2020 CHEVROLET IMPALA wheel size

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
Vehicle Care 249
Different Size Tires and
Wheels
If wheels or tires are installed that
are a different size than the original
equipment wheels and tires, vehicle
performance, including its braking,
ride and handling characteristics,
stability, and resistance to rollover
may be affected. If the vehicle has
electronic systems such as antilock
brakes, rollover airbags, traction
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(Continued)
Warning (Continued)
developed for the vehicle, and
have them properly installed by a
GM certified technician.
See Buying New Tires 0247 and
Accessories and Modifications
0 200.
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.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
252 Vehicle Care
Warning (Continued)
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.
If a Tire Goes Flat
It is unusual for a tire to blow out
while driving, especially if the tires
are maintained properly. SeeTires
0 231. If air goes out of a tire, it is
much more likely to leak out slowly.
But if there ever is 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
that has been driven on while
severely underinflated or flat.
Have your dealer or an authorized
(Continued)
Warning (Continued)
tire service center repair or
replace the flat tire as soon as
possible.
{Warning
Lifting a vehicle and getting under
it to do maintenance or repairs is
dangerous without the
appropriate safety equipment and
training. If a jack is provided with
the vehicle, it is designed only for
changing a flat tire. If it is used for
anything else, you or others could
be badly injured or killed if the
vehicle slips off the jack. If a jack
is provided with the vehicle, only
use it for changing a flat tire.
If a tire goes flat, avoid further tire
and wheel damage by driving slowly
to a level place, well off the road,
if possible. Turn on the hazard
warning flashers. See Hazard
Warning Flashers 0127.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
Vehicle Care 257
Warning (Continued)
using accessory locking wheel
nuts. SeeCapacities and
Specifications 0288 for original
equipment wheel nut torque
specifications.
Caution
Improperly tightened wheel nuts
can lead to brake pulsation and
rotor damage. To avoid expensive
brake repairs, evenly tighten the
wheel nuts in the proper
sequence and to the proper
torque specification. See
Capacities and Specifications
0 288 for the wheel nut torque
specification.17. Tighten the wheel nuts firmly in a crisscross sequence, as
shown.
18. Lower the jack all the way and remove the jack from under the
vehicle.
19. Tighten the wheel nuts firmly with the wheel wrench.
When reinstalling the wheel cover or
center cap on the full-size tire,
tighten all five plastic caps hand
snug, then tighten them with the
wheel wrench an additional
one-quarter 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.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
258 Vehicle Care
1. Turn the wrenchcounterclockwise to remove the
fastener.
2. Replace the fastener with the one provided in the foam.
3. Turn the wrench clockwise to tighten the fastener.
4. Replace the foam, jack and tools, and the tire.
5. Turn the retainer nut clockwise to secure the tire.
6. Place the floor cover on the wheel.
To store the compact spare tire, use
the shorter mounting bolt. 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 AWD (if equipped), 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.
Caution
When the compact spare is
installed, do not take the vehicle
through an automatic car wash
with guide rails. The compact
spare can get caught on the rails
which can damage the tire, wheel,
and other parts of the vehicle.

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
Index 325
Storage Compartments . . . . . . . . . . 84
StrutsGas . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 147
Summer Tires . . . . . . . . . . . . . . . . . . 233
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 27
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Forward CollisionAlert (FCA) . . . . . . . . . . . . . . . . . . 178
Infotainment . . . . . . . . . . . . . 132, 304
Systems Driver Assistance . . . . . . . . . . . . . 174
T
Tachometer . . . . . . . . . . . . . . . . . . . . . . 98
TaillampsBulb Replacement . . . . . . . . . . . . 223
Text Telephone (TTY) Users . . . . 293
Theft-Deterrent Systems . . . . . . . . . 22 Immobilizer . . . . . . . . . . . . . . . . . . . . . 22
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231 All-Season . . . . . . . . . . . . . . . . . . . . 232
Buying New Tires . . . . . . . . . . . . . 247
Chains . . . . . . . . . . . . . . . . . . . . . . . . 251
Changing . . . . . . . . . . . . . . . . . . . . . 253 Tires (cont'd)
Compact Spare . . . . . . . . . . . . . . . 258
Designations . . . . . . . . . . . . . . . . . 236
Different Size . . . . . . . . . . . . . . . . . 249
If a Tire Goes Flat . . . . . . . . . . . . 252
Inspection . . . . . . . . . . . . . . . . . . . . 245
Low Profile . . . . . . . . . . . . . . . . . . . 233
Pressure . . . . . . . . . . . . . . . . . 239, 240
Pressure Light . . . . . . . . . . . . . . . . 108
Pressure Monitor Operation . . 242
Pressure Monitor System . . . . . 241
Rotation . . . . . . . . . . . . . . . . . . . . . . 245
Sidewall Labeling . . . . . . . . . . . . . 234
Terminology and Definitions . . 237
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 249
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 250
Wheel Replacement . . . . . . . . . . 251
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 246
Winter . . . . . . . . . . . . . . . . . . . . . . . . 233
Top Tier Fuel . . . . . . . . . . . . . . . . . . . 185
Towing
Driving Characteristics . . . . . . . . 189
Equipment . . . . . . . . . . . . . . . . . . . . 195
General Information . . . . . . . . . . 189
Recreational Vehicle . . . . . . . . . . 262 Towing (cont'd)
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 193
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 262
Traction
Control System(TCS)/StabiliTrak Light . . . . . . 107
Off Light . . . . . . . . . . . . . . . . . . . . . . 106
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . 163
Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . 193
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . 158
Fluid, Automatic . . . . . . . . . . . . . . 207
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . . . 296
Trip Odometer . . . . . . . . . . . . . . . . . . . 98
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . 128
Turn Signal Bulb Replacement . . . . . . . . . . . . 223
U
Umbrella Storage . . . . . . . . . . . . . . . . 86
Uniform Tire Quality Grading . . . 249
Universal Remote System . . . . . . 121Operation . . . . . . . . . . . . . . . . . . . . . 123

Chevrolet Impala Owner Manual (GMNA-Localizing-U.S./Canada-13688912) -
2020 - CRC - 6/5/19
326 Index
Universal Remote System (cont'd)Programming . . . . . . . . . . . . . . . . . 121
Using This Manual . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 21
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 142
Identification Number (VIN) . . . 287
Load Limits . . . . . . . . . . . . . . . . . . . 147
Messages . . . . . . . . . . . . . . . . . . . . .112
Personalization . . . . . . . . . . . . . . . .113
Remote Start . . . . . . . . . . . . . . . . . . . 14
Security . . . . . . . . . . . . . . . . . . . . . . . . 21
Speed Messages . . . . . . . . . . . . . .113
Towing . . . . . . . . . . . . . . . . . . . . . . . . 262
Vehicle Ahead Indicator . . . . . . . . 106
Vehicle Care Tire Pressure . . . . . . . . . . . . . . . . . 239
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . 302
Ventilation, Air . . . . . . . . . . . . . . . . . . 137
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Voltage Devices and Wiring . . . . 225
W
Warning Brake System Light . . . . . . . . . . . 104 Warning (cont'd)
Caution and Danger . . . . . . . . . . . . . 2
Lane Departure (LDW) . . . . . . . 184
Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . . . . 95
Warnings Hazard Flashers . . . . . . . . . . . . . . 127
Washer Fluid . . . . . . . . . . . . . . . . . . . 214
Wheels Alignment and Tire Balance . . 250
Different Size . . . . . . . . . . . . . . . . . 249
Replacement . . . . . . . . . . . . . . . . . 251
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Where to Put the Restraint . . . . . . 69
Windows . . . . . . . . . . . . . . . . . . . . . . . . 25 Power . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Windshield
Replacement . . . . . . . . . . . . . . . . . 219
Wiper/Washer . . . . . . . . . . . . . . . . . . 90
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . 145
Winter Tires . . . . . . . . . . . . . . . . . . . . 233
Wiper Blade Replacement . . . . . . 218
Wireless Charging . . . . . . . . . . . . . . . 92
Wiring, High Voltage Devices . . . 225