sensor CHEVROLET BLAZER 2022 User Guide

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15165663) - 2022 - CRC - 4/27/21
188 Climate Controls
SYNC :Press to link all passenger
temperature settings to the driver setting.
The SYNC indicator light will turn on. When
the passenger settings are adjusted, the
SYNC indicator light turns off.
Manual Operation
O: Press to turn the fan off or on. When
off is selected, the system will prevent air
from flowing into the cabin. If on is
selected, or any other button is pressed, the
climate control system will turn on and
return to delivering airflow as set. The
temperature control and air delivery mode
can still be adjusted.
^: Press to increase or decrease the fan
speed. The fan speed setting appears on the
main display. Pressing any airflow mode
button cancels automatic fan control and
the fan is controlled manually. Press AUTO
to return to automatic operation.
Air Delivery Mode Controls : Press
X,Y,
or
[to change the direction of the
airflow. Any combination of the three
buttons can be selected. The indicator light
in the button will turn on. The current mode
appears in the display. Pressing either
button cancels automatic air delivery control and the direction of the airflow is controlled
manually. Press AUTO to return to
automatic operation.
To change the current mode, select one or
more of the following modes:
X:
Clears the windows of fog or moisture.
Air is directed to the windshield.
Y: Air is directed to the instrument panel
outlets.
[: Air is directed to the floor outlets.
0MAX : Air is directed to the windshield,
the fan runs at a higher speed, and the
temperature of the air is increased if not
already at maximum. This mode overrides
the previous mode selected and clears fog or
frost from the windshield more quickly.
When the button is pressed again, the
system returns to the previous mode setting
and fan speed.
For best results, clear all snow and ice from
the windshield before defrosting and do not
use recirculation.
A/C : Press to turn the air conditioning
system on or off. If the climate control
system is turned off or the outside
temperature falls below freezing, the air
conditioner will not run. Pressing this button cancels automatic air
conditioning and turns off the air
conditioner. Press AUTO to return to
automatic operation and the air conditioner
runs automatically as needed. When the
indicator light is on, the air conditioner runs
automatically to cool the air inside the
vehicle or to dry the air needed to defog
the windshield faster.
@:
Press to turn on recirculation. An
indicator light comes on. Air is recirculated
to quickly cool the inside of the vehicle or
to reduce the entry of outside air and odors.
If selected during cool or cold weather, the
windshield and windows may fog. Turn off
recirculation to help clear the windshield
and windows.
Auto Defog : The climate control system
may have a sensor to automatically detect
high humidity inside the vehicle. When high
humidity is detected, the climate control
system may adjust to outside air supply and
turn on the air conditioner. The fan speed
may slightly increase to help prevent
fogging. If the climate control system does
not detect possible window fogging, it
returns to normal operation.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
15165663) - 2022 - CRC - 4/27/21
Climate Controls 189
To turn Auto Defog off or on, see“Climate
and Air Quality” underVehicle
Personalization 0117.
Rear Window Defogger
=:Press to turn the rear window
defogger on or off. An indicator light on the
button comes on to show that the rear
window defogger is on. The rear window
defogger only works when the ignition is
on. The defogger turns off when the ignition
is off or in ACC/ACCESSORY.
The rear window defogger can be set to
automatic operation. See “Climate and Air
Quality” underVehicle Personalization 0117.
When Auto Rear Defog is selected, the rear
window defogger turns on automatically
when the interior temperature is cold and
the outside temperature is about 7 °C (44 °F)
and below. The auto rear defogger turns off
automatically.
If the vehicle is equipped with heated
outside mirrors, they turn on when the rear
window defogger button is on and help to
clear fog or frost from the surface of the
mirror. See Heated Mirrors 026.
Caution
Do not try to clear frost or other material
from the inside of the front windshield
and rear window with a razor blade or
anything else that is sharp. This may
damage the rear window defogger grid
and affect the radio's ability to pick up
stations clearly. The repairs would not be
covered by the vehicle warranty.
LorM:If equipped, pressLorMto
heat the driver or passenger seat. See
Heated and Ventilated Front Seats 041.
{orC:If equipped, press{orCto
ventilate the driver or passenger seat. See
Heated and Ventilated Front Seats 041.
Remote Start Climate Control Operation :
If equipped with remote start, the climate
control system may run when the vehicle is
started remotely. The system will use the
defrost setting if it is cold outside or turn
on using the coldest settings if it is hot
outside. The rear defog may come on during
remote start based on cold ambient
conditions. The rear defog indicator light
does not come on during a remote start. If equipped, the heated seats will turn on if
it is cold outside or the ventilated seats will
turn on if it is hot outside. The heated and
ventilated seat indicator lights may not
come on during a remote start. If equipped,
the heated steering wheel will come on in a
remote start if it is cold outside. The heated
steering wheel indicator light may not come
on. See
Remote Vehicle Start 013 and
Heated and Ventilated Front Seats 041.
Sensor
The solar sensor, on top of the instrument
panel near the windshield, monitors the
solar heat.
The climate control system uses the sensor
information to adjust the temperature, fan
speed, recirculation, and air delivery mode
for best comfort.
Do not cover the sensor; otherwise the
automatic climate control system may not
work properly.
Afterblow Feature
Under certain conditions, the fan may stay
on or may turn on and off several times
after you turn off and lock the vehicle. This
is normal.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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222 Driving and Operating
entire section before using this system. The
following gap is the following time between
your vehicle and a vehicle detected directly
ahead in your path, moving in the same
direction. If no vehicle is detected in your
path, ACC works like regular cruise control.
ACC uses camera and radar sensors. See
Radio Frequency Statement0363.
If a vehicle is detected in your path, ACC can
apply acceleration or limited, moderate
braking to maintain the selected following
gap. To disengage ACC, apply the brake
pedal. If ACC is controlling your vehicle
speed when the Traction Control System
(TCS) or StabiliTrak/Electronic Stability
Control (ESC) system activates, the ACC may
automatically disengage. See Traction
Control/Electronic Stability Control 0217.
When road conditions allow ACC to be
safely used, the ACC can be turned back on.
Turning off the TCS or StabiliTrak/ESC
system will disengage the cruise control.
ACC can reduce the need for you to
frequently brake and accelerate, especially
when used on expressways, freeways, and
interstate highways. When used on other
roads, you may need to take over the
control of braking or acceleration more
often.{Warning
ACC has limited braking ability and may
not have time to slow the vehicle down
enough to avoid a collision with another
vehicle you are following. This can occur
when vehicles suddenly slow or stop
ahead, or enter your lane. Also see
“Alerting the Driver” in this section.
Complete attention is always required
while driving and you should be ready to
take action and apply the brakes. See
Defensive Driving 0193.
{Warning
ACC will not detect or brake for children,
pedestrians, animals, or other objects.
Do not use ACC when:
.On winding and hilly roads or when
the sensors are blocked by snow, ice,
or dirt. The system may not detect a
vehicle ahead. Keep the entire front of
the vehicle clean.
.Visibility is low, such as in fog, rain,
or snow conditions. ACC performance
is limited under these conditions.
(Continued)
Warning (Continued)
.On slippery roads where fast changes
in tire traction can cause excessive
wheel slip.
J:Press to turn the system on or off. The
indicator turns white on the instrument
cluster when ACC is turned on.
RES+ : Press briefly to resume the previous
set speed or to increase vehicle speed if ACC
is already activated. To increase speed by
about 1 km/h (1 mph), press RES+ briefly. To
increase speed to the next 5 km/h (5 mph)
mark on the speedometer, hold RES+.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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226 Driving and Operating
Approaching and Following a Vehicle
The vehicle ahead indicator is in the
instrument cluster.
The vehicle ahead indicator only displays
when a vehicle is detected in your vehicle’s
path moving in the same direction.
If this symbol is not displaying, ACC will not
respond to or brake for vehicles ahead.
ACC automatically slows the vehicle down
and adjusts vehicle speed to follow the
vehicle in front at the selected following
gap. The vehicle speed increases or
decreases to follow the vehicle in front of
you, but will not exceed the set speed.
It may apply limited braking, if necessary.
When braking is active, the brake lamps will
come on. The automatic braking may feel or
sound different than if the brakes were
applied manually. This is normal.Passing a Vehicle While Using ACC
If the set speed is high enough, and the left
turn signal is used to pass a vehicle ahead
in the selected following gap, ACC may
assist by gradually accelerating the vehicle
prior to the lane change.{Warning
When using ACC to pass a vehicle or
perform a lane change, the following
distance to the vehicle being passed may
be reduced. ACC may not apply sufficient
acceleration or braking when passing a
vehicle or performing a lane change.
Always be ready to manually accelerate
or brake to complete the pass or lane
change.
Stationary or Very Slow-Moving Objects
{Warning
ACC may not detect and react to stopped
or slow-moving vehicles ahead of you. For
example, the system may not brake for a
vehicle it has never detected moving. This
can occur in stop-and-go traffic or when a
vehicle suddenly appears due to a vehicle (Continued)
Warning (Continued)
ahead changing lanes. Your vehicle may
not stop and could cause a crash. Use
caution when using ACC. Your complete
attention is always required while driving
and you should be ready to take action
and apply the brakes.
Irregular Objects Affecting ACC
ACC may have difficulty detecting the
following objects:
.Vehicles with cargo extending from the
back end.
.Non-standard shaped vehicles, such as
vehicle transport, vehicles with a side car
fitted, or horse carriages.
.Objects that are close to the front of your
vehicle.
ACC Automatically Disengages
ACC may automatically disengage and the
driver will need to manually apply the
brakes to slow the vehicle when:
.The sensors are blocked.
.The Traction Control System (TCS) or
StabiliTrak/ESC system has activated or
been disabled.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 229
Driving in Narrow Lanes
Vehicles in adjacent traffic lanes or roadside
objects may be incorrectly detected when
located along the roadway.
Do Not Use ACC on Hills and When Towing a
Trailer
Do not use ACC when driving on steep hills
or when towing a trailer. ACC will not detect
a vehicle in the lane while driving on steep
hills. The driver will often need to take over
acceleration and braking on steep hills,
especially when towing a trailer. If the
brakes are applied, the ACC disengages.
Disengaging ACC
There are three ways to disengage ACC:
.Step lightly on the brake pedal.
.Press*.
.PressJ.Erasing Speed Memory
The ACC set speed is erased from memory if
Jis pressed or if the ignition is turned off.
Weather Conditions Affecting ACC
System operation may be limited under
snow, heavy rain, or road spray conditions.
Accessory Installations and Vehicle
Modifications
Do not install or place any object around
the front camera windshield area that would
obstruct the front camera view.
Do not install objects on top of the vehicle
that overhang and obstruct the front
camera, such as a canoe, kayak, or other
items that can be transported on a roof rack
system. See Roof Rack System 084.
Do not modify the hood, headlamps, or fog
lamps, as this may limit the camera’s ability
to detect an object.
Cleaning the Sensing System
The camera sensor on the windshield behind
the rearview mirror and the radar sensors
on the front of the vehicle can become
blocked by snow, ice, dirt, or mud. These
areas need to be cleaned for ACC to operate
properly. If ACC will not operate, regular cruise control
may be available. See
“Switching Between
ACC and Regular Cruise Control” in this
section. Always consider driving conditions
before using either cruise control system.
For cleaning instructions, see “Washing the
Vehicle” underExterior Care 0329.
Driver Assistance Systems
This vehicle may have features that work
together to help avoid crashes or reduce
crash damage while driving, backing, and
parking. Read this entire section before
using these systems.
{Warning
Do not rely on the Driver Assistance
Systems. These systems do not replace
the need for paying attention and driving
safely. You may not hear or feel alerts or
warnings provided by these systems.
Failure to use proper care when driving
may result in injury, death, or vehicle
damage. See Defensive Driving 0193.
(Continued)

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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230 Driving and Operating
Warning (Continued)
Under many conditions, these systems
will not:
.Detect children, pedestrians, bicyclists,
or animals.
.Detect vehicles or objects outside the
area monitored by the system.
.Work at all driving speeds.
.Warn you or provide you with enough
time to avoid a crash.
.Work under poor visibility or bad
weather conditions.
.Work if the detection sensor is not
cleaned or is covered by ice, snow,
mud, or dirt.
.Work if the detection sensor is
covered up, such as with a sticker,
magnet, or metal plate.
.Work if the area surrounding the
detection sensor is damaged or not
properly repaired.(Continued)
Warning (Continued)
Complete attention is always required
while driving, and you should be ready to
take action and apply the brakes and/or
steer the vehicle to avoid crashes.
Audible or Safety Alert Seat
Some driver assistance features alert the
driver of obstacles by beeping. To change
the volume of the warning chime, see
“Comfort and Convenience” underVehicle
Personalization 0117.
If equipped with the Safety Alert Seat, the
driver seat cushion may provide a vibrating
pulse alert instead of beeping. To change
this, see “Collision/Detection Systems” under
Vehicle Personalization 0117.
Cleaning
Depending on vehicle options, keep these
areas of the vehicle clean to ensure the best
driver assistance feature performance. Driver
Information Center (DIC) messages may
display when the systems are unavailable or
blocked.
.Front and rear bumpers and the area
below the bumpers
.Front grille and headlamps
.Front camera lens in the front grille or
near the front emblem

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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234 Driving and Operating
{Warning
Use Hitch Guidance only to help back the
vehicle to a trailer hitch or, when
traveling above 12 km/h (8 mph), to
briefly check the status of your trailer. Do
not use for any other purpose, such as
making lane change decisions. Before
making a lane change, always check the
mirrors and glance over your shoulder.
Improper use could result in serious
injury to you or others.
Park Assist
The vehicle may be equipped with Rear Park
Assist (RPA). Under certain conditions, the
Park Assist system can assist the driver
during backing and reverse parking
maneuvers when the vehicle is driven at no
more than 9 km/h (6 mph). An illuminated
indicator in the Park Assist button indicates
the system is ready. An illuminated indicator
in the Park Assist button indicates the
system is ready.
Sensors located in the bumpers measure the
distance between the vehicle and objects
using sonar technology. These sensors aredesigned to detect certain objects up to
2.5 m (8 ft) behind your vehicle that are
taller than 25 cm (10 in).
Different environmental conditions may
affect whether and how far the Park Assist
system can detect objects. Keep the sensors
clean of mud, dirt, snow, ice, and slush; and
clean sensors after a car wash in freezing
temperatures. Sensors that are not clean
may not detect objects or may cause the
system to alert when not required.
{Warning
The Park Assist System is no substitute
for careful and attentive driving. The Park
Assist system does not detect children,
pedestrians, bicyclists, animals, or objects
located below the bumper or that are too
close or too far from the vehicle. It is not
available at speeds greater than 9 km/h
(6 mph). To prevent injury, death,
or vehicle damage, even with Park Assist,
always check the area around the vehicle
and check all mirrors before moving
forward or backing.
How the System Works
The vehicle may have a Park
Assist amphitheatre-like display on the
cluster with bars that represent the
estimated location of a detected object and
the vehicle’s distance from the object. As a
detected object becomes closer, more bars
light up and change color from yellow to
amber to red.
When an object is first detected in the rear,
one beep will be heard from the rear, or the
driver's seat will pulse two times,
if equipped with Safety Alert Seat. When an
object is very close, five beeps will sound
from the rear, or the driver's seat will pulse
five times.

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Driving and Operating 235
Turning the System On and Off
The Park Assist System can be turned on or
off using the infotainment system. See
Vehicle Personalization0117.
The
Xbutton is used to turn on or off
the Park Assist, which also turns on or off
the Backing Warning and Reverse Automatic
Braking (RAB) at the same time. When the
system is turned off, a system off message
is shown on the display. This message
disappears after a short period of time.
Turn off Park Assist when towing a trailer to
prevent unwanted beeps and when a bike
rack is attached to ensure proper operation.
When the System Does Not Seem to Work
Properly
If a service message displays, check the
following conditions:
.The sensors may not be clean. Keep the
vehicle's front and rear bumpers free of
mud, dirt, snow, ice, and slush. For
cleaning instructions, see Exterior Care
0 329.
.The Park Assist sensors may be covered
by frost or ice. Frost or ice can form
around and behind the sensors and may
not always be seen; this can occur after washing the vehicle in cold weather. The
message may not clear until the frost or
ice has melted.
If a service message displays and the above
conditions do not exist, take the vehicle to
your dealer for repairs.
If the Park Assist System does not activate
due to a temporary condition, a system off
message is shown on the display. This can
occur under the following conditions:
.The driver has disabled the system.
.An object is currently blocking the rear
sensors (for example, bike rack, tailgate,
trailer hitch, etc.). Once the object is
removed, Park Assist will return to normal
operation.
.The bumper is damaged. Take the vehicle
to your dealer for repairs.
.Other conditions, such as vibrations from
a jackhammer or the compression of air
brakes on a very large truck, are affecting
system performance.
Rear Cross Traffic Alert (RCTA)
System
If equipped, Rear Cross Traffic Alert (RCTA)
displays a red warning triangle with a left
or right pointing arrow on the infotainment display to warn of traffic coming from the
left or right. This system detects objects
coming from up to 20 m (65 ft) from the left
or right side of the vehicle. When an object
is detected, either three beeps sound from
the left or right or three Safety Alert Seat
pulses occur on the left or right side,
depending on the direction of the detected
vehicle.
Driving With a Trailer
Use caution while backing up when towing
a trailer. The RCTA feature is automatically
disabled when a trailer is attached to the
vehicle.
Turning the Features On or Off
The
Xbutton on the center console is
used to turn on or off Rear Park Assist (RPA)
and RCTA at the same time. The indicator
light in the button comes on when the
features are on and turns off when the
features have been disabled.
Turn off RPA and RCTA when towing a
trailer.
RCTA can be turned on or off using the
infotainment system. See “Collision/
Detection Systems” underVehicle
Personalization 0117.

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236 Driving and Operating
Assistance Systems for Driving
If equipped, when driving the vehicle in a
forward gear, Forward Collision Alert (FCA),
Lane Departure Warning (LDW), Lane Keep
Assist (LKA), Side Blind Zone Alert (SBZA),
Lane Change Alert (LCA), Automatic
Emergency Braking (AEB), and/or the Front
Pedestrian Braking (FPB) System can help to
avoid a crash or reduce crash damage.
Forward Collision Alert (FCA)
System
If equipped, the FCA system may help to
avoid or reduce the harm caused by
front-end crashes. When approaching a
vehicle ahead too quickly, FCA provides a
red flashing alert on the windshield and
rapidly beeps or pulses the driver seat. FCA
also lights an amber visual alert if following
another vehicle much too closely.
FCA detects vehicles within a distance of
approximately 60 m (197 ft) and operates at
speeds above 8 km/h (5 mph). If the vehicle
has Adaptive Cruise Control (ACC), it can
detect vehicles to distances of approximately
110 m (360 ft) and operates at speeds above
4km/h (2.5 mph). SeeAdaptive Cruise Control
(Advanced) 0221.
{Warning
FCA is a warning system and does not
apply the brakes. When approaching a
slower-moving or stopped vehicle ahead
too rapidly, or when following a vehicle
too closely, FCA may not provide a
warning with enough time to help avoid
a crash. It also may not provide any
warning at all. FCA does not warn of
pedestrians, animals, signs, guardrails,
bridges, construction barrels, or other
objects. Be ready to take action and
apply the brakes. See Defensive Driving
0 193.
FCA can be disabled. See “Collision/Detection
Systems” underVehicle Personalization
0 117.
Detecting the Vehicle Ahead
FCA warnings will not occur unless the FCA
system detects a vehicle ahead. When a
vehicle is detected, the vehicle ahead
indicator will display green. Vehicles may
not be detected on curves, highway exit
ramps, or hills, due to poor visibility; or if a
vehicle ahead is partially blocked by
pedestrians or other objects. FCA will not
detect another vehicle ahead until it is
completely in the driving lane.
{Warning
FCA does not provide a warning to help
avoid a crash, unless it detects a vehicle.
FCA may not detect a vehicle ahead if
the FCA sensor is blocked by dirt, snow,
or ice, or if the windshield is damaged.
It may also not detect a vehicle on
winding or hilly roads, or in conditions
that can limit visibility such as fog, rain,
or snow, or if the headlamps or
windshield are not cleaned or in proper
condition. Keep the windshield,
headlamps, and FCA sensors clean and in
good repair.

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Driving and Operating 237
Collision Alert
When your vehicle approaches another
detected vehicle too rapidly, the red FCA
display will flash on the windshield. Also,
eight rapid high-pitched beeps will sound
from the front, or both sides of the Safety
Alert Seat will pulse five times. When this
Collision Alert occurs, the brake system may
prepare for driver braking to occur more
rapidly which can cause a brief, mild
deceleration. Continue to apply the brake
pedal as needed. Cruise control may be
disengaged when the Collision Alert occurs.
Tailgating Alert
The vehicle ahead indicator will display
amber when you are following a vehicle
ahead much too closely.
Selecting the Alert Timing
The Collision Alert control is on the steering
wheel. Press
[to set the FCA timing to
Far, Medium, or Near. The first button press
shows the current setting on the Driver
Information Center (DIC). Additional button
presses will change this setting. The chosen
setting will remain until it is changed and
will affect the timing of both the Collision
Alert and the Tailgating Alert features. The
timing of both alerts will vary based on
vehicle speed. The faster the vehicle speed,
the farther away the alert will occur. Consider traffic and weather conditions
when selecting the alert timing. The range
of selectable alert timings may not be
appropriate for all drivers and driving
conditions.
If your vehicle is equipped with Adaptive
Cruise Control (ACC), changing the FCA
timing setting automatically changes the
following gap setting (Far, Medium,
or Near).
Following Distance Indicator
The following distance to a moving vehicle
ahead in your path is indicated in following
time in seconds on the Driver Information
Center (DIC). See
Driver Information Center
(DIC) (Base and Midlevel) 0111 or
Driver Information Center (DIC) (Uplevel)
0 114. The minimum following time is
0.5 seconds away. If there is no vehicle
detected ahead, or the vehicle ahead is out
of sensor range, dashes will be displayed.
Unnecessary Alerts
FCA may provide unnecessary alerts for
turning vehicles, vehicles in other lanes,
objects that are not vehicles, or shadows.
These alerts are normal operation and the
vehicle does not need service.