2021 CHEVROLET TRAILBLAZER Owner's Manual

2021
chevrolet.com (U.S.)
chevrolet.ca (Canada)
Trailblazer
Owner’s Manual
2021 Trailblazer
Canada
My Chevrolet App
Download the my.Chevrolet App
for full manuals and “how to”
videos. The full owner’s manual is
located with your vehicle
infotainment system, if equipped.
84401923 A
M
fv
US
MyCertifiedService.com
Visit MyCertifiedService.com
to easily locate your nearest
dealer and schedule your next
service appointment online.
US ONLY
Roadside Assistance:
1-800-243-8872 Customer Assistance:
1-800-222-1020
United States:
Roadside Assistance:
1-800-268-6800
Customer Assistance:
1-800-263-3777
Canada:
Connected Services and OnStar:
1-888-4-ONSTAR
C
M
Y
CM
MY
CY
CMY
K
21_CHEV_Trailblazer_COV_en_US_84401923A_2019NOV08.ai 1 11/6/2019 7\
:42:21 AM 21_CHEV_Trailblazer_COV_en_US_84401923A_2019NOV08.ai 1 11/6/2019 7\
:42:21 AM

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Keys, Doors, and Windows . . . . . . . . . . . . . . . 6
Seats and Restraints . . . . . . . . . . . . . . . . . . . . . 36
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Instruments and Controls . . . . . . . . . . . . . . . 82
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Infotainment System . . . . . . . . . . . . . . . . . . . 121
Climate Controls . . . . . . . . . . . . . . . . . . . . . . . . 174
Driving and Operating . . . . . . . . . . . . . . . . . . 180
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Service and Maintenance . . . . . . . . . . . . . . . 315
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . 328
Customer Information . . . . . . . . . . . . . . . . . . 332
Reporting Safety Defects . . . . . . . . . . . . . . . 340
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343
Connected Services . . . . . . . . . . . . . . . . . . . . . 348
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . 351
Introduction
The names, logos, emblems, slogans, vehicle
model names, and vehicle body designs
appearing in this manual including, but not
limited to, GM, the GM logo, CHEVROLET,
the CHEVROLET Emblem, and TRAILBLAZER
are trademarks and/or service marks of
General Motors LLC, its subsidiaries,
affiliates, or licensors.
For vehicles first sold in Canada, substitute
the name“General Motors of Canada
Company” for Chevrolet Motor Division
wherever it appears in this manual.
This manual describes features that may or
may not be on the vehicle because of
optional equipment that was not purchased
on the vehicle, model variants, country
specifications, features/applications that may not be available in your region, or changes
subsequent to the printing of this owner’s
manual.
Refer to the purchase documentation
relating to your specific vehicle to confirm
the features.
Keep this manual in the vehicle for quick
reference.
Canadian Vehicle Owners
A French language manual can be obtained
from your dealer, at www.helminc.com,
or from:
Propriétaires Canadiens
On peut obtenir un exemplaire de ce guide
en français auprès du concessionnaire ou à
l'adresse suivante:
Helm, Incorporated
Attention: Customer Service
47911 Halyard Drive
Plymouth, MI 48170
USA
Litho in U.S.A.
Part No. 84401923 A First Printing©2019 General Motors LLC. All Rights Reserved.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
2 Introduction
Using this Manual
To quickly locate information about the
vehicle, use the Index in the back of the
manual. It is an alphabetical list of what is
in the manual and the page number where
it can be found.
About Driving the Vehicle
As with other vehicles of this type, failure to
operate this vehicle correctly may result in
loss of control or a crash. Be sure to read
the driving guidelines in this manual in the
section called“Driving and Operating” and
specifically Driver Behavior 0181, Driving
Environment 0181, and Vehicle Design 0181.
Danger, Warning, and Caution
Warning messages found on vehicle labels
and in this manual describe hazards and
what to do to avoid or reduce them.
{Danger
Danger indicates a hazard with a high
level of risk which will result in serious
injury or death.
{Warning
Warning indicates a hazard that could
result in injury or death.
Caution
Caution indicates a hazard that could
result in property or vehicle damage.
A circle with a slash through it is a safety
symbol which means “Do not,” “Do not do
this,” or“Do not let this happen.”
Symbols
The vehicle has components and labels that
use symbols instead of text. Symbols are
shown along with the text describing the
operation or information relating to a
specific component, control, message, gauge,
or indicator.
M:Shown when the owner’s manual has
additional instructions or information.
*: Shown when the service manual has
additional instructions or information.
0: Shown when there is more information
on another page — “see page.”
Vehicle Symbol Chart
Here are some additional symbols that may
be found on the vehicle and what they
mean. See the features in this manual for
information.
u: Air Conditioning System
G:Air Conditioning Refrigerant Oil
9:Airbag Readiness Light
!:Antilock Brake System (ABS)
$:Brake System Warning Light
9:Dispose of Used Components Properly
P:Do Not Apply High Pressure Water
B:Engine Coolant Temperature
_:Flame/Fire Prohibited
H: Flammable
[:Forward Collision Alert
R:Fuse Block Cover Lock Location

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Introduction 3
+:Fuses
j:ISOFIX/LATCH System Child Restraints
Q:Keep Fuse Block Covers Properly
Installed
|: Lane Change Alert
@:Lane Departure Warning
A:Lane Keep Assist
*: Malfunction Indicator Lamp
::Oil Pressure
X:Park Assist
~:Pedestrian Ahead Indicator
O:Power
7:Rear Cross Traffic Alert
I:Registered Technician
/:Remote Vehicle Start
>:Seat Belt Reminders
I:Side Blind Zone Alert
h:Stop/Start
7:Tire Pressure Monitor
d:Traction Control/StabiliTrak/Electronic
Stability Control (ESC)
a: Under Pressure
V: Vehicle Ahead Indicator

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
4 Introduction
Instrument Panel Overview

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Introduction 5
1.Air Vents 0178.
2. Turn Signal Lever. See Turn and
Lane-Change Signals 0117.
IntelliBeam System Button (If Equipped).
See Exterior Lamp Controls 0114.
3. Instrument Cluster 089.
Driver Information Center (DIC) Display.
See Driver Information Center (DIC) (Base
Level) 0104 or
Driver Information Center (DIC) (Uplevel)
0 107.
4. Windshield Wiper/Washer 083.
Rear Window Wiper/Washer 084.
5. Light Sensor. See Automatic Headlamp
System 0116.
6. Hazard Warning Flashers 0117.
7. Infotainment. See Overview0122.
8. Climate Control Systems 0174.
Automatic Climate Control System 0176.
Heated Front Seats 040. (If Equipped).
9. USB Port 0130.
Auxiliary Jack 0132.
10. Wireless Charging 086 (If Equipped).
11. Stop/Start Disable Button. See Stop/Start
System 0195 (If Equipped). Lane Keep Assist (LKA)
0229 (If
Equipped).
Traction Control/Electronic Stability
Control 0206.
Sport Mode (If Equipped). See Driver
Mode Control 0208
All-Wheel Drive 0203 (If Equipped).
12. Electric Parking Brake 0205.
13. Shift Lever. See Automatic Transmission
0 201.
14. Power Outlets 085.
15. Engine START/STOP Button. See Ignition
Positions (Key Access) 0191 or
Ignition Positions (Keyless Access) 0192
(If Equipped).
16. Steering Wheel Controls 083.
17. Horn 083.
18. Steering Wheel Adjustment 083 (Out
of View).
19. Cruise Control 0209.
Adaptive Cruise Control (Camera) 0211 (If
Equipped).
Forward Collision Alert (FCA) System
0 223 (If Equipped).
20. Hood Release. See Hood0245. 21. Data Link Connector (DLC) (Out of View).
SeeMalfunction Indicator Lamp (Check
Engine Light) 096.
22. Instrument Panel Storage 078.
Instrument Panel Fuse Block 0277.
23. Exterior Lamp Controls 0114.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
6 Keys, Doors, and Windows
Keys, Doors, and
Windows
Keys and Locks
Keys (Key Access) . . . . . . . . . . . . . . . . . . . . . . . 6
Keys (Keyless Access) . . . . . . . . . . . . . . . . . . . . 8
Remote Keyless Entry (RKE) System . . . . . 9
Remote Keyless Entry (RKE) SystemOperation (Key Access) . . . . . . . . . . . . . . . . 9
Remote Keyless Entry (RKE) System Operation (Keyless Access) . . . . . . . . . . . . 11
Remote Vehicle Start . . . . . . . . . . . . . . . . . . . 17
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Power Door Locks . . . . . . . . . . . . . . . . . . . . . . 20
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 21
Automatic Door Locks . . . . . . . . . . . . . . . . . . . 21
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . 21
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Doors
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . . . . . . . . . 29
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 29
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Immobilizer Operation . . . . . . . . . . . . . . . . . . 30
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 31
Power Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 31
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 31
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . . . . . . . 31
Manual Rearview Mirror . . . . . . . . . . . . . . . . 32
Automatic Dimming Rearview Mirror . . . 32
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Power Windows . . . . . . . . . . . . . . . . . . . . . . . . 32
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Keys and Locks
Keys (Key Access)
{Warning
Leaving children in a vehicle with the
ignition key is dangerous and children or
others could be seriously injured or killed.
They could operate the power windows
or other controls or make the vehicle
move. The windows will function with
the keys in the ignition, and children or
others could be caught in the path of a
closing window. Do not leave children in
a vehicle with the ignition key.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Keys, Doors, and Windows 7
{Warning
If the key is unintentionally rotated while
the vehicle is running, the ignition could
be moved out of the RUN position.
This could be caused by heavy items
hanging from the key ring, or by large or
long items attached to the key ring that
could be contacted by the driver or
steering wheel. If the ignition moves out
of the RUN position, the engine will shut
off, braking and steering power assist
may be impacted, and airbags may not
deploy. To reduce the risk of
unintentional rotation of the ignition key,
do not change the way the ignition key
and Remote Keyless Entry (RKE)
transmitter, if equipped, are connected to
the provided key rings.
The ignition key and key rings, and RKE
transmitter, if equipped, are designed to
work together as a system to reduce the
risk of unintentionally moving the key out
of the RUN position. The ignition key has a
small hole to allow attachment of the
provided key ring.
It is important that any replacement ignition
keys have a small hole. See your dealer if a
replacement key is required.
The combination and size of the rings that
came with your keys were specifically
selected for your vehicle. The rings are
connected to the key like two links of a
chain to reduce the risk of unintentionallymoving the key out of the RUN position. Do
not add any additional items to the ring
attached to the ignition key.
Attach additional items only to the second
ring, and limit added items to a few
essential keys or small, light items no larger
than an RKE transmitter.
Interference from radio-frequency
identification (RFID) tags may prevent the
key from starting the vehicle. Keep RFID
tags away from the key when starting the
vehicle. The key that is part of the Remote
Keyless Entry (RKE) transmitter can be used
for the ignition and all locks.