2023 CHEVROLET TRAILBLAZER rear view mirror

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Driving and Operating 223
The LCA sensor covers a zone of
approximately one lane over from both
sides of the vehicle, or 3.5 m (11 ft). The
height of the zone is approximately between
0.5 m (1.5 ft) and 2 m (6 ft) off the ground.
The Side Blind Zone Alert (SBZA) warning
area starts at approximately the middle of
the vehicle and goes back 5 m (16 ft). Drivers
are also warned of vehicles rapidly
approaching from up to 70 m (230 ft) behind
the vehicle.
How the System Works
The LCA symbol lights up in the outside
mirrors when the system detects a moving
vehicle in the next lane over that is in the
side blind zone or rapidly approaching that
zone from behind. A lit LCA symbol indicates
it may be unsafe to change lanes. Before
making a lane change, check the LCA
display, check mirrors, glance over your
shoulder, and use the turn signals.
Left Outside MirrorDisplayRight Outside Mirror Display When the vehicle is started, both outside
mirror LCA displays will briefly come on to
indicate the system is operating. When the
vehicle is in a forward gear, the left or right
outside mirror display will light up if a
moving vehicle is detected in the next lane
over in that blind zone or rapidly
approaching that zone. If the turn signal is
activated in the same direction as a
detected vehicle, this display will flash as an
extra warning not to change lanes.
LCA can be disabled. When you disable LCA,
Side Blind Zone Alert is also disabled. To
view available settings from the
infotainment screen, touch Settings >
Vehicle > Collision/Detection Systems. If LCA
is disabled by the driver, the LCA mirror
displays will not light up.
When the System Does Not Seem to
Work Properly
The LCA system requires some driving for
the system to calibrate to maximum
performance. This calibration may occur
more quickly if the vehicle is driving on a
straight highway road with traffic and
roadside objects (e.g., guardrails, barriers).
LCA displays may not come on when
passing a vehicle quickly, for a stopped
vehicle, or when towing a trailer. The LCA
detection zones that extend back from the
side of the vehicle do not move further back
when a trailer is towed. Use caution while
changing lanes when towing a trailer. LCA
may alert to objects attached to the vehicle,
such as a trailer, bicycle, or object extending
out to either side of the vehicle. Attached
objects may also interfere with the
detection of vehicles. This is normal system
operation; the vehicle does not need service.
LCA may not always alert the driver to
vehicles in the next lane over, especially in
wet conditions or when driving on sharp
curves. The system does not need to be
serviced. The system may light up due to
guardrails, signs, trees, shrubs, and other
non-moving objects. This is normal system
operation; the vehicle does not need service.
LCA may not operate when the LCA sensors
in the left or right corners of the rear
bumper are covered with mud, dirt, snow,
ice, or slush, or in heavy rainstorms. For
cleaning instructions, see "Washing the
Vehicle" under
Exterior Care0305. If the
DIC still displays the system unavailable

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Driving and Operating 225
{Warning
LKA will not alert the driver if a towed
trailer crosses into an adjacent lane of
travel. Serious injury or property damage
may occur if the trailer moves into
another lane. Always monitor the trailer
position while towing to make sure it is
within the same lane as the tow vehicle.
How the System Works
LKA uses a camera sensor installed on the
windshield ahead of the rearview mirror to
detect lane markings. It may provide brief
steering assist if it detects an unintended
lane departure. It may further provide an
audible alert or the driver seat may pulse
indicating that a lane marking has been
crossed. The system does not provide a Lane
Departure Warning (LDW) when
intentionally steering across a lane marker.
To turn LKA on and off, press
Aon the
center console. If equipped, the indicator
light on the button comes on when LKA is
on and turns off when LKA is disabled. On
some vehicles, a long press of over
three seconds is required to turn LKA off. When on,
Ais white, if equipped,
indicating that the system is not ready to
assist.
Ais green if LKA is ready to
assist. LKA may assist by gently turning the
steering wheel if the vehicle approaches a
detected lane marking.
Ais amber when
assisting. It may also provide a Lane
Departure Warning (LDW) alert by flashing
Aamber if the vehicle crosses a
detected lane marking. Additionally, there
may be three beeps, or the driver seat may
pulse three times, on the right or left,
depending on the lane departure direction.
Take Steering
The LKA system does not continuously steer
the vehicle. If LKA does not detect active
driver steering, an alert and chime may be
provided. Steer the vehicle to dismiss. LKA
may become temporarily unavailable after
repeated take steering alerts.
When the System Does Not Seem to
Work Properly
The system performance may be
affected by:
.Close vehicles ahead.
.Sudden lighting changes, such as when
driving through tunnels.
.Banked roads.
.Roads with poor lane markings, such as
two-lane roads.
If the LKA system is not functioning
properly when lane markings are clearly
visible, cleaning the windshield may help.
A camera blocked message may display if
the camera is blocked. Some driver
assistance systems may have reduced
performance or not work at all. An LKA or
LDW unavailable message may display if the
systems are temporarily unavailable. This
message could be due to a blocked camera.
The LKA system does not need service. Clean
the outside of the windshield behind the
rearview mirror.
LKA assistance and/or LDW alerts may occur
due to tar marks, shadows, cracks in the
road, temporary or construction lane
markings, or other road imperfections. This
is normal system operation; the vehicle does
not need service. Turn LKA off if these
conditions continue.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Driving and Operating 229
Driving Characteristics and
Towing Tips
{Warning
You can lose control when towing a
trailer if the correct equipment is not
used or the vehicle is not driven properly.
For example, if the trailer is too heavy or
the trailer brakes are inadequate for the
load, the vehicle may not stop as
expected. You and others could be
seriously injured. The vehicle may also be
damaged, and the repairs would not be
covered by the vehicle warranty. Pull a
trailer only if all the steps in this section
have been followed. Ask your dealer for
advice and information about towing a
trailer with the vehicle.
Driving with a Trailer
Trailering is different than just driving the
vehicle by itself. Trailering means changes in
handling, acceleration, braking, durability,
and fuel economy. Successful, safe trailering
takes correct equipment, and it has to be
used properly.The following information has many
time-tested, important trailering tips and
safety rules. Many of these are important
for your safety and that of your passengers.
Read this section carefully before pulling a
trailer.
When towing a trailer:
.Become familiar with and follow all state
and local laws that apply to trailer
towing. These requirements vary from
state to state.
.State laws may require the use of
extended side view mirrors. Even if not
required, you should install extended side
view mirrors if your visibility is limited or
restricted while towing.
.Do not tow a trailer during the first
800 km (500 mi) of vehicle use to
prevent damage to the engine, axle,
or other parts.
.It is recommended to perform the first oil
change before heavy towing.
.During the first 800 km (500 mi) of
trailer towing, do not drive over 80 km/h
(50 mph) and do not make starts at full
throttle.
.Vehicles can tow in D (Drive). If the
transmission downshifts too often, a
lower gear may be selected using Manual
Mode See
Manual Mode 0196.
If equipped, the following driver assistance
features should be turned off when towing
a trailer:
.Adaptive Cruise Control (ACC)
.Super Cruise Control
.Lane Keep Assist (LKA)
.Park Assist
If equipped, the following driver assistance
features should be turned to alert or off
when towing a trailer:
.Automatic Emergency Braking (AEB)
.Intelligent Brake Assist (IBA)
.Front Pedestrian Braking (FPB)
If equipped with Lane Change Alert (LCA),
the LCA detection zones that extend back
from the side of the vehicle do not move
further back when a trailer is towed. Use
caution while changing lanes when towing a
trailer.
If equipped with Rear Cross Traffic Alert
(RCTA), use caution while backing up when
towing a trailer, as the RCTA detection zones

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
352 Index
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .167, 169
High-Beam On Light . . . . . . . . . . . . . . . . . . . . . 105
Hill and Mountain Roads . . . . . . . . . . . . . . . . .178
Hill Start Assist (HSA) . . . . . . . . . . . . . . . . . . . . 200
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
How to Wear Seat Belts Properly . . . . . . . . . 46
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .167, 169
I
If the System Needs Service . . . . . . . . . . . . . . 141
Ignition Positions . . . . . . . . . . . . . . . . . . . .184, 186
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
IndicatorPedestrian Ahead . . . . . . . . . . . . . . . . . . . . . . 103
Vehicle Ahead . . . . . . . . . . . . . . . . . . . . . . . . . 102
Indicators
Warning Lights and Gauges . . . . . . . . . . . . . 92
Infants and Young Children, Restraints . . . . 64
Information Publication Ordering . . . . . . . . . . . . . . . . . . . 335
Infotainment Using the System . . . . . . . . . . . . . . . . . . . . . . . 121
Infotainment System . . . . . . . . . . . . . . . . . . . . 338
Inspection Multi-Point Vehicle . . . . . . . . . . . . . . . . . . . . . 317
Instrument Cluster . . . . . . . . . . . . . . . . . . . . . . . . 92 Instrument Panel
Storage Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Instrument Panel Overview . . . . . . . . . . . . . . . . .5
Interior Rearview Mirrors . . . . . . . . . . . . . . . . . .32
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 2, 119
J
Jack Auxiliary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Jump Starting - North America . . . . . . . . . . . . . . . 299
K
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7, 9Remote . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Remote Operation . . . . . . . . . . . . . . . . . . . 10, 13
L
Labeling, Tire Sidewall . . . . . . . . . . . . . . . . . . . 278
LampsCourtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Daytime Running (DRL) . . . . . . . . . . . . . . . . . 114
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Exterior Controls . . . . . . . . . . . . . . . . . . . . . . . . 112
Exterior Lighting Battery Saver . . . . . . . . . 118
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Fog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
High/Low Beam Changer . . . . . . . . . . . . . . . 113 Lamps (cont'd)
Malfunction Indicator (Check
Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
On Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Lane Change Alert (LCA) . . . . . . . . . . . . . . . . . . . . . 222
Keep Assist (LKA) . . . . . . . . . . . . . . . . . . . . . . 224
Keep Assist Light . . . . . . . . . . . . . . . . . . . . . . 102
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . . . 48
LATCH System Replacing Parts after a Crash . . . . . . . . . . . 74
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Illumination Control . . . . . . . . . . . . . . . . . . . . 116
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Lights Airbag Readiness . . . . . . . . . . . . . . . . . . . . . . . 97
All-Wheel-Drive . . . . . . . . . . . . . . . . . . . . . . . . 102
Antilock Brake System (ABS)Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Brake System Warning . . . . . . . . . . . . . . . . 100
Charging System . . . . . . . . . . . . . . . . . . . . . . . 99

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Index 353
Lights (cont'd)Check Engine (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Cruise Control Light . . . . . . . . . . . . . . . . . . . . 106
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Electric Parking Brake . . . . . . . . . . . . . . . . . . 101
Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . 104
Front Fog Lamp . . . . . . . . . . . . . . . . . . . . . . . . 105
Gauges and Indicators . . . . . . . . . . . . . . . . . . 92
High-Beam On . . . . . . . . . . . . . . . . . . . . . . . . . 105
Lane Keep Assist . . . . . . . . . . . . . . . . . . . . . . . 102
Low Fuel Warning . . . . . . . . . . . . . . . . . . . . . 105
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . . 97
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Service Electric Parking Brake . . . . . . . . . . 101
Sport Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
StabiliTrak OFF . . . . . . . . . . . . . . . . . . . . . . . . . 103
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Traction Control System (TCS)/StabiliTrak . . . . . . . . . . . . . . . . . . . . . 103
Traction Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Locks Automatic Door . . . . . . . . . . . . . . . . . . . . . . . . . 23
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 22
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . 23
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Low Fuel Warning Light . . . . . . . . . . . . . . . . . 105
Lower Anchors and Tethers for
Children (LATCH System) . . . . . . . . . . . . . . . . 69
Lumbar Adjustment . . . . . . . . . . . . . . . . . . . . . . . .41 Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
Maintenance Schedule . . . . . . . . . . . . . . . . . . . . 315 Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
Malfunction Indicator Lamp . . . . . . . . . . . . . . . 99
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Map Data Updates . . . . . . . . . . . . . . . . . . . . . . . .142
Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134
Media
Avoiding Untrusted Devices . . . . . . . . . . . . . 127
Messages
Engine Power . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Vehicle Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Mirrors Automatic Dimming Rearview . . . . . . . . . . 33
Convex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Folding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Mirrors (cont'd)
Heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Interior Rearview . . . . . . . . . . . . . . . . . . . . . . . 32
Manual Rearview . . . . . . . . . . . . . . . . . . . . . . . 33
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Mode Driver Control . . . . . . . . . . . . . . . . . . . . . . . . . 202
Monitor System, Tire Pressure . . . . . . . . . . . 283
Multi-band Antenna . . . . . . . . . . . . . . . . . . . . . . 127
Multi-Point Vehicle Inspection (MPVI) . . . . . 317
N
Navigation Connected Services . . . . . . . . . . . . . . . . . . . . 344
Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Using the System . . . . . . . . . . . . . . . . . . . . . . . 131
New Vehicle Break-In . . . . . . . . . . . . . . . . . . . . 184
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Engine Oil Life System . . . . . . . . . . . . . . . . . 247
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . 104
Older Children, Restraints . . . . . . . . . . . . . . . . . 63

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