lock BUICK REGAL 2015 Owners Manual

Black plate (9,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Vehicle Care 10-9
1.Engine Air Cleaner/Filter on
page 10-16.
2. Engine Cover.
3. Engine Oil Fill Cap. See Engine
Oil on page 10-11.
4. Engine Oil Dipstick. See Engine
Oil on page 10-11. 5. Transmission Fluid Cap and
Dipstick. See Automatic
Transmission Fluid on
page 10-15.
6. Brake Master Cylinder Reservoir. See Brakes on
page 10-24.
7. Coolant Surge Tank and Pressure Cap. See Engine
Coolant on page 10-19. 8. Battery Cover. See
Battery on
page 10-26.
9. Engine Compartment Fuse
Block on page 10-35.
10. Windshield Washer Fluid Reservoir. See Washer Fluid
on page 10-23.

Black plate (11,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Vehicle Care 10-11
1.Engine Air Cleaner/Filter on
page 10-16.
2. Engine Cover.
3. Engine Cooling Fans (Out of View). See Cooling System on
page 10-18.
4. Engine Oil Fill Cap. See Engine
Oil on page 10-11.
5. Engine Oil Dipstick (Out of View). See Engine Oil on
page 10-11.
6. High Voltage Cable (Orange Color).
7. Transmission Fluid Cap. See Automatic Transmission Fluid on
page 10-15.
8. Brake Master Cylinder Reservoir. See Brakes on
page 10-24.
9. Battery (Under Cover). See Battery on page 10-26.
10. Coolant Surge Tank and Pressure Cap. See Engine
Coolant on page 10-19. 11.
Engine Compartment Fuse
Block on page 10-35.
12. Windshield Washer Fluid Reservoir. See Washer Fluid
on page 10-23.
Engine Oil
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
.Always use engine oil approved
to the proper specification and of
the proper viscosity grade. See
“Selecting the Right Engine Oil”
in this section.
.Check the engine oil level
regularly and maintain the
proper oil level. See “Checking
Engine Oil” and“When to Add
Engine Oil” in this section.
.Change the engine oil at the
appropriate time. See Engine Oil
Life System on page 10-13.
.Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
Checking Engine Oil
It is a good idea to check the engine
oil level at each fuel fill. In order to
get an accurate reading, the oil
must be warm and the vehicle must
be on level ground. The engine oil
dipstick handle is a loop. See
Engine Compartment Overview on
page 10-6 for the location of the
engine oil dipstick.
Obtaining an accurate oil level
reading is essential:
1. If the engine has been running recently, turn off the engine and
allow several minutes for the oil
to drain back into the oil pan.
Checking the oil level too soon
after engine shutoff will not
provide an accurate oil level
reading.

Black plate (21,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Vehicle Care 10-21
water and DEX-COOL coolant at the
coolant surge tank, but be sure the
cooling system, including the
coolant surge tank pressure cap, is
cool before you do it.
{Warning
Steam and scalding liquids from a
hot cooling system can blow out
and burn you badly. Never turn
the cap when the cooling system,
including the surge tank pressure
cap, is hot. Wait for the cooling
system and surge tank pressure
cap to cool.
{Caution
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 L4 Turbo Engine Shown, 2.4LL4 Engine 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
a hiss, wait for that to stop. This
will allow any pressure still left to
be vented out the
discharge hose.
2. Keep turning the pressure cap slowly and remove it.

Black plate (28,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
10-28 Vehicle Care
Starter Switch 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.
2. Apply both the parking brake and the regular brake.
Do not use the accelerator
pedal, and be ready to turn off
the engine immediately if it
starts. 3. For automatic transmission
vehicles, try to start the engine
in each gear. The vehicle should
start only in P (Park) or
N (Neutral). If the vehicle starts
in any other position, contact
your dealer for service.
For manual transmission
vehicles, put the shift lever in
Neutral, push the clutch pedal
down halfway, and try to start
the engine. The vehicle should
start only when the clutch pedal
is pushed down all the way to
the floor. If the vehicle starts
when the clutch pedal is not
pushed all the way down,
contact your dealer for service.
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. Apply the parking brake. 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

Black plate (29,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Vehicle Care 10-29
normal effort. If the shift lever
moves out of P (Park), contact
your dealer for service.
Ignition Transmission
Lock Check
If equipped with a key type ignition,
while parked and with the parking
brake set, try to turn the ignition to
LOCK/OFF in each shift lever
position.
.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.
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.
.To check the P (Park)
mechanism's holding ability:
With the engine running, shift to
P (Park). Then release the
parking brake followed by the
regular brake.
Contact your dealer if service is
required.
Wiper Blade Replacement
Windshield wiper blades should be
inspected for wear or cracking.
It is a good idea to clean the wiper
blade assembly on a regular basis.
When worn, or when cleaning is
ineffective, replace the wiper blade.
For proper windshield wiper blade
length and type, see Maintenance
Replacement Parts on page 11-13.
{Caution
Allowing the wiper arm to touch
the windshield when no wiper
blade is installed could damage
(Continued)

Black plate (32,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
10-32 Vehicle Care
Front Turn Signal and
Sidemarker Lamps (Base and
Uplevel)
1. Remove the outside cap fromthe uplevel headlamp assembly.
2. Remove the bulb socket from the headlamp assembly.
3. Remove the bulb from the socket.
4. Reverse steps 1–3 to install.
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
To replace any one of these bulbs:
1. Open the trunk. See Trunk
Release on page 1-6.
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 three 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

Black plate (33,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Vehicle Care 10-33
Bulb Assembly
1. 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 W16W or 921
Fog Lamp H10
Front Turn Signal
Lamp (Base) WY21W
Front Turn Signal
Lamp (Uplevel) PSY24W
Low-Beam
Headlamp (Base) HIR2
High-Beam
Headlamp (Base) HIR2Exterior Lamp
Bulb
Number
License Plate Lamp 194
Daytime Running
Lamp (DRL) (Base) W21/
5W ULL
Turn Signal Lamp W21W or 7440
Sidemarker Lamp 194
For replacement bulbs not listed
here, contact your dealer.

Black plate (35,1)Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
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.
{Caution
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 (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
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
2 Engine Control Module
3 Not Used Fuse
Number Usage
4 Not Used
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 (GMNA-Localizing-U.S./Canada/Mexico-
7576024) - 2015 - CRC - 9/15/14
Vehicle Care 10-37
Fuse
Number Usage
16 Heated Steering Wheel
17 Not Used
18 BPIM (eAssist Only)
19 Not Used
20 Not Used
21 Rear Power Windows
22 Antilock Brake System Valve
23 Obstacle Detection
24 Front Power Windows
25 Power Outlets
26 Antilock Brake System Pump
27 Electric Parking Brake
28 Rear Window Defogger Fuse
Number Usage
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 Adaptive Cruise
37 Right-Hand High-Beam
Headlamp
38 Left-Hand High-Beam
Headlamp
39 All-Wheel Drive
40 Not Used
41 Vacuum Pump Fuse
Number Usage
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
50 Left-Hand Low Beam, High Intensity
Discharge
Headlamp
51 Horn