BUICK REGAL 2013 Owner's Manual

Black plate (33,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
Vehicle Care 10-33
License Plate Lamp
Lamp Assembly
Bulb Assembly1. Bulb Socket
2. Bulb
3. Lamp Assembly
To replace one of these bulbs:
1. Push the release tab toward the
lamp 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 3457 NAK
Front Sidemarker
Lamp (Base) 194NA
High‐Beam
Headlamp (Base) H7
License Plate Lamp 194
Low‐Beam
Headlamp/Daytime
Running
Lamp (DRL) H11
Stoplamp/Turn
Signal Lamp 3157 K
Taillamp/
Sidemarker Lamp 3157 K
For replacement bulbs not listed
here, contact your dealer.

Black plate (34,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
10-34 Vehicle Care
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.
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.

Black plate (35,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
Vehicle Care 10-35
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 10‑35 andInstrument Panel
Fuse Block on page 10‑39.
Engine Compartment
Fuse Block
To remove the fuse block cover,
press the three retaining clips on the
cover and lift it straight up.
Notice: Spilling liquid on any
electrical component on the
vehicle may damage it. Always
keep the covers on any electrical
component.

Black plate (36,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
10-36 Vehicle Care
Engine Compartment Fuse Block
The vehicle may not be equipped
with all of the fuses, relays, and
features shown. Fuse
Number Usage
1 Transmission Control Module Fuse
Number Usage
2 Engine Control Module
3 SAI Solenoid (2.4L Engine RPO LEA)
4 Not Used Fuse
Number Usage
5 Ignition, Transmission
Control Module,
Engine Control
Module
6 Windshield Wiper
7 BPIM (eAssist Only)
8 Not Used
9 Fuel Injection, Ignition System
10 Engine Control Module
11 Oxygen Sensor
12 Starter
13 Fuel System Control Module
14 Trunk Release
15 MGU Coolant Pump (eAssist Only)

Black plate (37,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
Vehicle Care 10-37
Fuse
Number Usage
16 Heated Steering Wheel
17 Airbag
18 BPIM (eAssist Only)
19 Not Used
20 Not Used
21 Rear Power Windows
22 Antilock Brake System Valve
23 Variable Effort Steering
24 Front Power Windows
25 Power Outlets
26 Antilock Brake System Pump
27 Electric Parking Brake Fuse
Number Usage
28 Heated Rear Window
29 Left-Hand Seat Lumbar
30 Right-Hand Seat Lumbar
31 A/C Clutch
32 Body Control Module 6
33 Heated Front Seats
34 Sunroof
35 Infotainment System
36 Not Used
37 Right-Hand High-Beam
Headlamp
38 Left-Hand High-Beam
Headlamp Fuse
Number Usage
39 Not Used
40 Not Used
41 Vacuum Pump
42 Radiator Fan
43 Passive Entry/ Passive Start
44 Transmission Auxiliary Pump
(eAssist Only)
45 Radiator Fan
46 Terminal 87, Main Relay
47 Oxygen Sensor
48 Fog Lamps
49 Right-Hand Low Beam, High Intensity
Discharge
Headlamp

Black plate (38,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
10-38 Vehicle Care
Fuse
Number Usage
50 Left-Hand Low Beam, High Intensity
Discharge
Headlamp
51 Horn
52 Motor Indicator Lamp
53 Inside Rearview Mirror
54 Not Used
55 Power Windows/ Mirrors
56 Windshield Washer
57 Not Used
58 Not Used
59 Secondary Air Induction (eAssist
and 2.4L Engine
RPO LEA) Fuse
Number Usage
60 Heated Mirrors
61 Not Used
62 Canister Vent Solenoid
63 Not Used
64 Heater, Ventilation, and Air Conditioning
Pump (eAssist Only)
65 Not Used
66 SAI Check Valve (eAssist Only)
67 Fuel System Control Module
68 Not Used
69 Battery Sensor
70 Not Used
71 Not Used Relay
Number Usage
1 Air Conditioning Control
2 Starter
3 Cooling Fan
4 Front Wiper (Step 2)
5 Front Wiper (Step 1, Interval)
6 SAI Valve/Heater (eAssist and 2.4L
Engine RPO LEA),
Ventilation, and Air
Conditioning Pump
(eAssist Only)
7 Main Relay
8 Not Used
9 Cooling Fan
10 Cooling Fan

Black plate (39,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
Vehicle Care 10-39
Relay
Number Usage
11 Transmission Auxiliary Pump
(eAssist Only)
12 Cooling Fan (2.0L Engine RPO LHU)
13 Cooling Fan
14 High Intensity Discharge Lamps
15 Ignition
16 Secondary AIR Pump (eAssist and
2.4L Engine
RPO LEA)
17 Window/Mirror DefogInstrument Panel Fuse
Block
The instrument panel fuse block is
located in the instrument panel, on
the driver side of the vehicle.
To access the fuses, open the
storage compartment. Press in on
the sides of the compartment to
release it from the instrument panel.
Pull the door toward you to release
it from the hinge.
Instrument Panel Fuse Block
Number Usage
1 Suspension Control Module/Universal
Garage Door
Opener/ESC
2 Body Control Module 1
3 Body Control Module 5
4 Radio

Black plate (40,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
10-40 Vehicle Care
Number Usage5 Radio Displays, Park Assist,
Infotainment,
Module Tunnel
Control
6 Instrument Panel Power Outlet
7 Console Power Outlet
8 Body Control Module 3
9 Body Control Module 4
10 Body Control Module 8
11 Front Heater Ventilation Air
Conditioning/Blower Number Usage
12 Right-Hand Power Front Seat
13 Left-Hand Power Front Seat
14 Diagnostic Link Connector
15 Airbag
16 Spare
17 Heating Ventilation Air Conditioning
Controller
18 Service Fuse, Logistic Relay
19 Spare
20 Automatic Occupant Sensing Number Usage
21 Instrument Cluster
22 Discrete Logic Ignition
Switch/PEPS
23 Body Control Module 6
24 Body Control Module 2
25 OnStar
26 Spare

Black plate (41,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
Vehicle Care 10-41
Wheels and Tires
Tires
Every new GM vehicle has
high-quality tires made by a
leading tire manufacturer. See
the warranty manual for
information regarding the tire
warranty and where to get
service. For additional
information refer to the tire
manufacturer.
{WARNING
.Poorly maintained and
improperly used tires are
dangerous.
.Overloading the tires can
cause overheating as a
result of too much flexing.
There could be a blowout
(Continued)
WARNING (Continued)and a serious crash. See
Vehicle Load Limits on
page 9‑10.
.Underinflated tires pose
the same danger as
overloaded tires. The
resulting crash could
cause serious injury.
Check all tires frequently
to maintain the
recommended pressure.
Tire pressure should be
checked when the tires
are cold.
.Overinflated tires are more
likely to be cut, punctured,
or broken by a sudden
impact —such as when
hitting a pothole. Keep
tires at the recommended
pressure.
(Continued)
WARNING (Continued)
.Worn or old tires can
cause a crash. If the tread
is badly worn,
replace them.
.Replace any tires that
have been damaged by
impacts with potholes,
curbs, etc.
.Improperly repaired tires
can cause a crash. Only
the dealer or an
authorized tire service
center should repair,
replace, dismount, and
mount the tires.
.Do not spin the tires in
excess of 56 km/h
(35 mph) on slippery
surfaces such as snow,
mud, ice, etc. Excessive
spinning may cause the
tires to explode.

Black plate (42,1)Buick Regal Owner Manual - 2013 - crc - 11/5/12
10-42 Vehicle Care
SeeTire Pressure for
High-Speed Operation on
page 10‑49 for inflation pressure
adjustment for high-speed
driving.
All-Season Tires
This vehicle may come with
all-season tires. These tires are
designed to provide good overall
performance on most road surfaces
and weather conditions. Original
equipment tires designed to GM's
specific tire performance criteria
have a TPC specification code
molded onto the sidewall. Original
equipment all-season tires can be
identified by the last two characters
of this TPC code, which will
be “MS.”
Consider installing winter tires on
the vehicle if frequent driving on
snow or ice-covered roads is
expected. All-season tires provide
adequate performance for most
winter driving conditions, but they
may not offer the same level of traction or performance as winter
tires on snow or ice-covered roads.
See
Winter Tires on page 10‑42.
Winter Tires
This vehicle was not, originally,
equipped with winter tires. Winter
tires are designed for increased
traction on snow and ice-covered
roads. Consider installing winter
tires on the vehicle if frequent
driving on snow or ice-covered
roads is expected. See your dealer
for details regarding winter tire
availability and proper tire selection.
Also, see Buying New Tires on
page 10‑57.
With winter tires, there may be
decreased dry road traction,
increased road noise, and shorter
tread life. After changing to winter
tires, be alert for changes in vehicle
handling and braking.
If using winter tires:
.Use tires of the same brand and
tread type on all four wheel
positions.
.Use only radial ply tires of the
same size, load range, and
speed rating as the original
equipment tires.
Winter tires with the same speed
rating as the original equipment tires
may not be available for H, V, W, Y,
and ZR speed rated tires. If winter
tires with a lower speed rating are
chosen, never exceed the tire's
maximum speed capability.
Summer Tires
This vehicle may come with high
performance summer tires. These
tires have a special tread and
compound that are optimized for
maximum dry and wet road
performance. This special tread and
compound will decrease
performance in cold climates, and
on ice and snow. We recommend
installing winter tires on the vehicle
if frequent driving in cold
temperatures or on snow or ice
covered roads is expected. See
Winter Tires on page 10‑42.