2019 BUICK REGAL SPORTBACK Fuse

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Vehicle Care 271
2. Remove the rear cargo areatrim panel push pin.
3. Pull the rear cargo area trim panel back to gain access to
the taillamp assembly.4. Remove the two nuts thatsecure 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.
Electrical System
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.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
272 Vehicle Care
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.
{Danger
Fuses and circuit breakers are
marked with their ampere rating.
Do not exceed the
specified amperage rating when
replacing fuses and circuit
breakers. Use of an oversized
fuse or circuit breaker can result
in a vehicle fire. You and others
could be seriously injured or
killed.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, see
Engine
Compartment Fuse Block 0273 and
Instrument Panel Fuse Block 0276.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Vehicle Care 273
Engine Compartment
Fuse Block
To remove the fuse block cover,
squeeze 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.
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
1 –
2 –
3 ABS pump
5 –
6 Rear closure Fuses Usage
7 Fog lamp
8 Memory control module
9 Heated windshield
10 Seat lumbar 11 DC DC converter 1

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
274 Vehicle Care
FusesUsage
12 Rear window defogger
13 Heated mirrors
14 –
15 –
16 Front wipers
17 Passenger power seat
18 Sunshade
19 Driver power seat
21 Sunroof
22 Rear wiper
23 Auto headlamp leveling
24 –
26 Transmission control module/Ignition
27 Instrument panel/ Ignition
28 –
29 Rear vision camera/ Ventilation Fuses
Usage
30 Malfunction indicator lamp/Shift solenoid
32 Canister vent/Video processing module
33 Front heated seats
34 Rear heated seats
35 All wheel drive damping control
36 Fuel module
38 –
39 –
40 Steering column lock
41 –
43 Heated steering wheel
44 Headlamp leveling
45 –
46 Engine control module/Ignition
47 –
48 Cooling fan/DC DC converter 2 Fuses
Usage
49 RDCM
50 –
51 –
52 –
53 –
54 –
55 –
56 Starter
57 –
58 –
59 Left LED lamps
60 Cooling fan
61 –
62 –
63 –
65 A/C HEV
67 –
68 –

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Vehicle Care 275
FusesUsage
69 Right LED lamp/ Right high-beam
headlamps
70 Left high-beam headlamps
72 Starter pinion
74 –
75 Engine control module
76 Powertrain –off
engine
77 –
78 Horn
79 Washer pump
81 Transmission control module/Engine
control module
82 –
83 Ignition coils
84 Coil
85 Shunt 60A
86 – Fuses
Usage
87 SAI fuel heater
88 Aeroshutter
89 –
91 –
92 TPIM motor generator/TPIM
93 Keyless entry control module
95 Water change air coolant pump
96 Fuel heater
97 –
99 –
Relays Usage
4 –
20 Rear window defogger
25 Front wiper control
31 Run/Crank
37 Front wiper speed Relays
Usage
42 –
64 Starter motor
66 Powertrain
71 Right LED high beam
73 AC clutch
80 Starter pinion
90 Water change air coolant pump
94 –
98 Fuel heater

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
276 Vehicle Care
Instrument Panel Fuse
Block
The instrument panel fuse block is
in the instrument panel, on the
driver side of the vehicle. To access
the fuses, press in on the sides of
the cover and pull to release it from
the instrument panel.
Pull the panel toward you to release
it from the hinges.
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
F1 Left window
F2 Right window
F3 –
F4 HVAC blower
F5 Battery 2 Fuses
Usage
F6 Electric steering column
F7 –
F8 Battery 3
F9 Engine control module/Battery
F10 Body control module 2 On/Off

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Vehicle Care 277
FusesUsage
F11 –
F12 –
F13 –
F14 –
F15 Transmission control module On/Off
F16 Amplifier
F17 –
F18 Battery 7
F19 –
F20 Battery 1
F21 Battery 4
F22 Battery 6
F23 Electric steering column lock
F24 Airbag sensing diagnostic module/
Passenger sensing
module
F25 Diagnostic link
F26 – Fuses
Usage
F27 AC DC inverter
F28 –
F29 Body control module 8
F30 Overhead console
F31 Steering wheel control
F32 –
F33 HVAC
F34 Center gateway module
F35 Integrated chassis control module
F36 Charger
F37 Auxiliary power outlet/Cigar lighter
F38 OnStar
F39 Monitor
F40 Object detection
F41 Body control module 1 On/Off
F42 Radio Fuses
Usage
F43 Rear accessory power outlet
F44 Front accessory power outlet
Relays Usage
K1 –
K2 Retained accessory power
K3 –
K4 –
K5 Logistics

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Index 381
Driver InformationCenter (DIC) . . . . . . . . . . . . . . . . . . 144
Driving Assistance Systems . . . . . . . . . . 221
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 235
Defensive . . . . . . . . . . . . . . . . . . . . . 180
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 180
For Better Fuel Economy . . . . . . . 27
Hill and Mountain Roads . . . . . . 183
If the Vehicle is Stuck . . . . . . . . . 185
Loss of Control . . . . . . . . . . . . . . . 182
Off-Road Recovery . . . . . . . . . . . 182
Vehicle Load Limits . . . . . . . . . . . 186
Wet Roads . . . . . . . . . . . . . . . . . . . 183
Winter . . . . . . . . . . . . . . . . . . . . . . . . 184
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 171
E
Electric Parking Brake . . . . . . . . . . 202
Electric Parking Brake Light . . . . 138
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 243
Electrical System Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 273
Fuses and Circuit Breakers . . . 272 Electrical System (cont'd)
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 276
Overload . . . . . . . . . . . . . . . . . . . . . 271
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 367
Engine Air Cleaner/Filter . . . . . . . . . . . . . 255
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 135
Compartment Overview . . . . . . . 248
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 132
Coolant Temperature
Warning Light . . . . . . . . . . . . . . . 140
Cooling System . . . . . . . . . . . . . . . 256
Drive Belt Routing . . . . . . . . . . . . 351
Exhaust . . . . . . . . . . . . . . . . . . . . . . 197
Heater . . . . . . . . . . . . . . . . . . . . . . . . 194
Oil Life System . . . . . . . . . . . . . . . 253
Oil Pressure Light . . . . . . . . . . . . 141
Overheating . . . . . . . . . . . . . . . . . . 260
Power Messages . . . . . . . . . . . . . 152
Running While Parked . . . . . . . . 198
Starting . . . . . . . . . . . . . . . . . . . . . . . 192
Engine Oil Temperature Gauge . . . . . . . . . . 131
Entry Lighting . . . . . . . . . . . . . . . . . . . 167 Equipment, Towing . . . . . . . . . . . . . 241
Event Data Recorders . . . . . . . . . . 364
Exit Lighting . . . . . . . . . . . . . . . . . . . . 167
Extended Parking . . . . . . . . . . . . . . . 197
Extender, Seat Belt . . . . . . . . . . . . . . 76
Exterior Lamp Controls . . . . . . . . . 162
Exterior Lamps Off Reminder . . . 163
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 168
F
FeaturesMemory . . . . . . . . . . . . . . . . . . . . . . . . . 13
Filter, Engine Air Cleaner . . . . . . . . . . . 255
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 163
Flashers, Hazard Warning . . . . . . 165
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 298 Changing . . . . . . . . . . . . . . . . . . . . . 313
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 333
Fluid Automatic Transmission . . . . . . 254
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 263
Washer . . . . . . . . . . . . . . . . . . . . . . . 261
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 166 Bulb Replacement . . . . . . . . . . . . 270
Folding Mirrors . . . . . . . . . . . . . . . . . . 52
Forward Automatic Braking . . . . . 223