Kia Rio 2022, Owner'S Manual, Page: 572 / 602

Maintenance
114 8
Emission control system
僅 The exhaust system and catalytic sys
-
tem are very hot whilst the engine is
running or immediately after the
engine is turned off. Keep away from
the exhaust system and catalytic, you
may get burned.
Also, do not remove the heat sink
around the exhaust system, do not
seal the bottom of the vehicle or do
not coat the vehicle for corrosion con
-
trol. It may present a fire risk under
certain conditions.
Your vehicle is equipped with a catalytic
converter emission control device.
Therefore, the following precautions
must be observed:
僅 Make sure to refuel your vehicle
according to the "Fuel requirements"
suggested in chapter 1.
僅 Do not operate the vehicle when there
are signs of engine malfunction, such
as misfire or a noticeable loss of per
-
formance.
僅 Do not misuse or abuse the engine.
Examples of misuse are coasting with
the ignition off and descending steep
grades in gear with the ignition off.
僅 Do not operate the engine at high idle
speed for extended periods (5 min
-
utes or more).
僅 Do not modify or tamper with any
part of the engine or emission control
system. All inspections and adjust
-
ments must be made by a profes
-
sional workshop. Kia recommends to
visit an authorised Kia dealer/service
centre.
僅 Avoid driving with an extremely low
fuel level. Running out of fuel could
cause the engine to misfire, damaging
the catalytic converter.
Failure to observe these precautions
could result in damage to the catalytic
converter and to your vehicle.
Additionally, such actions could void
your warranties.
Petrol Particulate Filter (PPF) (if
equipped)
The Petrol Particulate Filter (PPF) is the
system that removes the soot from the
exhaust gas. Unlike a disposable air fil
-
ter, the PPF system automatically burns
(oxidizes) and removes the accumulated
soot whilst driving.
However, repeated short-distance driv
-
ing or long-distance driving at a low
speed can stop the accumulated soot
from automatically being removed by
the PPF system. If the accumulated soot
reaches a certain amount, the PPF warn
-
ing light ( ) will illuminate. To re-oper
-
ate the PPF system, the vehicle should
be driven for more than 30 minutes at a
speed of 80 km/h (50 mph) and faster.
Ensure the following conditions are met:
safe road conditions, transmission 3 or
above, and engine speed of 1,500-
4,000 rpm. Driving at 80 km/h (50
mph) or faster for recommended hours
will get the PPF system back to work
and stop the PPF warning light.
If the PPF warning light stays on or the
warning message “Check exhaust sys
-
tem” pops up even after driving at rec
-
ommended speed and for
recommended hours, visit a professional
workshop and check the PPF system.
Kia recommends to visit an authorised
Kia dealer/service partner. Constant
driving with the PPF warning light on
can damage the PPF system and under
-
mine fuel economy.