key CHEVROLET TRAILBLAZER 2023 Repair Manual

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
340 OnStar
Or
.Give OnStar Turn-by-Turn Navigation voice
commands.
.Obtain and customize the Wi-Fi hotspot
name or SSID and password, if equipped.
Press
Qto connect to an Advisor to:
.Verify account information or update
contact information.
.Get driving directions.
.Receive a Diagnostic check of the vehicle's
key operating systems.
.Receive Roadside Assistance.
.Manage Wi-Fi Settings, if equipped.
Press
>to get a priority connection to an
OnStar Advisor available 24/7 to:
.Get help for an emergency.
.Be a Good Samaritan or respond to an
AMBER Alert.
.Get assistance in severe weather or other
crisis situations and find evacuation
routes.
OnStar Services
Emergency
Emergency Services require an active safety
and security plan. With Automatic Crash
Response, built-in sensors can automatically
alert a specially trained OnStar Advisor who
is immediately connected in to the vehicle
to help.
Press
>for a priority connection to an
OnStar Advisor who can contact emergency
service providers, direct them to your exact
location, and relay important information.
With OnStar Crisis Assist, specially trained
Advisors are available 24 hours a day, 7 days
a week, to provide a central point of
contact, assistance, and information during a
crisis.
With Roadside Assistance, Advisors can
locate a nearby service provider to help with
a flat tire, a battery jump, or an empty
gas tank.
Security
If equipped, OnStar provides these services:
.With Stolen Vehicle Assistance, OnStar
Advisors can use GPS to pinpoint the
vehicle and help authorities quickly
recover it.
.With Remote Ignition Block, if equipped,
OnStar can block the vehicle from being
restarted.
.With Stolen Vehicle Slowdown,
if equipped, OnStar can work with law
enforcement to gradually slow the
vehicle down.
Theft Alarm Notification
If equipped, if the doors are locked and the
vehicle alarm sounds, a notification by text,
e-mail, or phone call will be sent. If the
vehicle is stolen, an OnStar Advisor can work
with authorities to recover the vehicle.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
346 Connected Services
Remote Services
Contact an OnStar Advisor to unlock the
doors or sound the horn and flash the
lamps.
Marketplace
OnStar Advisors can provide offers from
restaurants and retailers on your route, help
locate hotels, or book a room. These services
vary by market.
Diagnostics
By monitoring and reporting on the vehicle's
key systems, OnStar Advanced Diagnostics,
if equipped, provides a way to keep up on
maintenance. Capabilities vary by model.
See www.onstar.com for details and system
limitations. Features are subject to change.
For updates on feature capabilities, see
my.chevrolet.com. Message and data rates
may apply.

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 355
Recommended Fluids and Lubricants . . . . . 319
RecordsMaintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
Recreational Vehicle Towing . . . . . . . . . . . . . 302
Reimbursement Program, GM Mobility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
Remote
Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Key Operation . . . . . . . . . . . . . . . . . . . . . . . 10, 13
Vehicle Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Replacement Parts
Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Replacing Airbag System . . . . . . . . . . . . . . . . . . . . . . . . . . 62
LATCH System Parts After a Crash . . . . . . 74
Seat Belt System Parts after a Crash . . . . 52
Reporting Safety Defects Canadian Government . . . . . . . . . . . . . . . . . 336
General Motors . . . . . . . . . . . . . . . . . . . . . . . . 336
U.S. Government . . . . . . . . . . . . . . . . . . . . . . . 335
Restraints Where to Put . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Retained Accessory Power (RAP) . . . . . . . . . 192
Roads Driving, Wet . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Roadside Assistance Program . . . . . . . . . . . . 330 Roof
Rack System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Rotation, Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Routing, Engine Drive Belt . . . . . . . . . . . . . . . 326
Running the Vehicle While Parked . . . . . . . 194
S
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Safety Defects Reporting Canadian Government . . . . . . . . . . . . . . . . . 336
General Motors . . . . . . . . . . . . . . . . . . . . . . . . 336
U.S. Government . . . . . . . . . . . . . . . . . . . . . . . 335
Safety System Check . . . . . . . . . . . . . . . . . . . . . . 51
Satellite Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Scheduling Appointments . . . . . . . . . . . . . . . . 332
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Extender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
How to Wear Seat Belts Properly . . . . . . . 46
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . 48
Reminders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Replacing after a Crash . . . . . . . . . . . . . . . . . 52
Use During Pregnancy . . . . . . . . . . . . . . . . . . 50
Seats
Adjustment, Front . . . . . . . . . . . . . . . . . . . . . . 39
Folding Seatback . . . . . . . . . . . . . . . . . . . . . . . . 42 Seats (cont'd)
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . 37
Heated Front . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Lumbar Adjustment, Front . . . . . . . . . . . . . . 41
Power Adjustment, Front . . . . . . . . . . . . . . . 39
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Reclining Seatbacks . . . . . . . . . . . . . . . . . . . . . 40
Securing Child Restraints . . . . . . . . . . . . . . . 75, 76
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Vehicle Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172 Accessories and Modifications . . . . . . . . . 239
Climate Control System . . . . . . . . . . . . . . . . 167
Doing Your Own Work . . . . . . . . . . . . . . . . . 240
Electric Parking Brake Light . . . . . . . . . . . . 101
Maintenance Records . . . . . . . . . . . . . . . . . . 322
Maintenance, General Information . . . . . 314
Parts Identification . . . . . . . . . . . . . . . . . . . . . 323
Scheduling Appointments . . . . . . . . . . . . . . 332
Services Special Application . . . . . . . . . . . . . . . . . . . . . 318
Servicing System . . . . . . . . . . . . . . . . . . . . . . . . . 141
Servicing the Airbag . . . . . . . . . . . . . . . . . . . . . . .61
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153