lock BUICK REGAL 2012 Owners Manual

Black plate (17,1)Buick Regal Owner Manual - 2012
Vehicle Care 10-17
3. Disconnect the electricalconnector (C).
4. Remove the screws (A) on top of the engine air cleaner/filter
housing.
5. Lift the filter cover housing away from the engine.
6. Pull out the filter.
7. Inspect or replace the engine air cleaner/filter.
8. Reverse Steps 2 through 4 to reinstall the filter cover housing.
2.4L L4 Engine with eAssist
1. Open the hood. See Hood on
page 10‑5.
2. Remove the five screws on top of the engine air cleaner/filter
housing.
3. Lift the filter cover housing away from the engine air cleaner/filter
housing.
4. Pull out the filter.
5. Inspect or replace the engine air cleaner/filter. 6. Lower the filter cover housing
toward the engine.
7. Install the five screws on the top of the housing to lock the cover
in place.
{WARNING
Operating the engine with the air
cleaner/filter off can cause you
or others to be burned. The air
cleaner not only cleans the air; it
helps to stop flames if the engine
backfires. Use caution when
working on the engine and do not
drive with the air cleaner/filter off.
Notice: If the air cleaner/filter is
off, dirt can easily get into the
engine, which could damage it.
Always have the air cleaner/filter
in place when you are driving.

Black plate (21,1)Buick Regal Owner Manual - 2012
Vehicle Care 10-21
{WARNING
Steam and scalding liquids from a
hot cooling system can blow out
and burn you badly. They are
under pressure, and if you turn
the coolant surge tank pressure
cap—even a little —they can
come out at high speed. Never
turn the cap when the cooling
system, including the coolant
surge tank pressure cap, is hot.
Wait for the cooling system and
coolant surge tank pressure cap
to cool if you ever have to turn
the pressure cap.
{WARNING
Adding only plain water or some
other liquid to the cooling system
can be dangerous. Plain water
and other liquids can boil before
the proper coolant mixture will.
(Continued)
WARNING (Continued)
The coolant warning system is set
for the proper coolant mixture.
With plain water or the wrong
mixture, the engine could get too
hot but you would not get the
overheat warning. The engine
could catch fire and you or
others could be burned. Use a
50/50 mixture of clean, drinkable
water and DEX-COOL coolant for
non-eAssist engine(s). Use a
50/50 mixture of deionized water
and DEX-COOL coolant for
eAssist engine(s).
Notice: In cold weather, water
can freeze and crack the engine,
radiator, heater core and other
parts. Use the recommended
coolant and the proper coolant
mixture.
{WARNING
You can be burned if you spill
coolant on hot engine parts.
Coolant contains ethylene glycol
and it will burn if the engine parts
are hot enough. Do not spill
coolant on a hot engine.
2.0L Engine Shown, 2.4L Engines
(with or without eAssist) Similar
1. Remove the coolant surge tank pressure cap when the cooling
system, including the coolant
surge tank pressure cap and
upper radiator hose, is no
longer hot.
Turn the pressure cap slowly
counterclockwise about
one-quarter of a turn. If you hear

Black plate (31,1)Buick Regal Owner Manual - 2012
Vehicle Care 10-31
Automatic Transmission
Shift Lock Control
Function Check
{WARNING
When you are doing this
inspection, the vehicle could
move suddenly. If the vehicle
moves, you or others could be
injured.
1. Before starting this check, be sure there is enough room
around the vehicle. It should be
parked on a level surface.
2. Firmly apply the parking brake. See Parking Brake on
page 9‑34.
Be ready to apply the regular
brake immediately if the vehicle
begins to move. 3. With the engine off, turn the
ignition on, but do not start the
engine. Without applying the
regular brake, try to move the
shift lever out of P (Park) with
normal effort. If the shift lever
moves out of P (Park), contact
your dealer for service.
Ignition Transmission
Lock Check
While parked, and with the parking
brake set, try to turn the ignition to
LOCK/OFF in each shift lever
position.
.For automatic transmission
vehicles, the ignition should turn
to LOCK/OFF only when the
shift lever is in P (Park). The
ignition key should come out
only in LOCK/OFF.
.For manual transmission
vehicles, the ignition key should
come out only in LOCK/OFF.
Contact your dealer if service is
required.
Park Brake and P (Park)
Mechanism Check
{WARNING
When you are doing this check,
the vehicle could begin to move.
You or others could be injured
and property could be damaged.
Make sure there is room in front
of the vehicle in case it begins to
roll. Be ready to apply the regular
brake at once should the vehicle
begin to move.
Park on a fairly steep hill, with the
vehicle facing downhill. Keeping
your foot on the regular brake, set
the parking brake.
.To check the parking brake's
holding ability: With the engine
running and the transmission in
N (Neutral), slowly remove foot
pressure from the regular brake
pedal. Do this until the vehicle is
held by the parking brake only.

Black plate (35,1)Buick Regal Owner Manual - 2012
Vehicle Care 10-35
Front Turn Signal/Parking/
Sidemarker Lamps (Base and
Uplevel)
To replace the front turn signal,
parking lamp, or sidemarker lamp:
1. For the driver side bulb, removethe windshield washer bottle
filler neck by firmly pulling it
straight up and out of the bottle.
2. Remove the bulb socket from the headlamp assembly by
turning it counterclockwise.
3. Remove the bulb from the socket.
4. Replace the bulb in the bulb socket.
5. Install the bulb socket in the headlamp assembly by turning it
clockwise. 6. For the driver side, reinstall the
windshield washer bottle filler
neck by firmly pushing it straight
into the bottle. Ensure that the
filler neck clip engages into the
underhood electrical center
retainer.
Fog Lamps
To replace the fog lamp bulb:
1. Locate the bulb assembly under
the front fascia.
2. Disconnect the electrical connector from the bulb
assembly.
3. Remove the bulb by turning it counterclockwise and pulling it
straight out of the assembly.
4. Install the new bulb by turning it clockwise into the assembly.
5. Reconnect the electrical connector to the bulb assembly.
Taillamps, Turn Signal,
Stoplamps, and Back-Up
Lamps
A. Taillamp/Sidemarker Lamp
B. Taillamp
C. Stop/Turn Signal Lamp
D. Back-up Lamp
To replace any one of these bulbs:
1. Open the trunk. See Trunk
Release on page 1‑6.
2. Remove the taillamp assembly access panel.

Black plate (36,1)Buick Regal Owner Manual - 2012
10-36 Vehicle Care
3. Remove the two nuts thatsecure the taillamp assembly.
4. Remove the taillamp assembly and detach the wiring harness
connector.
A. Back-up Lamp
B. Taillamp
C. Stop/Turn Signal Lamp
D. Taillamp/Sidemarker Lamp
5. Turn the bulb socket counterclockwise to remove it.
6. Pull the bulb from the socket. 7. Install a new bulb.
8. Turn the bulb socket clockwise
to install it.
9. Reverse Steps 2 through 4 to reinstall the taillamp assembly.
License Plate Lamp
To replace one of these bulbs:
Passenger Side Shown, Driver
Side Similar
1. Push the release tab (A) toward the lamp assembly. 2. Pull the lamp assembly down to
remove.
A. Bulb Socket
B. Bulb
C. Lamp Assembly
3. Turn the bulb socket (A) counterclockwise to remove it
from the lamp assembly (C).
4. Pull the bulb (B) straight out of the bulb socket.
5. Push the replacement bulb straight into the bulb socket and
turn the bulb socket clockwise to
install it into the lamp assembly.

Black plate (37,1)Buick Regal Owner Manual - 2012
Vehicle Care 10-37
6. Push the lamp assembly backinto 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 Exterior Lamp
Bulb
Number
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.
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 (38,1)Buick Regal Owner Manual - 2012
10-38 Vehicle Care
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 10‑39 andInstrument Panel
Fuse Block on page 10‑42.

Black plate (39,1)Buick Regal Owner Manual - 2012
Vehicle Care 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.
Engine Compartment Fuse Block
Fuse
Number Usage
1 Transmission
Control Module
2 Engine Control
Module Fuse
Number Usage
3 Not Used
4 Not Used

Black plate (40,1)Buick Regal Owner Manual - 2012
10-40 Vehicle Care
Fuse
Number Usage
5 Ignition,
Transmission
Control Module,
Engine Control
Module
6 Windshield Wiper
7 Not Used
8 Fuel Injection,
Ignition
System Even
9 Fuel Injection,
Ignition System Odd
10 Engine Control
Module
11 Oxygen Sensor
12 Starter
13 Fuel System Control
Module
14 Secondary Air
Induction
15 Not Used Fuse
Number Usage
16 Vacuum Pump
17 Ignition, Airbag
18 Not Used
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
28 Heated Rear
Window Fuse
Number Usage
29 Left‐Hand Seat
Lumbar
30 Right‐Hand Seat
Lumbar
31 Not Used
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
39 Not Used
40 Not Used
41 Vacuum Pump

Black plate (42,1)Buick Regal Owner Manual - 2012
10-42 Vehicle Care
Relay
Number Usage
11 Not Used
12 Cooling Fan (LHU)
13 Cooling Fan
(LAF/LHU)
14 High Intensity
Discharge Lamps
15 Ignition
16 Secondary
AIR Pump
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
2 Body Control
Module 7
3 Body Control
Module 5
4 Radio