
Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
116 Instruments and Controls
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 117
Steering Wheel Controls . . . . . . 117
Heated Steering Wheel . . . . . . . 117
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Windshield Wiper/Washer . . . . 117
Rear Window Wiper/Washer . . . . . . . . . . . . . . . . . . . . . . 118
Compass . . . . . . . . . . . . . . . . . . . . . 119
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 119
Power Outlets . . . . . . . . . . . . . . . . 119
Wireless Charging . . . . . . . . . . . . 120
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . 123
Instrument Cluster . . . . . . . . . . . . 124
Speedometer . . . . . . . . . . . . . . . . . 130
Odometer . . . . . . . . . . . . . . . . . . . . . 130
Tachometer . . . . . . . . . . . . . . . . . . . 130
Fuel Gauge . . . . . . . . . . . . . . . . . . . 130
Engine Oil Temperature Gauge
(Uplevel) . . . . . . . . . . . . . . . . . . . . 131 Engine Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 132
Voltmeter Gauge (Uplevel) . . . 132
Seat Belt Reminders . . . . . . . . . 133
Airbag Readiness Light . . . . . . . 134
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . 134
Charging System Light . . . . . . . 135
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . 135
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . 137
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 138
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 138
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . 138
Lane Keep Assist (LKA) Light . . . . . . . . . . . . . . . . . . . . . . . . 139
Vehicle Ahead Indicator . . . . . . 139
Traction Off Light . . . . . . . . . . . . . 139
StabiliTrak OFF Light . . . . . . . . . 140
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . 140
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . 140
Tire Pressure Light . . . . . . . . . . . 141
Engine Oil Pressure Light . . . . 141
Low Fuel Warning Light . . . . . . 142 Security Light . . . . . . . . . . . . . . . . . 142
High-Beam On Light . . . . . . . . . . 142
Adaptive Forward Lighting
(AFL) Light . . . . . . . . . . . . . . . . . . 142
Front Fog Lamp Light . . . . . . . . . 143
Lamps On Reminder . . . . . . . . . 143
Cruise Control Light . . . . . . . . . . 143
Door Ajar Light . . . . . . . . . . . . . . . 143
Information Displays
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . 144
Head-Up Display (HUD) . . . . . . 149
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . 152
Engine Power Messages . . . . . 152
Vehicle Speed Messages . . . . . 153
Vehicle Personalization
Vehicle Personalization . . . . . . . 153
Universal Remote System
Universal Remote System . . . . 158
Universal Remote System Programming . . . . . . . . . . . . . . . 158
Universal Remote System Operation . . . . . . . . . . . . . . . . . . . 161

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
142 Instruments and Controls
If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle
could be low on oil and might have
some other system problem. See
your dealer.
Low Fuel Warning Light
This light is near the fuel gauge and
comes on briefly when the ignition is
turned on as a check to show it is
working.
It also comes on when the fuel tank
is low on fuel. The light turns off
when fuel is added. If it does not,
have the vehicle serviced.
Security Light
The security light should come on
briefly as the engine is started. If it
does not come on, have the vehicle
serviced by your dealer. If the
system is working normally, the
indicator light turns off.
If the light stays on and the engine
does not start, there could be a
problem with the theft-deterrent
system. SeeImmobilizer Operation
0 50.
High-Beam On Light
This light comes on when the
high-beam headlamps are in use.
See Headlamp High/Low-Beam
Changer 0163.
Adaptive Forward
Lighting (AFL) Light
This light should come on briefly as
the vehicle is started. If it does not
come on, have the vehicle serviced
by your dealer.
This light comes on solid when
there is a problem with the AFL
system. It flashes when the system
is switching between lighting
modes. See Adaptive Forward
Lighting (AFL) 0164.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
162 Lighting
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . 162
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 163
Headlamp High/Low-Beam Changer . . . . . . . . . . . . . . . . . . . . 163
Flash-to-Pass . . . . . . . . . . . . . . . . 163
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . 163
Automatic Headlamp System . . . . . . . . . . . . . . . . . . . . . . 163
Adaptive Forward Lighting (AFL) . . . . . . . . . . . . . . . 164
Hazard Warning Flashers . . . . . 165
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . 165
Fog Lamps . . . . . . . . . . . . . . . . . . . 166
Interior Lighting
Instrument Panel Illumination Control . . . . . . . . . . . . . . . . . . . . . . 166
Dome Lamps . . . . . . . . . . . . . . . . . 166
Reading Lamps . . . . . . . . . . . . . . 167
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . . 167
Exit Lighting . . . . . . . . . . . . . . . . . . 167
Battery Load Management . . . 168
Battery Power Protection . . . . . 168
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . 168Exterior Lighting
Exterior Lamp Controls
The exterior lamp control is on the
instrument panel to the left of the
steering column.
There are four positions.
O: Turns the exterior lamps off and
deactivates the AUTO mode. Turn
to
Oagain to reactivate the
AUTO mode.
In Canada, the headlamps will
automatically reactivate when the
vehicle is shifted out of P (Park).
AUTO : Turns the exterior lamps on
and off automatically depending on
outside lighting.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Lighting 163
;:Turns on the parking lamps
including all lamps, except the
headlamps.
5: Turns on the headlamps
together with the parking lamps and
instrument panel lights.
Exterior Lamps Off
Reminder
A warning chime sounds if the driver
door is opened while the ignition is
off and the exterior lamps are on.
Headlamp High/
Low-Beam Changer
Push the turn signal lever away
from you and release to turn the
high beams on. To return to low
beams, push the lever again or pull
it toward you and release.
This indicator light turns on in the
instrument cluster when the
high-beam headlamps are on.
Flash-to-Pass
To flash the high beams, pull the
turn signal lever toward you, and
release.
Daytime Running
Lamps (DRL)
DRL can make it easier for others to
see the front of your vehicle during
the day. Fully functional DRL are
required on all vehicles first sold in
Canada.
The DRL will come on when all of
the following conditions are met:
. The ignition is on.
. The exterior lamps control is
in AUTO.
. The light sensor determines it is
daytime.
. The parking brake is released or
the vehicle is not in P (Park). When the DRL are on, the taillamps,
sidemarker lamps, instrument panel
lights, and other lamps will not
be on.
The DRL turn off when the
headlamps are turned to
Oor the
ignition is off. For vehicles first sold
in Canada, the DRL can only be
turned off when the vehicle is
parked.
This vehicle may have a DRL
disabling function. When the DRL
are on and a turn signal is activated,
the DRL on that side will be off until
the turn signal goes off.
Automatic Headlamp
System
When the exterior lamp control is
set to AUTO and it is dark enough
outside, the headlamps come on
automatically.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
168 Lighting
The exterior lamps and dome lamp
remain on for a set amount of time,
then automatically turn off.
The exterior lamps turn off
immediately by turning the exterior
lamp control off.
This feature can be changed. See
Vehicle Personalization0153.
Battery Load
Management
The vehicle has Electric Power
Management (EPM) that estimates
the battery's temperature and state
of charge. It then adjusts the voltage
for best performance and extended
life of the battery.
When the battery's state of charge
is low, the voltage is raised slightly
to quickly bring the charge back up.
When the state of charge is high,
the voltage is lowered slightly to
prevent overcharging. If the vehicle
has a voltmeter gauge or a voltage
display on the Driver Information
Center (DIC), you may see the voltage move up or down. This is
normal. If there is a problem, an
alert will be displayed.
The battery can be discharged at
idle if the electrical loads are very
high. This is true for all vehicles.
This is because the generator
(alternator) may not be spinning fast
enough at idle to produce all of the
power needed for very high
electrical loads.
A high electrical load occurs when
several of the following are on, such
as: headlamps, high beams, rear
window defogger, climate control fan
at high speed, heated seats, engine
cooling fans, trailer loads, and loads
plugged into accessory power
outlets.
EPM works to prevent excessive
discharge of the battery. It does this
by balancing the generator's output
and the vehicle's electrical needs.
It can increase engine idle speed to
generate more power whenever
needed. It can temporarily reduce
the power demands of some
accessories.Normally, these actions occur in
steps or levels, without being
noticeable. In rare cases at the
highest levels of corrective action,
this action may be noticeable to the
driver. If so, a DIC message might
be displayed and it is recommended
that the driver reduce the electrical
loads as much as possible.
Battery Power Protection
The battery saver feature is
designed to protect the vehicle's
battery.
If the exterior lamps or any interior
lamp is left on and the ignition is
turned off, the battery rundown
protection system automatically
turns the lamp off after about
10 minutes.
Exterior Lighting Battery
Saver
The exterior lamps turn off about
10 minutes after the ignition is
turned off, if the parking lamps or
headlamps have been manually left
on. This protects against draining

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
Vehicle Care 269
Bulb Replacement
For the proper type of replacement
bulbs, or any bulb changing
procedure not listed in this section,
contact your dealer.
Caution
Do not replace incandescent
bulbs with aftermarket LED
replacement bulbs. This can
cause damage to the vehicle
electrical system.
Halogen Bulbs
{Warning
Halogen bulbs have pressurized
gas inside and can burst if you
drop or scratch the bulb. You or
others could be injured. Be sure
to read and follow the instructions
on the bulb package.
High Intensity Discharge
(HID) Lighting
{Warning
The High Intensity Discharge
(HID) lighting system operates at
a very high voltage. If you try to
service any of the system
components, you could be
seriously injured. Have your
dealer or a qualified technician
service them.
After an HID headlamp bulb has
been replaced, the beam might be a
slightly different shade than it was
originally. This is normal.
LED Lighting
This vehicle has several LED lamps.
For replacement of any LED lighting
assembly, contact your dealer.
Headlamps
Driver Side Shown, Passenger Side Similar
1. Low Beam
2. High Beam
Low-Beam Headlamp/Daytime
Running Lamp (Base)
1. For the driver side bulb,remove the windshield washer
bottle filler neck by firmly
pulling it straight up and out of
the bottle.
2. Remove the cap from the back of the headlamp assembly.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-12163021) -
2019 - CRC - 11/14/18
270 Vehicle Care
3. Disconnect the electricalconnector.
4. Remove the bulb socket from the headlamp assembly.
5. Reverse Steps 1–4 to install.
High/Low-Beam Headlamps
(Uplevel)
The high/low-beam headlamps on
the uplevel headlamp system are
Light Emitting Diode (LED) and
should be replaced by your dealer.
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.
Front Turn Signal Lamps
Sidemarkers, daytime running
lamps and turn signal lamps are
LEDs and cannot be changed.
See your dealer.
Taillamps, Turn Signal,
Stoplamps, and Back-Up
Lamps
Driver Side Shown, Passenger
Side Similar
To replace any one of these bulbs: 1. Open the liftgate. See Liftgate
0 41.

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