2023 CHEVROLET TRAILBLAZER spare wheel

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
Driving and Operating 197
To use this feature:1. Move the shift lever to L (Manual Mode).
2. Press the plus/minus button on the shift lever, to increase or decrease the gear
range available.
When shifting to L (Manual Mode), the
transmission will shift to a preset lower gear
range. For this preset range, the highest
gear available is displayed next to the L in
the DIC. See Driver Information Center (DIC)
(Base Level) 0106 or
Driver Information Center (DIC) (Uplevel)
0 108 for more information. All gears below
that number are available to use. For
example, when 4 (Fourth) is shown next to
the L, 1 (First) through 4 (Fourth) gears are shifted automatically. To shift to 5 (Fifth)
gear, press the + (Plus) button or shift into
D (Drive).
L (Manual Mode) will prevent shifting to a
lower gear range if the engine speed is too
high. If vehicle speed is not reduced within
the time allowed, the lower gear range shift
will not be completed. Slow the vehicle,
then press the
−(Minus) button to the
desired lower gear range.
While using the ERS, cruise control can
be used.
Drive Systems
All-Wheel Drive
Vehicles with this feature can operate in
All-Wheel Drive (AWD) Mode.
The AWD system delivers power to all four
wheels and the system adjusts as needed to
improve traction.
Press the AWD switch on the center console
to activate the system. The AWD light will
flash briefly while the system is engaging
and stay lit to indicate AWD is active. Press
the switch again to disable the system. The
light will flash briefly while the system
disables and then stay off.
The AWD Mode will stay selected until the
mode is changed.
When operated in two-wheel drive, the
vehicle will deliver power to the front
wheels only and may provide better fuel
economy.
When using a compact spare tire on an
AWD vehicle, the system automatically
detects the compact spare and reduces AWD

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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238 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . . . . . . . . . . 239
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 239
Accessories and Modifications . . . . . . . . . 239
Vehicle Checks
Doing Your Own Service Work . . . . . . . . 240
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Engine Compartment Overview . . . . . . . . 242
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Engine Oil Life System . . . . . . . . . . . . . . . . 247
Automatic Transmission Fluid . . . . . . . . . 248
Engine Air Filter Life System . . . . . . . . . . 248
Engine Air Cleaner/Filter . . . . . . . . . . . . . . 248
Cooling System . . . . . . . . . . . . . . . . . . . . . . . 250
Engine Overheating . . . . . . . . . . . . . . . . . . . 254
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Battery - North America . . . . . . . . . . . . . . . 257
All-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . . 258
Starter Switch Check . . . . . . . . . . . . . . . . . . 259
Automatic Transmission Shift Lock Control Function Check . . . . . . . . . . . . . . 259
Park Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259 Wiper Blade Replacement . . . . . . . . . . . . . 260
Windshield Replacement . . . . . . . . . . . . . . . 261
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . 262
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . 262
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . 262
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Headlamps, Front Turn Signal,
Sidemarker, and Parking Lamps (Base
Level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Headlamps, Front Turn Signal, Sidemarker, and Parking Lamps
(Uplevel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Taillamps, Turn Signal, Sidemarker, Stoplamps, and Back-Up Lamps (Base
Level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Taillamps, Turn Signal, Sidemarker, Stoplamps, and Back-Up Lamps
(Uplevel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Electrical System
Electrical System Overload . . . . . . . . . . . . 269
Fuses and Circuit Breakers . . . . . . . . . . . . . 270
Where To Find Fuse Maps for YourVehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270 Engine Compartment Fuse Block . . . . . . . 271
Instrument Panel Fuse Block . . . . . . . . . . . 273
Rear Compartment Fuse Block . . . . . . . . . 275
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . . 277
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . 278
Tire Designations . . . . . . . . . . . . . . . . . . . . . . 279
Tire Terminology and Definitions . . . . . 280
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Tire Pressure Monitor System . . . . . . . . . 283
Tire Pressure Monitor Operation . . . . . . 284
Tire Inspection . . . . . . . . . . . . . . . . . . . . . . . . 287
Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 287
When It Is Time for New Tires . . . . . . . . 288
Buying New Tires . . . . . . . . . . . . . . . . . . . . . 289
Different Size Tires and Wheels . . . . . . . 290
Uniform Tire Quality Grading . . . . . . . . . 290
Wheel Alignment and Tire Balance . . . . 292
Wheel Replacement . . . . . . . . . . . . . . . . . . . 292
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 293
Tire Changing . . . . . . . . . . . . . . . . . . . . . . . . . 294
Compact Spare Tire . . . . . . . . . . . . . . . . . . . 298
Jump Starting
Jump Starting - North America . . . . . . . . 299

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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278 Vehicle Care
If using winter tires:
.Use tires of the same brand and tread
type on all four wheel positions.
.Use only radial ply tires of the same size,
load range, and speed rating as the
original equipment tires.
Winter tires with the same speed rating as
the original equipment tires may not be
available for H, V, W, Y, and ZR speed rated
tires. If winter tires with a lower speed
rating are chosen, never exceed the tire's
maximum speed capability.
Tire Sidewall Labeling
Useful information about a tire is
molded into its sidewall. The examples
show a typical passenger vehicle tire
and a compact spare tire sidewall.
Passenger Tire Example
(1) Tire Size:The tire size is a
combination of letters and numbers
used to define a particular tire's width,
height, aspect ratio, construction type,
and service description. See the “Tire
Size” illustration in this section.
(2) TPC Spec (Tire Performance Criteria
Specification)
:Original equipment tires
designed to GM's specific tire
performance criteria have a TPC
specification code molded onto the
sidewall. GM's TPC specifications meet
or exceed all federal safety guidelines. (3) DOT (Department of
Transportation)
:The Department of
Transportation (DOT) code indicates that
the tire is in compliance with the U.S.
Department of Transportation Motor
Vehicle Safety Standards.
DOT Tire Date of Manufacture
:The last
four digits of the TIN indicate the tire
manufactured date. The first two digits
represent the week and the last two
digits, the year. For example, the third
week of the year 2020 would have a
4-digit DOT date of 0320. Week 01 is
the first full week (Sunday through
Saturday) of each year.
(4) Tire Identification Number (TIN)
:
The letters and numbers following the
DOT (Department of Transportation)
code are the Tire Identification Number
(TIN). The TIN shows the manufacturer
and plant code, tire size, and date the
tire was manufactured. The TIN is
molded onto both sides of the tire,
although only one side may have the
date of manufacture.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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284 Vehicle Care
sequence will continue upon subsequent
vehicle start-ups as long as the malfunction
exists.
When the malfunction indicator is
illuminated, the system may not be able to
detect or signal low tire pressure as
intended. TPMS malfunctions may occur for
a variety of reasons, including the
installation of replacement or alternate tires
or wheels on the vehicle that prevent the
TPMS from functioning properly. Always
check the TPMS malfunction telltale after
replacing one or more tires or wheels on
your vehicle to ensure that the replacement
or alternate tires and wheels allow the
TPMS to continue to function properly.
SeeTire Pressure Monitor Operation 0284.
See Radio Frequency Statement 0335.
Tire Pressure Monitor Operation
This vehicle may have a Tire Pressure
Monitor System (TPMS). The TPMS is
designed to warn the driver when a low tire
pressure condition exists. TPMS sensors are
mounted onto each tire and wheel
assembly, excluding the spare tire and
wheel assembly. The TPMS sensors monitor the air pressure in the tires and transmit the
tire pressure readings to a receiver located
in the vehicle.
When a low tire pressure condition is
detected, the TPMS illuminates the low tire
pressure warning light located on the
instrument cluster. If the warning light
comes on, stop as soon as possible and
inflate the tires to the recommended
pressure shown on the Tire and Loading
Information label. See
Vehicle Load Limits
0 181.
A message to check the pressure in a
specific tire may display in the Driver
Information Center (DIC). The low tire
pressure warning light and the DIC warning
message, if equipped, come on at each
ignition cycle until the tires are inflated to
the correct inflation pressure. Using the DIC,
it may be possible to view the tire pressure
levels. For additional information and details about the DIC operation and displays, see
Driver Information Center (DIC) (Base Level)
0
106 or
Driver Information Center (DIC) (Uplevel)
0 108.
The low tire pressure warning light may
come on in cool weather when the vehicle is
first started, and then turn off as the vehicle
is driven. This could be an early indicator
that the air pressure is getting low and
needs to be inflated to the proper pressure.
A Tire and Loading Information label shows
the size of the original equipment tires and
the correct inflation pressure for the tires
when they are cold. See Vehicle Load Limits
0 181, for an example of the Tire and
Loading Information label and its location.
Also see Tire Pressure 0282.
The TPMS can warn about a low tire
pressure condition, but it does not replace
normal tire maintenance. See Tire Inspection
0 287, Tire Rotation 0287, and Tires0276.
Caution
Tire sealant materials are not all the
same. A non-approved tire sealant could
damage the TPMS sensors. TPMS sensor
(Continued)

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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Vehicle Care 285
Caution (Continued)
damage caused by using an incorrect tire
sealant is not covered by the vehicle
warranty. Always use only the GM
approved tire sealant available through
your dealer or included in the vehicle.
TPMS Malfunction Light and Message
The TPMS will not function properly if one
or more of the TPMS sensors are missing or
inoperable. When the system detects a
malfunction, the low tire pressure warning
light, defined above, flashes for about
one minute and then stays on for the
remainder of the ignition cycle. A DIC
warning message may also display. The
malfunction light and DIC warning message,
if equipped, come on at each ignition cycle
until the problem is corrected. Some of the
conditions that can cause these to come
on are:
.One of the road tires has been replaced
with the spare tire. The spare tire does
not have a TPMS sensor. The malfunction
light and the DIC message, if equipped,
should go off after the road tire is
replaced and the sensor matching processis performed successfully. See "TPMS
Sensor Matching Process" later in this
section.
.The TPMS sensor matching process was
not done or not completed successfully
after rotating the tires. The malfunction
light and the DIC message, if equipped,
should go off after successfully
completing the sensor matching process.
See "TPMS Sensor Matching Process" later
in this section.
.One or more TPMS sensors are missing or
damaged. The malfunction light and the
DIC message, if equipped, should go off
when the TPMS sensors are installed and
the sensor matching process is performed
successfully. See your dealer for service.
.Replacement tires or wheels do not match
the original equipment tires or wheels.
Tires and wheels other than those
recommended could prevent the TPMS
from functioning properly. See
Buying
New Tires 0289.
.Operating electronic devices or being near
facilities using radio wave frequencies
similar to the TPMS could cause the TPMS
sensors to malfunction. If the TPMS is not functioning properly, it
cannot detect or signal a low tire pressure
condition. See your dealer for service if the
TPMS malfunction light and DIC message,
if equipped, come on and stay on.
Tire Fill Alert (If Equipped)
This feature provides visual and audible
alerts outside the vehicle to help when
inflating an underinflated tire to the
recommended cold tire pressure.
When the low tire pressure warning light
comes on:
1. Park the vehicle in a safe, level place.
2. Set the parking brake firmly.
3. Place the vehicle in P (Park).
4. Add air to the tire that is underinflated. The turn signal lamp will flash. When
the recommended pressure is reached,
the horn sounds once and the turn signal
lamp will stop flashing and briefly turn
solid.
Repeat these steps for all underinflated tires
that have illuminated the low tire pressure
warning light.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
286 Vehicle Care
{Warning
Overinflating a tire could cause the tire
to rupture and you or others could be
injured. Do not exceed the maximum
pressure listed on the tire sidewall.
SeeTire Sidewall Labeling 0278 and
Vehicle Load Limits 0181.
If the tire is overinflated by more than
35 kPa (5 psi), the horn will sound multiple
times and the turn signal lamp will continue
to flash for several seconds after filling
stops.
To release and correct the pressure, while
the turn signal lamp is still flashing, briefly
press the center of the valve stem. When
the recommended pressure is reached, the
horn sounds once.
If the turn signal lamp does not flash within
15 seconds after starting to inflate the tire,
the tire fill alert has not been activated or is
not working.
If the hazard warning flashers are on, the
tire fill alert visual feedback will not work
properly. The TPMS will not activate the tire fill alert
properly under the following conditions:.There is interference from an external
device or transmitter.
.The air pressure from the inflation device
is not sufficient to inflate the tire.
.There is a malfunction in the TPMS.
.There is a malfunction in the horn or turn
signal lamps.
.The identification code of the TPMS
sensor is not registered to the system.
.The battery of the TPMS sensor is low.
If the tire fill alert does not operate due to
TPMS interference, move the vehicle about
1 m (3 ft) back or forward and try again.
If the tire fill alert feature is not working,
use a tire pressure gauge.
TPMS Sensor Matching Process
Each TPMS sensor has a unique
identification code. The identification code
needs to be matched to a new tire/wheel
position after rotating the vehicle’s tires or
replacing one or more of the TPMS sensors.
Also, the TPMS sensor matching process
should be performed after replacing a spare
tire with a road tire containing the TPMS
sensor. The malfunction light and the DIC
message, if equipped, should go off at the next ignition cycle. The sensors are matched
to the tire/wheel positions, using a TPMS
relearn tool, in the following order: driver
side front tire, passenger side front tire,
passenger side rear tire, and driver side rear.
See your dealer for service or to purchase a
relearn tool. A TPMS relearn tool can also be
purchased. See Tire Pressure Monitor Sensor
Activation Tool at
www.gmtoolsandequipment.com or call
1-800-GM TOOLS (1-800-468-6657).
There are two minutes to match the first
tire/wheel position, and five minutes overall
to match all four tire/wheel positions. If it
takes longer, the matching process stops
and must be restarted.
The TPMS sensor matching process is:
1. Set the parking brake.
2. Turn the ignition on without starting the vehicle or place the vehicle in Service
Mode. See Ignition Positions (Key Access)
0 184 or
Ignition Positions (Keyless Access) 0186.
3. Use
o/pto select the Vehicle in the
Base Level Driver Information Center
(DIC), or use
o/pto select the Info
page in the Uplevel Driver Information
Center (DIC).

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
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Vehicle Care 287
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 the thumbwheel to begin the sensor matching process. A message
requesting acceptance of the process
may display.
6. If requested, press 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 according to the
interval specified in the Maintenance
Schedule. See Maintenance Schedule
0 315.
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
0 288 and
Wheel Replacement 0292.

Chevrolet Trailblazer Owner Manual (GMNA-Localizing-U.S./Canada-
16263960) - 2023 - CRC - 2/23/22
288 Vehicle Care
Use this rotation pattern when rotating
the tires.
Do not include the compact spare tire
in the tire rotation.
Adjust the front and rear tires to the
recommended inflation pressure on the
Tire and Loading Information label after
the tires have been rotated. SeeTire
Pressure 0282 and
Vehicle Load Limits 0181.
Reset the Tire Pressure Monitor System.
See Tire Pressure Monitor Operation
0 284. Check that all wheel nuts are properly
tightened. See
“Wheel Nut Torque”
under Capacities and Specifications
0 324, and “Removing the Flat Tire and
Installing the Spare Tire” underTire
Changing 0294.
{Warning
Rust or dirt on a wheel, or on the
parts to which it is fastened, can
cause wheel nuts to become loose
over time. The wheel could come off
and cause a crash. When changing a
wheel, remove any rust or dirt from
places where the wheel attaches to
the vehicle. In an emergency, a cloth
or paper towel can be used; however,
use a scraper or wire brush later to
remove all rust or dirt.
Lightly coat the inner diameter of the
wheel hub opening with wheel bearing
grease after a wheel change or tire
rotation to prevent corrosion or rust
buildup.
{Warning
Do not apply grease to the wheel
mounting surface, wheel conical
seats, or the wheel nuts or bolts.
Grease applied to these areas could
cause a wheel to become loose or
come off, resulting in a crash.
When It Is Time for New Tires
Factors, such as maintenance, temperatures,
driving speeds, vehicle loading, and road
conditions affect the wear rate of the tires.
Treadwear indicators are one way to tell
when it is time for new tires. Treadwear
indicators appear when the tires have only