fuel CHEVROLET BLAZER 2021 Owner's Manual

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608203) - 2021 - CRC - 10/29/20
Keys, Doors, and Windows 13
1. Press the button on the side of the RKEtransmitter 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 pushing on thebattery 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
0 40.
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 083
and
Vehicle Personalization 0113.
Laws in some local communities may restrict
the use of remote starters. For example,
some laws 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.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608203) - 2021 - CRC - 10/29/20
Keys, Doors, and Windows 29
.The camera’s mounting on the vehicle has
been damaged, and/or the position or the
mounting angle of the camera has
changed.
Windows{
Warning
Never leave a child, a helpless adult, or a
pet alone in a vehicle, especially with the
windows closed in warm or hot weather.
They can be overcome by the extreme
heat and suffer permanent injuries or
even death from heat stroke.
The vehicle aerodynamics are designed to
improve fuel economy performance. This
may result in a pulsing sound when one
window is down and the other three are up.
To reduce the sound, open another window
or the sunroof, if equipped.
Power Windows
{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.
The power windows work when the ignition
is on, in ACC/ACCESSORY, or when Retained
Accessory Power (RAP) is active. See
Retained Accessory Power (RAP) 0205.
Using the window switch, press to open or
pull to close the window.
The windows may be temporarily disabled if
they are used repeatedly within a
short time.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608203) - 2021 - CRC - 10/29/20
54 Seats and Restraints
In any particular crash, no one can say
whether an airbag should have inflated
simply because of the vehicle damage or
repair costs.
What Makes an Airbag Inflate?
In a deployment event, the sensing system
sends an electrical signal triggering a release
of gas from the inflator. Gas from the
inflator fills the airbag causing the bag to
break out of the cover. The inflator, the
airbag, and related hardware are all part of
the airbag module.
For airbag locations, seeWhere Are the
Airbags? 052.
How Does an Airbag Restrain?
In moderate to severe frontal or near frontal
collisions, even belted occupants can contact
the steering wheel or the instrument panel.
In moderate to severe side collisions, even
belted occupants can contact the inside of
the vehicle.
Airbags supplement the protection provided
by seat belts by distributing the force of the
impact more evenly over the
occupant's body. Rollover capable roof-rail airbags are
designed to help contain the head and chest
of occupants in the outboard seating
positions in the first and second rows. The
rollover capable roof-rail airbags are
designed to help reduce the risk of full or
partial ejection in rollover events, although
no system can prevent all such ejections.
But airbags would not help in many types
of collisions, primarily because the
occupant's motion is not toward those
airbags. See
When Should an Airbag Inflate?
0 53.
Airbags should never be regarded as
anything more than a supplement to seat
belts.What Will You See after an
Airbag Inflates?
After frontal, knee, and seat-mounted side
impact airbags inflate, they quickly deflate,
so quickly that some people may not even
realize the airbags inflated. Roof-rail airbags
may still be at least partially inflated for
some time after they inflate. Some
components of the airbag module may be
hot for several minutes. For location of the
airbags, see Where Are the Airbags? 052. The parts of the airbag that come into
contact with you may be warm, but not too
hot to touch. There may be some smoke
and dust coming from the vents in the
deflated airbags. Airbag inflation does not
prevent the driver from seeing out of the
windshield or being able to steer the
vehicle, nor does it prevent people from
leaving the vehicle.
{Warning
When an airbag inflates, there may be
dust in the air. This dust could cause
breathing problems for people with a
history of asthma or other breathing
trouble. To avoid this, everyone in the
vehicle should get out as soon as it is
safe to do so. If you have breathing
problems but cannot get out of the
vehicle after an airbag inflates, then get
fresh air by opening a window or a door.
If you experience breathing problems
following an airbag deployment, you
should seek medical attention.
The vehicle has a feature that may
automatically unlock the doors, turn on the
interior lamps and hazard warning flashers,
and shut off the fuel system after the

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608203) - 2021 - CRC - 10/29/20
Seats and Restraints 55
airbags inflate. The feature may also
activate, without airbag inflation, after an
event that exceeds a predetermined
threshold. After turning the ignition off and
then on again, the fuel system will return to
normal operation; the doors can be locked,
the interior lamps can be turned off, and
the hazard warning flashers can be turned
off using the controls for those features.
If any of these systems are damaged in the
crash they may not operate as normal.
{Warning
A crash severe enough to inflate the
airbags may have also damaged
important functions in the vehicle, such
as the fuel system, brake and steering
systems, etc. Even if the vehicle appears
to be drivable after a moderate crash,
there may be concealed damage that
could make it difficult to safely operate
the vehicle.
Use caution if you should attempt to
restart the engine after a crash has
occurred.In many crashes severe enough to inflate
the airbag, windshields are broken by
vehicle deformation. Additional windshield
breakage may also occur from the front
outboard passenger airbag.
.Airbags are designed to inflate only once.
After an airbag inflates, you will need
some new parts for the airbag system.
If you do not get them, the airbag
system will not be there to help protect
you in another crash. A new system will
include airbag modules and possibly other
parts. The service manual for the vehicle
covers the need to replace other parts.
.The vehicle has a crash sensing and
diagnostic module which records
information after a crash. See
Vehicle
Data Recording and Privacy 0358 and
Event Data Recorders 0359.
.Let only qualified technicians work on the
airbag system. Improper service can mean
that an airbag system will not work
properly. See your dealer for service.
Passenger Sensing System
The vehicle has a passenger sensing system
for the front outboard passenger position.
The passenger airbag status indicator will
light on the overhead console when the
vehicle is started.
The words ON and OFF, and the symbols for
on and off, will be visible during the system
check. When the system check is complete,
either the word ON or OFF, and the symbol
for on or off, will be visible. See Passenger
Airbag Status Indicator 099.
The passenger sensing system turns off the
front outboard passenger frontal airbag
under certain conditions. No other airbag is
affected by the passenger sensing system.
The passenger sensing system works with
sensors that are part of the front outboard
passenger seat and seat belt. The sensors
are designed to detect the presence of a

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608203) - 2021 - CRC - 10/29/20
82 Instruments and Controls
Instruments and Controls
Controls
Steering Wheel Adjustment . . . . . . . . . . . . 83
Steering Wheel Controls . . . . . . . . . . . . . . . . 83
Heated Steering Wheel . . . . . . . . . . . . . . . . . 83
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Windshield Wiper/Washer . . . . . . . . . . . . . 84
Rear Window Wiper/Washer . . . . . . . . . . . 85
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Power Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Wireless Charging . . . . . . . . . . . . . . . . . . . . . . 87
Warning Lights, Gauges, and Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Instrument Cluster (Base and Midlevel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Instrument Cluster (Uplevel) . . . . . . . . . . . . 93
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . 95
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Engine Oil Temperature Gauge . . . . . . . . . 96
Engine Coolant Temperature Gauge . . . . 96
Voltmeter Gauge . . . . . . . . . . . . . . . . . . . . . . . 97
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . . 98
Airbag Readiness Light . . . . . . . . . . . . . . . . . 98 Passenger Airbag Status Indicator . . . . . . 99
Charging System Light . . . . . . . . . . . . . . . . 100
Malfunction Indicator Lamp (Check
Engine Light) . . . . . . . . . . . . . . . . . . . . . . . . 100
Brake System Warning Light . . . . . . . . . . . 101
Electric Parking Brake Light . . . . . . . . . . . . 102
Service Electric Parking Brake Light . . . . 102
Antilock Brake System (ABS) Warning
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Tow/Haul Mode Light . . . . . . . . . . . . . . . . . 103
Lane Keep Assist (LKA) Light . . . . . . . . . . . 103
Vehicle Ahead Indicator . . . . . . . . . . . . . . . 103
Pedestrian Ahead Indicator . . . . . . . . . . . . 104
Traction Off Light . . . . . . . . . . . . . . . . . . . . . 104
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . 104
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . . . . . . . . . 104
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Tire Pressure Light . . . . . . . . . . . . . . . . . . . . . 105
Engine Oil Pressure Light . . . . . . . . . . . . . . 105
Low Fuel Warning Light . . . . . . . . . . . . . . . 106
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . 106
High-Beam On Light . . . . . . . . . . . . . . . . . . . 106
Lamps On Reminder . . . . . . . . . . . . . . . . . . . 107
Cruise Control Light . . . . . . . . . . . . . . . . . . . 107
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . 107
Information Displays
Driver Information Center (DIC) (Base and Midlevel) . . . . . . . . . . . . . . . . . . . . . . . . 107 Driver Information Center (DIC)
(Uplevel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . . . . . . . . . . . 113
Engine Power Messages . . . . . . . . . . . . . . . . 113
Vehicle Speed Messages . . . . . . . . . . . . . . . 113
Vehicle Personalization
Vehicle Personalization . . . . . . . . . . . . . . . . . 113
Universal Remote System
Universal Remote System . . . . . . . . . . . . . . 117
Universal Remote SystemProgramming . . . . . . . . . . . . . . . . . . . . . . . . . 117
Universal Remote System Operation . . . 119

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608203) - 2021 - CRC - 10/29/20
90 Instruments and Controls
Instrument Cluster (Base and Midlevel)
Base Level and Midlevel English Shown, Metric Similar
1.Fuel Gauge 095
2. Engine Coolant Temperature Gauge
096
3. Speedometer 094
4. Driver Information Center (DIC) (Base
and Midlevel) 0107 or
Driver Information Center (DIC)
(Uplevel) 0110 5.
Tachometer 095
Base Cluster Menu
There is an interactive display area in the
center of the instrument cluster.
Use the right steering wheel control to open
and scroll through the different items and
displays.
Press
Sto access the cluster applications.
Use the thumbwheel to scroll
yorz
through the list of available applications.
Not all applications will be available on all
vehicles.
.Info App. This is where the selected Driver
Information Center (DIC) displays can be
viewed. See “Driver Information Center
(DIC) (Base and Midlevel)” in the Index.
.Options

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608203) - 2021 - CRC - 10/29/20
Instruments and Controls 91
Options
Press the thumbwheel to select the Options
app, then press
Tto enter the Options
menu. Use
yorzto scroll through items
in the Options menu.
Units : Press
Twhile Units is displayed to
enter the Units menu. Choose English or
Metric units by pressing the thumbwheel
while the desired item is highlighted.
Info Pages : Press
Twhile Info Pages is
displayed to enter the Info Pages menu and
select the items to be displayed in the
Info app.
Speed Warning : The Speed Warning display
allows you to set a speed not to be
exceeded. To set, press
Twhen Speed
Warning is displayed.
Scroll
yorzto adjust the value. Press
the thumbwheel to set the speed.
Once the speed is set, this feature can be
turned off by pressing the thumbwheel
while viewing this page. If the selected
speed limit is exceeded, a pop-up warning is
displayed with a chime.
Midlevel Cluster Menu
There is an interactive display area in the
center of the instrument cluster.
Use the right steering wheel control to open
and scroll through the different items and
displays.
Press
SorTto change between the
cluster applications. Use the thumbwheel to
scroll
yorzthrough the list of available
features within each application. Not all
applications will be available on all vehicles.
Some may be temporarily restricted when
the vehicle is off or in ACC/ACCESSORY.
.Home Page
.Info App. This is where the selected Driver
Information Center (DIC) displays can be
viewed. See “Driver Information Center
(DIC) (Base and Midlevel)” in the Index.
.Audio
.Navigation
.Phone
.Options
Home
Information displayed here can be
customized from the Options menu.
Speedometer :Displays how fast the vehicle
is moving in either kilometers per hour
(km/h) or miles per hour (mph).
Speed Sign : Shows sign information, which
comes from a roadway database in the
onboard navigation, if equipped.
Time : Displays the current time.
Fuel Range : Displays the approximate
distance the vehicle can be driven without
refueling. The fuel range estimate is based
on an average of the vehicle’s fuel economy
over recent driving history and the amount
of fuel remaining in the fuel tank. Fuel
range cannot be reset.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608203) - 2021 - CRC - 10/29/20
92 Instruments and Controls
Audio
Use the thumbwheel to scrollyorz
through options, browse for music, select
from favorites, or change the audio source.
In the main view, scroll to change the
station or go to the next or previous track.
Navigation
In the Navigation menu, if there is no active
route, press the thumbwheel to access
Recents or Favorites. If there is an active
route, press the thumbwheel to cancel or
resume route guidance, mute or unmute
voice guidance, or access Recents or
Favorites.
Phone
In the Phone menu, if there is no active
phone call, view recent calls, scroll through
contacts, select from the favorites, or change
the phone source. If there is an active call,
mute the phone or switch to handset
operation.
Options
Use the thumbwheel to scrollyorz
through items in the Options menu. Press
the thumbwheel to select the item. Press
S
to exit the item.
Units :Choose US or Metric units. A selected
mark will be displayed next to the
selected item.
Info Page Options : Select the items to be
displayed in the Info app. A selected mark
will be displayed next to the selected item. Home Page Options :
Select the available
elements to display. Not all elements will be
available on all vehicles: Speedometer,
Active Safety, Speed Sign, Time, and Fuel
Range.
Speed Warning : Allows you to set a speed
not to be exceeded. To set, press the
thumbwheel when Speed Warning is
displayed. Use
yorzto adjust the value.
Press the thumbwheel to set the speed.
Once the speed is set, this feature can be
turned off by pressing the thumbwheel
while viewing this page. If the selected
speed limit is exceeded, a pop-up warning is
displayed with a chime.
Software Information : Displays open source
software information.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608203) - 2021 - CRC - 10/29/20
Instruments and Controls 93
Instrument Cluster (Uplevel)
Uplevel English Standard Theme Shown, Metric Similar
1.Engine Oil Temperature Gauge 096
2. Speedometer 094
3. Voltmeter Gauge 097
4. Engine Coolant Temperature Gauge
096
5. Fuel Gauge 095 6.
Driver Information Center (DIC) (Base
and Midlevel) 0107 or
Driver Information Center (DIC)
(Uplevel) 0110
7. Tachometer 095
Cluster Menu
There is an interactive display area in the
center of the instrument cluster.
Use the right steering wheel control to open
and scroll through the different items and
displays.
Press
Sto access the cluster applications.
Use the thumbwheel to scroll
yorz
through the list of available applications.
Press the thumbwheel to select. Not all
applications will be available on all vehicles.
.Info App. This is where the selected Driver
Information Center (DIC) displays can be

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14608203) - 2021 - CRC - 10/29/20
Instruments and Controls 95
Trip Odometer
The trip odometer shows how far the
vehicle has been driven since the trip
odometer was last reset.
The trip odometer is accessed and reset
through the Driver Information Center (DIC).
SeeDriver Information Center (DIC) (Base
and Midlevel) 0107 or
Driver Information Center (DIC) (Uplevel)
0 110.
Tachometer
The tachometer displays the engine speed in
revolutions per minute (rpm).
With the Stop/Start system, when the
ignition is on, the tachometer indicates the
vehicle status. When pointing to AUTO
STOP, the engine is off but the vehicle is on
and can move. The engine could auto start
at any time. When the indicator points to
OFF, the vehicle is off.
When the engine is on, the tachometer will
indicate the engine’s revolutions per minute
(rpm). The tachometer may vary by several
hundred rpm, during Auto Stop mode, when
the engine is shutting off and restarting.
Fuel Gauge
Metric Base and Midlevel
English Base and Midlevel
Metric Uplevel
English Uplevel