2010 HONDA FIT sensor

U.S. models only
Your vehicle is equipped with a tire
pressure monitoring system (TPMS)
that turns on every time you start the
engine and monitors the pressure in
your tires while driving.
Each tire has its own pressure sensor
(not including the spare tire). If the
air pressure of a tire becomes
significantly low, the sensor in that
tire immediately sends a signal that
causes the low tire pressure indicator
to come on.
Low Tire Pressure Indicator
When the low tire pressure indicator
is on, one or more of your tires is
significantly underinflated. You
should stop and check your tires as
soon as possible, and inflate them to
the proper pressure as indicated on
the vehicle's tire information placard.
If you think you can safely drive a
short distance to a service station,
proceed slowly, and inflate the tire to
the recommended pressure shown
on the driver's doorjamb.
If the tire is flat, or if the tire pressure
is too low to continue driving, replace
the tire with the compact spare tire
(see page 284). If you cannot make the low tire
pressure indicator go out after
inflating the tires to the specified
values, have your dealer check the
system as soon as possible.
Driving on a significantly under-
inflated tire causes the tire to
overheat and can lead to tire failure.
Under-inflation also reduces fuel
efficiency and tire tread life, and may
affect the vehicle's handling and
stopping ability.
Because tire pressure varies by
temperature and other conditions,
the low tire pressure indicator may
come on unexpectedly.
CONTINUED
Tire Pressure Monitoring System (TPMS)
235
Driving
Table of Contents

Changing a Tire with TPMS
If you have a flat tire, the low tire
pressure indicator will come on.
Replace the flat tire with the compact
spare tire (see page 284).
Each wheel (except the compact
spare tire wheel) is equipped with a
tire pressure sensor mounted inside
the tire behind the valve stem. You
must use TPMS specific wheels. It is
recommended that you always have
your tires serviced by your dealer or
qualified technician.
After you replace the flat tire with the
compact spare tire, the low tire
pressure indicator stays on. This is
normal; the system is not monitoring
the spare tire pressure. Manually
check the spare tire pressure to be
sure it is correct. After several miles
(kilometers) driving with the
compact spare tire, the TPMS
indicator comes on and the low tire
pressure indicator goes off.The low tire pressure indicator or the
TPMS indicator will go off, after
several miles (kilometers) driving,
when you replace the spare tire with
the specified regular tire equipped
with the tire pressure monitorsensor.
Never use a puncture-repairing agent
in a flat tire. If used, you will have to
replace the tire pressure sensor.
Have the flat tire repaired by your
dealer as soon as possible.As required by the FCC: This device
complies with Part 15 of the FCC rules.
Operation is subject to the following twoconditions: (1) This device may notcause harmful interference, and (2) thisdevice must accept any interference
received, including interference that may cause undesired operation.
Changes or modifications not expresslyapproved by the party responsible forcompliance could void the user'sauthority to operate the equipment.
This device complies with IndustryCanada Standard RSS-210. Operation is
subject to the following two conditions: (1) this device may not causeinterference, and (2) this device must
accept any interference that may causeundesired operation of the device.
Tire Pressure Monitoring System (TPMS)
237
Driving
Table of Contents

21. Place the flat tire face down in thespare tire well.
22. Secure the flat tire by screwing the wing bolt back into its hole. 23. Store the jack. Place the tool kit in
the center of the flat tire.
Loose items can fly around the
interior in a crash and could
seriously injure the occupants.
Store the wheel, jack, and tools
securely before driving. 24. Place the floor lid in the cargo
area.
25. Store the wheel cover or center cap in the cargo area. Make sure it
will not get scratched or damaged.
26. Close the tailgate. 27.
On U.S. models
Your vehicle's original tire has a
tire pressure monitoring system
sensor. To replace a tire, refer to
Changing a Tire with TPMS (see
page 237).
For normal tire For spare tire
CONTINUED
Changing a Flat Tire
289
Taking Care of the Unexpected
Table of Contents

Exhaust Emissions Controls
The exhaust emissions controls
include four systems: PGM-FI,
ignition timing control, exhaust gas
recirculation, and three way catalytic
converter. These four systems work
together to control the engine's
combustion and minimize the
amount of HC, CO, and NOx that
come out the tailpipe. The exhaust
emissions control systems are
separate from the crankcase and
evaporative emissions controlsystems.PGM-FI System
The PGM-FI system uses sequential
multiport fuel injection. It has three
subsystems: air intake, engine
control, and fuel control. The
powertrain control module (PCM) in
automatic transmission vehicles or
the engine control module (ECM) in
manual transmission vehicles uses
various sensors to determine how
much air is going into the engine. It
then controls how much fuel to inject
under all operating conditions.
Ignition Timing Control System
This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
Exhaust Gas Recirculation (EGR)System
The exhaust gas recirculation (EGR)
system takes some of the exhaust gas
and routes it back into the intake
manifold. Adding exhaust gas to the
air/fuel mixture reduces the amount
of NOx produced when the fuel is burned.
Three Way Catalytic Converter
The three way catalytic converter is
in the exhaust system. Through
chemical reactions, it converts HC,
CO, and NOx in the engine's exhaust
to carbon dioxide (CO 2), nitrogen
(N 2), and water vapor.
Replacement Parts
The emissions control systems are
designed and certified to work
together in reducing emissions to
levels that comply with the Clean Air
Act. To make sure the emissions
remain low, you should use only new
Honda replacement parts or their
equivalent for repairs. Using lower
quality parts may increase the
emissions from your vehicle.
The emissions control systems are
covered by warranties separate from
the rest of your vehicle. Read your
warranty manual for moreinformation.
Emissions Controls
327
Technical Information
Table of Contents