Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
14400528) - 2021 - CRC - 11/7/19
Vehicle Care 243
Vehicle Care
General Information
General Information . . . . . . . . . . . . . . . . . . . 244
California Proposition 65 Warning . . . . . 244
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 244
Accessories and Modifications . . . . . . . . . 245
Vehicle Checks
Doing Your Own Service Work . . . . . . . . 245
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Engine Compartment Overview . . . . . . . . 247
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Engine Oil Life System . . . . . . . . . . . . . . . . . 252
Automatic Transmission Fluid . . . . . . . . . . 252
Engine Air Filter Life System . . . . . . . . . . . 253
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . 253
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 255
Engine Overheating . . . . . . . . . . . . . . . . . . . 258
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Battery - North America . . . . . . . . . . . . . . . 261
All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . . 263
Starter Switch Check . . . . . . . . . . . . . . . . . . 263
Automatic Transmission Shift Lock Control Function Check . . . . . . . . . . . . . . 263
Park Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264 Wiper Blade Replacement . . . . . . . . . . . . . 264
Windshield Replacement . . . . . . . . . . . . . . 265
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . 266
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . 266
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . 267
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Headlamps, Front Turn Signal,
Sidemarker, and Parking Lamps (Base
Level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Headlamps, Front Turn Signal, Sidemarker, and Parking Lamps
(Uplevel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
Taillamps, Turn Signal, Sidemarker, Stoplamps, and Back-Up Lamps (Base
Level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
Taillamps, Turn Signal, Sidemarker, Stoplamps, and Back-Up Lamps
(Uplevel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
Electrical System
Electrical System Overload . . . . . . . . . . . . . 273
Fuses and Circuit Breakers . . . . . . . . . . . . . 274
Engine Compartment Fuse Block . . . . . . 274
Instrument Panel Fuse Block . . . . . . . . . . . 277
Rear Compartment Fuse Block . . . . . . . . . 278
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . 280
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . . 281
Tire Designations . . . . . . . . . . . . . . . . . . . . . . 282
Tire Terminology and Definitions . . . . . . 283
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 285
Tire Pressure Monitor System . . . . . . . . . 286
Tire Pressure Monitor Operation . . . . . . . 287
Tire Inspection . . . . . . . . . . . . . . . . . . . . . . . . 290
Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 290
When It Is Time for New Tires . . . . . . . . 291
Buying New Tires . . . . . . . . . . . . . . . . . . . . . 292
Different Size Tires and Wheels . . . . . . . 293
Uniform Tire Quality Grading . . . . . . . . . 293
Wheel Alignment and Tire Balance . . . . 295
Wheel Replacement . . . . . . . . . . . . . . . . . . . 295
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 296
Tire Changing . . . . . . . . . . . . . . . . . . . . . . . . . 297
Compact Spare Tire . . . . . . . . . . . . . . . . . . . . 301
Jump Starting
Jump Starting - North America . . . . . . . . 302
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . . . . . 304
Recreational Vehicle Towing . . . . . . . . . . . 305
Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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290 Vehicle Care
4. Use the thumbwheel to scroll to the TirePressure Learn Menu Item (Base DIC) or
the Tire Pressure Menu Item screen
(Uplevel DIC).
5. Press and hold
lor the thumbwheel to
begin the sensor matching process.
A message requesting acceptance of the
process may display.
6. If requested, press
lor the
thumbwheel again to confirm the
selection. The horn sounds twice to
signal the receiver is in relearn mode
and the TIRE LEARN or TIRE LEARNING
ACTIVE message displays on the DIC
screen.
7. Start with the driver side front tire.
8. Place the relearn tool against the tire sidewall, near the valve stem. Then press
the button to activate the TPMS sensor.
A horn chirp confirms that the sensor
identification code has been matched to
this tire and wheel position.
9. Proceed to the passenger side front tire, and repeat the procedure in Step 8.
10. Proceed to the passenger side rear tire, and repeat the procedure in Step 8. 11. Proceed to the driver side rear tire, and
repeat the procedure in Step 8. The horn
sounds two times to indicate the sensor
identification code has been matched to
the driver side rear tire, and the TPMS
sensor matching process is no longer
active. The TIRE LEARN or TIRE LEARNING
ACTIVE message on the DIC display
screen goes off.
12. Turn the vehicle off.
13. Set all four tires to the recommended air pressure level as indicated on the Tire
and Loading Information label.
Tire Inspection
We recommend that the tires, including
the spare tire, if the vehicle has one, be
inspected for signs of wear or damage
at least once a month.
Replace the tire if:
.The indicators at three or more
places around the tire can be seen.
.There is cord or fabric showing
through the tire's rubber.
.The tread or sidewall is cracked, cut,
or snagged deep enough to show
cord or fabric.
.The tire has a bump, bulge, or split.
.The tire has a puncture, cut, or other
damage that cannot be repaired well
because of the size or location of the
damage.
Tire Rotation
Tires should be rotated every 12 000 km
(7,500 mi). See Maintenance Schedule
0 316.
Tires are rotated to achieve a more
uniform wear for all tires. The first
rotation is the most important.
Anytime unusual wear is noticed, rotate
the tires as soon as possible, check for
proper tire inflation pressure, and check
for damaged tires or wheels. If the
unusual wear continues after the
rotation, check the wheel alignment.
See When It Is Time for New Tires 0291
and
Wheel Replacement 0295.
Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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Vehicle Care 295
Wheel Alignment and Tire
Balance
The tires and wheels were aligned and
balanced at the factory to provide the
longest tire life and best overall
performance. Adjustments to wheel
alignment and tire balancing are not
necessary on a regular basis. Consider an
alignment check if there is unusual tire wear
or the vehicle is significantly pulling to one
side or the other. Some slight pull to the
left or right, depending on the crown of the
road and/or other road surface variations
such as troughs or ruts, is normal. If the
vehicle is vibrating when driving on a
smooth road, the tires and wheels may
need to be rebalanced. See your dealer for
proper diagnosis.
Wheel Replacement
Replace any wheel that is bent, cracked,
or badly rusted or corroded. If wheel nuts
keep coming loose, the wheel, wheel bolts,
and wheel nuts should be replaced. If the
wheel leaks air, replace it. Some aluminum
wheels can be repaired. See your dealer if
any of these conditions exist.Your dealer will know the kind of wheel that
is needed.
Each new wheel should have the same
load-carrying capacity, diameter, width,
offset, and be mounted the same way as
the one it replaces.
Replace wheels, wheel bolts, wheel nuts,
or Tire Pressure Monitor System (TPMS)
sensors with new GM original equipment
parts.
{Warning
Using the wrong replacement wheels,
wheel bolts, or wheel nuts can be
dangerous. It could affect the braking and
handling of the vehicle. Tires can lose air,
and cause loss of control, causing a crash.
Always use the correct wheel, wheel
bolts, and wheel nuts for replacement.
Caution
The wrong wheel can also cause
problems with bearing life, brake cooling,
speedometer or odometer calibration,
headlamp aim, bumper height, vehicle
ground clearance, and tire or tire chain
clearance to the body and chassis.
Used Replacement Wheels
{Warning
Replacing a wheel with a used one is
dangerous. How it has been used or how
far it has been driven may be unknown.
It could fail suddenly and cause a crash.
When replacing wheels, use a new GM
original equipment wheel.
Tire Chains
{Warning
Do not use tire chains. There is not
enough clearance. Tire chains used on a
vehicle without the proper amount of
clearance can cause damage to the
brakes, suspension, or other vehicle parts.
The area damaged by the tire chains
could cause loss of control and a crash.
Use another type of traction device only
if its manufacturer recommends it for the
vehicle's tire size combination and road
conditions. Follow that manufacturer's
instructions. To avoid vehicle damage,
drive slow and readjust or remove the
(Continued)
Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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324 Service and Maintenance
Vehicle Care
To help keep the vehicle looking like new,
vehicle care products are available from your
dealer. For information on how to clean and
protect the vehicle’s interior and exterior,
seeInterior Care 0311 and
Exterior Care 0307.
Wheel Alignment
Wheel alignment is critical for ensuring that
the tires deliver optimal wear and
performance.
.Signs that the alignment may need to be
adjusted include pulling, improper vehicle
handling, or unusual tire wear.
.Your dealer has the required equipment
to ensure proper wheel alignment. Windshield
For safety, appearance, and the best
viewing, keep the windshield clean and
clear.
.Signs of damage include scratches, cracks,
and chips.
.Trained dealer technicians can inspect the
windshield and recommend proper
replacement if needed.
Wiper Blades
Wiper blades need to be cleaned and kept in
good condition to provide a clear view.
.Signs of wear include streaking, skipping
across the windshield, and worn or split
rubber.
.Trained dealer technicians can check the
wiper blades and replace them when
needed.
Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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360 Index
Storage Compartments . . . . . . . . . . . . . . . . . . . 78
StrutsGas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Stuck Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . .187
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
System Engine Air Filter Life . . . . . . . . . . . . . . . . . . . .253
Forward Collision Alert (FCA) . . . . . . . . . . . .223
Global Positioning . . . . . . . . . . . . . . . . . . . . . . 145
Infotainment . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .144
Roof Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Systems
Driver Assistance . . . . . . . . . . . . . . . . . . . . . . . 219
T
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
TaillampsBulb Replacement . . . . . . . . . . . . . . . . . . 269, 271
Teen Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Text Telephone (TTY) Users . . . . . . . . . . . . . . 334
Theft-Deterrent Systems . . . . . . . . . . . . . . . . . . 30 Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279 Tires (cont'd)
All-Season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . 292
Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Compact Spare . . . . . . . . . . . . . . . . . . . . . . . . .301
Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Different Size . . . . . . . . . . . . . . . . . . . . . . . . . . 293
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 296
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Pressure Monitor Operation . . . . . . . . . . . .287
Pressure Monitor System . . . . . . . . . . . . . . 286
Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Sidewall Labeling . . . . . . . . . . . . . . . . . . . . . . . 281
Terminology and Definitions . . . . . . . . . . . 283
Uniform Tire Quality Grading . . . . . . . . . . 293
Wheel Alignment and Tire Balance . . . . 295
Wheel Replacement . . . . . . . . . . . . . . . . . . . . 295
When It Is Time for New Tires . . . . . . . . . . 291
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Towing Driving Characteristics . . . . . . . . . . . . . . . . . 234
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
General Information . . . . . . . . . . . . . . . . . . . 234
Recreational Vehicle . . . . . . . . . . . . . . . . . . . 305 Towing (cont'd)
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
Traction Control System (TCS)/StabiliTrakLight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Trademarks and License Agreements . . . . . 165
Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .201
Fluid, Automatic . . . . . . . . . . . . . . . . . . . . . . . .252
Transportation Program, Courtesy . . . . . . . 337
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Turn and Lane-Change Signals . . . . . . . . . . . . 117
Turn Signal
Bulb Replacement . . . . . . . . . . . . . . . . . . 269, 271
U
Uniform Tire Quality Grading . . . . . . . . . . . . 293
UpdatesMap Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .146
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
USB Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Using the Navigation System . . . . . . . . . . . . .134
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Index 361
Using the System . . . . . . . . . . . . . . . . . . . . . . . . .124
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . .2
V
VehicleAlarm System . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Canadian Owners . . . . . . . . . . . . . . . . . . . . . . . . . 1
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Identification Number (VIN) . . . . . . . . . . . . 328
Load Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Personalization . . . . . . . . . . . . . . . . . . . . . . . . . 110
Remote Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Speed Messages . . . . . . . . . . . . . . . . . . . . . . . . 110
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
Vehicle Ahead Indicator . . . . . . . . . . . . . . . . . . 100
Vehicle Care Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
Vehicle Data Recording and Privacy . . . . . . .341
Vehicle Positioning . . . . . . . . . . . . . . . . . . . . . . .145
Ventilation, Air . . . . . . . . . . . . . . . . . . . . . . . . . . .178
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Voice Recognition . . . . . . . . . . . . . . . . . . . . . . . . 146
W
Warning
Brake System Light . . . . . . . . . . . . . . . . . . . . . 98 Warning (cont'd)
Caution and Danger . . . . . . . . . . . . . . . . . . . . . . 2
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Warnings Hazard Flashers . . . . . . . . . . . . . . . . . . . . . . . . . 117
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Wheels
Alignment and Tire Balance . . . . . . . . . . . . 295
Different Size . . . . . . . . . . . . . . . . . . . . . . . . . . 293
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
When It Is Time for New Tires . . . . . . . . . . . 291
Where to Put the Restraint . . . . . . . . . . . . . . . 66
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Windshield
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Wiper/Washer . . . . . . . . . . . . . . . . . . . . . . . . . . .83
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .186
Winter Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Wiper Blade Replacement . . . . . . . . . . . . . . . . 264
Wipers
Rear Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Wireless Charging . . . . . . . . . . . . . . . . . . . . . . . . 86