2019 Acura ILX tire size

532
Maintenance
Checking and Maintaining Tires
Checking Tires
To safely operate your vehicle, your tires must be of the proper type and size, in
good condition with adequate tread, and properly inflated.
■Inflation guidelines
Properly inflated tires provide the best combination of handlin g, tread life, and comfort.
Refer to the driver’s doorjamb label or spec ifications page for the specified pressure.
Underinflated tires wear unevenly, adversely affect handling and fuel economy, and
are more likely to fail from overheating.
Overinflated tires make your vehicle ride harshly, are more prone to road hazards,
and wear unevenly.
Every day before you drive, look at each of the tires. If one looks lower than the
others, check the pressure with a tire gauge.
At least once a month or before long trips, use a gauge to measure the pressure in
all tires, including the spare. Even tires in good condition can lose 1–2 psi (10–20
kPa, 0.1–0.2 kgf/cm
2) per month.
■Inspection guidelines
Every time you check inflation, also examine the tires and valve stems.
Look for:
• Bumps or bulges on the side or in the tread . Replace the tire if you find any cuts,
splits, or cracks in the si de of the tire. Replace it if you see fabric or cord.
• Remove any foreign objects and inspect for air leaks.
• Uneven tread wear. Have a deal er check the wheel alignment.
• Excessive tread wear.
2 Wear Indicators P. 537
•Cracks or other damage around valve stem.
1Checking Tires
Measure the air pressure when tires are cold. This
means the vehicle has been parked for at least three
hours, or driven less than 1 mile (1.6 km). If
necessary, add or releas e air until the specified
pressure is reached.
If checked when hot, tire pressure can be as much as
4–6 psi (30–40 kPa, 0.3–0.4 kgf/cm
2) higher than if
checked when cold.
Have a dealer check the tires if you feel a consistent
vibration while driving. Ne w tires and any that have
been removed and reinst alled should be properly
balanced.
3WARNING
Using tires that are excessively worn or
improperly inflated can cause a crash in
which you can be seriously hurt or killed.
Follow all instruction s in this owner’s
manual regarding ti re inflation and
maintenance.
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533
uuChecking and Maintaining Tires uTire and Loading Information Label
Continued
Maintenance
Tire and Loading Information Label
The label attached to the dr iver’s doorjamb provides necessary tire and loading
information.
Tire Labeling
The tires that came on your vehicle have a
number of markings. Those you should be
aware of are described as shown.
Whenever tires are replaced, they should be replaced with tires of the same size.
1Tire and Loading Information Label
The tire and loading informat ion label attached to the
driver’s doorjamb contains:
aThe number of people your vehicle can carry.
bThe total weight your vehicle can carry. Do not
exceed this weight.
cThe original tire sizes for front, rear and spare.
dThe proper cold tire pressure for front, rear and
spare.
Label
Example
Example Tire Size
Tire
Identification
Number (TIN)
Maximum
Tire Load
Maximum
Tire Pressure
Tire Size
■Tire Sizes
1 Tire Sizes
Following is an example of tire size with an
explanation of what each component means.
P215/45R17 87V
P: Vehicle type (P indi cates passenger vehicle).
215: Tire width in millimeters.
45: Aspect ratio (the tire’s section height as a
percentage of its width).
R: Tire construction code (R indicates radial).
17: Rim diameter in inches.
87: Load index (a numerical code associated with the
maximum load the tire can carry).
V: Speed symbol (an alphab etical code indicating the
maximum speed rating).
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537
uuChecking and Maintaining Tires uWear Indicators
Maintenance
Wear Indicators
The groove where the wear indicator is
located is 1/16 inch (1.6 mm) shallower than
elsewhere on the tire. If the tread has worn so
that the indicator is ex posed, replace the tire.
Worn out tires have po or traction on wet
roads.
Tire Service Life
The life of your tires is dependent on many factors, including driving habits, road
conditions, vehicle loading, inflation pressure, maintenance history, speed, and
environmental conditions (even wh en the tires are not in use).
In addition to regular inspections and inflation pressure maintenance, it is
recommended that you have annual inspections performed once the tires reach five
years old. All tires, including the spare, should be removed from service after 10
years from the date of manufacture, regardle ss of their condition or state of wear.
1Checking Tires
High speed driving
We recommend that you do not drive faster than the
posted speed limits and conditions allow. If you drive
at sustained high speeds (over 99 mph or 160 km/h),
adjust the cold tire pressures as shown below to
avoid excessive heat build up and sudden tire failure.
*1: Vehicle with 18 inch tires
*2: Vehicle with 17 inch tires
Tire Size225/40R18 92V*1
P215/45R17 87V*2
Pressure Front 38 psi (260 kPa, 2.6 kgf/cm2)
Rear 36 psi (250 kPa, 2.5 kgf/cm2)
Example of a Wear
Indicator mark
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538
uuChecking and Maintaining Tires uTire and Wheel Replacement
Maintenance
Tire and Wheel Replacement
Replace your tires with radials of the sa me size, load range, speed rating, and
maximum cold tire pressure ra ting (as shown on the tire’s sidewall). Using tires of a
different size or construction can cause ce rtain vehicle systems such as the ABS and
Vehicle Stability Assist ® (VSA®) system to work incorrectly.
It is best to replace all four tires at the same time. If that isn’t possible, replace the
front or rear tires in pairs.
Whenever you have a tire replaced or reset, make sure that the rubber valve stem is
replaced and that the TPMS sensor is trans ferred from the old valve stem to the new
one.
If you replace a wheel, make sure the wheel ’s specifications match those of the
original wheels.1 Tire and Wheel Replacement
3WARNING
Installing improper tires on your vehicle can
affect handling and stability. This can cause
a crash in which you can be seriously hurt or
killed.
Always use the size and type of tires
recommended in this owner’s manual.
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540
uuChecking and Maintaining Tires uWinter Tires
Maintenance
Winter Tires
If driving on snowy or frozen roads, mount all season marked M+S tires, snow tires,
or tire chains; reduce speed; and maintain sufficient distance between vehicles when
driving.
Be particularly careful when operating the steering wheel or brakes to prevent
skidding.
Use tire chains, snow tires, or all season ti res when necessary or according to the law.
When mounting, refer to the following points.
For winter tires:
• Select the size and load ranges that are the same as the original tires.
• Mount the tires to all four wheels.
For tire chains:
• Install them on the front tires only.
• Because your vehicle has limited tire clearance, we strongly recommend using the
chains listed below:
• Follow the chain manufacturer's instruction when installing. Mount them as
tightly as you can.
• Check that the chains do not to uch the brake lines or suspension.
• Drive slowly.
Cable-type: SCC Ra dial Chain SC1032
Cable-type: SCC Radial Chain SC1036
1Winter Tires
NOTICE
Traction devices that are the wrong size or improperly
installed can damage your vehicle's brake lines,
suspension, body, and wheels. Stop driving if they are
hitting any part of the vehicle.
When tire chains are mounted, follow the chain
manufacturer's instructi ons regarding vehicle
operational limits.
If your vehicle is equipp ed with summer tires, be
aware that these tires are not designed for winter
driving conditions. For more information, contact a
dealer.
3WARNING
Using the wrong chains, or not properly
installing chains, can damage the brake
lines and cause a crash in which you can be
seriously injured or killed.
Follow all instruction s in this owner's
manual regarding the selection and use of
tire chains.
Models with P215/45R17 87V tires
Models with 225/40R18 92V tires
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570
uuIf a Tire Goes Flat uChanging a Flat Tire
Handling the Unexpected
Changing a Flat Tire
If a tire goes flat while driving, grasp the steering wheel firmly, and brake gradually
to reduce speed. Then, stop in a safe place. Replace the flat tire with a compact
spare tire. Go to a dealer as soon as possible to have th e full-size tire repaired or
replaced.
1. Park the vehicle on firm, level, non-slip pery surface and apply the parking brake.
2. Move the shift lever in
(P.
3. Turn on the hazard warning lights an d set the power mode to VEHICLE OFF
(LOCK).
Models with optional spare tire
1 Changing a Flat Tire
Follow compact spare precautions:
Periodically check the tire pressure of the compact
spare. It should be set to the specified pressure.
Specified Pressure: 60 psi (420 kPa)
When driving with the compact spare tire, keep the
vehicle speed under 50 mph (80 km/h). Replace with
a full-size tire as soon as possible.
The compact spare tire and wheel in your vehicle are
specifically for this model. Do not use them with
another vehicle. Do not us e another type of compact
spare tire or wheel with your vehicle.
Do not mount tire chains on a compact spare tire.
If a chain-mounted front tire goes flat, remove one of
the full-size rear tires and replace it with the compact
spare tire. Remove the flat front tire and replace it
with the full-size tire that was removed from the rear.
Mount the tire chains on the front tire.
Do not use a puncture-repairi ng agent on a flat tire,
as it can damage the tire pressure sensor.
Do not mount the compact spare on the front. If
mounted on the front, the compact spare, smaller in
size than the full-size tire, may damage the
differential.
If either front tire goes flat, remove the rear tire on
the same side, and mount the compact spare on the
rear and the rear tire on the front.
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Continued575
uuIf a Tire Goes Flat uChanging a Flat Tire
Handling the Unexpected
1. Remove the center cap.
2. Place the flat tire face down in the spare tire
well.
3. Remove the spacer cone from the wing
bolt, flip it over, and insert it back on the
bolt. Secure the flat tire with the wing bolt.
4. Securely put the jack and wheel nut wrench
back in the tool case. Store the case in the
trunk.
■Storing the Flat Tire1Storing the Flat Tire
3WARNING
Loose items can fly around the interior in a
crash and can seriously injure the
occupants.
Store the wheel, jack, and tools securely
before driving.
Center Cap
Spacer
Cone Wing Bolt
For full-size
tire For compact
spare tire
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589
uuIndicator, Coming On/Blinking uIf the Low Tire Pressure/TPMS Indicator Comes On or Blinks
Handling the Unexpected
If the Low Tire Pressure/TPMS Indicator Comes On or
Blinks
■Reasons for the indicator to come on or blink
A tire pressure is significantly low. If there is a problem with the TPMS or
the compact spare tire is installed, the indicator blinks for about one
minute, and then stays on.
■What to do when th e indicator comes on
Drive carefully and avoid abrupt cornering and hard braking.
Stop your vehicle in a safe place. Ch eck the tire pressure and adjust the
pressure to the specified level. The spec ified tire pressure is on a label on
the driver side doorjamb.
■What to do when the indicator blinks
Have the tire inspected by a dealer as soon as possible. If the compact
spare tire causes the indica tor to blink, change the tire to a full-size tire.
The indicator goes off after driving for a few miles (kilometers).
1 If the Low Tire Pressure/TPMS Indicator Comes On or Blinks
NOTICE
Driving on an extremely unde rinflated tire can cause
it to overheat. An overheated tire can fail. Always
inflate your tires to the prescribed levelM
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