2018 CHEVROLET TAHOE tire size

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349385) - 2018 - crc - 11/3/17
354 Vehicle Care
{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 0352 and
Accessories and Modifications
0 291.
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
norm due to variations in driving
habits, service practices and
differences in road
characteristics and climate.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349385) - 2018 - crc - 11/3/17
356 Vehicle Care
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 265/65R18,
P265/65R18, P275/55R20,
or P285/45R22 size tires, 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 Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349385) - 2018 - crc - 11/3/17
Vehicle Care 357
Warning (Continued)
traction device if it is contacting
the vehicle. Do not spin the
wheels.
If traction devices are used, install
them on the rear tires.
Caution
If the vehicle has P255/70R17,
P265/70R17, or LT265/70R17
size tires, use tire chains only
where legal and only when
necessary. Use chains that are
the proper size for the tires. Install
them on the rear tires only. Do not
use chains on the front tires.
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,(Continued)
Caution (Continued)
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 blowout
while driving, especially if the tires
are maintained properly. 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
tire service center repair or
replace the flat tire as soon as
possible.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349385) - 2018 - crc - 11/3/17
Vehicle Care 367
7. Make sure the tire is storedsecurely. Push, pull, and then
try to turn the tire. If the tire
moves, use the wheel wrench
to tighten the cable.
8. Reinstall the spare tire lock.
9. Reinstall the hoist shaft access cover.
If equipped, reinstall the hitch
cover and turn the retainers
clockwise. To store the tools:
1. Return the tools (wheel wrench, jack handle, and jack
handle extensions) to the
tool bag.
2. Assemble the wheel blocks and jack together with the
wing nut.
3. Position the jack and wheel blocks in the driver side trim
panel over the wheelhouse.
4. Turn the jack knob clockwise until the jack is secured tight in
the mounting bracket. Be sure
to position the holes in the
base of the jack onto the pin in
the mounting bracket.
5. Use the retaining bracket to fasten the tool bag on the stud
and turn the wing nut clockwise
to secure.
6. Close the trim panel door.
Full-Size Spare Tire
If this vehicle came with a full-size
spare tire, it was fully inflated when
new, however, it can lose air over time. Check the inflation pressure
regularly.
See
Tire Pressure 0343 and
Vehicle Load Limits 0212. For
instructions on how to remove,
install, or store a spare tire, see Tire
Changing 0359.
If equipped with a temporary use
full-size spare tire, it is indicated on
the tire sidewall. See Tire Sidewall
Labeling 0338. This spare tire
should not be driven on over
112 km/h (70 mph), or 88 km/h
(55 mph) when pulling a trailer, at
the proper inflation pressure. Repair
and replace the road tire as soon as
it is convenient, and stow the spare
tire for future use.
Caution
If the vehicle has four-wheel drive
and a different size spare tire is
installed, do not drive in
four-wheel drive until the flat tire
is repaired and/or replaced. The
vehicle could be damaged and
(Continued)

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349385) - 2018 - crc - 11/3/17
368 Vehicle Care
Caution (Continued)
the repairs would not be covered
by the warranty. Never use
four-wheel drive when a different
size spare tire is installed on the
vehicle.
The vehicle may have a different
size spare tire than the road tires
originally installed on the vehicle.
This spare tire was developed for
use on this vehicle, so it is all right
to drive on it. If the vehicle has
four-wheel drive and a different size
spare tire is installed, drive only in
two-wheel drive.
After installing the spare tire on the
vehicle, stop as soon as possible
and check that the spare tire is
correctly inflated.
Have the damaged or flat road tire
repaired or replaced and installed
back onto the vehicle as soon as
possible so the spare tire will be
available in case it is needed again. Do not mix tires and wheels of
different sizes, because they will not
fit. Keep your spare tire and its
wheel together. If the vehicle has a
spare tire that does not match the
original road tires and wheels in size
and type, do not include the spare in
the tire rotation.
Jump Starting
Jump Starting - North
America
For a heavy-duty Suburban, see the
Suburban Heavy-Duty Package
supplement.
For more information about the
vehicle battery, see
Battery - North
America 0314.
If the vehicle's battery (or batteries)
has run down, you may want to use
another vehicle and some jumper
cables to start your vehicle. Be sure
to use the following steps to do it
safely.
{Warning
WARNING: Battery posts,
terminals, and related
accessories contain lead and lead
compounds, chemicals known to
the State of California to cause
cancer and birth defects or other
reproductive harm. Batteries also
(Continued)

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349385) - 2018 - crc - 11/3/17
434 Index
Fluid (cont'd)Four-Wheel Drive
Transfer Case . . . . . . . . . . . . . . . 234
Power Steering . . . . . . . . . . . . . . . .311
Washer . . . . . . . . . . . . . . . . . . . . . . . .311
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 186 Bulb Replacement . . . . . . . . . . . . 322
Folding Mirrors . . . . . . . . . . . . . . . . . . 57
Forward Automatic Braking . . . . . 261
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 258
Four-Wheel Drive . . . . . . . . . . 234, 314
Four-Wheel-Drive Light . . . . . . . . . 156
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 414
Front Axle . . . . . . . . . . . . . . . . . . . . . . 315
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 66
Heated and Ventilated . . . . . . . . . . 72
Front Turn Signal Lamps . . . . . . . 322
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266 Additives . . . . . . . . . . . . . . . . . . . . . 268
Economy Driving . . . . . . . . . . . . . . . 29
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 270
Filling the Tank . . . . . . . . . . . . . . . 269 Fuel (cont'd)
Foreign Countries . . . . . . . . . . . . 267
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 147
Low Fuel Warning Light . . . . . . . 159
Management, Active . . . . . . . . . . 226
Requirements, California . . . . . 267
Full-Size Spare Tire . . . . . . . . . . . . 367
Fuses Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 325
Fuses and Circuit Breakers . . . 325
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . 330, 333
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 335
G
Garage Door Opener . . . . . . . . . . . 178Programming . . . . . . . . . . . . . . . . . 178
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 319
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . 149
Engine Oil Pressure . . . . . . . . . . 148
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Odometer . . . . . . . . . . . . . . . . . . . . . 147
Speedometer . . . . . . . . . . . . . . . . . 147
Tachometer . . . . . . . . . . . . . . . . . . . 147 Gauges (cont'd)
Trip Odometer . . . . . . . . . . . . . . . . 147
Voltmeter . . . . . . . . . . . . . . . . . . . . . 150
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . 142
General Information Service and Maintenance . . . . . 387
Towing . . . . . . . . . . . . . . . . . . . . . . . . 271
Vehicle Care . . . . . . . . . . . . . . . . . . 290
Glass Replacement . . . . . . . . . . . . . 319
Glove Box . . . . . . . . . . . . . . . . . . . . . . 127
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 408
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 321
Hazard Warning Flashers . . . . . . . 185
Head Restraints . . . . . . . . . . . . . . . . . 65
Head-up Display . . . . . . . . . . . . . . . . 165
Headlamps . . . . . . . . . . . . . . . . . . . . . 321Aiming . . . . . . . . . . . . . . . . . . . . . . . . 320
Automatic . . . . . . . . . . . . . . . . . . . . . 184
Bulb Replacement . . . . . . . . . . . . 321
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . 184
Flash-to-Pass . . . . . . . . . . . . . . . . . 183
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . 321

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349385) - 2018 - crc - 11/3/17
440 Index
TaillampsBulb Replacement . . . . . . . . . . . . 322
Text Telephone (TTY) Users . . . . 407
Theft-Deterrent Systems . . . . . . . . . 55 Immobilizer . . . . . . . . . . . . . . . . . . . . . 55
Third-Row Seats . . . . . . . . . . . . . . . . . 79
Throttle, Adjustable . . . . . . . . . . . . . 217
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336 All-Season . . . . . . . . . . . . . . . . . . . . 337
All-Terrain . . . . . . . . . . . . . . . . . . . . 338
Buying New Tires . . . . . . . . . . . . . 352
Chains . . . . . . . . . . . . . . . . . . . . . . . . 356
Changing . . . . . . . . . . . . . . . . . . . . . 359
Designations . . . . . . . . . . . . . . . . . 339
Different Size . . . . . . . . . . . . . . . . . 353
Full-Size Spare . . . . . . . . . . . . . . . 367
If a Tire Goes Flat . . . . . . . . . . . . 357
Inspection . . . . . . . . . . . . . . . . . . . . 350
Low Profile . . . . . . . . . . . . . . . . . . . 338
Pressure . . . . . . . . . . . . . . . . . 343, 344
Pressure Light . . . . . . . . . . . . . . . . 158
Pressure Monitor Operation . . 346
Pressure Monitor System . . . . . 345
Rotation . . . . . . . . . . . . . . . . . . . . . . 350
Sidewall Labeling . . . . . . . . . . . . . 338
Terminology and Definitions . . 340 Tires (cont'd)
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 354
Wheel Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . . . 355
Wheel Replacement . . . . . . . . . . 355
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 351
Winter . . . . . . . . . . . . . . . . . . . . . . . . 337
Tow/Haul Mode . . . . . . . . . . . . . . . . . 233
Tow/Haul Mode Light . . . . . . . . . . . 156
Towing Driving Characteristics . . . . . . . . 271
Equipment . . . . . . . . . . . . . . . . . . . . 278
General Information . . . . . . . . . . 271
Recreational Vehicle . . . . . . . . . . 372
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 274
Trailer Sway Control (TSC) . . . 286
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 372
Traction Control System (TCS)/StabiliTrak Light . . . . . . . . . . . . . 158
Off Light . . . . . . . . . . . . . . . . . . . . . . 157
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . 242
Trailer Sway Control (TSC) . . . . . . . . . . 286
Towing . . . . . . . . . . . . . . . . . . . . . . . . 274 Transfer Case . . . . . . . . . . . . . . . . . . 234
Transmission
Automatic . . . . . . . . . . . . . . . . . . . . . 228
Fluid, Automatic . . . . . . . . . 301, 304
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . . . 410
Trip Odometer . . . . . . . . . . . . . . . . . . 147
Turn and Lane-Change
Signals . . . . . . . . . . . . . . . . . . . . . . . . 185
Turn Signal Bulb Replacement . . . . . . . . . . . . 322
U
Uniform Tire Quality Grading . . . 354
Universal Remote System . . . . . . 178
Operation . . . . . . . . . . . . . . . . . . . . . 180
Programming . . . . . . . . . . . . . . . . . 178
Using This Manual . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 53
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 202
Identification Number (VIN) . . . 401
Load Limits . . . . . . . . . . . . . . . . . . . 212
Messages . . . . . . . . . . . . . . . . . . . . 169
Personalization . . . . . . . . . . . . . . . 170
Remote Start . . . . . . . . . . . . . . . . . . . 43

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349385) - 2018 - crc - 11/3/17
Index 441
Vehicle (cont'd)Security . . . . . . . . . . . . . . . . . . . . . . . . 53
Speed Messages . . . . . . . . . . . . . 169
Towing . . . . . . . . . . . . . . . . . . . . . . . . 372
Vehicle Ahead Indicator . . . . . . . . 157
Vehicle Care Tire Pressure . . . . . . . . . . . . . . . . . 343
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . 416
Ventilation, Air . . . . . . . . . . . . . . . . . . 197
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Voltmeter Gauge . . . . . . . . . . . . . . . 150
W
Warning Brake System Light . . . . . . . . . . . 155
Caution and Danger . . . . . . . . . . . . . 3
Lane Departure (LDW) . . . . . . . 264
Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . . . 142
Warnings Hazard Flashers . . . . . . . . . . . . . . 185
Washer Fluid . . . . . . . . . . . . . . . . . . . 311
Wheels Alignment and Tire Balance . . 355
Different Size . . . . . . . . . . . . . . . . . 353
Replacement . . . . . . . . . . . . . . . . . 355 When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 351
Where to Put the Restraint . . . . . 111
Wi-Fi . . . . . . . . . . . . . . . . . . . . . . . . . . . 421
Windows . . . . . . . . . . . . . . . . . . . . . . . . 60 Power . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Windshield
Replacement . . . . . . . . . . . . . . . . . 319
Wiper/Washer . . . . . . . . . . . . . . . . 134
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . 210
Winter Tires . . . . . . . . . . . . . . . . . . . . 337
Wiper Blade Replacement . . . . . . 318
Wipers Rear Washer . . . . . . . . . . . . . . . . . 136
Wireless Charging . . . . . . . . . . . . . . 140