wheel size CHEVROLET BLAZER 2019 User Guide

Chevrolet Blazer (GMNA-Localizing-U.S./Canada/Mexico-12461541) - 2019 -
CRC - 3/11/19
314 Vehicle Care
control, electronic stability control,
or All-Wheel Drive, the performance
of these systems can also be
affected.
{Warning
If different sized wheels are used,
there may not be an acceptable
level of performance and safety if
tires not recommended for those
wheels are selected. This
increases the chance of a crash
and serious injury. Only use GM
specific wheel and tire systems
developed for the vehicle, and
have them properly installed by a
GM certified technician.
See Buying New Tires 0312 and
Accessories and Modifications
0 259.
Uniform Tire Quality
Grading
The following information relates
to the system developed by the
United States National Highway Traffic Safety Administration
(NHTSA), which grades tires by
treadwear, traction, and
temperature performance. This
applies only to vehicles sold in
the United States. The grades
are molded on the sidewalls of
most passenger car tires. The
Uniform Tire Quality Grading
(UTQG) system does not apply
to deep tread, winter tires,
compact spare tires, tires with
nominal rim diameters of
10 to 12 inches (25 to 30 cm),
or to some limited-production
tires.
While the tires available on
General Motors passenger cars
and light trucks may vary with
respect to these grades, they
must also conform to federal
safety requirements and
additional General Motors Tire
Performance Criteria (TPC)
standards.
Quality grades can be found
where applicable on the tire
sidewall between tread shoulder
and maximum section width. For
example:
Treadwear 200 Traction AA
Temperature A
All Passenger Car Tires Must
Conform to Federal Safety
Requirements In Addition To
These Grades.
Treadwear
The treadwear grade is a
comparative rating based on the
wear rate of the tire when tested
under controlled conditions on a
specified government test
course. For example, a tire
graded 150 would wear one and
one-half (1½) times as well on
the government course as a tire
graded 100. The relative
performance of tires depends
upon the actual conditions of
their use, however, and may
depart significantly from the

Chevrolet Blazer (GMNA-Localizing-U.S./Canada/Mexico-12461541) - 2019 -
CRC - 3/11/19
316 Vehicle Care
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
If the vehicle has a tire size other
than 235/65R18, 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(Continued)

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Vehicle Care 317
Warning (Continued)
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
traction device if it contacts the
vehicle. Do not spin the wheels. If
traction devices are used, install
them on the front tires.
Caution
If the vehicle is equipped with
235/65R18 size tires, use tire
chains only where legal and only
when necessary. Use low profile
chains that add no more than
12 mm thickness to the tire tread
and inner sidewall. Use chains(Continued)
Caution (Continued)
that are the proper size for the
tires. Install them on the tires of
the front axle. Do not use chains
on the tires of the rear axle.
Tighten them as tightly as
possible with the ends securely
fastened. Drive slowly and follow
the chain manufacturer's
instructions. If the chains contact
the vehicle, stop and retighten
them. If the contact continues,
slow down until it stops. Driving
too fast or spinning the wheels
with chains on will damage the
vehicle.
If a Tire Goes Flat
It is unusual for a tire to blow out
while driving, especially if the tires
are maintained properly. See Tires
0 295. If air goes out of a tire, it is
much more likely to leak out slowly.
But if there is ever a blowout, here
are a few tips about what to expect
and what to do: If a front tire fails, the flat tire
creates a drag that pulls the vehicle
toward that side. Take your foot off
the accelerator pedal and grip the
steering wheel firmly. Steer to
maintain lane position, and then
gently brake to a stop, well off the
road, if possible.
A rear blowout, particularly on a
curve, acts much like a skid and
may require the same correction as
used in a skid. Stop pressing the
accelerator pedal and steer to
straighten the vehicle. It may be
very bumpy and noisy. Gently brake
to a stop, well off the road,
if possible.
{Warning
Driving on a flat tire will cause
permanent damage to the tire.
Re-inflating a tire after it has been
driven on while severely
underinflated or flat may cause a
blowout and a serious crash.
Never attempt to re-inflate a tire
(Continued)

Chevrolet Blazer (GMNA-Localizing-U.S./Canada/Mexico-12461541) - 2019 -
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330 Vehicle Care
14. Tighten the wheel nuts firmly ina crisscross sequence, as
shown.
15. Lower the jack all the way and remove the jack from under the
vehicle.
16. Tighten the wheel nuts firmly with the wheel wrench.
If equipped, when reinstalling the
wheel cover or center cap on the
full-size tire, tighten all six plastic
caps hand snug with the aid of the
wheel wrench and tighten them with
the wheel wrench an additional
one-quarter of a turn.
Caution
Wheel covers will not fit on the
vehicle's compact spare. If you try
to put a wheel cover on the
compact spare, the cover or the
spare could be damaged.
Storing a Flat or Spare Tire
and Tools
{Warning
Storing a jack, a tire, or other
equipment in the passenger
compartment of the vehicle could
cause injury. In a sudden stop or
collision, loose equipment could
strike someone. Store all these in
the proper place.
To store the flat or spare tire and
tools: 1. Open the liftgate. See Liftgate
0 40. 2. Put back all tools as they were
stored in the rear storage
compartment and put the
compartment cover back on.
3. Place the tire, lying flat, in the rear storage compartment.
4. Place the loop end of the strapthrough the cargo tie-down.
Place the hook end of the strap
through the loop and pull it until
the strap is fastened securely
to the tie-down.

Chevrolet Blazer (GMNA-Localizing-U.S./Canada/Mexico-12461541) - 2019 -
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Vehicle Care 331
5. Route the strap hook throughthe wheel, as shown.
6. Attach the strap to the other cargo tie-down in the rear of
the vehicle.
7. Tighten the strap and secure it using the buckle.
The compact spare is for temporary
use only. Replace the compact
spare tire with a full-size tire as
soon as you can.
Compact Spare Tire
{Warning
Driving with more than one
compact spare tire at a time could
result in loss of braking and
handling. This could lead to a
crash and you or others could be
injured. Use only one compact
spare tire at a time.
If this vehicle has a compact spare
tire, it was fully inflated when new;
however, it can lose air over time.
Check the inflation pressure
regularly. It should be 420 kPa
(60 psi).
Stop as soon as possible and check
that the spare tire is correctly
inflated after being installed on the
vehicle. The compact spare tire is
designed for temporary use only.
The vehicle will perform differently
with the spare tire installed and it is
recommended that the vehicle
speed be limited to 80 km/h
(50 mph). To conserve the tread of the spare tire, have the standard tire
repaired or replaced as soon as
convenient and return the spare tire
to the storage area.
When using a compact spare tire,
the ABS and Traction Control
systems may engage until the spare
tire is recognized by the vehicle,
especially on slippery roads. Adjust
driving to reduce possible
wheel slip.
Performance of the All-Wheel
Drive (AWD) system will be
automatically reduced to protect the
system when using the compact
spare. To restore the AWD and
prevent excessive wear on the
clutch in the AWD, replace the
compact spare tire with a full-size
tire as soon as possible.
Caution
When the compact spare is
installed, do not take the vehicle
through an automatic car wash
with guide rails. The compact
(Continued)

Chevrolet Blazer (GMNA-Localizing-U.S./Canada/Mexico-12461541) - 2019 -
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Vehicle Care 337
Caution
If 105 km/h (65 mph) is exceeded
while towing the vehicle, it could
be damaged. Never exceed
105 km/h (65 mph) while towing
the vehicle.
Once the destination is reached: 1. Set the parking brake.
2. Shift the transmission to P (Park).
3. Turn the vehicle off.
4. Start the engine and let it idle for more than three minutes
before driving the vehicle.
Caution
Do not tow a vehicle with the front
drive wheels on the ground if one
of the front tires is a compact
spare tire. Towing with two
different tire sizes on the front of
the vehicle can cause severe
damage to the transmission.
Dolly Towing
To tow the vehicle from the front
with two wheels on the ground:
1. Put the front wheels on a dolly.
2. Shift the transmission to P (Park).
3. Set the parking brake.
4. Clamp the steering wheel in a straight-ahead position with a
clamping device designed for
towing.
5. Turn the vehicle off.
6. Secure the vehicle to the dolly. 7. Release the parking brake.
Towing the Vehicle from
the Rear

Chevrolet Blazer (GMNA-Localizing-U.S./Canada/Mexico-12461541) - 2019 -
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Index 401
Starting the Engine . . . . . . . . . . . . . 194
Steering . . . . . . . . . . . . . . . . . . . . . . . . 179Heated Wheel . . . . . . . . . . . . . . . . .116
Wheel Adjustment . . . . . . . . . . . . .116
Wheel Controls . . . . . . . . . . . . . . . .116
Stop/Start System . . . . . . . . . . . . . . 195
Storage Rear . . . . . . . . . . . . . . . . . . . . . . . . . . .110
Storage Areas Armrest . . . . . . . . . . . . . . . . . . . . . . . .110
Cargo Management System . . . 111
Center Console . . . . . . . . . . . . . . . .110
Glove Box . . . . . . . . . . . . . . . . . . . . 109
Roof Rack System . . . . . . . . . . . . .114
Sunglasses . . . . . . . . . . . . . . . . . . . 109
Storage Compartments . . . . . . . . . 109
Storing the Tire Sealant and
Compressor Kit . . . . . . . . . . . . . . . 326
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 187
Summer Tires . . . . . . . . . . . . . . . . . . 297
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 55
Sunglass Storage . . . . . . . . . . . . . . . 109
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System
Engine Air Filter Life . . . . . . . . . . 269 System (cont'd)
Forward Collision
Alert (FCA) . . . . . . . . . . . . . . . . . . 229
Infotainment . . . . . . . . . . . . . 169, 379
Roof Rack . . . . . . . . . . . . . . . . . . . . .114
Systems Driver Assistance . . . . . . . . . . . . . 223
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 130
Text Telephone (TTY) Users . . . . 369
Theft-Deterrent Systems . . . . . . . . . 48Immobilizer . . . . . . . . . . . . . . . . . . . . . 48
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
All-Season . . . . . . . . . . . . . . . . . . . . 296
Buying New Tires . . . . . . . . . . . . . 312
Chains . . . . . . . . . . . . . . . . . . . . . . . . 316
Changing . . . . . . . . . . . . . . . . . . . . . 326
Compact Spare . . . . . . . . . . . . . . . 331
Designations . . . . . . . . . . . . . . . . . 300
Different Size . . . . . . . . . . . . . . . . . 313
If a Tire Goes Flat . . . . . . . . . . . . 317
Inspection . . . . . . . . . . . . . . . . . . . . 310
Pressure . . . . . . . . . . . . . . . . . 303, 304
Pressure Light . . . . . . . . . . . . . . . . 141
Pressure Monitor Operation . . 306
Pressure Monitor System . . . . . 305 Tires (cont'd)
Rotation . . . . . . . . . . . . . . . . . . . . . . 310
Sealant and
Compressor Kit . . . . . . . . . . . . . 319
Sealant and Compressor Kit, Storing . . . . . . . . . . . . . . . . . . 326
Sidewall Labeling . . . . . . . . . . . . . 298
Terminology and Definitions . . 300
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 314
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 315
Wheel Replacement . . . . . . . . . . 316
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . .311
Winter . . . . . . . . . . . . . . . . . . . . . . . . 297
Top Tier Fuel . . . . . . . . . . . . . . . . . . . 240
Tow/Haul Mode . . . . . . . . . . . . . . . . . 204
Tow/Haul Mode Light . . . . . . . . . . . 139
Towing Driving Characteristics . . . . . . . . 243
Equipment . . . . . . . . . . . . . . . . . . . . 251
General Information . . . . . . . . . . 243
Recreational Vehicle . . . . . . . . . . 335
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 247
Trailer Sway Control (TSC) . . . 254
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 335

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402 Index
TractionControl System
(TCS)/StabiliTrak Light . . . . . . 141
Off Light . . . . . . . . . . . . . . . . . . . . . . 140
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . 208
Trailer
Sway Control (TSC) . . . . . . . . . . 254
Towing . . . . . . . . . . . . . . . . . . . . . . . . 247
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . 201
Fluid, Automatic . . . . . . . . . . . . . . 268
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . . . 372
Trip Odometer . . . . . . . . . . . . . . . . . . 130
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . 164
U
Uniform Tire Quality Grading . . . 314
Universal Remote System . . . . . . 156Operation . . . . . . . . . . . . . . . . . . . . . 159
Programming . . . . . . . . . . . . . . . . . 156
Using This Manual . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 47
Canadian Owners . . . . . . . . . . . . . . . 2 Vehicle (cont'd)
Control . . . . . . . . . . . . . . . . . . . . . . . 178
Identification Number (VIN) . . . 362
Load Limits . . . . . . . . . . . . . . . . . . . 188
Messages . . . . . . . . . . . . . . . . . . . . 150
Personalization . . . . . . . . . . . . . . . 151
Remote Start . . . . . . . . . . . . . . . . . . . 34
Security . . . . . . . . . . . . . . . . . . . . . . . . 47
Speed Messages . . . . . . . . . . . . . 151
Towing . . . . . . . . . . . . . . . . . . . . . . . . 335
Vehicle Ahead Indicator . . . . . . . . 139
Vehicle Care Storing the Tire Sealantand Compressor Kit . . . . . . . . . 326
Tire Pressure . . . . . . . . . . . . . . . . . 303
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . 378
Ventilation, Air . . . . . . . . . . . . . . . . . . 174
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Voltage Devices and Wiring . . . . 285
W
Warning Brake System Light . . . . . . . . . . . 137
Caution and Danger . . . . . . . . . . . . . 3
Lane Departure (LDW) . . . . . . . 238
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . 123 Warnings
Hazard Flashers . . . . . . . . . . . . . . 164
Washer Fluid . . . . . . . . . . . . . . . . . . . 276
Wheels Alignment and Tire Balance . . 315
Different Size . . . . . . . . . . . . . . . . . 313
Replacement . . . . . . . . . . . . . . . . . 316
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 311
Where to Put the Restraint . . . . . . 97
Windows . . . . . . . . . . . . . . . . . . . . . . . . 53 Power . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Windshield Replacement . . . . . . . . . . . . . . . . . 282
Wiper/Washer . . . . . . . . . . . . . . . . .117
Winter
Driving . . . . . . . . . . . . . . . . . . . . . . . . 186
Winter Tires . . . . . . . . . . . . . . . . . . . . 297
Wiper Blade Replacement . . . . . . 281
Wipers Rear Washer . . . . . . . . . . . . . . . . . .118
Wireless Charging . . . . . . . . . . . . . . 121
Wiring, High Voltage Devices . . . 285