2021-2026 Hyundai I20 4 Door Maintenance -> Exhaust emission control system User Manual
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Maintenance -> Exhaust emission control system for Your Hyundai I20 4 Door Third Generation (2021-2026)

09  
Operating precautions for catalytic  
converters (if equipped)  
3. Exhaust emission control  
system  
The Exhaust Emission Control System is  
a highly effective system which controls  
exhaust emissions whilst maintaining  
good vehicle performance.  
WARNING  
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flammable items under your vehicle.  
Do not park, idle, or drive the vehicle  
over or near flammable objects, such  
as dry grass, paper, leaves, etc.  
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system are very hot whilst the engine  
is running or immediately after the  
engine is turned off. Keep away from  
the exhaust system and catalytic  
converter as you may get burned.  
Also, do not remove the heat sink  
around the exhaust system, do not  
seal the bottom of the vehicle and  
do not coat the vehicle for corrosion  
control. It may present a fire risk  
under certain conditions.  
Engine exhaust gas precautions  
(carbon monoxide)  
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other exhaust fumes. Therefore, if  
you smell exhaust fumes of any kind  
inside your vehicle, have it inspected  
and repaired immediately. If you ever  
suspect exhaust fumes are coming  
into your vehicle, drive it only with  
all the windows fully open. Have  
your vehicle checked and repaired  
immediately.  
WARNING  
Engine exhaust gases contain carbon  
monoxide (CO). Though colourless and  
odourless, it is dangerous and could be  
lethal if inhaled. Follow the instructions  
following to avoid CO poisoning.  
Your vehicle is equipped with a catalytic  
converter emission control device.  
Therefore, the following precautions  
must be observed:  
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engines.  
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or closed areas (such as garages) any  
more than what is necessary to move  
the vehicle in or out of the area.  
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open area for more than a short time  
with the engine running, adjust the  
ventilation system (as needed) to draw  
outside air into the vehicle.  
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there are signs of engine malfunction,  
such as misfire or a noticeable loss of  
performance.  
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Examples of misuse are coasting with  
the engine off and descending steep  
grades in gear with the engine off.  
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speed for extended periods (5 minutes  
or more).  
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vehicle for any extended time with the  
engine running.  
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part of the engine or emission control  
system. We recommend that all  
inspections and adjustments are  
made by a HYUNDAI authorised  
repairer.  
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start, excessive attempts to restart  
the engine may cause damage to the  
emission control system.  
9-89  
Maintenance  
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level. If you run out of petrol, it could  
cause the engine to misfire and result  
in excessive loading of 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.  
When the GPF lamp starts to blink or  
the waning message “Check exhaust  
system” pops up even though the  
vehicle was driven as mentioned above,  
we recommend that you have the  
GPF system checked by a HYUNDAI  
authorised repairer.  
With the GPF lamp blinking for an  
extended period of time, it may damage  
the GPF system and lower the fuel  
economy.  
Petrol Particulate Filter (GPF)  
(if equipped)  
The Petrol Particulate Filter (GPF) system  
removes the soot in the exhaust gas.  
WARNING  
Petrol Fuel  
(if equipped with GPF)  
The GPF system automatically burns  
(or oxidizes) the accumulated soot in  
accordance with driving situations,  
unlike a disposable air filter.  
In other words, the accumulated soot is  
automatically purged out by the engine  
control system and by the high exhaust-  
gas temperature at normal/ high driving  
speeds.  
We recommend you to use only the  
regulated petrol fuels, when your  
vehicle is equipped with the GPF  
system.  
When you use other petrol fuels which  
contain unspecified additives, they  
may damage the GPF system and cause  
exhaust emission problems.  
However, when the vehicle is continually  
driven at repeated short distances or  
driven at low speed for a long time,  
the accumulated soot may not be  
automatically removed because of low  
exhaust gas temperature. In this case,  
the accumulated soot may reach a  
certain amount regardless of the soot  
oxidization process, then the GPF lamp  
will illuminate.  
The Petrol Particulate Filter (GPF) Lamp  
stops illuminating, when the driving  
speed exceeds 80 km/h (50 mph) with  
the engine at 1,500- 4,000 rpm and the  
gear in the 3rd position or above for  
approximately 30 minutes.  
9-90  

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