2020 BUICK REGAL ECU

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
92 Seats and Restraints
Temporary Hood Repair
If the rear of the hood is raised, the
hood may be repositioned
temporarily if a towing service is not
available.
{Warning
Before beginning the procedure,
read all the instructions. Failure to
read and follow the instructions
could injure you or others, and
damage the vehicle.
{Warning
After the hood has lifted, the hood
hinge and latch area may be hot.
Do not touch the pedestrian
protection system components.
Allow the engine to cool before
attempting any repair.
{Warning
You or others could be injured
when the hood is lowered or
latched.
Be sure to keep fingers and other
body parts away from the edge of
the hood and fenders.
1. Place both hands on top of the right corner of the hood near
the windshield and push the
hood down quickly.
If the hood does not latch, push
down again with slightly more
force until the hood is latched
securely.
2. Repeat the previous step to latch the left side of the hood.
3. Pull up on the rear corners of the hood to make sure the
hood is latched securely and
will not lift.
{Warning
Do not drive the vehicle if the
hood is not securely latched at
both rear corners and the front
latch.
Operating your vehicle without the
hood securely latched can lead to
a collision resulting in damage to
your vehicle, damage to other
property, personal injury, or even
death.
4. Drive directly to a dealer for service. If you cannot go in for
service immediately, have the
vehicle towed.
Some noise will occur when
the vehicle is driven while the
hood is temporarily
repositioned.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
96 Storage
Additional Storage
Features
Cargo Cover
{Warning
An unsecured cargo cover could
strike people in a sudden stop or
turn, or in a crash. Store the
cargo cover securely or remove it
from the vehicle.
{Warning
Do not place objects on the cargo
cover. Sudden stops or turns can
cause objects to be thrown in the
vehicle. You or others could be
injured.
If equipped with a cargo cover, use
it to cover items in the rear of the
vehicle. Hatchback
To remove the cargo cover:
1. Remove both cords from the hooks on the liftgate.
2. Push up on the front sides of the cargo cover.
3. Remove it from the vehicle.
To install the cargo cover: 1. Align the clips on the underside of the cargo cover over the
pins on both sides and
push down. 2. Reconnect both of the cords to
the hooks at the top of the
liftgate.
Wagon
To use the cargo cover, pull the
handle toward the rear and up until
it engages in the side retainers.
For more access to the rear storage
area, pull the handle toward the rear
and down, then up. Pull down to
engage in the side retainers before
driving the vehicle.
To release the cargo cover, pull the
handle to the rear and down. It rolls
up automatically.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Storage 97
To remove the cargo cover:1. Pull the release lever on the right side up and hold it.
2. Lift the right side and remove it from the retainers.
3. Repeat the previous steps for removing the left side.
To install the cargo cover: 1. Insert the left side of the cargo cover in the recess, then pull
release the lever up.
2. Hold and insert the right side of the cargo cover in the recess
and engage.
Cargo Tie-Downs
(Wagon)
There is a movable system to
secure items on the load
compartment floor.
Insert the tie-downs into the rails
and press the button while
inserting it.
Press the button on a tie-down and
slide it to the required position. Fold
up the tie-downs to use them.
To remove the cargo tie-downs, fold
them down, press the button, and
remove.
Convenience Net
If equipped, the convenience net is
in the rear cargo area and can be
used to store small loads. The net
should not be used to store heavy
loads. Attach the loops on each side
of the net to the hooks located on
the sides of the rear cargo area.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
98 Storage
Roof Rack System
(Wagon)
{Warning
If something is carried on top of
the vehicle that is longer or wider
than the roof rack—like paneling,
plywood, or a mattress —the
wind can catch it while the vehicle
is being driven. The item being
carried could be violently torn off,
and this could cause a collision
and damage the vehicle. Never
carry something longer or wider
than the roof rack on top of the
vehicle unless using a GM
certified accessory carrier.
For vehicles with a roof rack, the
rack can be used to load items.
For roof racks that do not have
crossrails included, GM Certified
crossrails can be purchased as an
accessory. See your dealer for
additional information.
Caution
Loading cargo on the roof rack
that weighs more than 75 kg
(165 lb) or hangs over the rear or
sides of the vehicle may damage
the vehicle. Load cargo so that it
rests evenly between the
crossrails, making sure to fasten
cargo securely.
To prevent damage or loss of cargo
when driving, check to make sure
crossrails and cargo are securely
fastened. Loading cargo on the roof
rack will make the vehicle’ s center
of gravity higher. Avoid high speeds,
sudden starts, sharp turns, sudden
braking, or abrupt maneuvers;
otherwise it may result in loss of
control. If driving for a long distance,
on rough roads, or at high speeds,
occasionally stop the vehicle to
make sure the cargo remains in its
place. Do not exceed the maximum
vehicle capacity when loading the
vehicle.
See Vehicle Load Limits 0171.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Instruments and Controls 99
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . 100
Steering Wheel Controls . . . . . . 100
Heated Steering Wheel . . . . . . . 100
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Windshield Wiper/Washer . . . . 100
Rear Window Wiper/Washer . . . . . . . . . . . . . . . . . . . . . 102
Compass . . . . . . . . . . . . . . . . . . . . . 102
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 102
Power Outlets . . . . . . . . . . . . . . . . 103
Wireless Charging . . . . . . . . . . . . 103
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . 106
Instrument Cluster . . . . . . . . . . . . 107
Speedometer . . . . . . . . . . . . . . . . . 113
Odometer . . . . . . . . . . . . . . . . . . . . . 113
Tachometer . . . . . . . . . . . . . . . . . . . 113
Fuel Gauge . . . . . . . . . . . . . . . . . . . 113
Engine Oil Temperature Gauge
(Uplevel) . . . . . . . . . . . . . . . . . . . . 115 Engine Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 115
Voltmeter Gauge (Uplevel) . . . . 116
Seat Belt Reminders . . . . . . . . . . 117
Airbag Readiness Light . . . . . . . 118
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . 118
Charging System Light . . . . . . . 119
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . 119
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . 121
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 122
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 122
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . 122
Lane Keep Assist (LKA) Light . . . . . . . . . . . . . . . . . . . . . . . . 123
Vehicle Ahead Indicator . . . . . . 123
Pedestrian Ahead Indicator . . . 124
Traction Off Light . . . . . . . . . . . . . 124
StabiliTrak OFF Light . . . . . . . . . 124
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . 125
Engine Coolant Temperature Warning Light (Uplevel) . . . . . 125
Tire Pressure Light . . . . . . . . . . . 125
Engine Oil Pressure Light . . . . 126 Low Fuel Warning Light . . . . . . 126
Security Light . . . . . . . . . . . . . . . . . 127
High-Beam On Light . . . . . . . . . . 127
Adaptive Forward Lighting
(AFL) Light . . . . . . . . . . . . . . . . . . 127
Front Fog Lamp Light . . . . . . . . . 127
Lamps On Reminder . . . . . . . . . 128
Cruise Control Light . . . . . . . . . . 128
Door Ajar Light . . . . . . . . . . . . . . . 128
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . . 128
Head-Up Display (HUD) . . . . . . 133
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . 137
Engine Power Messages . . . . . 137
Vehicle Speed Messages . . . . . 138
Vehicle Personalization
Vehicle Personalization . . . . . . . 138
Universal Remote System
Universal Remote System . . . . 143
Universal Remote System Programming . . . . . . . . . . . . . . . 143
Universal Remote System Operation . . . . . . . . . . . . . . . . . . . 146

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Instruments and Controls 127
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 30.
High-Beam On Light
This light comes on when the
high-beam headlamps are in use.
See Headlamp High/Low-Beam
Changer 0148.
IntelliBeam Light
This light comes on when the
IntelliBeam system, if equipped, is
enabled. See Exterior Lamp
Controls 0147.
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) 0149.
Front Fog Lamp Light
For vehicles with fog lamps, this
light comes on when the fog lamps
are on.
The light goes out when the fog
lamps are turned off. See Fog
Lamps 0150.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
128 Instruments and Controls
Lamps On Reminder
This light comes on when the
exterior lamps are in use, except
when only the Daytime Running
Lamps (DRL) are active. See
Exterior Lamp Controls0147.
Cruise Control Light
The cruise control light is white
when the cruise control is on and
ready, and turns green when the
cruise control is set and active.
See Cruise Control 0194.
Adaptive Cruise Control Light
This light is white when the Adaptive
Cruise Control (ACC, if equipped) is
on and ready, and turns green when
the ACC is set and active. See
Adaptive Cruise Control 0196.
Door Ajar Light
This light comes on when a door is
open or not securely latched. Before
driving, check that all doors are
properly closed.
Information Displays
Driver Information
Center (DIC)
The DIC displays are shown in the
center of the instrument cluster in
the Info app. See Instrument Cluster
0 107. The displays show the status
of many vehicle systems.
yorz: Press to move up or
down in a list.
SorT: Press to move between
the interactive display zones in the
cluster.

Buick Regal Owner Manual (GMNA-Localizing-U.S./Canada-13557849) -
2020 - CRC - 6/25/19
Instruments and Controls 137
HUD Troubleshooting
If you cannot see the HUD image
when the ignition is on, check that:
.Nothing is covering the
HUD lens.
. The HUD brightness setting is
not too dim or too bright.
. The HUD is adjusted to the
proper height.
. Polarized sunglasses are
not worn.
. The windshield and HUD lens
are clean.
If the HUD image is not correct,
contact your dealer.
The windshield is part of the HUD
system. See Windshield
Replacement 0254.
Vehicle Messages
Messages displayed on the DIC
indicate the status of the vehicle or
some action that may be needed to
correct a condition. Multiple
messages may appear one after
another.
The messages that do not require
immediate action can be
acknowledged and cleared by
pressing
V. The messages that
require immediate action cannot be
cleared until that action is
performed.
All messages should be taken
seriously; clearing the message
does not correct the problem.
If a SERVICE message appears,
see your dealer.
Follow the instructions given in the
messages. The system displays
messages regarding the following
topics:
. Service Messages
. Fluid Levels
. Vehicle Security .
Brakes
. Steering
. Ride Control Systems
. Driver Assistance Systems
. Cruise Control
. Lighting and Bulb Replacement
. Wiper/Washer Systems
. Doors and Windows
. Seat Belts
. Airbag Systems
. Engine and Transmission
. Tire Pressure
. Battery
Engine Power Messages
ENGINE/PROPULSION POWER
IS REDUCED
This message displays when the
vehicle's propulsion power is
reduced. Reduced propulsion power
can affect the vehicle's ability to
accelerate. If this message is on,
but there is no observed reduction