . . . . . . . . . 5-26
Using This Manual . . . . . . . . . . . . . . . . iii
V
Vehicle Alarm System . . . . . . . . . . . . . . . . 2-16
Canadian Owners . . . . . . . . . . . . . . . iii
Control . . . . . . . . . . . . . . . . . . . . . . . . 9-3
IdentificationNumber (VIN) . . . . . . . . . . . . . . . 12-1
Load Limits . . . . . . . . . . . . . . . . . . . 9-10
Messages . . . . . . . . . . . . . . . . . . . . 5-39
Personalization . . . . . . . . . . . . . . . 5-48
Remote Start . . . . . . . . . . . . . . . . . . 2-9
Security . . . . . . . . . . . . . . . . . . . . . . 2-16
Towing . . . . . . . . . . . . . . . . . . . . . . 10-82
Vehicle Ahead Indicator . . . . . . . 5-26
Vehicle Care Storing the Tire Sealant
and Compressor Kit . . . . . . . 10-71
Tire Pressure . . . . . . . . . . . . . . . 10-48
Vehicle Diagnostics OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-5
Ventilation, Air . . . . . . . . . . . . . . . . . . 8-6
Visors . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Voltage Devices and Wiring . . . . . . . . . . . . . . . . . . . . . . . 10-34
W
WarningBrake System Light . . . . . . . . . . . 5-24
Lane Departure (LDW) . . . . . . . 9-58
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . 5-7
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . iv
Cautions and Danger . . . . . . . . . . . .iv
Hazard Flashers . . . . . . . . . . . . . . . 6-3
Washer Fluid . . . . . . . . . . . . . . . . . 10-23 Messages . . . . . . . . . . . . . . . . . . . . 5-47
Wheels Alignment and TireBalance . . . . . . . . . . . . . . . . . . . 10-60
Different Size . . . . . . . . . . . . . . . 10-58
Replacement . . . . . . . . . . . . . . . 10-61
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-56
Where to Put the Restraint . . . . 3-37
Windows . . . . . . . . . . . . . . . . . . . . . . 2-20 Messages . . . . . . . . . . . . . . . . . . . . 5-47
Power . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Windshield Wiper/Washer . . . . . . . . . . . . . . . . . 5-3
Winter
Driving . . . . . . . . . . . . . . . . . . . . . . . . . 9-8