2020 CHEVROLET BLAZER climate control

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
ContentsIntroduction . . . . . . . . . . . . . . . . . . . . . . 2
Keys, Doors, and Windows . . . . . . 7
Seats and Restraints . . . . . . . . . . . 39
Storage . . . . . . . . . . . . . . . . . . . . . . . . . 91
Instruments and Controls . . . . . . . 98
Lighting . . . . . . . . . . . . . . . . . . . . . . . 145
Infotainment System . . . . . . . . . . 154
Climate Controls . . . . . . . . . . . . . . 155
Driving and Operating . . . . . . . . . 161
Vehicle Care . . . . . . . . . . . . . . . . . . 243
Service and Maintenance . . . . . 337
Technical Data . . . . . . . . . . . . . . . . 351
Customer Information . . . . . . . . . 355
Reporting Safety Defects . . . . . . 365
OnStar . . . . . . . . . . . . . . . . . . . . . . . . 369
Connected Services . . . . . . . . . . . 375
Index . . . . . . . . . . . . . . . . . . . . 378

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
6 Introduction
1.Air Vents 0159.
2. Turn Signal Lever. See Turn
and Lane-Change Signals
0 149.
3. Instrument Cluster (Base and
Midlevel) 0108 or
Instrument Cluster (Uplevel)
0 112.
4. Windshield Wiper/Washer
0100.
Rear Window Wiper/Washer
0 101.
5. ENGINE START/STOP Button. See Ignition Positions 0178.
6. Light Sensor. See Automatic
Headlamp System 0148.
7. Infotainment 0154.
8. Glove Box Button. See Glove
Box 091.
Traction Control/Electronic
Stability Control 0194.
9. Heated and Ventilated Front
Seats 047 (If Equipped).
10. Dual Automatic Climate Control
System 0155. 11. USB Ports (If Equipped). See
the infotainment manual.
12. Wireless Charging 0104 (If
Equipped).
13. Shift Lever. See Automatic
Transmission 0187 (If
Equipped).
14. All-Wheel Drive 0191 (If
Equipped).
Driver Mode Control 0196 (If
Equipped).
Park Assist Button. See
Assistance Systems for
Parking or Backing 0210 (If
Equipped).
Lane Keep Assist (LKA) 0223
(If Equipped).
15. Hazard Warning Flashers
0149.
Stop/Start Disable Switch. See
Stop/Start System 0181.
16. Steering Wheel Controls 099
(If Equipped). Driver Information Center (DIC)
Buttons. See
Driver Information
Center (DIC) (Base and
Midlevel) 0129 or
Driver Information Center (DIC)
(Uplevel) 0133.
17. Horn 0100.
18. Steering Wheel Adjustment
099 (Out of View).
19. Cruise Control 0198.
Adaptive Cruise Control 0200
(If Equipped).
Forward Collision Alert (FCA)
System 0215 (If Equipped).
Heated Steering Wheel 099 (If
Equipped).
20. Hood Release. See Hood
0 246.
21. Electric Parking Brake 0192.
22. Exterior Lamp Controls 0145.
Instrument Panel Illumination
Control 0150.

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
Keys, Doors, and Windows 21
or by using the Remote
Keyless Entry (RKE)
transmitter.
2. Open the door from the outside.
When the safety lock is enabled,
adults and older children will not be
able to open the rear door from the
inside. Cancel the safety locks to
enable the doors to open from the
inside.
To cancel the safety lock: 1. Unlock the door and open it from the outside.
2. Move the lever up to unlock. Do the same for the other door.Doors
Liftgate
{Warning
Exhaust gases can enter the
vehicle if it is driven with the
liftgate or trunk/hatch open,
or with any objects that pass
through the seal between the
body and the trunk/hatch 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 trunk/hatch open:
. Close all of the windows.
. 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
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.
See Engine Exhaust 0186.
Caution
To avoid damage to the liftgate or
liftgate glass, make sure the area
above and behind the liftgate is
clear before opening it.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
Keys, Doors, and Windows 31
Heated Mirrors
If equipped, the heated outside
mirrors turn on when the rear
window defogger is on and help to
clear fog or frost from the surface of
the mirrors.
1:This button is on the climate
control panel.
See “Rear Window Defogger” under
Dual Automatic Climate Control
System 0155.
Automatic Dimming
Mirror
The vehicle has an automatic
dimming outside mirror on the driver
side. The mirror will adjust for the
glare of headlamps behind you.
Reverse Tilt Mirrors
If equipped with reverse tilt mirrors
and memory seats, the passenger
and/or driver mirror tilts to a
preselected position when the
vehicle is in R (Reverse). This
allows the curb to be seen when
parallel parking.
The mirror(s) may move from their
tilted position when:
.
The vehicle is shifted out of
R (Reverse), or remains in
R (Reverse) for about
30 seconds.
. The vehicle is turned off.
. The vehicle is driven in
R (Reverse) above a set speed.
To turn this feature on or off, see
Vehicle Personalization 0137.
Interior Mirrors
Interior Rearview Mirrors
Adjust the rearview mirror for a clear
view of the area behind your
vehicle.
Do not spray glass cleaner directly
on the mirror. Use a soft towel
dampened with water.
Manual Rearview Mirror
If equipped, push the tab forward for
daytime use and pull it rearward for
nighttime use to avoid glare of the
headlamps from behind.
Automatic Dimming
Rearview Mirror
If equipped, automatic dimming
reduces the glare of headlamps
from behind. The dimming feature
comes on when the vehicle is
started.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
48 Seats and Restraints
Warning (Continued)
time. Do not place anything on
the seat that insulates against
heat, such as a blanket, cushion,
cover, or similar item. This may
cause the seat heater to
overheat. An overheated seat
heater may cause a burn or may
damage the seat.
Heated and Ventilated Seat
Buttons Shown, Heated Seat Buttons Similar If equipped, the buttons are near the
climate controls on the center stack.
To operate, the engine must be
running.
Press
LorMto heat the driver or
passenger seat.
Press
{orC, if equipped, to
ventilate the driver or passenger
seat. A ventilated seat has a fan
that pulls or pushes air through the
seat. The air is not cooled.
When this feature is off, the heated
and ventilated seat symbols on the
buttons are white. When a heated
seat is turned on, the symbol turns
red. When a ventilated seat is
turned on, the symbol turns blue.
Press the button once for the
highest setting. With each press of
the button, the seat will change to
the next lower setting, and then to
the off setting. The indicator lights
below the buttons indicate three for
the highest setting and one for the
lowest. If the heated seats are on
high, the level may automatically be
lowered after approximately
30 minutes. The passenger seat may take
longer to heat up.
Auto Heated and Ventilated Seats
When the vehicle is on, this feature
will automatically activate the
heated or ventilated seats at the
level required by the vehicle’s
interior temperature.
The active high, medium, low, or off
heated or ventilated seat level will
be indicated by the manual heated
or ventilated seat buttons on the
center stack. Use the manual
heated or ventilated seat buttons on
the center stack to turn auto heated
or ventilated seats off. If the
passenger seat is unoccupied, the
auto heated or ventilated seats
feature will not activate that seat.
The auto heated or ventilated seats
feature can be programmed to
always be enabled when the vehicle
is on.
See
Vehicle Personalization 0137.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
Instruments and Controls 137
Vehicle
Personalization
The following are all possible
vehicle personalization features.
Depending on the vehicle, some
may not be available.
For System, Apps, and Personal
features and functions, see
“Settings”in the infotainment
manual.
To access the vehicle
personalization menu:
1. Touch the Settings icon on the Home Page of the infotainment
display.
2. Touch Vehicle to display a list of available options.
3. Touch to select the desired feature setting.
4. Touch
9orRto turn a feature
off or on.
5. Touch
zto go to the top level
of the Settings menu. The menu may contain the
following:
Rear Seat Reminder
This allows for a chime and a
message when the rear door has
been opened before or during
operation of the vehicle.
Touch Off or On.
Climate and Air Quality
Touch and the following may
display:
.
Auto Fan Speed
. Auto Cooled Seats
. Auto Heated Seats
. Auto Defog
. Auto Rear Defog
Auto Fan Speed
This setting specifies the amount of
airflow when the climate control fan
setting is Auto Fan.
Touch Low, Medium, or High. Auto Cooled Seats
When enabled, this feature will
automatically activate ventilated
seats at the level required by the
interior temperature. See
Heated
and Ventilated Front Seats 047.
Touch Off or On.
Auto Heated Seats
When enabled, this feature will
automatically activate the heated
seats at the level required by the
interior temperature. See Heated
and Ventilated Front Seats 047.
Touch Off or On.
Auto Defog
This setting automatically turns the
front defogger on when the engine
is started.
Touch Off or On.
Auto Rear Defog
This setting automatically turns the
rear defogger on when the engine is
started.
Touch Off or On.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13557845) - 2020 - CRC - 3/24/20
152 Lighting
door is opened after the ignition is
turned off. The dome lamp comes
on after the ignition is turned off.
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 Personalization0137.
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 battery voltage
and charging message displays. It is
recommended that the driver reduce
the electrical loads as much as
possible. See
Driver Information
Center (DIC) (Base and Midlevel)
0 129 or
Driver Information Center (DIC)
(Uplevel) 0133.Battery Power Protection
This feature helps prevent the
battery from being drained, if the
interior courtesy lamps or reading
lamps are accidentally left on. If any
of these lamps are left on, they
automatically turn off after
10 minutes, if the ignition is off. The
lamps will not come back on again
until one of the following occurs:
.
The ignition is turned on.
. The doors are closed and then
re-opened.