ECU CHEVROLET IMPALA 2020 Owner's Guide

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
88 Instruments and Controls
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . . 89
Steering Wheel Controls . . . . . . . 89
Heated Steering Wheel . . . . . . . . 89
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Windshield Wiper/Washer . . . . . . 90
Compass . . . . . . . . . . . . . . . . . . . . . . 91
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Power Outlets . . . . . . . . . . . . . . . . . 92
Wireless Charging . . . . . . . . . . . . . 92
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . 95
Instrument Cluster . . . . . . . . . . . . . 96
Speedometer . . . . . . . . . . . . . . . . . . 98
Odometer . . . . . . . . . . . . . . . . . . . . . . 98
Trip Odometer . . . . . . . . . . . . . . . . . 98
Tachometer . . . . . . . . . . . . . . . . . . . . 98
Fuel Gauge . . . . . . . . . . . . . . . . . . . . 99
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 100
Seat Belt Reminders . . . . . . . . . 100
Airbag Readiness Light . . . . . . . 101 Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . 101
Charging System Light . . . . . . . 102
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . 103
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . 104
Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 105
Service Electric Parking Brake Light . . . . . . . . . . . . . . . . . . . . . . . . 105
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . 106
Lane Departure Warning (LDW) Light . . . . . . . . . . . . . . . . . 106
Vehicle Ahead Indicator . . . . . . 106
Traction Off Light . . . . . . . . . . . . . 106
StabiliTrak OFF Light . . . . . . . . . 107
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . 107
Tire Pressure Light . . . . . . . . . . . 108
Engine Oil Pressure Light . . . . 108
Low Fuel Warning Light . . . . . . 108
Security Light . . . . . . . . . . . . . . . . . 109
High-Beam On Light . . . . . . . . . . 109
Lamps On Reminder . . . . . . . . . 109
Cruise Control Light . . . . . . . . . . 109
Door Ajar Light . . . . . . . . . . . . . . . 110
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . . 110
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . 112
Engine Power Messages . . . . . 113
Vehicle Speed Messages . . . . . 113
Vehicle Personalization
Vehicle Personalization . . . . . . . 113
Universal Remote System
Universal Remote System . . . . 121
Universal Remote SystemProgramming . . . . . . . . . . . . . . . 121
Universal Remote System Operation . . . . . . . . . . . . . . . . . . . 123

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
Instruments and Controls 109
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 22.
High-Beam On Light
This light comes on when the
high-beam headlamps are in use.
See Headlamp High/Low-Beam
Changer 0126.
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 Controls 0125.
Cruise Control Light
This light in the Driver Information
Center (DIC) is white when the
cruise control is on and ready, and
turns green when the cruise control
is set and active.
See Cruise Control 0165.
Adaptive Cruise Control Light
This light in the Driver Information
Center (DIC) is white when the
Adaptive Cruise Control (ACC) (if
equipped) is on and ready, and

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
110 Instruments and Controls
turns green when the ACC is set
and active. SeeAdaptive Cruise
Control 0167.
Door Ajar Light
This light comes on in the Driver
Information Center (DIC) 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 96. The Info app is only available
when the ignition is on. The displays
show the status of many vehicle
systems. The controls for the DIC
are on the right steering wheel
control.
worx: Press to move up or
down in a list, or on the main view
press to cycle through the different
Info app pages.
oorp: Pressoto open
application menus on the left. Press
pto open interaction menus on the
right.
V: Press to select a menu item.
Press and hold to reset values on
certain screens, or on the main view
reset info pages to the original
setting.
Info Page Options
The info pages on the DIC can be
turned on or off through the
Options app.
1. Press
oto access the cluster
applications.
2. Press
worxto scroll to the
Options application.
3. Press
Vto select the
Options app.
4. Scroll to Info Pages and

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
112 Instruments and Controls
Oil Life :Displays an estimate of
the oil's remaining useful life.
If REMAINING OIL LIFE 99% is
displayed, that means 99% of the
current oil life remains.
When the remaining oil life is low,
the CHANGE ENGINE OIL SOON
message will appear on the display.
The oil should be changed as soon
as possible. See Engine Oil0204.
In addition to the engine oil life
system monitoring the oil life,
additional maintenance is
recommended. See Maintenance
Schedule 0276.
The Oil Life display must be reset
after each oil change. It will not
reset itself. Do not reset the Oil Life
display accidentally at any time
other than when the oil has just
been changed. It cannot be reset
accurately until the next oil change.
To reset the engine oil life system,
press and hold
Vfor several
seconds while the Oil Life display is
active. See Engine Oil Life System
0 206. Coolant Temperature :
Displays
the coolant temperature in either
degrees Celsius (°C) or degrees
Fahrenheit (°F).
Tire Pressure : Displays the
approximate pressures of all four
tires. Tire pressure is displayed in
either kilopascal (kPa) or in pounds
per square inch (psi). If the pressure
is low, the value for that tire is
shown in amber. See Tire Pressure
Monitor System 0241 and
Tire Pressure Monitor Operation
0 242.
Battery Voltage : Displays the
current battery voltage. The battery
voltage can fluctuate while viewing
this information on the DIC. This is
normal.
Speed Signs : Displays sign
information, which comes from a
roadway database in the onboard
navigation.
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

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
Instruments and Controls 121
Universal Remote
System
SeeRadio Frequency Statement
0 300.
Universal Remote System
Programming
If equipped, these buttons are in the
overhead console.
This system can replace up to three
remote control transmitters used to
activate devices such as garage
door openers, security systems, and
home automation devices. These instructions refer to a garage door
opener, but can be used for other
devices.
Do not use the Universal Remote
system with any garage door opener
that does not have the stop and
reverse feature. This includes any
garage door opener model
manufactured before April 1, 1982.
Read these instructions completely
before programming the Universal
Remote system. It may help to have
another person assist with the
programming process.
Keep the original hand-held
transmitter for use in other vehicles
as well as for future programming.
Erase the programming when
vehicle ownership is terminated.
See
“Erasing Universal Remote
System Buttons” later in this
section.
To program a garage door opener,
park outside directly in line with and
facing the garage door opener
receiver. Clear all people and
objects near the garage door. Make sure the hand-held transmitter
has a new battery for quick and
accurate transmission of the
radio-frequency signal.
Programming the Universal
Remote System
For questions or programming help,
see www.homelink.com/gm or call
1-800-355-3515. For calls placed
outside the U.S., Canada, or Puerto
Rico, international rates will apply
and may differ based on landline or
mobile phone.
Programming involves
time-sensitive actions, and may time
out causing the procedure to be
repeated.
To program up to three devices:
1. Hold the end of the hand-held transmitter about 3 to 8 cm (1
to 3 in) away from the
Universal Remote system
buttons with the indicator light
in view. The hand-held
transmitter was supplied by the
manufacturer of the garage
door opener receiver.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/11/19
150 Driving and Operating
weight of the driver, passengers,
and cargo should never exceed
the vehicle's capacity weight.
Certification Label
Label Example
A vehicle-specific Certification
label is attached to the vehicle's
center pillar (B-pillar). The label
may show the gross weight
capacity of the vehicle, called
the Gross Vehicle Weight Rating
(GVWR). The GVWR includes
the weight of the vehicle, all
occupants, fuel, and cargo.
{Warning
Things inside the vehicle can
strike and injure people in a
sudden stop or turn, or in a
crash.
.Put things in the cargo
area of the vehicle. In the
cargo area, put them as
far forward as possible.
Try to spread the weight
evenly.
.Never stack heavier
things, like suitcases,
inside the vehicle so that
some of them are above
the tops of the seats.
.Do not leave an
unsecured child restraint
in the vehicle.
.Secure loose items in the
vehicle.
(Continued)
Warning (Continued)
.Do not leave a seat
folded down unless
needed.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/11/19
Driving and Operating 155
Warning (Continued)
vehicle. Possible heater
cord and thermostat
damage could occur.
. While in use, do not let the
heater cord touch vehicle
parts or sharp edges. Never
close the hood on the
heater cord.
. Before starting the vehicle,
unplug the cord, reattach
the cover to the plug, and
securely fasten the cord.
Keep the cord away from
any moving parts.
4. Before starting the engine, be sure to unplug and store the
cord as it was before to keep it
away from moving engine
parts.
The length of time the heater should
remain plugged in depends on
several factors. Ask a dealer in the
area where you will be parking the
vehicle for the best advice on this.
Retained Accessory
Power (RAP)
Some vehicle accessories may be
used after the ignition is turned off.
The power windows and sunroof,
if equipped, will continue to work for
up to 10 minutes or until any door is
opened.
The infotainment system will
continue to work for 10 minutes,
until the driver door is opened,
or until the ignition is turned on or
placed in ACC/ACCESSORY.
Shifting Into Park
1. Hold the brake pedal down and set the parking brake. See
Electric Parking Brake 0161.
2. Move the shift lever into P (Park) by holding in the
button on the shift lever and
pushing the shift lever toward
the front of the vehicle.
3. Turn the ignition off.
Leaving the Vehicle with the
Engine Running
{Warning
It can be dangerous to leave the
vehicle with the engine running.
It could overheat and catch fire.
It is dangerous to get out of the
vehicle if the shift lever is not fully
in P (Park) with the parking brake
firmly set. The vehicle can roll.
Do not leave the vehicle when the
engine is running. If you have left
the engine running, the vehicle
can move suddenly. You or others
could be injured. To be sure the
vehicle will not move, even when
you are on fairly level ground,
always set the parking brake and
move the shift lever to P (Park).
See Shifting Into Park 0155.
If you have to leave the vehicle with
the engine running, be sure the
vehicle is in P (Park) and the
parking brake is set before you
leave it. After you have moved the

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/11/19
Driving and Operating 191
If equipped with Lane Change Alert
(LCA), the LCA detection zones that
extend back from the side of the
vehicle do not move further back
when a trailer is towed. Use caution
while changing lanes when towing a
trailer.
If equipped with Rear Cross Traffic
Alert (RCTA), use caution while
backing up when towing a trailer, as
the RCTA detection zones that
extend out from the back of the
vehicle do not move further back
when a trailer is towed.
{Warning
To prevent serious injury or death
from carbon monoxide (CO),
when towing a trailer:. Do not drive with the
liftgate, trunk/hatch,
or rear-most window open.
. Fully open the air outlets on
or under the instrument
panel.
(Continued)
Warning (Continued)
.Adjust the climate control
system to a setting that
brings in only outside air.
See “Climate Control
Systems” in the Index.
For more information about
carbon monoxide, see Engine
Exhaust 0157.
Towing a trailer requires experience.
The combination of the vehicle and
trailer is longer and not as
responsive as the vehicle itself. Get
used to the handling and braking of
the combination by driving on a
level road surface before driving on
public roads.
The trailer structure, the tires, and
the brakes must be all be rated to
carry the intended cargo.
Inadequate trailer equipment can
cause the combination to operate in
an unexpected or unsafe manner.
Before driving, inspect all trailer
hitch parts and attachments, safety
chains, electrical connectors, lamps, tires, and mirrors. See
Towing
Equipment 0195. If the trailer has
electric brakes, start the
combination moving and then
manually apply the trailer brake
controller to check the trailer brakes
work. During the trip, occasionally
check that the cargo and trailer are
secure and that the lamps and any
trailer brakes are working.
Towing with a Stability Control
System
When towing, the stability control
system might be heard. The system
reacts to vehicle movement caused
by the trailer, which mainly occurs
during cornering. This is normal
when towing heavier trailers.
Following Distance
Stay at least twice as far behind the
vehicle ahead as you would when
driving without a trailer. This can
help to avoid heavy braking and
sudden turns.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
212 Vehicle Care
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.
3. Fill the coolant surge tank with the proper mixture to the
indicated level mark.
4. With the coolant surge tank pressure cap off, start the
engine and let it run until you
can feel the upper radiator
hose getting hot. Watch out for
the engine cooling fans.
By this time, the coolant level
inside the coolant surge tank
may be lower. If the level is
lower, add more of the proper
mixture to the coolant surge
tank until the level reaches the
indicated level mark. 5. Replace the pressure cap
tightly.
6. Verify coolant level after the engine is shut off and the
coolant is cold. If necessary,
repeat coolant fill procedure
Steps 1–6.
If the coolant still is not at the
proper level when the system
cools down again, see your
dealer.
Caution
If the pressure cap is not tightly
installed, coolant loss and engine
damage may occur. Be sure the
cap is properly and tightly
secured.
Engine Overheating
There is a coolant temperature
gauge on the instrument cluster that
indicates an overheated engine
condition. See Engine Coolant
Temperature Gauge 0100. If the decision is made not to lift the
hood when this warning appears,
get service help right away. See
Roadside Assistance Program
0
294.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface.
Then check to see if the engine
cooling fans are running. If the
engine is overheating, the fans
should be running. If not, do not
continue to run the engine and have
the vehicle serviced.
Caution
Do not run the engine if there is a
leak in the engine cooling system.
This can cause a loss of all
coolant and can damage the
system and vehicle. Have any
leaks fixed right away.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
258 Vehicle Care
1. Turn the wrenchcounterclockwise to remove the
fastener.
2. Replace the fastener with the one provided in the foam.
3. Turn the wrench clockwise to tighten the fastener.
4. Replace the foam, jack and tools, and the tire.
5. Turn the retainer nut clockwise to secure the tire.
6. Place the floor cover on the wheel.
To store the compact spare tire, use
the shorter mounting bolt. The compact spare is for temporary
use only. Replace the compact
spare tire with a full-size tire as
soon as you can.
Compact Spare Tire
{Warning
Driving with more than one
compact spare tire at a time could
result in loss of braking and
handling. This could lead to a
crash and you or others could be
injured. Use only one compact
spare tire at a time.
If this vehicle has a compact spare
tire, it was fully inflated when new;
however, it can lose air over time.
Check the inflation pressure
regularly. It should be 420 kPa
(60 psi).
Stop as soon as possible and check
that the spare tire is correctly
inflated after being installed on the
vehicle. The compact spare tire is
designed for temporary use only. The vehicle will perform differently
with the spare tire installed and it is
recommended that the vehicle
speed be limited to 80 km/h
(50 mph). To conserve the tread of
the spare tire, have the standard tire
repaired or replaced as soon as
convenient and return the spare tire
to the storage area.
When using a compact spare tire,
the AWD (if equipped), ABS, and
Traction Control systems may
engage until the spare tire is
recognized by the vehicle,
especially on slippery roads. Adjust
driving to reduce possible
wheel slip.
Caution
When the compact spare is
installed, do not take the vehicle
through an automatic car wash
with guide rails. The compact
spare can get caught on the rails
which can damage the tire, wheel,
and other parts of the vehicle.