2020 CHEVROLET IMPALA ECU

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
Keys, Doors, and Windows 7
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Remote Keyless Entry (RKE)System . . . . . . . . . . . . . . . . . . . . . . . . 8
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . . . 8
Remote Vehicle Start . . . . . . . . . . 14
Door Locks . . . . . . . . . . . . . . . . . . . . 16
Power Door Locks . . . . . . . . . . . . . 18
Delayed Locking . . . . . . . . . . . . . . . 18
Automatic Door Locks . . . . . . . . . 18
Lockout Protection . . . . . . . . . . . . . 19
Safety Locks . . . . . . . . . . . . . . . . . . . 19
Doors
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . 21
Vehicle Alarm System . . . . . . . . . 21
Immobilizer . . . . . . . . . . . . . . . . . . . . 22
Immobilizer Operation . . . . . . . . . 22
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . 23
Power Mirrors . . . . . . . . . . . . . . . . . . 24 Folding Mirrors . . . . . . . . . . . . . . . . . 24
Heated Mirrors . . . . . . . . . . . . . . . . . 24
Automatic Dimming Mirror . . . . . 24
Reverse Tilt Mirrors . . . . . . . . . . . . 24
Interior Mirrors
Interior Rearview Mirrors . . . . . . . 25
Manual Rearview Mirror . . . . . . . . 25
Automatic Dimming Rearview
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . 25
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . 25
Power Windows . . . . . . . . . . . . . . . 26
Sun Visors . . . . . . . . . . . . . . . . . . . . . 27
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 28
Keys and Locks
Keys
{Warning
Leaving children in a vehicle with
a Remote Keyless Entry (RKE)
transmitter is dangerous and
children or others could be
seriously injured or killed. They
could operate the power windows
or other controls or make the
vehicle move. The windows will
function with the RKE transmitter
in the vehicle, and children or
others could be caught in the path
of a closing window. Do not leave
children in a vehicle with an RKE
transmitter.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
18 Keys, Doors, and Windows
3. Slide the cap forward andpress the forward edge to
install the cap in place.
4. Release the door handle.
5. Check that the cap is secure.
Free-Turning Locks
The door key lock cylinder turns
freely when either the wrong key is
used, or the correct key is not fully
inserted. The free-turning door lock
feature prevents the lock from being
forced open. To reset the lock, turn
it to the vertical position with the
correct key fully inserted. Remove
the key and insert it again. If this
does not reset the lock, turn the key
halfway around in the cylinder and
repeat the reset procedure.Power Door Locks
Q: Press to lock the doors.
K:Press to unlock the doors.
Delayed Locking
This feature delays the locking of
the doors until five seconds after all
doors are closed.
This feature is activated through
vehicle personalization. See Vehicle
Personalization 0113. Delayed locking can only be turned
on when the Unlocked Door Anti
Lock Out feature has been
turned off.
When delayed locking is active and
Qis pressed on the door lock
switch while the door is open, a
chime will sound three times.
When all the doors are closed, the
doors will lock automatically after
five seconds. If a door is reopened
before five seconds have elapsed,
the five-second timer will reset once
all the doors are closed again.
Press
Qon the door lock switch
again or press
Qon the RKE
transmitter to override this feature
and lock the doors immediately.
Automatic Door Locks
The doors will lock automatically
when all doors are closed, the
ignition is on, and the vehicle is
shifted out of P (Park).
If a vehicle door is unlocked and
then opened and closed, the doors
will lock either when your foot is

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
20 Keys, Doors, and Windows
Doors
Trunk
{Warning
Exhaust gases can enter the
vehicle if it is driven with the
liftgate, hatch/trunk open, or with
any objects that pass through the
seal between the body and the
hatch/trunk or liftgate. Engine
exhaust contains carbon
monoxide (CO) which cannot be
seen or smelled. It can cause
unconsciousness and even death.
If the vehicle must be driven with
the liftgate or hatch/trunk open:. Close all of the windows.
. Fully open the air outlets on
or under the instrument
panel.
. Adjust the climate control
system to a setting that
brings in only outside air
(Continued)
Warning (Continued)
and set the fan speed to the
highest setting. See
“Climate Control Systems”
in the Index.
. If the vehicle is equipped
with a power liftgate, disable
the power liftgate function.
For more information about
carbon monoxide, see Engine
Exhaust 0157.
To open the trunk: .
Press
|with the transmission
in P (Park).
. Press and hold
Yon the RKE
transmitter.
. If equipped, press the touch pad
on the underside of the trunk lid
after unlocking all doors.
The RKE transmitter must be within
1 m (3 ft) of the trunk. Press the
touch pad on the underside of the
trunk lid and lift to open. See
Remote Keyless Entry (RKE)
System Operation 08.
When closing the trunk, use the
pull cup.
Emergency Trunk Release
Handle
Caution
Do not use the emergency trunk
release handle as a tie-down or
anchor point when securing items
in the trunk as it could damage
the handle.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
Keys, Doors, and Windows 21
If equipped, there is a
glow-in-the-dark emergency trunk
release handle on the trunk lid. This
handle will glow following exposure
to light. Pull the release handle to
open the trunk from the inside.
After use, return to the stored
position.
Vehicle Security
This vehicle has theft-deterrent
features; however, they do not make
the vehicle impossible to steal.
Vehicle Alarm System
This vehicle has an anti-theft alarm
system.
The indicator light, on the
instrument panel near the
windshield, indicates the status of
the system:
Off :Alarm system is disarmed. On Solid :
Vehicle is secured
during the delay to arm the system.
Fast Flash : Vehicle is unsecured.
A door, the hood, or the trunk
is open.
Slow Flash : Alarm system is
armed.
Arming the Alarm System
1. Close the trunk and the hood. Turn off the vehicle.
2. Lock the vehicle in one of three ways:
.Use the RKE transmitter.
. Use the Keyless Access
system.
. With a door open, press the
inside
Q.
3. After 30 seconds the alarm system will arm, and the
indicator light will begin to
slowly flash indicating the
alarm system is operating.
Pressing
Qon the RKE
transmitter a second time will

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
22 Keys, Doors, and Windows
bypass the 30-second delay
and immediately arm the alarm
system.
If the driver door is opened without
first unlocking with the RKE
transmitter, the lights will flash to
indicate pre-alarm. If the vehicle is
not started, or the door is not
unlocked by pressing
Kon the RKE
transmitter during the 10–second
pre-alarm, the alarm will be
activated.
If a door, the hood, or the trunk is
opened without first disarming the
system, the turn signals will flash for
about 30 seconds. The alarm
system will then re-arm to monitor
for the next unauthorized event.
The theft-deterrent alarm system will
not arm if the doors are locked with
the key.
Disarming the Alarm System
To disarm the alarm system or turn
off the alarm if it has been activated:
. Press
Kon the RKE transmitter. .
Unlock the vehicle using the
Keyless Access system.
. Start the vehicle.
To avoid setting off the alarm by
accident:
. Lock the vehicle after all
occupants have left the vehicle
and all doors are closed.
. Always unlock a door with the
RKE transmitter or use the
Keyless Access system.
Unlocking the driver door with the
key will not disarm the system or
turn off the alarm.
How to Detect a Tamper
Condition
IfKis pressed on the transmitter
and the lights flash three times, an
alarm occurred previously while the
alarm system was armed.
If the alarm has been activated, a
message will appear on the Driver
Information Center (DIC).
Immobilizer
See Radio Frequency Statement
0 300.
Immobilizer Operation
This vehicle has a passive
theft-deterrent system.
The system does not have to be
manually armed or disarmed.
The vehicle is automatically
immobilized when the vehicle is
turned off.
The immobilization system is
disarmed when ENGINE START/
STOP is pressed and a valid RKE
transmitter is found in the vehicle.
The security light in the instrument
cluster comes on when there is a
problem with arming or disarming
the theft-deterrent system.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
Keys, Doors, and Windows 23
The system has one or more
transmitters matched to an
immobilizer control unit in your
vehicle. Only a correctly matched
transmitter will start the vehicle.
If the transmitter is ever damaged,
you may not be able to start your
vehicle.
When trying to start the vehicle, the
security light comes on briefly when
the ignition is turned on.
If the engine does not start and the
security light stays on, there is a
problem with the system. Turn the
vehicle off and try again.
If the RKE transmitter appears to be
undamaged, try another transmitter.
Or, you may try placing the
transmitter in the transmitter pocket
in the center console. See“Starting
the Vehicle with a Low Transmitter
Battery or Wireless Interference”
under Remote Keyless Entry (RKE)
System Operation 08.
If the engine does not start with the
other transmitter or when the
transmitter is in the pocket in the
center console, your vehicle needs service. See your dealer who can
service the theft-deterrent system
and have a new transmitter
programmed to the vehicle.
Do not leave the transmitter or
device that disarms or deactivates
the theft-deterrent system in the
vehicle.Exterior Mirrors
Convex Mirrors
{Warning
A convex mirror can make things,
like other vehicles, look farther
away than they really are. If you
cut too sharply into the right lane,
you could hit a vehicle on the
right. Check the inside mirror or
glance over your shoulder before
changing lanes.
The passenger side mirror is convex
shaped. A convex mirror's surface is
curved so more can be seen from
the driver seat.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
30 Seats and Restraints
Seats and
Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . . . 31
Front Seats
Seat Adjustment . . . . . . . . . . . . . . . 34
Power Seat Adjustment . . . . . . . . 35
Lumbar Adjustment . . . . . . . . . . . . 36
Reclining Seatbacks . . . . . . . . . . . 36
Memory Seats . . . . . . . . . . . . . . . . . 37
Heated and Ventilated FrontSeats . . . . . . . . . . . . . . . . . . . . . . . . . 40
Rear Seats
Rear Seats . . . . . . . . . . . . . . . . . . . . 42
Seat Belts
Seat Belts . . . . . . . . . . . . . . . . . . . . . 43
How to Wear Seat BeltsProperly . . . . . . . . . . . . . . . . . . . . . . 44
Lap-Shoulder Belt . . . . . . . . . . . . . 46
Seat Belt Use During Pregnancy . . . . . . . . . . . . . . . . . . . . 49
Seat Belt Extender . . . . . . . . . . . . . 50
Safety System Check . . . . . . . . . . 50
Seat Belt Care . . . . . . . . . . . . . . . . . 50 Replacing Seat Belt System
Parts after a Crash . . . . . . . . . . . 51
Airbag System
Airbag System . . . . . . . . . . . . . . . . . 51
Where Are the Airbags? . . . . . . . 53
When Should an AirbagInflate? . . . . . . . . . . . . . . . . . . . . . . . 54
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . 55
How Does an Airbag Restrain? . . . . . . . . . . . . . . . . . . . . . 56
What Will You See after an Airbag Inflates? . . . . . . . . . . . . . . 56
Passenger Sensing System . . . 57
Servicing the Airbag-Equipped Vehicle . . . . . . . . . . . . . . . . . . . . . . . 62
Adding Equipment to the Airbag-Equipped Vehicle . . . . . 62
Airbag System Check . . . . . . . . . . 63
Replacing Airbag System Parts after a Crash . . . . . . . . . . . . . . . . . 63
Child Restraints
Older Children . . . . . . . . . . . . . . . . . 64
Infants and Young Children . . . . 65
Child Restraint Systems . . . . . . . 68
Where to Put the Restraint . . . . . 69
Lower Anchors and Tethers forChildren (LATCH System) . . . . 70 Replacing LATCH System Parts
After a Crash . . . . . . . . . . . . . . . . . 78
Securing Child Restraints (With the Seat Belt in the
Rear Seat) . . . . . . . . . . . . . . . . . . . 78
Securing Child Restraints (With the Seat Belt in the
Front Seat) . . . . . . . . . . . . . . . . . . . 80

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
Seats and Restraints 33
On some models, the rear head
restraints can be folded forward to
allow for better visibility when the
rear seat is unoccupied. To fold the
head restraint, grasp the top of the
head restraint and pull the head
restraint forward and down until it
locks in place.
When an occupant or child restraint
is in the seat, always return the
head restraint to the full upright
position. Push down on the head
restraint to release the locking
mechanism. Then, pull the head
restraint up and push it rearward
until it is in the full upright position.Always adjust the head restraint so
that the top of the restraint is at the
same height as the top of the
occupant's head.
The rear seat outboard head
restraints are not intended to be
removed. If removal is required see
your dealer for assistance with
removal. In the event of an
emergency, the following can be
used as removal and installation
instructions. Store the removed
head restraints in a secure place.
Reinstall the head restraints before
the seating position is occupied.
Head Restraint Removal and
Reinstallation
To remove the head restraint:
1. Partially fold the seatback forward. See Rear Seats042
for additional information.
2. Press both buttons on the head
restraint posts at the same
time, and pull up on the head
restraint.
3. Store the head restraint in a secure place.
{Warning
With head restraints that are not
installed and adjusted properly,
there is a greater chance that
occupants will suffer a neck/
spinal injury in a crash. Do not
(Continued)