Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
316 Service and Maintenance
Reset the oil life system when the oil is
changed. SeeEngine Oil Life System
0 247.
.When the REPLACE AT NEXT OIL CHANGE
message displays, the engine air filter
should be replaced at the next engine oil
change. When the REPLACE ENGINE AIR
FILTER SOON message displays, the
engine air filter should be replaced at the
earliest convenience. Reset the engine air
filter life system after the engine air filter
is replaced. See Engine Air Filter Life
System 0248.
Every 36 000 km (22,500 mi)
.Passenger compartment air filter
replacement (or every 24 months,
whichever occurs first). More frequent
replacement may be needed if the vehicle
is driven in areas with heavy traffic, poor
air quality, areas with high dust levels or
are sensitive to environmental allergens.
Filter replacement may also be needed if
you notice reduced airflow, windows
fogging up, or odors. Your local GM
Service location can help you determine
when it is the right time to replace your
filter. Every 96 000 km (60,000 mi)
.Replace spark plugs. Inspect spark plug
wires and/or boots.
Every 161 000 km (100,000 mi)
.Replace hood and/or body lift support gas
struts. Or every 10 years, whichever
comes first. See Gas Strut(s)0261.
Every 240 000 km (150,000 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.
.Drain and fill engine cooling system. Or
every six years, whichever comes first.
See Cooling System 0250.
Severe Conditions Requiring More
Frequent Maintenance*
.Public service, military, or commercial use
vehicles to include the following:
‐ Ambulances, police cars, and
emergency rescue vehicles. ‐
Civilian vehicles such as light duty
pick-up trucks, SUVs, and passenger
cars that are used in military
applications.
‐ Recovery vehicles such as tow trucks
and flatbed single vehicle carriers or
any vehicle that is consistently used in
towing trailers or other loads.
‐ High use commercial vehicles such as
courier delivery vehicles, private
security patrol vehicles, or any vehicles
that operate on a 24–hour basis.
‐ Any vehicle consistently operated in a
high sand or dust environment such as
those used on oil pipelines and similar
applications.
.Vehicles that are regularly used for short
trips of 6 km (4 mi) or less.
The oil life indicator will show you when
to change the oil and filter. Under severe
conditions the indicator may come on
before 12 000 km (7,500 mi).
* Footnote: Under extreme driving
conditions listed above, it may be
necessary to replace your spark plugs at
more frequent intervals. For further
assistance in determining the most
Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Index 357
Tires (cont'd)Sidewall Labeling . . . . . . . . . . . . . . . . . . . . . . 278
Terminology and Definitions . . . . . . . . . . . 280
Uniform Tire Quality Grading . . . . . . . . . . 290
Wheel Alignment and Tire Balance . . . . 292
Wheel Replacement . . . . . . . . . . . . . . . . . . . . 292
When It Is Time for New Tires . . . . . . . . . 288
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Towing Driving Characteristics . . . . . . . . . . . . . . . . . 229
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
General Information . . . . . . . . . . . . . . . . . . . 228
Recreational Vehicle . . . . . . . . . . . . . . . . . . . 302
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Traction
Control System (TCS)/StabiliTrakLight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Control/Electronic Stability Control . . . . 200
Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Trademarks and License Agreements . . . . . 159
Trailer
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Fluid, Automatic . . . . . . . . . . . . . . . . . . . . . . . 248
Transportation Program, Courtesy . . . . . . . 332 Transporting
a Disabled Vehicle . . . . . . . . . . . . . . . . . . . . . 301
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
TTY Users Customer Assistance . . . . . . . . . . . . . . . . . . . 329
Turn and Lane-Change Signals . . . . . . . . . . . . 115
Turn Signal Bulb Replacement . . . . . . . . . . . . . . . . . 264, 267
U
Uniform Tire Quality Grading . . . . . . . . . . . . 290
UpdatesMap Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
USB Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Using Infotainment System . . . . . . . . . . . . . . . . . . . 121
Navigation System . . . . . . . . . . . . . . . . . . . . . . 131
This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
V
Vehicle
Ahead Indicator . . . . . . . . . . . . . . . . . . . . . . . . 102
Alarm System . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Canadian Owners . . . . . . . . . . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Data Recording and Privacy . . . . . . . . . . . . 336
Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Identification Number (VIN) . . . . . . . . . . . . 323 Vehicle (cont'd)
Load Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Remote Start . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Speed Messages . . . . . . . . . . . . . . . . . . . . . . . . 111
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Vehicle Care Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Ventilation, Air . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Voice Recognition . . . . . . . . . . . . . . . . . . . . . . . . .142
W
Warning Brake System Light . . . . . . . . . . . . . . . . . . . . 100
Caution and Danger . . . . . . . . . . . . . . . . . . . . . 3
Hazard Flashers . . . . . . . . . . . . . . . . . . . . . . . . . 115
Lights, Gauges, and Indicators . . . . . . . . . . 92
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Wheels Alignment and Tire Balance . . . . . . . . . . . . 292
Different Size . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
When It Is Time for New Tires . . . . . . . . . . . 288
Where to Put the Restraint . . . . . . . . . . . . . . . 68
