2023 CHEVROLET TRAILBLAZER passenger seat adjustment

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
32 Keys, Doors, and Windows
Transmitters to the Vehicle underRemote
Key Operation (Mechanical Key) 010 or
Remote Key Operation (Remote Key) 013.
Do not leave the transmitter or device that
disarms or deactivates the theft-deterrent
system in the vehicle.
Exterior Mirrors
Convex Mirrors
{Warning
A convex mirror can make things, like
other vehicles, look farther away than
they really are. If you cut too sharply
into the adjacent lane, you could hit a
vehicle that is driving next to you. Check
the inside mirror or glance over your
shoulder before changing lanes.
The passenger side mirror is convex shaped.
A convex mirror's surface is curved so more
can be seen from the driver seat.
Power Mirrors
To adjust a mirror: 1. Press
}or|to choose the driver or
passenger mirror.
2. Press one of the four arrows on the control pad to move the mirror in the
desired direction.
3. Adjust each outside mirror so that a little of the vehicle and the area behind it can
be seen.
4. Press
}or|again to deselect the
mirror. If you do not deselect the mirror,
the mirror adjustment will turn off after
about one minute. Lane Change Alert (LCA)
The vehicle may have LCA. See
Lane Change
Alert (LCA) 0222.
Side Blind Zone Alert
The vehicle may have Side Blind Zone Alert.
See Side Blind Zone Alert (SBZA) 0222.
Folding Mirrors
Manual Folding Mirrors
(If equipped), the mirrors can be folded
inward by hand to prevent damage when
going through tight maneuvers such as an
automatic car wash. Afterward, fold the
mirror outward by hand to return it to the
original position.
Heated Mirrors
K:Press to heat the mirrors.
See “Rear Window Defogger” under
Automatic Climate Control System 0169.
Interior Mirrors
Interior Rearview Mirrors
Adjust the rearview mirror for a clear view
of the area behind the vehicle.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Seats and Restraints 37
Seats and Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . 37
Front Seats
Seat Adjustment . . . . . . . . . . . . . . . . . . . . . . . 39
Power Seat Adjustment . . . . . . . . . . . . . . . . 39
Reclining Seatbacks . . . . . . . . . . . . . . . . . . . . 40
Lumbar Adjustment . . . . . . . . . . . . . . . . . . . . . 41
Heated Front Seats . . . . . . . . . . . . . . . . . . . . . 41
Folding Seatback . . . . . . . . . . . . . . . . . . . . . . . 42
Rear Seats
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Rear Seat Armrest . . . . . . . . . . . . . . . . . . . . . . 45
Seat Belts
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
How to Wear Seat Belts Properly . . . . . . 46
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . 48
Seat Belt Use During Pregnancy . . . . . . . . 50
Seat Belt Extender . . . . . . . . . . . . . . . . . . . . . . 51
Safety System Check . . . . . . . . . . . . . . . . . . . . 51
Seat Belt Care . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Replacing Seat Belt System Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Airbag System
Airbag System . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Where Are the Airbags? . . . . . . . . . . . . . . . . 54 When Should an Airbag Inflate? . . . . . . . . 55
What Makes an Airbag Inflate? . . . . . . . . . 56
How Does an Airbag Restrain? . . . . . . . . . 56
What Will You See after an Airbag
Inflates? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Passenger Sensing System . . . . . . . . . . . . . . 58
Servicing the Airbag-Equipped Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Adding Equipment to the Airbag-Equipped Vehicle . . . . . . . . . . . . . . 61
Airbag System Check . . . . . . . . . . . . . . . . . . . 62
Replacing Airbag System Parts after a Crash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Child Restraints
Older Children . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Infants and Young Children . . . . . . . . . . . . 64
Child Restraint Systems . . . . . . . . . . . . . . . . 66
Where to Put the Restraint . . . . . . . . . . . . 68
Lower Anchors and Tethers for Children(LATCH System) . . . . . . . . . . . . . . . . . . . . . . 69
Replacing LATCH System Parts After a Crash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Securing Child Restraints (With the Seat Belt in the Rear Seat) . . . . . . . . . . . . . . . . . 75
Securing Child Restraints (With the Seat Belt in the Front Seat) . . . . . . . . . . . . . . . . 76
Head Restraints
{
Warning
With head restraints that are not
installed and adjusted properly, there is a
greater chance that occupants will suffer
a neck/spinal injury in a crash. Do not
drive until the head restraints for all
occupants are installed and adjusted
properly.
Front Seats
The vehicle's front seats have adjustable
head restraints in the outboard seating
positions.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
42 Seats and Restraints
Warning (Continued)
cause the seat heater to overheat. An
overheated seat heater may cause a burn
or may damage the seat.
If equipped, the controls are on the climate
control panel. The engine must be running
to operate the heated seats.
Press
MorLto heat the driver or
passenger seat cushion and seatback.
Press the control once for the highest
setting. With each press of the control, the
heated seat will change to the next lower
setting, and then the off setting. Three
lights indicate the highest setting and one light 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.
Remote Start Heated Seats
When it is cold outside, the heated seats
can be turned on automatically during a
remote vehicle start. The heated seats will
be canceled when the vehicle is turned on.
Press the heated seat controls to use the
heated seats after the vehicle is started.
The heated seat indicator lights on the
control do not turn on during a remote
start.
The temperature performance of an
unoccupied seat may be reduced. This is
normal.
To enable or disable remote start heated
seats, select Settings > Vehicle > Remote
Lock, Unlock, and Start > Remote Start Auto
Heat Seats > Select ON or OFF.
Folding Seatback
The front passenger seatback may fold flat.
{Warning
If you fold the seatback forward to carry
longer objects, such as skis, be sure any
such cargo is not near an airbag. In a
crash, an inflating airbag might force that
object toward a person. This could cause
severe injury or even death. Secure
objects away from the area in which an
airbag would inflate.
Where Are the
Airbags? 054. Vehicle Load Limits 0181.
{Warning
Things you put on this seatback can
strike and injure people in a sudden stop
or turn, or in a crash. Remove or secure
all items before driving.
To fold the seatback: 1. Lower the head restraint all the way. See Head Restraints 037.
2. Move the seat as far back as possible. See Seat Adjustment 039 or
Power Seat Adjustment 039.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
50 Seats and Restraints
Shoulder Belt Height Adjuster
The vehicle has a shoulder belt height
adjuster for the driver and front outboard
passenger seating positions.
Adjust the height so the shoulder portion of
the belt is on the shoulder and not falling
off of it. The belt should be close to, but not
contacting, the neck. Improper shoulder belt
height adjustment could reduce the
effectiveness of the seat belt in a crash. See
How to Wear Seat Belts Properly046.
To move the shoulder belt height adjuster
down, push up on the release button and
move the height adjuster to the desired position. You can move the height adjuster
up by pushing up on the shoulder belt
guide.
After the adjuster is set to the desired
position, try to move it down without
pushing the release button to make sure it
has locked into position.
Seat Belt Pretensioners
This vehicle has seat belt pretensioners for
front outboard occupants. Although the seat
belt pretensioners cannot be seen, they are
part of the seat belt assembly. They can
help tighten the seat belts during the early
stages of a moderate to severe frontal, near
frontal, or rear crash if the threshold
conditions for pretensioner activation are
met. Seat belt pretensioners can also help
tighten the seat belts in a side crash or a
rollover event.
Pretensioners work only once. If the
pretensioners activate in a crash, the
pretensioners and probably other parts of
the vehicle’s seat belt system will need to
be replaced. See
Replacing Seat Belt System
Parts after a Crash 052. Do not sit on the outboard seat belt while
entering or exiting the vehicle or at any
time while sitting in the seat. Sitting on the
seat belt can damage the webbing and
hardware.
Rear Seat Belt Comfort Guides
Rear seat belt comfort guides may provide
added seat belt comfort for older children
who have outgrown booster seats and for
some adults. When installed on a shoulder
belt, the comfort guide positions the
shoulder belt away from the neck and head.
Comfort guides are available through your
dealer for the rear outboard seating
positions. Instructions are included with the
guides.
Seat Belt Use During Pregnancy
Seat belts work for everyone, including
pregnant women. Like all occupants, they
are more likely to be seriously injured if
they do not wear seat belts.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Instruments and Controls 85
Instruments and Controls
Controls
Steering Wheel Adjustment . . . . . . . . . . . . 86
Heated Steering Wheel . . . . . . . . . . . . . . . . . 86
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Windshield Wiper/Washer . . . . . . . . . . . . . 86
Rear Window Wiper/Washer . . . . . . . . . . . 87
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Power Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Wireless Charging . . . . . . . . . . . . . . . . . . . . . . 89
Warning Lights, Gauges, and Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Instrument Cluster . . . . . . . . . . . . . . . . . . . . . 92
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . 95
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Engine Coolant Temperature Gauge . . . . 96
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . . 97
Airbag Readiness Light . . . . . . . . . . . . . . . . . 97
Passenger Airbag Status Indicator . . . . . . 98
Charging System Light . . . . . . . . . . . . . . . . . 99
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . . . . . . . . . . . . . . . . . . 99
Brake System Warning Light . . . . . . . . . . 100 Electric Parking Brake Light . . . . . . . . . . . . 101
Service Electric Parking Brake Light . . . . 101
Antilock Brake System (ABS) Warning
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
All-Wheel-Drive Light . . . . . . . . . . . . . . . . . . 102
Sport Mode Light . . . . . . . . . . . . . . . . . . . . . . 102
Lane Keep Assist (LKA) Light . . . . . . . . . . . 102
Vehicle Ahead Indicator . . . . . . . . . . . . . . . 102
Pedestrian Ahead Indicator . . . . . . . . . . . . 103
Traction Off Light . . . . . . . . . . . . . . . . . . . . . . 103
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . 103
Traction Control System (TCS)/
StabiliTrak Light . . . . . . . . . . . . . . . . . . . . . 103
Tire Pressure Light . . . . . . . . . . . . . . . . . . . . 104
Engine Oil Pressure Light . . . . . . . . . . . . . . 104
Low Fuel Warning Light . . . . . . . . . . . . . . . 105
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 105
High-Beam On Light . . . . . . . . . . . . . . . . . . . 105
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . 105
Lamps On Reminder . . . . . . . . . . . . . . . . . . . 105
Cruise Control Light . . . . . . . . . . . . . . . . . . . 106
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . 106
Information Displays
Driver Information Center (DIC) (Base Level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Driver Information Center (DIC) (Uplevel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . . . . . . . . . . . 110
Engine Power Messages . . . . . . . . . . . . . . . 110
Vehicle Speed Messages . . . . . . . . . . . . . . . . 111

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Index 347
IndexA
About Driving the Vehicle . . . . . . . . . . . . . . . . . .3
Accessories and Modifications . . . . . . . . . . . 239
Accessory Power . . . . . . . . . . . . . . . . . . . . . . . . . 192
AdaptiveCruise Control . . . . . . . . . . . . . . . . . . . . . . . . . 205
Add-On Electrical Equipment . . . . . . . . . . . . . 237
Additional OnStar Information . . . . . . . . . . . . . . . . . . . . 341
Adjustments
Lumbar, Front Seats . . . . . . . . . . . . . . . . . . . . 41
Agreements Trademarks and License . . . . . . . . . . . . . . . 159
Air
Cleaner/Filter, Engine . . . . . . . . . . . . . . . . . . 248
Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Filter Life System . . . . . . . . . . . . . . . . . . . . . . 248
Filter, Passenger Compartment . . . . . . . . . 172
Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Air Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . 167
Airbag System . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52 Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
How Does an Airbag Restrain? . . . . . . . . . . 56
Passenger Sensing System . . . . . . . . . . . . . . 58
What Makes an Airbag Inflate? . . . . . . . . . 56
What Will You See after an AirbagInflates? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
When Should an Airbag Inflate? . . . . . . . . 55 Airbag System (cont'd)
Where Are the Airbags? . . . . . . . . . . . . . . . . 54
Airbags Adding Equipment to the Vehicle . . . . . . . 61
Passenger Status Indicator . . . . . . . . . . . . . . 98
Readiness Light . . . . . . . . . . . . . . . . . . . . . . . . . 97
Replacing System Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Servicing Airbag-Equipped Vehicles . . . . . . 61
Alarm Vehicle Security . . . . . . . . . . . . . . . . . . . . . . . . 30
Alert
Lane Change . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Rear Cross Traffic . . . . . . . . . . . . . . . . . . . . . . . 217
Side Blind Zone (SBZA) . . . . . . . . . . . . . . . . . 222
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 277
All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . .197, 258
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
AM-FM Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
Antenna Multi-band . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Antilock Brake System (ABS) . . . . . . . . . . . . . 198 Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . 101
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
354 Index
Online Account . . . . . . . . . . . . . . . . . . . . . . . . . . 329
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338Additional Information . . . . . . . . . . . . . . . . . 341
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339
OnStar Emergency . . . . . . . . . . . . . . . . . . . . . . . 340
OnStar Security . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Overheating, Engine . . . . . . . . . . . . . . . . . . . . . 254
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Instrument Panel . . . . . . . . . . . . . . . . . . . . . . . . 5
P
Park
Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215, 216
Shifting Into . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Shifting Out of . . . . . . . . . . . . . . . . . . . . . . . . 193
Parking Brake and P (Park) MechanismCheck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Extended . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Over Things That Burn . . . . . . . . . . . . . . . . . 194
Parking or Backing Assistance Systems . . . . . . . . . . . . . . . . . . . . 215
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . 98
Compartment Air Filter . . . . . . . . . . . . . . . . . 172
Sensing System . . . . . . . . . . . . . . . . . . . . . . . . . 58 Pedestrian Ahead Indicator . . . . . . . . . . . . . . 103
Perchlorate Materials Requirements,
California . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Phone Apple CarPlay and Android Auto . . . . . . . . 151
Bluetooth . . . . . . . . . . . . . . . . . . . . . . . . . . 147, 148
Port
USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Positioning Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Power
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Protection, Battery . . . . . . . . . . . . . . . . . . . . . . 118
Retained Accessory (RAP) . . . . . . . . . . . . . . 192
Seat Adjustment . . . . . . . . . . . . . . . . . . . . . . . . 39
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Pregnancy, Using Seat Belts . . . . . . . . . . . . . . 50
Privacy Vehicle Data Recording . . . . . . . . . . . . . . . . 336
Problems with Route Guidance . . . . . . . . . . . 141
Program Courtesy Transportation . . . . . . . . . . . . . . . 332
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . . . 226
Proposition 65 Warning
California . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Proposition 65 Warning, California . . . . . . . 299
Publication Ordering Information . . . . . . . . 335
R
Radiator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Radio
AM-FM Radio . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Data System (RDS) . . . . . . . . . . . . . . . . . . . . . 126
Frequency Statement . . . . . . . . . . . . . . . . . . 335
HD Radio Technology . . . . . . . . . . . . . . . . . . 125
Reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Satellite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Reading Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Rear Cross Traffic Alert (RCTA) System . . . . . . . 217
Seat Armrest . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Vision Camera (RVC) . . . . . . . . . . . . . . . . . . . 215
Window Washer/Wiper . . . . . . . . . . . . . . . . . 87
Rear Compartment/Storage Panel Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Rearview Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . .33 Automatic Dimming . . . . . . . . . . . . . . . . . . . . 33
Reclining Seatbacks . . . . . . . . . . . . . . . . . . . . . . . 40
Recognition Voice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Recommended Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226