CHEVROLET BLAZER 2020 User Guide

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
10 Keys, Doors, and Windows
Keyless Access can be
programmed to unlock all doors on
the first lock/unlock press from the
driver door. Keyless Access can
also be turned off. SeeVehicle
Personalization 0137.
If equipped with memory seats, RKE
transmitters 1 and 2 are linked to
seating positions of memory 1 or 2.
See Memory Seats 045.
Keyless Unlocking/Locking from
the Driver Door
When the doors are locked and the
RKE transmitter is within 1 m (3 ft) of
the driver door handle, pressing the
lock/unlock button on the driver door
handle will unlock the driver door.
If the lock/unlock button is pressed
again within five seconds, all
passenger doors will unlock.
Driver Shown, Passenger Similar
Pressing the lock/unlock button will
cause all doors to lock if any of the
following occur:
. It has been no more than
five seconds since the first lock/
unlock button press.
. Two lock/unlock button presses
were used to unlock all doors.
. Any vehicle door has opened
and all doors are now closed. Keyless Unlocking/Locking from
Passenger Doors
When the doors are locked and the
RKE transmitter is within 1 m (3 ft) of
the door handle, pressing the lock/
unlock button on that door handle
will unlock all doors. Pressing the
lock/unlock button will cause all
doors to lock if any of the following
occur:
.
The lock/unlock button was used
to unlock all doors.
. Any vehicle door has opened
and all doors are now closed.
Disable/Enable Keyless Unlocking
of Exterior Door Handles and
Liftgate
If equipped, keyless unlocking of the
exterior door handles and liftgate
can be disabled and enabled.
Disabling Keyless Unlocking:
With the vehicle off, press and hold
QandKon the RKE transmitter at
the same time for approximately
three seconds. The turn signal
lamps will flash four times quickly to
indicate access is disabled. Using

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
Keys, Doors, and Windows 11
any exterior handle to unlock the
doors or open the liftgate will cause
the turn signal lamps to flash four
times quickly, indicating access is
disabled. If disabled, disarm the
alarm system before starting the
vehicle.
Disabling Keyless Unlocking may
also be configured underVehicle
Personalization 0137.
Enabling Keyless Unlocking:
With the vehicle off, press and hold
QandKon the RKE transmitter at
the same time for approximately
three seconds. The turn signal
lamps will flash twice quickly to
indicate access is enabled.
Enabling Keyless Unlocking may
also be configured under Vehicle
Personalization 0137.
Passive Locking
This vehicle will lock several
seconds after all doors are closed if
the vehicle is off and at least one
RKE transmitter has been removed
or none remain in the interior. If other electronic devices interfere
with the RKE transmitter signal, the
vehicle may not detect the RKE
transmitter inside the vehicle.
If passive locking is enabled, the
doors may lock with the RKE
transmitter inside the vehicle. Do
not leave the RKE transmitter in an
unattended vehicle.
To customize the doors to
automatically lock when exiting the
vehicle, see
“Remote Lock, Unlock,
Start” under Vehicle Personalization
0 137.
Temporary Disable of Passive
Locking
Temporarily disable passive locking
by pressing and holding
Kon the
interior door switch with a door open
for at least four seconds, or until
three chimes are heard. Passive
locking will then remain disabled
until
Qon the interior door is
pressed, or until the vehicle is
turned on. Remote Left in Vehicle Alert
When the vehicle is turned off and
an RKE transmitter is left in the
vehicle, the horn will chirp three
times after all doors are closed. To
turn on or off, see
Vehicle
Personalization 0137.
Remote No Longer in Vehicle Alert
If the vehicle is on with a door open,
and then all doors are closed, the
vehicle will check for RKE
transmitters inside. If an RKE
transmitter is not detected, the
Driver Information Center (DIC) will
display NO REMOTE DETECTED
and the horn will chirp three times.
This occurs only once each time the
vehicle is driven. See Vehicle
Personalization 0137.
Keyless Liftgate Opening
Press the touch pad in the liftgate
handle to open the liftgate if the
RKE transmitter is within 1 m (3 ft).
Key Access
To access a vehicle with a weak
transmitter battery, see Door Locks
0 17.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
12 Keys, Doors, and Windows
Programming Transmitters to
the Vehicle
Only RKE transmitters programmed
to the vehicle will work. If a
transmitter is lost or stolen, a
replacement can be purchased and
programmed through your dealer.
The vehicle can be reprogrammed
so that lost or stolen transmitters no
longer work. Each vehicle can have
up to eight transmitters matched
to it.
Programming with Recognized
Transmitters
A new transmitter can be
programmed to the vehicle when
there are two recognized
transmitters.
To program, the vehicle must be off
and all of the transmitters, both
currently recognized and new, must
be with you.1. Remove the key lock cylinder cap on the driver door handle.
See Door Locks 017. Place
the two recognized transmitters
in the cupholder. 2. Insert the vehicle key of the
transmitter into the key lock
cylinder on the driver door
handle and turn the key,
counterclockwise, to the unlock
position five times within
10 seconds.
The DIC displays READY FOR
REMOTE #3, 4, 5, ETC.
3. Place the new transmitter intothe front cupholder.
4. Press ENGINE START/STOP. When the transmitter is
learned, the DIC display will
show that it is ready to program
the next transmitter. 5. Remove the transmitter from
the front cupholder and press
the transmitter
KorQbutton.
To program additional
transmitters, repeat Steps 3–5.
When all additional transmitters
are programmed, press and
hold ENGINE START/STOP for
12 seconds to exit
programming mode.
6. Put the key back into the transmitter.
7. Replace the key lock cylinder cap. See Door Locks 017.
Programming without Recognized
Transmitters
If two currently recognized
transmitters are not available, follow
this procedure to program up to
eight transmitters. This feature is
not available in Canada. This
procedure will take approximately
30 minutes to complete. The vehicle
must be off and all of the
transmitters you wish to program
must be with you.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
Keys, Doors, and Windows 13
1. Remove the key lock cylindercap on the driver door handle.
See Door Locks 017. Insert
the vehicle key of the
transmitter into the key lock
cylinder on the driver door
handle and turn the key,
counterclockwise, to the unlock
position five times within
10 seconds.
The DIC displays REMOTE
LEARN PENDING,
PLEASE WAIT.
2. Wait for 10 minutes until the DIC displays PRESS ENGINE
START BUTTON TO LEARN
and then press ENGINE
START/STOP.
The DIC will again display
REMOTE LEARN PENDING,
PLEASE WAIT.
3. Repeat Step 2 two additional times. After the third time all
previously known transmitters
will no longer work with the
vehicle. Remaining transmitters
can be relearned during the
next steps. The DIC should now display
READY FOR REMOTE # 1.
4. Place the new transmitter into
the front cupholder.
5. Press ENGINE START/STOP. When the transmitter is
learned, the DIC display will
show that it is ready to program
the next transmitter.
6. Remove the transmitter from the front cupholder and press
the transmitter
KorQbutton.
To program additional
transmitters, repeat Steps 4–6. When all additional transmitters
are programmed, press and
hold ENGINE START/STOP for
12 seconds to exit
programming mode.
7. Put the key back into the transmitter.
8. Replace the key lock cylinder cap. See Door Locks 017.
Starting the Vehicle with a Low
Transmitter Battery
When the vehicle is started, if the
transmitter battery is weak, the DIC
may display NO REMOTE
DETECTED or NO REMOTE KEY
WAS DETECTED PLACE KEY IN
TRANSMITTER POCKET THEN
START YOUR VEHICLE. The DIC
may then display REPLACE
BATTERY IN REMOTE KEY.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
14 Keys, Doors, and Windows
To start the vehicle:
1. Place the transmitter in thefront cupholder.
2. With the vehicle in P (Park) or N (Neutral), press the brake
pedal and ENGINE
START/STOP.
Replace the transmitter battery
as soon as possible.
Battery Replacement
{Warning
Never allow children to play with
the RKE transmitter. The
transmitter contains a small
battery, which can be a choking
hazard. If swallowed, internal
burns can occur, resulting in
severe injury or death. Seek
medical attention immediately if a
battery is swallowed.
{Warning
To avoid personal injury, do not
touch metal surfaces on the RKE
transmitter when it has been
exposed to extreme heat. These
surfaces can be hot to the touch
at temperatures above 59 °C
(138 °F).
Caution
When replacing the battery, do
not touch any of the circuitry on
the transmitter. Static from your
body could damage the
transmitter.
Caution
Always replace the battery with
the correct type. Replacing the
battery with an incorrect type
could potentially create a risk of
battery explosion. Dispose of
used batteries according to
instructions and local laws. Do
not attempt to burn, crush, or cut
the used battery, and avoid
exposing the battery to
environments with extremely low
air pressures or high
temperatures.
Replace the battery if the DIC
displays REPLACE BATTERY IN
REMOTE KEY.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
Keys, Doors, and Windows 15
The battery is not rechargeable. To
replace the battery:
1. Press the button on the side ofthe RKE transmitter and pull
the key out. Never pull the key
out without pressing the button.
2. Separate the two halves of the transmitter using a flat tool
inserted into the area near the
key slot.
3. Remove the battery by pushingon the battery and sliding it
toward the bottom of the
transmitter. Do not use a metal
object.
4. Insert the new battery, positive side facing the back cover.
Push the battery down until it is
held in place. Replace with a
CR2032 or equivalent battery.
5. Snap the battery cover back on to the transmitter.
6. Reinsert the key.
Remote Vehicle Start
If equipped, this feature allows the
engine to be started from outside of
the vehicle.
/: This button will be on the RKE
transmitter if the vehicle has remote
start.
The climate control system will use
the previous settings during a
remote start. The rear defog may
come on during a remote start
based on cold ambient conditions.
The rear fog indicator light does not
come on during a remote start.
If the vehicle has auto heated or
ventilated seats, they may come on
during a remote start. See Heated
and Ventilated Front Seats 047.
If equipped with a remote start
heated steering wheel, it may come
on during a remote start when it is
cold outside, if enabled. See Heated
Steering Wheel 099 and
Vehicle Personalization 0137.
Laws in some local communities
may restrict the use of remote
starters. For example, some laws

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
16 Keys, Doors, and Windows
may require a person using remote
start to have the vehicle in view.
Check local regulations for any
requirements.
Do not use the remote start feature
if the vehicle is low on fuel. The
vehicle could run out of fuel.
Other conditions can affect the
performance of the transmitter. See
Remote Keyless Entry (RKE)
System08.
Starting the Engine Using Remote
Start
1. Press and release
Qon the
RKE transmitter.
2. Immediately press and hold
/
for at least four seconds or until
the turn signal lamps flash. The
turn signal lamps flashing
confirms the request to remote
start the vehicle has been
received.
During the remote start the
doors will be locked and the
parking lamps will remain on as
long as the engine is running. The engine will shut off after
15 minutes unless a time
extension is done or the
vehicle is started.
3. With the RKE transmitter in the vehicle, press the brake pedal
and start the vehicle to drive.
Extending Engine Run Time
The engine run time can also be
extended by another 15 minutes,
if during the first 15 minutes
Steps 1 and 2 are repeated while
the engine is still running. An
extension can be requested
30 seconds after starting. This
provides a total of 30 minutes.
The remote start can only be
extended once.
When the remote start is extended,
the second 15-minute period is
added on to the first 15 minutes for
a total of 30 minutes.
A maximum of two remote starts,
or a remote start with an extension,
are allowed between ignition cycles. The vehicle must be started
normally before the remote start
procedure can be used again.
Canceling a Remote Start
To cancel a remote start, do any of
the following:
.
Press and hold
/until the
parking lamps turn off.
. Turn on the hazard warning
flashers.
. Turn the vehicle on and then off.
Conditions in Which Remote Start
Will Not Work
The remote start will not operate if
any of the following occur:
. An RKE transmitter is in the
vehicle.
. The hood is not closed.
. The ignition is in any mode other
than off.
. The hazard warning flashers
are on.
. There is an emission control
system malfunction.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
Keys, Doors, and Windows 17
.The engine coolant temperature
is too high.
. The oil pressure is low.
. Two remote vehicle starts or a
start with an extension have
already been used.
. The vehicle is not in P (Park).
Door Locks
{Warning
Unlocked doors can be
dangerous.
. Passengers, especially
children, can easily open
the doors and fall out of a
moving vehicle. The doors
can be unlocked and
opened while the vehicle is
moving. The chance of
being thrown out of the
vehicle in a crash is
increased if the doors are
not locked. So, all
passengers should wear
(Continued)
Warning (Continued)
seat belts properly and the
doors should be locked
whenever the vehicle is
driven.
. Young children who get into
unlocked vehicles may be
unable to get out. A child
can be overcome by
extreme heat and can suffer
permanent injuries or even
death from heat stroke.
Always lock the vehicle
whenever leaving it.
. Outsiders can easily enter
through an unlocked door
when you slow down or stop
the vehicle. Locking the
doors can help prevent this
from happening.
To lock or unlock the doors from the
outside:
. Press
QorKon the Remote
Keyless Entry (RKE) transmitter.
See Remote Keyless Entry
(RKE) System Operation 08. .
In the case of a dead battery,
use the key in the driver door.
The key lock cylinder is covered
with a cap.
To lock or unlock the doors from the
inside:
. Press
QorKon the power door
lock switch.
. Push down on a door lock knob
to lock a door.
. Pull the door handle once to
unlock the door. Pull the handle
again to unlatch it.
Keyless Access

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
18 Keys, Doors, and Windows
The RKE transmitter must be within
1 m (3 ft) of the liftgate or door
being opened. Press the button on
the door handle to unlock. See
“Keyless Access Operation”in
Remote Keyless Entry (RKE)
System Operation 08.
Driver Door Key Lock Cylinder
Access (In Case of Dead
Battery)
To access the driver door key lock
cylinder:
1. Pull the door handle (1) to the open position and hold it open
until cap removal is complete. 2. Insert the key into the slot (3)
on the bottom of the cap (2)
and lift the key upward.
3. Move the cap (2) rearward and remove.
4. Use the key in the cylinder.
To replace the cap: 1. Pull the door handle (1) to the open position and hold it open
until cap installation is
complete.
2. Insert the two tabs (6) at theback of the cap between the
seal (5) and the metal base (4).3. Slide the cap forward andpress the forward edge to
install the cap in place.
4. Release the door handle.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
Keys, Doors, and Windows 19
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. The
indicator light in the switch will
illuminate when locked.
K: Press to unlock the doors.
Delayed Locking
This feature delays the locking of
the doors until five seconds after all
doors are closed.
Delayed locking can only be turned
on when the Open Door
Anti-Lockout feature has been
turned off. When
Qis pressed on the power
door lock switch while the door is
open, a chime will sound three
times indicating delayed locking is
active.
The doors will lock automatically
five seconds after all doors are
closed. If a door is reopened before
that time, the five-second timer will
reset when all doors are closed
again.
Press
Qon the door lock switch
again or press
Qon the RKE
transmitter to lock the doors
immediately.
This feature can also be
programmed. See Vehicle
Personalization 0137.
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