high beam CHEVROLET TRAILBLAZER 2021 Owner's Manual

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
82 Instruments and Controls
Instruments and Controls
Controls
Steering Wheel Adjustment . . . . . . . . . . . . 83
Steering Wheel Controls . . . . . . . . . . . . . . . . 83
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Windshield Wiper/Washer . . . . . . . . . . . . . . 83
Rear Window Wiper/Washer . . . . . . . . . . . 84
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Power Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Wireless Charging . . . . . . . . . . . . . . . . . . . . . . 86
Warning Lights, Gauges, and Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Instrument Cluster . . . . . . . . . . . . . . . . . . . . . 89
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . 93
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Engine Coolant Temperature Gauge . . . . 94
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . . 94
Airbag Readiness Light . . . . . . . . . . . . . . . . . 95
Passenger Airbag Status Indicator . . . . . . 95
Charging System Light . . . . . . . . . . . . . . . . . 96
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . . . . . . . . . . . . . . . . . . 96 Brake System Warning Light . . . . . . . . . . . 98
Electric Parking Brake Light . . . . . . . . . . . . . 98
Service Electric Parking Brake Light . . . . . 99
Antilock Brake System (ABS) Warning
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
All-Wheel-Drive Light . . . . . . . . . . . . . . . . . . . 99
Sport Mode Light . . . . . . . . . . . . . . . . . . . . . 100
Lane Keep Assist (LKA) Light . . . . . . . . . . 100
Vehicle Ahead Indicator . . . . . . . . . . . . . . . 100
Pedestrian Ahead Indicator . . . . . . . . . . . . 100
Traction Off Light . . . . . . . . . . . . . . . . . . . . . 100
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . 101
Traction Control System (TCS)/ StabiliTrak Light . . . . . . . . . . . . . . . . . . . . . . 101
Tire Pressure Light . . . . . . . . . . . . . . . . . . . . . 101
Engine Oil Pressure Light . . . . . . . . . . . . . . 102
Low Fuel Warning Light . . . . . . . . . . . . . . . 102
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 102
High-Beam On Light . . . . . . . . . . . . . . . . . . . 103
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . 103
Lamps On Reminder . . . . . . . . . . . . . . . . . . . 103
Cruise Control Light . . . . . . . . . . . . . . . . . . . 103
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . 104
Information Displays
Driver Information Center (DIC) (Base Level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Driver Information Center (DIC) (Uplevel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . . . . . . . . . . 109
Engine Power Messages . . . . . . . . . . . . . . . 110
Vehicle Speed Messages . . . . . . . . . . . . . . . 110
Vehicle Personalization
Vehicle Personalization . . . . . . . . . . . . . . . . . 110

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Instruments and Controls 103
If the light stays on and the engine does
not start, there could be a problem with the
theft-deterrent system. SeeImmobilizer
Operation 030.
High-Beam On Light
This light comes on when the high-beam
headlamps are in use. See Headlamp High/
Low-Beam Changer 0115.
IntelliBeam Light
This light comes on when the IntelliBeam
system, if equipped, is enabled. See Exterior
Lamp Controls 0114.
Front Fog Lamp Light
For vehicles with front fog lamps, this light
comes on when the front fog lamps are
in use.
The light goes out when the front fog lamps
are turned off. See Fog Lamps0117
0for
more information.
Lamps On Reminder
This light comes on when the exterior lamps
are in use. See Exterior Lamp Controls 0114.
Cruise Control Light
The cruise control light is white when the
cruise control is on and ready, and turns
green when the cruise control is set and
active.
See Cruise Control 0209.
Adaptive Cruise Control Light
This light is white when the Adaptive Cruise
Control (ACC, if equipped) is on and ready,
and turns green when the ACC is set and
active. See Adaptive Cruise Control (Camera)
0 211.

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
Lighting 115
Turning On and Enabling IntelliBeam
To enable the IntelliBeam system, press
bon the turn signal lever when it is
dark outside and the exterior lamp control is
in AUTO or
5. The blue high-beam on light
appears on the instrument cluster when the
high beams are on.
Driving with IntelliBeam
The system only activates the high beams
when driving over 40 km/h (25 mph).
There is a sensor near the top center of the
windshield that automatically controls the
system. Keep this area of the windshield
clear of debris to allow for best system
performance. The high-beam headlamps remain on, under
the automatic control, until one of the
following situations occurs:
.The system detects an approaching
vehicle's headlamps.
.The system detects a preceding vehicle's
taillamps.
.The outside light is bright enough that
high-beam headlamps are not required.
.The vehicle's speed drops below 20 km/h
(12 mph).
.The IntelliBeam system is disabled by the
button on the turn signal lever. If this
happens, press
bon the turn signal
lever when the exterior lamp control is in
the AUTO or
5position to reactivate the
IntelliBeam system. The instrument
cluster light will come on to indicate the
IntelliBeam system is reactivated.
The high beams may not turn off
automatically if the system cannot detect
another vehicle's lamps because of any of
the following:
.The other vehicle's lamps are missing,
damaged, obstructed from view,
or otherwise undetected.
.The other vehicle's lamps are covered
with dirt, snow, and/or road spray.
.The other vehicle's lamps cannot be
detected due to dense exhaust, smoke,
fog, snow, road spray, mist, or other
airborne obstructions.
.The vehicle's windshield is dirty, cracked,
or obstructed by something that blocks
the view of the light sensor.
.The vehicle is loaded such that the front
end points upward, causing the light
sensor to aim high and not detect
headlamps and taillamps.
.The vehicle is being driven on winding or
hilly roads.
The IntelliBeam system may need to be
disabled if any of the above conditions exist.
Headlamp High/Low-Beam
Changer
Push the turn signal lever away from you
and release, to turn the high beams on. To
return to low beams, push the lever again
or pull it toward you and release.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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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
120 Lighting
When the battery's state of charge is low,
the voltage is raised slightly to quickly bring
the charge back up. When the state of
charge is high, the voltage is lowered
slightly to prevent overcharging. If the
vehicle has a voltmeter gauge or a voltage
display on the Driver Information Center
(DIC), you may see the voltage move up or
down. This is normal. If there is a problem,
an alert will be displayed.
The battery can be discharged at idle if the
electrical loads are very high. This is true for
all vehicles. This is because the generator
(alternator) may not be spinning fast
enough at idle to produce all of the power
needed for very high electrical loads.
A high electrical load occurs when several of
the following are on, such as: headlamps,
high beams, rear window defogger, climate
control fan at high speed, heated seats,
engine cooling fans, trailer loads, and loads
plugged into accessory power outlets.
EPM works to prevent excessive discharge of
the battery. It does this by balancing the
generator's output and the vehicle's
electrical needs. It can increase engine idle
speed to generate more power whenever
needed. It can temporarily reduce the power
demands of some accessories.Normally, these actions occur in steps or
levels, without being noticeable. In rare
cases at the highest levels of corrective
action, this action may be noticeable to the
driver. If so, a DIC message might be
displayed and it is recommended that the
driver reduce the electrical loads as much as
possible.
Battery Power Protection
This feature shuts off the interior lamps if
they are left on for more than 10 minutes
when the ignition is off. This helps to
prevent the battery from running down.
Exterior Lighting Battery Saver
The exterior lamps turn off about 10 minutes
after the ignition is turned off, if the parking
lamps or headlamps have been manually
left on. This protects against draining the
battery. To restart the 10-minute timer, turn
the exterior lamp control to the off position
and then back to the parking lamp or
headlamp position.
To keep the lamps on for more than
10 minutes, the ignition must be on or
in ACC/ACCESSORY.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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Driving and Operating 219
droplets from rain or snow that remain on
the windshield may also limit ACC’s ability
to detect objects.
Lighting Conditions Affecting ACC
The ACC front camera can be affected by
poor lighting conditions, and ACC may have
limited performance when:
.There are changes in brightness, such as
entering and exiting tunnels, bridges, and
overpasses.
.Low sun angles cause the camera to not
detect objects, or it is more difficult to
detect objects in the same traffic lane.
.Lighting is poor in the evening or early
morning
.There are multiple changes in brightness
or shadows along the vehicle roadway.
.In a tunnel without the headlamps on,
or in a tunnel when there is a vehicle in
front that does not have its taillamps on.
.Subjected to strong light from opposing
lane traffic in the front of the vehicle,
such as high-beam headlamps from
oncoming traffic.
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. SeeRoof Rack System 080.
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 can become blocked by
snow, ice, dirt, mud, or debris. This area
needs to be cleaned for ACC to operate
properly.
The vehicle headlamps may need to be
cleaned due to dirt, snow, or ice. Objects
that are not illuminated correctly may be
difficult to detect. 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 0307.
Driver Assistance Systems
This vehicle may be equipped with driver
assistance systems that operate using radio
frequency. See Radio Frequency Statement
0 340.
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.
(Continued)

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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Vehicle Care 267
Desiccant (If equipped)
This vehicle as equipped with desiccant to
reduce fogging inside the headlamp due to
moisture.
The desiccant is consumable and its
performance may change based on the used
period and environment.
If fogging inside the headlamp due to
moisture continues for a long time, see your
dealer for service.
Halogen Bulbs
{Warning
Halogen bulbs have pressurized gas inside
and can burst if you drop or scratch the
bulb. You or others could be injured. Be
sure to read and follow the instructions
on the bulb package.
LED Lighting
This vehicle has several LED lamps. For
replacement of any LED lighting assembly,
contact your dealer.
Headlamps, Front Turn Signal,
Sidemarker, and Parking Lamps
(Base Level)
Headlamp Assembly
DRL and Parking Lamps
The vehicle has LED DRL and parking lamps
on the headlamp assembly.
Low-beam headlamp, High-beam
headlamp and Front Turn Signal Lamps
Driver Side Shown, Passenger Side Similar
1. Front Turn Signal Lamp
2. High-beam Headlamp
3. Low-beam Headlamp
Low-Beam Headlamp and High-Beam
Headlamp 1. Remove the headlamp bulb access cover.
2. Turn the bulb counterclockwise and pull straight back.
3. Disconnect the wiring harness connector from the bulb.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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268 Vehicle Care
4. Install the new bulb in the headlampassembly by turning clockwise.
5. Reconnect the wiring harness connector.
6. Install the headlamp bulb access cover.
Front Turn Signal Lamp 1. Remove the bulb socket from the headlamp assembly.
2. Remove the old bulb from the bulb socket by pulling it straight out.
3. Insert a new bulb into the bulb socket.
4. Install the bulb socket into the taillamp assembly.Headlamps, Front Turn Signal,
Sidemarker, and Parking Lamps
(Uplevel)
Headlamp Assembly
Low-beam Headlamps, DRL and Parking
Lamps
The vehicle has LED low-beam headlamps
and DRL and parking lamps on the headlamp
assembly.
High-beam headlamp and Front Turn
Signal Lamps
Driver Side Shown, Passenger Side Similar
1. Front Turn Signal Lamp
2. High-beam Headlamp
High-Beam Headlamp 1. Remove the headlamp bulb access cover.
2. Turn the bulb counterclockwise and pull straight back.
3. Disconnect the wiring harness connector from the bulb.
4. Install the new bulb in the headlamp assembly by turning clockwise.
5. Reconnect the wiring harness connector.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Index 355
Fuel (cont'd)Economy, Driving for Better . . . . . . . . . . . . 181
Filling a Portable Fuel Container . . . . . . . .233
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . .232
Foreign Countries . . . . . . . . . . . . . . . . . . . . . . .232
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
Low Fuel Warning Light . . . . . . . . . . . . . . . .102
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . . 231
Recommended . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Fuses Engine Compartment Fuse Block . . . . . . . .274
Fuses and Circuit Breakers . . . . . . . . . . . . . .274
Instrument Panel Fuse Block . . . . . . . . . . . . 277
Rear Compartment Fuse Block . . . . . . . . . .278
G
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Gauges
Engine Coolant Temperature . . . . . . . . . . . . 94
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . .93
Warning Lights and Indicators . . . . . . . . . . 88
General Information Service and Maintenance . . . . . . . . . . . . . . . 315 General Information (cont'd)
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Global Positioning System (GPS) . . . . . . . . . .145
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
Guidance Problems with the Route . . . . . . . . . . . . . . . 145
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Hazard Warning Flashers . . . . . . . . . . . . . . . . . 117
HD Radio Technology . . . . . . . . . . . . . . . . . . . . .128
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . 266
Daytime Running Lamps (DRL) . . . . . . . . . . 116
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Headlamps, Front Turn Signal,
Sidemarker, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . 267, 268
High-Beam On Light . . . . . . . . . . . . . . . . . . . .103
High/Low Beam Changer . . . . . . . . . . . . . . . 115
Lamps On Reminder . . . . . . . . . . . . . . . . . . . .103
Heated Front Seats . . . . . . . . . . . . . . . . . . . . . . . 40 Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Heater
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .198
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174, 176
High-Beam On Light . . . . . . . . . . . . . . . . . . . . . 103
Hill and Mountain Roads . . . . . . . . . . . . . . . . .185
Hill Start Assist (HSA) . . . . . . . . . . . . . . . . . . . . 206
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
How to Wear Seat Belts Properly . . . . . . . . . 45
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174, 176
I
If the System Needs Service . . . . . . . . . . . . . 146
Ignition Positions . . . . . . . . . . . . . . . . . . . . 191, 192
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Indicator Pedestrian Ahead . . . . . . . . . . . . . . . . . . . . . . 100
Vehicle Ahead . . . . . . . . . . . . . . . . . . . . . . . . . 100
Infants and Young Children, Restraints . . . . 62
Information Publication Ordering . . . . . . . . . . . . . . . . . . . 339
Infotainment System . . . . . . . . . . . . . . . . . . . . 342
Instrument Cluster . . . . . . . . . . . . . . . . . . . . . . . . 89
Instrument Panel Storage Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Instrument Panel Overview . . . . . . . . . . . . . . . . 4
Interior Rearview Mirrors . . . . . . . . . . . . . . . . . . 31