Cold Or Rainy Weather Driving; Air Conditioning; Testing Of Readiness Codes - Honda Civic Sedan 2017 Owner's Manual

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Temperature
The temperature grades are A (the highest), B, and C, representing the tire's
resistance to the generation of heat and its ability to dissipate heat when tested
under controlled conditions on a specified indoor laboratory test wheel. Sustained
high temperature can cause the material of the tire to degenerate and reduce
tire life, and excessive temperature can lead to sudden tire failure. The grade
C corresponds to a level of performance which all passenger car tires must
meet under the Federal Motor Vehicle Safety Standard No. 109. Grades B and
A represent higher levels of performance on the laboratory test wheel than the
minimum required by law.
WARNING: The temperature grade for this tire is established for a tire that
is properly inflated and not overloaded. Excessive speed, underinflation, or
excessive loading, either separately or in combination, can cause heat buildup
and possible tire failure.

Cold or Rainy Weather Driving

Models having SPORT mode with summer tires
Summer-only and Ultra High Performance (UHP) tires are very sensitive to ambient
temperatures and are designed to be used at temperatures above 45°F (7°C). Below
that temperature, Summer-only and UHP tires provide decreasing amounts of grip
and other performance attributes. At temperatures below -4°F (-20°C), the tire treads
may become brittle, resulting in permanent damage to the tread. A damaged tire
may fail during use. Therefore, if you will operate the vehicle when temperatures
are below 45°F (7°C), we recommend you install other tires (e.g., mud+snow, winter)
designed to perform under the expected conditions.
WARNING
Use of Summer-only or Ultra High Performance tires at temperatures below 45°F
(7°C) may lead to a loss of performance and control, which could result in a crash,
serious injury, or death.

Air Conditioning

To ensure proper and safe operation, the Society of Automotive Engineers (SAE
J2845) recommends that the refrigerant system be serviced only by trained and
certified technicians.
Never repair or replace the air conditioning evaporator (cooling coil) with one
removed from a used or salvaged vehicle.
New replacement mobile air conditioning evaporators must be certified (and
labeled) as meeting SAE Standard J2842.
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NOTICE
Vented refrigerant is harmful to the environment. To avoid refrigerant from
venting, never replace the evaporator with one removed from a used or salvaged
vehicle.

Testing of Readiness Codes

Your vehicle has readiness codes as part of the onboard self-diagnostic system.
Some states use these codes for testing to verify whether your vehicle's emissions
components are working properly. The codes may not be read if you go through the
testing just after the battery has gone dead or been disconnected.
To check if they are set, turn the vehicle on without starting the engine. The
malfunction indicator lamp will come on for several seconds. If it goes off, the
readiness codes are set. If it blinks five times, the readiness codes are not set.
If you are required to have your vehicle tested before the readiness codes are set,
prepare the vehicle for retesting by doing the following:
1. Fill the gas tank to approximately 3/4 full.
2. Park the vehicle and leave the engine off for 6 hours or more.
3. Make sure the ambient temperature is between 40°F and 95°F (4°C and 35°C).
4. Start the engine without touching the accelerator pedal and let it idle for 20
seconds.
5. Keep the vehicle in Park (P) or Neutral for manual transmission. Increase the
engine speed to 2,000 rpm, and hold it there for about 3 minutes.
6. Let the engine idle with your foot off the accelerator for 20 seconds.
7. Select a nearby, lightly traveled major highway where you can maintain a speed
of 50 to 60 mph (80 to 97 km/h) for at least 20 minutes. Drive on the highway
with the vehicle in Drive (D) or 5th gear. Do not use cruise control. When traffic
allows, drive for 90 seconds without using the accelerator pedal. (Vehicle speed
may vary slightly; this is OK.) If you cannot do this for a continuous 90 seconds
because of traffic conditions, drive for at least 30 seconds, then repeat two more
times (for a total of 90 seconds).
8. Drive in city or suburban traffic for at least 10 minutes. When traffic conditions
allow, let the vehicle coast for several seconds without using the accelerator
pedal or the brake pedal.
9. Park the vehicle and leave the engine off for 30 minutes.
The readiness codes are erased when the battery is disconnected and set again
only after several days of driving under a variety of conditions.
If a testing facility determines that the readiness codes are not set, you may be
requested to return at a later date to complete the test, or you can see your dealer.
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