Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
60 Seats and Restraints
Adding Equipment to the
Airbag-Equipped Vehicle
Adding accessories that change the vehicle's
frame, bumper system, height, front end,
or side sheet metal may keep the airbag
system from working properly.
The operation of the airbag system can also
be affected by changing, including
improperly repairing or replacing, any parts
of the following:
.Airbag system, including airbag modules,
front or side impact sensors, sensing and
diagnostic module, or airbag wiring
.Front seats, including stitching, seams or
zippers
.Seat belts
.Steering wheel, instrument panel,
overhead console, ceiling trim, or pillar
garnish trim
.Inner door seals, including speakers
Your dealer and the service manual have
information about the location of the airbag
modules and sensors, sensing and diagnostic
module, and airbag wiring along with the
proper replacement procedures. In addition, the vehicle has a passenger
sensing system for the front outboard
passenger position, which includes sensors
that are part of the passenger's seat. The
passenger sensing system may not operate
properly if the original seat trim is replaced
with non-GM covers, upholstery, or trim,
or with GM covers, upholstery, or trim
designed for a different vehicle. Any object,
such as an aftermarket seat heater or a
comfort enhancing pad or device, installed
under or on top of the seat fabric, could
also interfere with the operation of the
passenger sensing system. This could either
prevent proper deployment of the passenger
airbag(s) or prevent the passenger sensing
system from properly turning off the
passenger airbag(s). See
Passenger Sensing
System 056.
If the vehicle has rollover roof-rail airbags,
see Different Size Tires and Wheels 0293 for
additional important information.
If the vehicle must be modified because you
have a disability and you have questions
about whether the modifications will affect
the vehicle's airbag system, or if you have
questions about whether the airbag system will be affected if the vehicle is modified for
any other reason, call Customer Assistance.
See
Customer Assistance Offices 0334.
Airbag System Check
The airbag system does not need regularly
scheduled maintenance or replacement.
Make sure the airbag readiness light is
working. See Airbag Readiness Light 095.
Caution
If an airbag covering is damaged, opened,
or broken, the airbag may not work
properly. Do not open or break the airbag
coverings. If there are any opened or
broken airbag coverings, have the airbag
covering and/or airbag module replaced.
For the location of the airbags, see Where
Are the Airbags? 052. See your dealer for
service.
Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
78 Storage
Storage
Storage Compartments
Storage Compartments . . . . . . . . . . . . . . . . . 78
Instrument Panel Storage . . . . . . . . . . . . . . 78
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Center Console Storage . . . . . . . . . . . . . . . . . 79
Additional Storage Features
Rear Compartment/Storage PanelCover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . . . . 79
Cargo Management System . . . . . . . . . . . . 80
Roof Rack System
Roof Rack System . . . . . . . . . . . . . . . . . . . . . . 80
Storage Compartments
{
Warning
Do not store heavy or sharp objects in
storage compartments. In a crash, these
objects may cause the cover to open and
could result in injury.
Instrument Panel Storage
There is storage in the instrument panel.
Pull out the storage compartment to access
the fuse block behind.
Glove Box
Lift up on the glove box lever to open it.
Cupholders
Two cupholders are in the center console.
Cupholders may be located in the rear seat
armrest. To access, pull the armrest down.
Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Instruments and Controls 97
Caution
If the vehicle is driven continually with
this light on, the emission control system
may not work as well, the fuel economy
may be lower, and the vehicle may not
run smoothly. This could lead to costly
repairs that might not be covered by the
vehicle warranty.
Caution
Modifications to the engine, transmission,
exhaust, intake, or fuel system, or the
use of replacement tires that do not
meet the original tire specifications, can
cause this light to come on. This could
lead to costly repairs not covered by the
vehicle warranty. This could also affect
the vehicle’s ability to pass an Emissions
Inspection/Maintenance test. See
Accessories and Modifications0245.
If the light is flashing : A malfunction has
been detected that could damage the
emission control system and increase vehicle
emissions. Diagnosis and service may be
required. To help prevent damage, reduce vehicle
speed and avoid hard accelerations and
uphill grades. If towing a trailer, reduce the
amount of cargo being hauled as soon as
possible.
If the light continues to flash, find a safe
place to park. Turn the vehicle off and wait
at least 10 seconds before restarting the
engine. If the light is still flashing, follow
the previous guidelines and see your dealer
for service as soon as possible.
If the light is on steady :
A malfunction has
been detected. Diagnosis and service may be
required.
Check the following:
.A loose or missing fuel cap may cause
the light to come on. The diagnostic
system can detect if the fuel cap has
been left off or improperly installed. This
would allow fuel to evaporate into the
atmosphere. See Filling the Tank0232 A
few driving trips with the cap properly
installed may turn the light off.
.Poor fuel quality can cause inefficient
engine operation and poor driveability,
which may go away once the engine is
warmed up. If this occurs, change the fuel brand. It may require at least one full
tank of the proper fuel to turn the light
off. See
Recommended Fuel 0231.
If the light remains on, see your dealer.
Emissions Inspection and Maintenance
Programs
If the vehicle requires an Emissions
Inspection/Maintenance test, the test
equipment will likely connect to the
vehicle's Data Link Connector (DLC).
The DLC is under the instrument panel to
the left of the steering wheel. Connecting
devices that are not used to perform an
Emissions Inspection/Maintenance test or to
service the vehicle may affect vehicle
operation. See Add-On Electrical Equipment
0 241. See your dealer if assistance is
needed.
The vehicle may not pass inspection if:
.The light is on when the engine is
running.
Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
114 Lighting
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . . . . . . . . . . . 114
Headlamp High/Low-Beam Changer . . . . 115
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Daytime Running Lamps (DRL) . . . . . . . . . 116
Automatic Headlamp System . . . . . . . . . . 116
Hazard Warning Flashers . . . . . . . . . . . . . . . 117
Turn and Lane-Change Signals . . . . . . . . . . 117
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Interior Lighting
Instrument Panel IlluminationControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Courtesy Lamps . . . . . . . . . . . . . . . . . . . . . . . . 118
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Reading Lamps . . . . . . . . . . . . . . . . . . . . . . . . . 118
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . 119
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Battery Load Management . . . . . . . . . . . . . 119
Battery Power Protection . . . . . . . . . . . . . . 120
Exterior Lighting Battery Saver . . . . . . . . 120
Exterior Lighting
Exterior Lamp Controls
The exterior lamp control is on the
instrument panel to the left of the steering
column.
There are four positions.
O: Turns the exterior lamps off and
deactivates the AUTO mode. Turn
Oagain
to reactivate the AUTO mode.
In Canada, the headlamps will automatically
reactivate when the vehicle is shifted out of
P (Park).
AUTO : Turns the exterior lamps on and off
automatically depending on outside lighting.
;: Turns on the parking lamps including
all lamps, except the headlamps.
5: Turns on the headlamps together with
the parking lamps and instrument panel
lights.
IntelliBeam®System
If equipped, this system turns the vehicle's
high-beam headlamps on and off according
to surrounding traffic conditions.
The system turns the high-beam headlamps
on when it is dark enough and there is no
other traffic present.
This light comes on in the instrument
cluster when the IntelliBeam system is
enabled.
Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
116 Lighting
This indicator light turns on in the
instrument cluster when the high-beam
headlamps are on.
Flash-to-Pass
The flash-to-pass feature works with the low
beams or Daytime Running Lamps (DRL) on
or off.
To flash the high beams, pull the turn signal
lever toward you momentarily and then
release it.
Daytime Running Lamps (DRL)
DRL can make it easier for others to see the
front of your vehicle during the day. Fully
functional DRL are required on all vehicles
first sold in Canada.
The DRL system comes on in daylight when
the following conditions are met:
.The ignition is on.
.The exterior lamp control is in AUTO.
.The light sensor determines it is daytime.
When the DRL are on, the taillamps,
sidemarker lamps, instrument panel lights,
and other lamps will not be on. The DRL turn off when the headlamps are
turned to
Oor the ignition is off. For
vehicles sold in Canada, this control only
works when the vehicle is parked.
The regular headlamp system should be
turned on when needed.
Automatic Headlamp System
When the exterior lamp control is set to
AUTO and it is dark enough outside, the
headlamps come on automatically.
There is a light sensor on top of the
instrument panel. Do not cover the sensor;
otherwise the headlamps will come on when
they are not needed. The system may also turn on the headlamps
when driving through a parking garage or
tunnel.
When it is bright enough outside, the
headlamps will turn off or may change
to DRL.
The automatic headlamp system turns off
when the exterior lamp control is turned to
Oor the ignition is off.
Lights On with Wipers
If the windshield wipers are activated in
daylight with the engine on, and the
exterior lamp control is in AUTO, the
headlamps, parking lamps, and other
exterior lamps come on. The transition time
for the lamps coming on varies based on
wiper speed. When the wipers are not
operating, these lamps turn off. Move the
exterior lamp control to
Oor;to disable
this feature.
Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Lighting 117
Hazard Warning Flashers
|:Press to make the front and rear turn
signal lamps flash on and off. This warns
others that you are having trouble.
Press
|again to turn the flashers off.
Turn and Lane-Change Signals
Move the lever all the way up or down to
signal a turn.
An arrow on the instrument cluster will
flash in the direction of the turn or lane
change.
Raise or lower the lever until the arrow
starts to flash to signal a lane change. Hold
it there until the lane change is complete.
If the lever is moved momentarily to the
lane change position, the arrow will flash
three times. It will flash six times if Tow/
Haul Mode is active.
The lever returns to its starting position
when it is released.
If after signaling a turn or lane change, the
arrow flashes rapidly or does not come on, a
signal bulb may be burned out.
Have any burned out bulbs replaced. If a
bulb is not burned out, check the fuse. See
Instrument Panel Fuse Block 0277.Fog Lamps
The fog lamps button is on the instrument
panel beside the steering wheel.
To turn on the fog lamps, the ignition and
the headlamps or parking lamps must be on.
#:If equipped, press to turn on or off. An
indicator light on the instrument cluster
comes on when the fog lamps are on.
Some localities have laws that require the
headlamps to be on along with the fog
lamps.
Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
118 Lighting
Interior Lighting
Instrument Panel Illumination
Control
The brightness of the instrument cluster
display, infotainment display and controls,
steering wheel controls, and all other
illuminated controls, as well as feature
status indicators can be adjusted.
The knob for this feature is on the
instrument panel beside the steering
column.
Push the knob in all the way until it extends
out and then turn the knob clockwise or
counterclockwise to brighten or dim the
lights.
Courtesy Lamps
Courtesy lamps come on when any door is
opened, the
Kon the remote key is
pressed, or when the ignition is
switched off.
Dome Lamps
The front dome lamp controls are in the
overhead console.
(: Press to turn the lamps off, even when
a door is open.
H: When the button is returned to the
middle position, the lamps turn on
automatically when a door is opened.
': Press to turn on the dome lamps.
If equipped, the rear dome lamp controls are
in the headliner above the rear seats.
Reading Lamps
There are reading lamps on the overhead
console and over the rear seats. These lamps
come on when any door is opened.
Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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Climate Controls 175
3. MAX Defrost
4. Rear Window Defogger
5. Fan Control
6. Driver and Passenger Heated Seats (IfEquipped)
7. Recirculation
8. . A/C (Air Conditioning)
]: Turn the knob clockwise or
counterclockwise to increase or decrease the
fan speed or turn the fan off.
Temperature Control : Turn the knob
clockwise or counterclockwise to increase or
decrease the temperature.
Air Delivery Mode Controls : Press
z,Y,
or
6to change the direction of the airflow.
The indicator light in the button will turn
on. Any combination of the three buttons
can be selected. The indicator light in the
button will turn on.
To change the current mode, select one or
more of the following:
z: Clears the windows of fog or moisture.
Air is directed to the windshield.
Y: Air is directed to the instrument panel
outlets.
6: Air is directed to the floor outlets.
0MAX : Air is directed to the windshield
and the fan runs at a higher speed. Fog or
frost is cleared from the windshield more
quickly. When the button is pressed again,
the system returns to the previous mode
setting.
For best results, clear all snow and ice from
the windshield before defrosting.
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.
@: 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.
Rear Window Defogger
K: 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 defogger can be turned off by turning
the ignition off or to ACC/ACCESSORY. 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 031.
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.
MorL:If equipped, pressMorLto
heat the driver or passenger seat. See
Heated Front Seats 040.