stop start HYUNDAI I20 2020 Service Manual

9-3
09
If you have a flat tire while
driving
If a tire goes flat while you are driving:
• Take your foot off the accelerator
pedal and let the vehicle slow down
while driving straight ahead. Do not
apply the brakes immediately or
attempt to pull off the road as this
may cause loss of vehicle control
resulting in an accident. When the
vehicle has slowed to such a speed
that it is safe to do so, brake carefully
and pull off the road. Drive off the
road as far as possible and park on
firm, level ground. If you are on a
divided highway, do not park in the
median area between the two traffic
lanes.
• When the vehicle is stopped, press
the hazard warning flasher button,
move the shift lever into N (Neutral,
for Automated manual transmission)
or neutral (for manual transmission
vehicle), apply the parking brake, and
place the ignition switch in the LOCK/
OFF position.
• Have all passengers get out of the
vehicle. Be sure they all get out on the
side of the vehicle that is away from
traffic.
• When changing a flat tire, follow the
instructions provided later in this
chapter.
IF THE ENGINE WILL NOT
START
If the engine doesn’t turn over
or turns over slowly
• Be sure the for Automated manual
transmission or N (Neutral) if it is a
vehicle. The engine starts only when
the shift lever is in N (Neutral).
• Check the battery connections to be
sure they are clean and tight.
• Turn on the interior light. If the light
dims or goes out when you operate
the starter, the battery is drained.
Do not push or pull the vehicle to start
it. This could cause damage to your
vehicle.
See instructions for “Jump Starting”
provided in this chapter.
WARNING
Push or pull starting the vehicle may
cause the catalytic converter to
overload which can lead to damage to
the emission control system.
If the engine turns over normally
but doesn’t start
• Check the fuel level and add fuel if
necessary.
If the engine still does not start, we
recommend that you call an authorized
HYUNDAI dealer for assistance.

9-10
Emergency situations
Tire pressure monitoring system
WARNING
Over-inflation or under-inflation can
reduce tire life, adversely affect vehicle
handling, and lead to sudden tire
failure that may cause loss of vehicle
control resulting in an accident.
Each tire, including the spare (if
provided), should be checked monthly
when cold and inflated to the inflation
pressure recommended by the vehicle
manufacturer on the vehicle placard
or tire inflation pressure label. (If your
vehicle has tires of a different size
than the size indicated on the vehicle
placard or tire inflation pressure label,
you should determine the proper tire
inflation pressure for those tires.)
As an added safety feature, your
vehicle has been equipped with a tire
pressure monitoring system (TPMS)
that illuminates a low tire pressure
telltale when one or more of your tires is
significantly under-inflated.
Accordingly, when the low tire pressure
telltale illuminates, you should stop and
check your tires as soon as possible,
and inflate them to the proper pressure.
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.
Please note that the TPMS is not a
substitute for proper tire maintenance,
and it is the driver’s responsibility to
maintain correct tire pressure, even if
under-inflation has not reached the level
to trigger illumination of the TPMS low
tire pressure telltale.Your vehicle has also been equipped
with a TPMS malfunction indicator
to indicate when the system is
not operating properly. The TPMS
malfunction indicator is combined with
the low tire pressure telltale. When
the system detects a malfunction, the
telltale will flash for approximately one
minute and then remain continuously
illuminated. This sequence will continue
upon subsequent vehicle start-ups as
long as the malfunction exists. When
the malfunction indicator is illuminated,
the system may not be able to detect
or signal low tire pressure as intended.
TPMS malfunctions may occur for
a variety of reasons, including the
installation of replacement or alternate
tires or wheels on the vehicle that
prevent the TPMS from functioning
properly. Always check the TPMS
malfunction telltale after replacing
one or more tires or wheels on your
vehicle to ensure that the replacement
or alternate tires and wheels allow the
TPMS to continue to function properly.
i Information
If the TPMS indicator does not illuminate
for 3 seconds when the ignition switch
is turned to the ON position or engine
is running, or if it comes on after
blinking for approximately one minute,
we recommend that you contact an
authorized HYUNDAI dealer.

10-24
Maintenance
Engine oil and filter
The engine oil and filter should be
changed at the intervals specified in
the maintenance schedule. If the car
is being driven in severe conditions,
more frequent oil and filter changes are
required.
Drive belts
Inspect all drive belts for evidence
of cuts, cracks, excessive wear or oil
saturation and replace if necessary.
Drive belts should be checked
periodically for proper tension and
adjusted as necessary.
NOTICE
When you are inspecting the belt, place
the ignition switch in the LOCK/OFF or
ACC position.
Fuel filter
A clogged filter can limit the speed
at which the vehicle may be driven,
damage the emission system and cause
multiple issues such as hard starting.
If an excessive amount of foreign
matter accumulates in the fuel tank, the
filter may require replacement more
frequently.
After installing a new filter, run the
engine for several minutes, and check
for leaks at the connections.
We recommend that the fuel filter be
replaced by an authoized HYUNDAI
dealer.
Fuel lines, fuel hoses and
connections
Check the fuel lines, fuel hoses and
connections for leakage and damage.
We recommend that the fuel lines, fuel
hoses and connections be replaced by
an authoized HYUNDAI dealer.
WARNING
Diesel Engine
Never manipulate or modify the
injection system while running the
diesel engine or within 30 seconds
after turning OFF the diesel engine. The
high-pressure pump, high-pressure
pipes, rail, and injectors are still subject
to high pressure immediately after
stopping the diesel engine.
When the fuel leakage vents out, it
may cause serious body injury. Any
people, who are implanted with the
artificial cardiac pacemaker, should
remain away from the ECU or the
wiring harness by at least 30 cm,
while running the diesel engine. The
high currents of the electronic engine
control system produce a considerable
amount of magnetic fields.
Vapor hose and fuel filler cap
The vapor hose and fuel filler cap should
be inspected at those intervals specified
in the maintenance schedule. Make sure
that a new vapor hose or fuel filler cap is
correctly replaced.
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS

10-68
Maintenance
Fuse NameSymbolFuse
ratingCircuit Protected
A/C 37.5A MTC,FATC,ECU
DOOR LOCK
20A DOOR ACTUATOR
MODULE 5
10AAT_LEVER_IND, HLLD, ‘SEAT_EXTN_DRV, ‘AUDIO, AMP,
‘MTC/FATC, ECM_MIRR, ‘WIRELESS CHARGER
ABS 3
10A ABS (ANTI-LOCK BRAKE SYSTEM)
BRAKE
SWITCH
7.5A STOP SWITCH
START1
7.5A START RLY
CLUSTER
10A CLUSTER
MODULE 4
10A C_PAD_SW(ESC SW)
IBU 2
15A IBU (INTEGRATED BODY CONTROL UNIT)
ACC 1
10AAMP, O_S_MIRR_SW, AUDIO/AVN, IBU(BCM), VDMS,
REAR USB, USB_CHARGER
MODULE 7
10A MULTI FUNCTION SWITCH
WASHER
15A M/F (WASHER PWR)
MODULE 6
7.5A IBU
Inner Compartment Fuse Panel (ICU)

10-99
10
3. Exhaust emission control
system
The Exhaust Emission Control System is
a highly effective system which controls
exhaust emissions while maintaining
good vehicle performance.
Vehicle modifications
• This vehicle should not be modified.
Modification of your vehicle could
affect its performance, safety or
durability and may even violate
governmental safety and emissions
regulations.
In addition, damage or performance
problems resulting from any
modification may not be covered
under warranty.
• If you use unauthorized electronic
devices, it may cause the vehicle to
operate abnormally, wire damage,
battery discharge and fire. For your
safety, do not use unauthorized
electronic devices.
Engine exhaust gas precautions
(carbon monoxide)
• Carbon monoxide can be present with
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
Exhaust
Engine exhaust gases contain carbon
monoxide (CO). Though colorless
and odorless, it is dangerous and
could be lethal if inhaled. Follow the
instructions on this page to avoid CO
poisoning.
• Do not operate the engine in confined
or closed areas (such as garages) any
more than what is necessary to move
the vehicle in or out of the area.
• When the vehicle is stopped in an
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.
• Never sit in a parked or stopped
vehicle for any extended time with the
engine running.
• When the engine stalls or fails to
start, excessive attempts to restart
the engine may cause damage to the
emission control system.

10-104
Maintenance
OSU2I089042OSU2I089042
If the system still needs the self
regeneration process after cancelling
the operation, the warning message
appears. (Diesel filter regeneration
required.)
If the driver press the OK button firmly,
it can restart the self regeneration mode
again. (The Self regeneration conditions
should be satisfied.)
OSU2I089041OSU2I089041
The self regeneration process stops if
any of the self regeneration conditions
is cancelled. If the self regeneration
process is cancelled automatically, the
system maintains “Self-regeneration
stopped” message.
If the driver press the OK button firmly,
it can restart the self regeneration mode
again. (Self regeneration conditions
should be satisfied.)
Segment Type
Regeneration
The self regeneration procedure is
conducted as follows.
1) Repeat key position at LOCK (or
ACC)  ON state 5 times (within 30
seconds)
2) Start engine
3) Monitor engine state
: Within 20 seconds, engine RPM rise
to about 2000 & DPF indicator blinks
and it continues for 30~60 minutes.
After the end of regeneration, engine
RPM drop to idle & DPF indicator
turn out automatically.
4) Stop the engine (Key Off), wait for 20
seconds and restart the engine
5) Check malfunction indicator turn out
CAUTION
Under below condition, Diesel
Catalyst regeneration process may be
interrupted. (Engine RPM drops to idle
state)
• Engine overheat or insufficient
warm-up
• Shift lever change to D or R state
• Acceleration pedal is pressed
• Movement of Vehicle (Vehicle speed
over 0)