Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Service and Maintenance 317
suitable service maintenance intervals for
your vehicle, please contact your
authorized GM Dealer.
Extreme service is for vehicles mainly
driven off-road in four-wheel drive or used
in farming, mining, forestry, or snow
plowing.
Additional Required Services—Severe
Service
Every 72 000 km (45,000 mi)
.Change automatic transmission fluid and
filter.
Every 75 000 km (120,000 mi)
.Change rear axle fluid, if equipped with
AWD. Do not directly power wash the
transfer case and/or front/rear axle
output seals. High pressure water can
overcome the seals and contaminate the
transfer case fluid. Contaminated fluid will
decrease the life of the transfer case and/
or axles and should be replaced.
Owner Checks and Services
Every Five Years
.Replace brake fluid every five years. See
Brake Fluid 0256. Every Seven Years
.Replace Air Conditioning Desiccant every
seven years. The air conditioning system
requires maintenance every seven years.
This service requires replacement of the
desiccant to help the longevity and
efficient operation of the air conditioning
system. This service can be complex. See
your dealer.
Multi-Point Vehicle
Inspection (MPVI)
A Multi Point Vehicle Inspection (MPVI)
completed by a GM dealer technician is a
maintenance assessment of your vehicle.
The benefit of the MPVI is to identify and
inform the customer of service items that
require immediate attention and those that
may require attention in the future.
The technician will perform the following
checks on your vehicle. For a complete list
of checks, inspections, and services, see your
dealer.
Some items may not apply to your vehicle
and/or region.
Diagnostics
.OnStar active, if equipped
.Service history/recall check
Engine Oil and Filter
.Engine oil
.Oil life monitor
‐
Reset oil life monitor
Exterior Lights
.Visual inspection
Windshield and Wipers
.Visual inspection
Battery
.Battery visual inspection
.Battery test results
.Battery cables and connections
Systems, Fluids, and Visible Leak
Inspection
.Engine oil
.Transmission
.Drive axle
.Transfer case
.Engine cooling system
.Power steering, if equipped
Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
348 Index
Apple CarPlay and Android Auto . . . . . . . . . . 151
ArmrestRear Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Assistance Program, Roadside . . . . . . . . . . . . 330
Assistance Systems Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Parking and Backing . . . . . . . . . . . . . . . . . . . 215
Audio Bluetooth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Automatic Climate Control System . . . . . . . . . . . . . . . . 169
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Emergency Braking (AEB) . . . . . . . . . . . . . . 219
Headlamp System . . . . . . . . . . . . . . . . . . . . . . 114
Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Transmission Fluid . . . . . . . . . . . . . . . . . . . . . 248
Transmission Shift Lock Control
Function Check . . . . . . . . . . . . . . . . . . . . . . . 259
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . 196
Auxiliary
Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Avoiding Untrusted Media Devices . . . . . . . . 127B
Battery Exterior Lighting Battery Saver . . . . . . . . . 118
Load Management . . . . . . . . . . . . . . . . . . . . . . 118
Power Protection . . . . . . . . . . . . . . . . . . . . . . . 118
Battery - North America . . . . . . . . . . . . 257, 299
Blade Replacement, Wiper . . . . . . . . . . . . . . . 260
Bluetooth Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 147, 148
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
System Warning Light . . . . . . . . . . . . . . . . . 100
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Antilock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Electric Brake Boost . . . . . . . . . . . . . . . . . . . . 198
Electric Parking Brake . . . . . . . . . . . . . . . . . . 198
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Automatic Emergency (AEB) . . . . . . . . . . . 219
Braking System Front Pedestrian (FPB) . . . . . . . . . . . . . . . . . 220
Break-In, New Vehicle . . . . . . . . . . . . . . . . . . . . 184
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . . . 262 Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . 262
Headlamp Aiming . . . . . . . . . . . . . . . . . . . . . . 262 Bulb Replacement (cont'd)
Headlamps, Front Turn Signal,
Sidemarker, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . 262, 263
Taillamps, Turn Signal, Sidemarker, Stoplamps, and
Backup Lamps . . . . . . . . . . . . . . . . . . . 264, 267
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . . . 289
C
Calibration Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 239
California Proposition 65 Warning . . . . . 1, 299
Camera Rear Vision (RVC) . . . . . . . . . . . . . . . . . . . . . . 215
Canadian Vehicle Owners . . . . . . . . . . . . . . . . . . .2
Capacities and Specifications . . . . . . . . . . . . . 324
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . . . . . . . . . . 194
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . 179
Cargo Management System . . . . . . . . . . . . . . . . . . . 83
Tie-Downs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Caution, Danger, and Warning . . . . . . . . . . . . . .3