change time BUICK REGAL 2020 User Guide

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Instruments and Controls 145
second button press may
be required. For a second
time, press and hold the
newly programmed button
for five seconds. If the light
stays on or the garage door
moves, programming is
complete.
. If the indicator light blinks
rapidly for two seconds,
then changes to a solid light
and the garage door does
not move, continue with
programming Steps 4–6.
Learn or Smart Button
4. After completing Steps 1–3, locate the Learn or Smart
button inside the garage on the
garage door opener receiver. The name and color of the
button may vary by
manufacturer.
5. Press and release the Learn or Smart button. Step 6 must be
completed within 30 seconds of
pressing this button.
6. Inside the vehicle, press and hold the newly programmed
Universal Remote system
button for two seconds and
then release it. If the garage
door does not move or the
lamp on the garage door
opener receiver does not flash,
press and hold the same
button a second time for
two seconds, then release it.
Again, if the door does not
move or the garage door lamp
does not flash, press and hold
the same button a third time for
two seconds, then release it.
The Universal Remote system
should now activate the
garage door. Repeat the process for
programming the two remaining
buttons.
Radio Signals for Canada and
Some Gate Operators
For questions or programming help,
see www.homelink.com/gm or call
1-800-355-3515.
Canadian radio-frequency laws and
some U.S. gate operators require
transmitter signals to time out or quit
after several seconds of
transmission. This may not be long
enough for the Universal Remote
system to pick up the signal during
programming.
If the programming did not work,
replace Step 2 under
“Programming
the Universal Remote System” with
the following:
Press and hold the Universal
Remote system button while
pressing and releasing the
hand-held transmitter button every
two seconds until the signal has
been successfully accepted by the
Universal Remote system. The
Universal Remote system indicator

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 7/1/19
Lighting 147
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . 147
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 148
Headlamp High/Low-Beam Changer . . . . . . . . . . . . . . . . . . . . 148
Flash-to-Pass . . . . . . . . . . . . . . . . 148
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . 148
Automatic Headlamp System . . . . . . . . . . . . . . . . . . . . . . 148
Adaptive Forward Lighting (AFL) . . . . . . . . . . . . . . . 149
Hazard Warning Flashers . . . . . 150
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . 150
Fog Lamps . . . . . . . . . . . . . . . . . . . 150
Interior Lighting
Instrument Panel Illumination Control . . . . . . . . . . . . . . . . . . . . . . 151
Dome Lamps . . . . . . . . . . . . . . . . . 151
Reading Lamps . . . . . . . . . . . . . . 152
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . . 152
Exit Lighting . . . . . . . . . . . . . . . . . . 152
Battery Load Management . . . 153
Battery Power Protection . . . . . 153
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . 154Exterior 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-13557849) -
2020 - CRC - 7/1/19
148 Lighting
;: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-13557849) -
2020 - CRC - 7/1/19
Lighting 149
There is a light sensor on top of the
instrument panel. Do not cover the
sensor; otherwise the headlamps
will come on when they are not
needed.
The system may also turn on the
headlamps when driving through a
parking garage or tunnel.
When it is bright enough outside,
the headlamps will turn off or may
change to Daytime Running
Lamps (DRL).
The automatic headlamp system
turns off when the exterior lamp
control is turned to
Oor the ignition
is off.
Adaptive Forward
Lighting (AFL)
If equipped, the AFL pivots the
headlamps horizontally to provide
greater road illumination while
turning. To enable AFL, set the
exterior lamp control to the AUTO
position. Moving the switch out of
the AUTO position deactivates the
system. AFL operates when the
vehicle speed is greater than 3 km/h
(2 mph). AFL does not operate
when the transmission is in
R (Reverse). AFL is not immediately
operable after starting the vehicle;
driving a short distance is required
to calibrate the AFL. See Exterior
Lamp Controls 0147.
LED Headlamp System
This system automatically controls
the LED headlamps light intensity
and distribution based on the
lighting condition, road type, and
driving situation. The vehicle adapts
the headlamps automatically to
enable optimal lighting while driving.
The Intelligent Light Distribution
feature can be enabled or disabled. See
“Adaptive Forward Lighting”
under Vehicle Personalization
0 138.
The following lighting functions are
available when the exterior lamp
control is in the AUTO or
5
position.
Curve Lighting
Certain LEDs turn on automatically
to improve lighting in curves. This is
based on the steering wheel
position and vehicle speeds from
40 km/h (25 mph) to 70 km/h
(43 mph).
Corner Lighting
If equipped with cornering lamps,
certain LEDs automatically come on
when all of the following occur:
. The turn signals are activated or
the steering wheel is at a
calibrated angle.
. The vehicle is traveling up to a
speed of 40 km/h (25 mph).

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 7/1/19
150 Lighting
Hazard Warning Flashers
|:Press to make the front and
rear turn signal lamps flash on and
off. Press again to turn the
flashers off.
The hazard warning flashers turn on
automatically if the airbags deploy.
Turn and Lane-Change
Signals
Move the lever all the way up or
down to signal a turn.
An arrow on the instrument cluster
flashes in the direction of the turn or
lane change.
Raise or lower the lever until the
arrow starts to flash to signal a lane
change. Hold it there until the lane
change is completed. If the lever is
briefly pressed and released, the
turn signal flashes three times.
The turn and lane-change signal
can be turned off manually by
moving the lever back to its original
position. If after signaling a turn or lane
change the arrow flashes rapidly or
does not come on, a signal bulb
might be burned out.
Have any burned out bulbs
replaced. If the bulb is not burned
out, check the fuse. See
Fuses and
Circuit Breakers 0259.
Fog Lamps
The fog lamps button is on the
instrument panel to left of the
steering wheel.
To turn on the fog lamps, the ignition
and the headlamps or parking lamps
must be on.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 7/1/19
Lighting 153
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 Personalization0138.
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.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Driving and Operating 177
{Warning
Turning off the vehicle while
moving may cause loss of power
assist in the brake and steering
systems and disable the airbags.
While driving, only shut the
vehicle off in an emergency.
If the vehicle cannot be pulled over,
and must be shut off while driving,
press and hold ENGINE START/
STOP for longer than two seconds,
or press twice in five seconds.
ACC/ACCESSORY (Amber
Indicator Light) : This mode allows
you to use some electrical
accessories when the engine is off.
With the ignition off, pressing
ENGINE START/STOP one time
without the brake pedal applied will
place the ignition system in ACC/
ACCESSORY.
The ignition will switch from ACC/
ACCESSORY to OFF after
five minutes to prevent battery
run down. ON/RUN/START (Green Indicator
Light) :
This mode is for driving and
starting. With the ignition off, and
the brake pedal applied, pressing
ENGINE START/STOP once will
place the ignition system in ON/
RUN/START. Once engine cranking
begins, release the button. Engine
cranking will continue until the
engine starts. See Starting the
Engine 0177. The ignition will then
remain in ON/RUN.
Service Mode
This power mode is available for
service and diagnostics, and to
verify the proper operation of the
malfunction indicator lamp as may
be required for emission inspection
purposes. With the vehicle off, and
the brake pedal not applied,
pressing and holding ENGINE
START/STOP for more than
five seconds will place the vehicle in
Service Mode. The instruments and
audio systems will operate as they
do in ON/RUN, but the vehicle will
not be able to be driven. The engine will not start in Service Mode. Press
ENGINE START/STOP again to turn
the vehicle off.
Starting the Engine
Place the transmission in the
proper gear.
Caution
If you add electrical parts or
accessories, you could change
the way the engine operates. Any
resulting damage would not be
covered by the vehicle warranty.
See
Add-On Electrical Equipment
0 229.
Move the shift lever to P (Park) or
N (Neutral). To restart the vehicle
when it is already moving, use
N (Neutral) only.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
188 Driving and Operating
Brakes
Antilock Brake
System (ABS)
The Antilock Brake System (ABS)
helps prevent a braking skid and
maintain steering while
braking hard.
ABS performs a system check when
the vehicle is first driven.
A momentary motor or clicking noise
may be heard while this test is going
on, and the brake pedal may move
slightly. This is normal.
If there is a problem with ABS, this
warning light stays on. SeeAntilock
Brake System (ABS) Warning Light
0 122. ABS does not change the time
needed to get a foot on the brake
pedal and does not always
decrease stopping distance. If you
get too close to the vehicle ahead,
there will not be enough time to
apply the brakes if that vehicle
suddenly slows or stops. Always
leave enough room ahead to stop,
even with ABS.
Using ABS
Do not pump the brakes. Just hold
the brake pedal down firmly.
Hearing or feeling ABS operate is
normal.
Braking in Emergencies
ABS allows steering and braking at
the same time. In many
emergencies, steering can help
even more than braking.
Electric Parking Brake
The Electric Parking Brake (EPB)
can always be activated, even if the
ignition is off. To prevent draining
the battery, avoid repeated cycles of
the EPB when the engine is not
running.
The system has a red parking brake
status light and an amber parking
brake warning light. There are also
parking brake-related Driver
Information Center (DIC) messages.
In case of insufficient electrical
power, the EPB cannot be applied
or released.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Driving and Operating 193
The following electronic systems
have been calibrated for each
driving mode:
.Continuous Damping
Control (CDC)
. Power Steering Assist
. Automatic Transmission
. All-Wheel Drive (AWD)
When the vehicle is started, Normal
mode comes on automatically. Sport
mode or GS mode can be selected
by pressing and releasing SPORT
or GS button. The light on the
selected button will illuminate,
indicating the driving mode. To
return to Normal mode, press and
release the illuminated button.
When both button lights are off, the
vehicle is in Normal mode. The
driving mode can be changed at any
time, whether the vehicle is
stationary or moving.
Normal : This is the default mode
used for normal city driving and
long-distance highway driving. This
setting provides a smooth, soft ride. .
Shock absorbers are in the
comfort setting.
. Power steering assist is normal.
Sport : Use this mode when
personal preference or road
conditions demand more control.
This setting provides responsive,
controlled steering and handling.
It also modifies the automatic
transmission shift feel and the AWD
torque distribution for sportier
performance.
. Shock absorbers stiffen to
provide better contact with the
road surface and increase body
control.
. Power steering assist is reduced
for sportier feel.
. The automatic transmission
shifts more aggressively for
sportier feel and improved
acceleration.*
. The AWD system distributes
more AWD engine torque to the
rear axle. GS :
Use this mode for additional
control and responsiveness, and
sportiest performance.
. Shock absorbers stiffen to the
firmest setting for increased
control.
. Power steering assist is reduced
for sportier feel.
. The automatic transmission
shifts more aggressively for
sportier feel and improved
acceleration.*
. The AWD system distributes
more AWD engine torque to the
rear axle.
* Performance Shifting is enabled in
Sport mode and GS mode.
Performance Shifting detects
spirited driving and adapts
transmission shifts to maximize
vehicle acceleration.
Personalized Settings in
Sport Mode
The driver can customize the Sport
Mode settings to fit their preference.
See Vehicle Personalization 0138.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Driving and Operating 197
Warning (Continued)
.Visibility is low, such as in
fog, rain, or snow
conditions. ACC
performance is limited under
these conditions.
. On slippery roads where
fast changes in tire traction
can cause excessive
wheel slip.
5:Press to turn the system on or
off. The indicator turns white on the
instrument cluster when ACC is
turned on.
RES+ : Press the control up briefly
to make the vehicle resume to a
previously set speed, or hold
upward to accelerate. If cruise
control is already engaged, use to
increase vehicle speed.
SET– :Press the control down
briefly to set the speed and activate
cruise control. If cruise control is
already engaged, use to decrease
vehicle speed.
*: Press to disengage ACC
without erasing the selected set
speed.
[: Press to select a following gap
time (or distance) setting for ACC of
Far, Medium, or Near.
The speedometer reading can be
displayed in either English or metric
units. See Instrument Cluster 0107.
The increment value used depends
on the units displayed. Setting Adaptive Cruise Control
If
5is on when not in use, it could
get pressed and go into ACC when
not desired. Keep
5off when
cruise is not being used.
Select the set speed desired for
ACC. This is the vehicle speed
when no vehicle is detected in
its path.
ACC will not set at a speed less
than 25 km/h (15 mph), although it
can be resumed when driving at
lower speeds.
To set ACC:
1. Press
5.
2. Get up to the desired speed.
3. Press and release SET–.
4. Remove your foot from the accelerator.
After ACC is set, it may immediately
apply the brakes if a vehicle ahead
is detected closer than the selected
following gap.