
Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16401961) - 2023 - CRC - 5/17/22
176 Climate Controls
To turn Auto Defog off or on, select Settings
> Climate and Air Quality > Auto Defog >
Select ON or OFF.
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 vehicle is on.
The defogger turns off when the vehicle is
off or in accessory mode.
The rear window defogger can be set to
automatic operation. To turn Auto Defog off
or on, select Settings > Climate and Air
Quality > Auto Rear Defog > Select ON or
OFF. 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 027.
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 014 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
If equipped, 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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Climate Controls 177
Air Vents
Use the air outlets in the center and on the
side of the instrument panel to direct the
airflow. Turn the center knobs on the air
outlets counterclockwise or clockwise to
open or close off the airflow.
Operation Tips
.Clear away any ice, snow,
or leaves from the air inlets at the base
of the windshield that can block the flow
of air into the vehicle.
.Clear snow off the hood to improve
visibility and help decrease moisture
drawn into the vehicle.
.Use of non-GM approved hood deflectors
can adversely affect the performance of
the system.
.Keep the path under all seats clear of
objects to help circulate the air inside the
vehicle more effectively.
.If fogging reoccurs while in vent or in a
combination mode with mild temperature
throughout the vehicle, turn on the air
conditioner to reduce windshield fogging.
Maintenance
Passenger Compartment Air Filter
The filter reduces dust, pollen, and other
airborne irritants from outside air that is
pulled into the vehicle. The filter should be
replaced as part of routine scheduled
maintenance. SeeMaintenance Schedule
0 317.
See your dealer regarding replacement of
the filter.
Service
All vehicles have a label underhood that
identifies the refrigerant used in the vehicle.
The refrigerant system should only be
serviced by trained and certified technicians.
The air conditioning evaporator should never
be repaired or replaced by one from a
salvage vehicle. It should only be replaced
by a new evaporator to ensure proper and
safe operation.
During service, all refrigerants should be
reclaimed with proper equipment. Venting
refrigerants directly to the atmosphere is
harmful to the environment and may also create unsafe conditions based on
inhalation, combustion, frostbite, or other
health-based concerns.
The air conditioning system requires periodic
maintenance. See
Maintenance Schedule
0 317.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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178 Driving and Operating
Driving and Operating
Driving Information
Driving for Better Fuel Economy . . . . . . . 179
Distracted Driving . . . . . . . . . . . . . . . . . . . . . 179
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . 180
Impaired Driving . . . . . . . . . . . . . . . . . . . . . . 180
Control of a Vehicle . . . . . . . . . . . . . . . . . . . 180
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 181
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 182
Off-Road Driving . . . . . . . . . . . . . . . . . . . . . . . 182
Driving on Wet Roads . . . . . . . . . . . . . . . . . 185
Hill and Mountain Roads . . . . . . . . . . . . . . 186
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . 187
If the Vehicle Is Stuck . . . . . . . . . . . . . . . . . 188
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 188
Starting and Operating
New Vehicle Break-In . . . . . . . . . . . . . . . . . . 191
Ignition Positions . . . . . . . . . . . . . . . . . . . . . . 192
Starting the Engine . . . . . . . . . . . . . . . . . . . . 193
Stop/Start System . . . . . . . . . . . . . . . . . . . . . 194
Engine Heater . . . . . . . . . . . . . . . . . . . . . . . . . 195
Retained Accessory Power (RAP) . . . . . . . 196
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . 196
Shifting out of Park . . . . . . . . . . . . . . . . . . . 197
Parking over Things That Burn . . . . . . . . 198
Active Fuel Management . . . . . . . . . . . . . . 198Extended Parking . . . . . . . . . . . . . . . . . . . . . . 198
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . . . . . . . . . . . 198
Running the Vehicle While Parked . . . . . 199
Automatic Transmission
Automatic Transmission . . . . . . . . . . . . . . . 199
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . 201
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . . 201
Brakes
Electric Brake Boost . . . . . . . . . . . . . . . . . . . 202
Antilock Brake System (ABS) . . . . . . . . . . 202
Electric Parking Brake . . . . . . . . . . . . . . . . . 203
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Hill Start Assist (HSA) . . . . . . . . . . . . . . . . . 204
Ride Control Systems
Traction Control/Electronic Stability
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Driver Mode Control . . . . . . . . . . . . . . . . . . 206
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . 207
Adaptive Cruise Control (Advanced) . . . 209
Driver Assistance Systems
Driver Assistance Systems . . . . . . . . . . . . . 217 Assistance Systems for Parking or
Backing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Rear Vision Camera (RVC) . . . . . . . . . . . . . . 219
Surround Vision System . . . . . . . . . . . . . . . 219
Park Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Rear Cross Traffic Alert (RCTA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Assistance Systems for Driving . . . . . . . . 223
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Automatic Emergency Braking (AEB) . . . 225
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Side Blind Zone Alert (SBZA) . . . . . . . . . . . 228
Lane Change Alert (LCA) . . . . . . . . . . . . . . . 229
Lane Keep Assist (LKA) (KEEP) . . . . . . . . . 230
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Recommended Fuel . . . . . . . . . . . . . . . . . . . . 232
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 233
Fuels in Foreign Countries . . . . . . . . . . . . . 233
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . 233
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . 233
Filling a Portable Fuel Container . . . . . . . 235
Trailer Towing
General Towing Information . . . . . . . . . . . 235
Driving Characteristics and Towing Tips . . . . . . . . . . . . . . . . . . . . . . . . . 235
Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . . 238

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Driving and Operating 181
applied. Once the power assist is used up, it
can take longer to stop and the brake pedal
will be harder to push.
Steering
Caution
To avoid damage to the steering system,
do not drive over curbs, parking barriers,
or similar objects at speeds greater than
3 km/h (1 mph). Use care when driving
over other objects such as lane dividers
and speed bumps. Damage caused by
misuse of the vehicle is not covered by
the vehicle warranty.
Electric Power Steering
The vehicle is equipped with an electric
power steering system, which reduces the
amount of effort needed to steer the
vehicle. It does not have power steering
fluid. Regular maintenance is not required.
If the vehicle experiences a system
malfunction and loses power steering,
greater steering effort may be required.
Power steering assist also may be reduced if
you turn the steering wheel as far as it can
turn and hold it there with force for an
extended period of time.
See your dealer if there is a problem.
Curve Tips
.Take curves at a reasonable speed.
.Reduce speed before entering a curve.
.Maintain a reasonable steady speed
through the curve.
.Wait until the vehicle is out of the curve
before accelerating gently into the
straightaway.
Steering in Emergencies
.There are some situations when steering
around a problem may be more effective
than braking.
.Holding both sides of the steering wheel
allows you to turn 180 degrees without
removing a hand.
.The Antilock Brake System (ABS) allows
steering while braking.
Off-Road Recovery
The vehicle's right wheels can drop off the
edge of a road onto the shoulder while
driving. Follow these tips:1. Ease off the accelerator and then, if there is nothing in the way, steer the
vehicle so that it straddles the edge of
the pavement.

Chevrolet Blazer Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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182 Driving and Operating
2. Turn the steering wheel aboutone-eighth of a turn, until the right front
tire contacts the pavement edge.
3. Turn the steering wheel to go straight down the roadway.
Loss of Control
Skidding
There are three types of skids that
correspond to the vehicle's three control
systems:
.Braking Skid —wheels are not rolling.
.Steering or Cornering Skid —too much
speed or steering in a curve causes tires
to slip and lose cornering force.
.Acceleration Skid —too much throttle
causes the driving wheels to spin.
Defensive drivers avoid most skids by taking
reasonable care suited to existing conditions,
and by not overdriving those conditions. But
skids are always possible.
If the vehicle starts to slide, follow these
suggestions:
.Ease your foot off the accelerator pedal
and steer the way you want the vehicle
to go. The vehicle may straighten out. Be
ready for a second skid if it occurs.
.Slow down and adjust your driving
according to weather conditions. Stopping
distance can be longer and vehicle control
can be affected when traction is reduced
by water, snow, ice, gravel, or other
material on the road. Learn to recognize
warning clues —such as enough water,
ice, or packed snow on the road to make
a mirrored surface —and slow down
when you have any doubt.
.Try to avoid sudden steering, acceleration,
or braking, including reducing vehicle
speed by shifting to a lower gear. Any
sudden changes could cause the tires to
slide.
Remember: Antilock brakes help avoid only
the braking skid.
Off-Road Driving
All-Wheel Drive (AWD) vehicles can be used
for off-road driving. Vehicles without AWD
and vehicles not equipped with All Terrain
(AT) or On-Off Road (OOR) tires must not be
driven off-road except on a level, solid
surface. To contact the tire manufacturer for
more information about the original
equipment tires, see the warranty manual. Controlling the vehicle is the key to
successful off-road driving. One of the best
ways to control the vehicle is to control the
speed.
{Warning
When driving off-road, bouncing and
quick changes in direction can easily
throw you out of position. This could
cause you to lose control and crash. You
and your passengers should always wear
seat belts.
Before Driving Off-Road
.Have all necessary maintenance and
service work completed.
.Fuel the vehicle, fill fluid levels, and check
inflation pressure in all tires, including the
spare, if equipped.
.Read all the information about AWD
vehicles in this manual.
.Make sure all underbody shields,
if equipped, are properly attached.
.Know the local laws that apply to off-road
driving.

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Driving and Operating 187
Winter Driving
Driving on Snow or IceCaution
To avoid damage to the wheels and
brake components, always clear snow and
ice from inside the wheels and
underneath the vehicle before driving.
Snow or ice between the tires and the road
creates less traction or grip, so drive
carefully. Wet ice can occur at about 0 °C
(32 °F) when freezing rain begins to fall.
Avoid driving on wet ice or in freezing rain
until roads can be treated.
For Slippery Road Driving:
.Accelerate gently. Accelerating too quickly
causes the wheels to spin and makes the
surface under the tires slick.
.Turn on Traction Control. See Traction
Control/Electronic Stability Control 0204.
.The Antilock Brake System (ABS) improves
vehicle stability during hard stops, but
the brakes should be applied sooner than
when on dry pavement. See Antilock
Brake System (ABS) 0202.
.Allow greater following distance and
watch for slippery spots. Icy patches can
occur on otherwise clear roads in shaded
areas. The surface of a curve or an
overpass can remain icy when the
surrounding roads are clear. Avoid sudden
steering maneuvers and braking while
on ice.
.Turn off cruise control.
.Select All-Wheel Drive (AWD) Mode for
vehicles equipped with AWD. Select
Snow/Ice Mode for FWD only vehicles.
See Driver Mode Control 0206 and
All-Wheel Drive 0201.
Blizzard Conditions
Stop the vehicle in a safe place and signal
for help. Stay with the vehicle unless there
is help nearby. If possible, use Roadside
Assistance. See Roadside Assistance Program
0 332. To get help and keep everyone in the
vehicle safe:
.Turn on the hazard warning flashers.
.Tie a red cloth to an outside mirror.
{Warning
Snow can trap engine exhaust under the
vehicle. This may cause exhaust gases to
get inside. Engine exhaust contains
carbon monoxide (CO), which cannot be
seen or smelled. It can cause
unconsciousness and even death.
If the vehicle is stuck in snow:
.Clear snow from the base of the
vehicle, especially any blocking the
exhaust pipe.
.Open a window about 5 cm (2 in) on
the vehicle side that is away from the
wind, to bring in fresh air.
.Fully open the air outlets on or under
the instrument panel.
.Adjust the climate control system to
circulate the air inside the vehicle and
set the fan speed to the highest
setting. See “Climate Control Systems.”
For more information about CO, see
Engine Exhaust 0198.

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Driving and Operating 195
.The transmission is shifted out of
D (Drive) to any gear other than P (Park).
.Certain driver modes have been selected.
SeeDriver Mode Control 0206.
.The vehicle is on a steep hill or grade.
.The driver door has been opened or driver
seat belt has been unbuckled.
.The hood has been opened.
.The Auto Stop has reached the maximum
allowed time.
Auto Stop/Start Disable Switch
The automatic engine Stop/Start feature can
be disabled and enabled by pressing
h.
Auto Stop/Start is enabled each time you
start the vehicle. When the
hindicator is illuminated, the
system is enabled.
Engine Heater
The engine heater can provide easier
starting and better fuel economy during
engine warm-up in cold weather conditions
at or below 0 °F (−18 °C). Vehicles with an
engine heater should be plugged in at least
four hours before starting. Some models
may have an internal thermostat in the cord
which will prevent engine heater operation
at temperatures above 0 °F (−18 °C).
{Warning
Do not plug in the engine block heater
while the vehicle is parked in a garage or
under a carport. Property damage or
personal injury may result. Always park
the vehicle in a clear open area away
from buildings or structures.
To Use the Engine Heater
1. Turn off the engine.
2. Check the heater cord for damage. If it is damaged, do not use it. See your dealer
for a replacement. Inspect the cord for
damage yearly.
3. Plug the heater cord into the connector in the front bumper.
4. Plug the cord into a grounded 110-volt AC outlet that is protected by a ground
fault detection function.

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Driving and Operating 197
Warning (Continued)
Do not leave the vehicle when the engine
is running. If you have left the engine
running, the vehicle can move suddenly.
You or others could be injured. To be
sure the vehicle will not move, even
when you are on fairly level ground,
always set the parking brake and move
the shift lever to P (Park). SeeShifting
Into Park 0196. If you are towing a
trailer, see Driving Characteristics and
Towing Tips 0235.
If you have to leave the vehicle with the
engine running, be sure the vehicle is in
P (Park) and the parking brake is set before
you leave it. After you have moved the shift
lever into P (Park), hold the regular brake
pedal down. Then, see if you can move the
shift lever away from P (Park) without first
pressing the button.
If you can, it means that the shift lever was
not fully locked in P (Park).
Torque Lock
Torque lock is when the weight of the
vehicle puts too much force on the parking
pawl in the transmission. This happens when
parking on a hill and shifting the
transmission into P (Park) is not done
properly and then it is difficult to shift out
of P (Park). To prevent torque lock, set the
parking brake and then shift into P (Park). To
find out how, see “Shifting Into Park” listed
previously.
If torque lock does occur, your vehicle may
need to be pushed uphill by another vehicle
to relieve the parking pawl pressure, so you
can shift out of P (Park).
Shifting out of Park
This vehicle is equipped with an electronic
shift lock release system. The shift lock
release is designed to prevent movement of
the shift lever out of P (Park), unless the
ignition is on and the brake pedal is applied.
The shift lock release is always functional
except in the case of an uncharged or low
voltage (less than 9 volt) battery. If the vehicle has an uncharged battery or a
battery with low voltage, try charging or
jump starting the battery. See
Jump Starting
- North America 0301 for more information.
To shift out of P (Park): 1. Apply the brake pedal.
2. Release the parking brake. See Electric
Parking Brake 0203.
3. Press the shift lever button.
4. Move the shift lever.
If unable to shift out of P (Park): 1. Fully release the shift lever button.
2. While holding down the brake pedal, press the shift lever button again.
3. Move the shift lever.
If equipped, the Buckle to Drive feature may
prevent shifting from P (Park). See Buckle To
Drive 046.
If the shift lever will not move from P (Park),
consult your dealer or a professional towing
service.