The TPMS Light on the 2018 Honda Accord

The Honda Accord‘s tire pressure monitoring system (TPMS) light is required by law
to illuminate when tire pressures fall below their appropriate levels, so make sure
you use a tire gauge regularly and add air as necessary to maintain appropriate
pressures.
Properly inflated tires offer improved traction and fuel economy while decreasing
risk of tire failure.

The TPMS Light on the 2018 Honda Accord
The TPMS Light on the 2018 Honda Accord

Tires – TPMS Light

Your tires support the weight of your vehicle, so it is vitally important that they are
correctly inflated. Incorrect tire pressure can lead to premature tire wear, uneven
tread wear and unsafe driving conditions; you can find the recommended air
pressure setting in either your owner’s manual or driver door jamb.
The first number on a tire’s sidewall indicates its size in inches; while its second
number identifies its type (R, S, T or LT); finally its third number represents
maximum load-carrying capacity per square inch.
If your Tire Pressure Monitoring System (TPMS Light) light illuminates, immediately
inspect tire pressure levels. For best results, do this when the tires are cold; once
inflated, the light should reset and turn off; otherwise a certified Honda service
technician may need to inspect them as this could indicate that something more
serious may be amiss and help find solutions.

Tire Pressure

If your tire pressure monitoring system (TPMS Light) light came on while you were driving,
this likely indicates one or more tires is low on air pressure. This is particularly
common during the winter season when temperatures decrease and cause tires’ air
pressure levels to decline.
Tire pressure is essential to safe tread wear, proper handling and fuel efficiency.
Therefore it’s wise to periodically check tire pressure, especially before significant
temperature fluctuations such as seasonal changes.
Find the recommended tire pressure on the doorjamb of your vehicle or in its
owner’s manual, then use a tire pressure gauge to read it off of each valve stem cap
and measure air pressure inside of each tire.
Tire pressure testing should always be completed when your tires are cold, meaning
they have not been driven recently. This allows the tires to expand properly and
give a more accurate reading.

TPMS

Honda Tire Pressure Monitoring Systems (TPMS Light) are systems designed to monitor
tire air pressure on your vehicle, either directly using sensors in each tire or
indirectly through measures like wheel speed sensors and outside temperature. Your
owner’s manual should indicate which TPMS Light your Honda uses.
Tire pressure checks should be performed regularly or whenever there are
substantial seasonal temperature variations, to help ensure you do not drive on
under-inflated tires, which could potentially overheat and result in blowout or low
tire pressure.
Tire Pressure Monitor Systems (TPMS Light) come equipped with an instrument panel
warning light which indicates when at least one tire falls below their recommended
or calibrated level, such as with low tire pressure indicator lights on individual tires.
Inflation with nitrogen may make the indicator light go away; but you should still
regularly check tire pressure.

Tire Inflation

Manufacturers typically provide an optimal tire pressure specification in your owner
manual or as a sticker in the driver’s door jamb for optimal handling and treadwear
performance. When cold, your tires should be at this pressure; to maintain optimal
handling and treadwear. In general, check tire pressure regularly or when seasonal
temperatures change significantly.
For an accurate reading with a tire pressure gauge, make sure that both tires are
completely cold (not hot from driving or sitting). Press down on the valve stem until
a hissing sound occurs before reading off your gauge’s reading against its
recommended pressure levels; if they differ, release air until they match; otherwise
fill them up.
Underinflated tires increase rolling resistance and friction with the road, which
results in greater fuel expenditure and wear-and-tear on tires more rapidly.
Regularly checking tire pressures is vital to getting maximum fuel economy and
avoiding premature tire failure.

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