oil pressure Hyundai Tucson 2020 Owner's Manual - RHD (UK, Australia)

3-96
Convenient features of your vehicle
Charging System
Warning Light
This warning light illuminates:
Once you set the ignition switch or
the Engine Start/Stop button to the
ON position.
- It remains on until the engine is
started.
When there is a malfunction with
either the alternator or electrical
charging system.
If there is a malfunction with either
the alternator or electrical charging
system:
1. Drive carefully to the nearest safe
location and stop your vehicle.
2. Turn the engine off and check the
alternator drive belt for looseness
or breakage.
If the belt is adjusted properly,
there may be a problem in the
electrical charging system.
In this case, we recommend that
you have the vehicle inspected by
an authorised HYUNDAI dealer as
soon as possible.
Engine Oil Pressure
Warning Light
This warning light illuminates:
Once you set the ignition switch or
the Engine Start/Stop button to the
ON position.
- It remains on until the engine is
started.
When the engine oil pressure is
low.
If the engine oil pressure is low:
1. Drive carefully to the nearest safe
location and stop your vehicle.
2. Turn the engine off and check the
engine oil level (For more details,
refer to “Engine Oil” in chapter
7). If the level is low, add oil as
required.
If the warning light remains on
after adding oil or if oil is not avail-
able, we recommend that you
have the vehicle inspected by an
authorised HYUNDAI dealer as
soon as possible.

3-97
Convenient features of your vehicle
3
- Engine Oil Pressure
Warning Light
If the engine does not stop
immediately after the Engine Oil
Pressure Warning Light is illumi-
nated, severe damage could
result.
If the warning light stays on
whilst the engine is running, it
indicates that there may be seri-
ous engine damage or malfunc-
tion. In this case,
1. Stop the vehicle as soon as it
is safe to do so.
2. Turn off the engine and check
the oil level. If the oil level is
low, fill the engine oil to the
proper level.
3. Start the engine again. If the
warning light stays on after
the engine is started, turn the
engine off immediately. In this
case, we recommend that you
have the vehicle inspected by
an authorised HYUNDAI deal-
er.Low Fuel Level
Warning Light
This warning light illuminates:
When the fuel tank is nearly empty.
If the fuel tank is nearly empty:
Add fuel as soon as possible.
- Low Fuel Level
Driving with the Low Fuel Level
warning light on or with the fuel
level below “0 or E” can cause the
engine to misfire and damage the
catalytic converter (if equipped).
Overspeed Warning
Light (if equipped)
This warning light blinks:
When you drive the vehicle over
120 km/h.
- This is to prevent you from driving
your vehicle with overspeed.
- The overspeed warning chime
also sounds for approximately 5
seconds.
NOTICE
NOTICE120km/h

3-151
Convenient features of your vehicle
3
The symbols and specifications on
the air conditioning refrigerant label
describe the:
1. Classification of refrigerant
2. Amount of refrigerant
3. Classification of Compressor lubri-
cant
You can find out which air condition-
ing refrigerant is applied to your vehi-
cle on the label located inside of the
bonnet. Refer to chapter 8 for the
location of the air conditioning refrig-
erant label.Checking the amount of air
conditioner refrigerant and
compressor lubricant
When the amount of refrigerant is
low, the performance of the air con-
ditioning is reduced. Overfilling also
reduces the performance of the air
conditioning system.
Therefore, if abnormal operation is
found, we recommend that the sys-
tem be inspected by an authorised
HYUNDAI dealer.
We recommend the air conditioning
system be serviced by an authorised
HYUNDAI dealer. Vehicles equipped with R-134a
Because the refriger-
ant is at very high
pressure, the air con-
ditioning system
should only be serv-
iced by trained and certified
technicians. It is important that
the correct type and amount of
oil and refrigerant are used.
Otherwise, it may cause dam-
age to the vehicle and personal
injury.
WARNING
Vehicles equipped with
R-1234yf
Because the refriger-
ant is mildly inflam-
mable at very high
pressure, the air con-
ditioning system
should only be serv-
iced by trained and
certified technicians.
It is important that the
correct type and amount of oil
and refrigerant are used.
Otherwise, it may cause dam-
age to the vehicle and personal
injury.
WARNING

3-165
Convenient features of your vehicle
Checking the amount of air
conditioner refrigerant and
compressor lubricant
When the amount of refrigerant is
low, the performance of the air con-
ditioning is reduced. Overfilling also
reduces the performance of the air
conditioning system.
Therefore, if abnormal operation is
found, we recommend that the sys-
tem be inspected by an authorised
HYUNDAI dealer.
We recommend the air conditioning
system be serviced by an authorised
HYUNDAI dealer.
3
Vehicles equipped with R-134a
Because the refriger-
ant is at very high
pressure, the air con-
ditioning system
should only be serv-
iced by trained and certified
technicians. It is important that
the correct type and amount of
oil and refrigerant are used.
Otherwise, it may cause dam-
age to the vehicle and personal
injury.
WARNING
Vehicles equipped with
R-1234yf
Because the refriger-
ant is mildly inflam-
mable at very high
pressure, the air con-
ditioning system
should only be serv-
iced by trained and
certified technicians.
It is important that the
correct type and amount of oil
and refrigerant are used.
Otherwise, it may cause dam-
age to the vehicle and personal
injury.
WARNING

5-154
Driving your vehicle
If you believe your brakes may be
wet, apply them lightly whilst driv-
ing until normal braking operation
returns.
Hydroplaning
If the road is wet enough and you are
going fast enough, your vehicle may
have little or no contact with the road
surface and actually ride on the
water. The best advice is SLOW
DOWN when the road is wet.
The risk of hydroplaning increas-
es as the depth of tyre tread
decreases. Refer to "Tyre replace-
ment" in chapter 7.
Driving in flooded areas
Avoid driving through flooded areas
unless you are sure the water is no
higher than the bottom of the wheel
hub. Drive through any water slowly.
Allow adequate stopping distance
because brake performance may be
reduced.
After driving through water, dry the
brakes by gently applying them sev-
eral times whilst the vehicle is mov-
ing slowly.
Highway driving
Tyres
Adjust the tyre inflation, as specified.
Under-inflation may overheat or
damage the tyres.
Do not install worn-out or damaged
tyres, which may reduce traction or
fail the braking operation.
Information
Never over-inflate your tyres above
the maximum inflation pressure, as
specified on your tyres.
Fuel, engine coolant and engine
oil
Driving at a high speed consumes
more fuel than driving at a slow
speed, such as in an urban area. Do
not forget to check both the engine
coolant and engine oil.
Drive belt
A loose or damaged drive belt may
overheat the engine.
i

7-7
7
Maintenance
Owner maintenance schedule
When you stop for fuel:
Check the engine oil level.
Check coolant level in the engine
coolant reservoir.
Check the windscreen washer fluid
level.
Check for low or under-inflated
tyres.
Whilst operating your vehicle:
Note any changes in the sound of
the exhaust or any smell of
exhaust fumes in the vehicle.
Check for vibrations in the steering
wheel. Notice if there is any
increased steering effort or loose-
ness in the steering wheel, or
change in its straight-ahead posi-
tion.
Notice if your vehicle constantly
turns slightly or “pulls” to one side
when travelling on a smooth, level
road.
When stopping, listen and check
for unusual sounds, pulling to one
side, increased brake pedal travel
or a “hard-to-push” brake pedal.
If any slipping or changes in the
operation of your transmission
occurs, check the transmission
fluid level.
Check the automatic transmis-
sion/dual clutch transmission
P (Park) function.
Check the parking brake.
Check for fluid leaks under your
vehicle (water dripping from the air
conditioning system during or after
use is normal). Be careful when checking your
engine coolant level when the
engine is hot. This may result in
coolant being blown out of the
opening and cause serious
burns and other injuries.
WARNING
Diesel Engine
Never manipulate or modify the
injection system whilst running
the diesel engine or within 30
seconds after turning OFF the
diesel engine. The high-pres-
sure pump, high-pressure
pipes, rail, and injectors are still
subject to the high pressure
right after stopping the diesel
engine. When the fuel leakage
vents out, it may cause serious
body injury. Any people, who
are implemented with the artifi-
cial cardiac pacemaker, should
remain away from the ECU or
the wiring harness by at least 30
cm, whilst running the diesel
engine. The high currents of the
electric engine control system
produce a considerable amount
of magnetic fields.
WARNING

7-18
Maintenance
Normal Maintenance Schedule (Petrol Engine [2.0 GDI]) (Cont.)
Months1224364860728496
Km x 1,000153045607590105120
Disc brakes and padsIIIIIIII
Steering gear rack, linkage and bootsIIIIIIII
Driveshaft and bootsIIII
Tyres (pressure & tread wear)IIIIIIII
Front suspension ball jointsIIIIIIII
Bolt and nuts on chassis and bodyIIIIIIII
Air conditioner refrigerant (if equipped)IIIIIIII
Air conditioner compressor (if equipped)IIIIIIII
Climate control air filter (if equipped)IIIIIIII
Manual transmission fluid *8II
Automatic transmission fluidNo check, No service required
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*
8: Manual transmission fluid, Transfer case oil and Rear differential oil should be changed anytime they have been submerged in
water.
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM

7-27
7
Maintenance
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S
Engine oil and filter
The engine oil and filter should be
changed at the intervals specified in
the maintenance schedule. If the
vehicle is being driven in severe con-
ditions, 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 peri-
odically for proper tension and
adjusted as necessary.
Fuel filter (cartridge)
A clogged-up fuel filter may limit the
vehicle driving speed, damage the
emission system, and cause hard
starting. When a considerable
amount of foreign substances are
accumulate in the fuel tank, the fuel
filter should be replaced.
Upon installing a new fuel filter, oper-
ate the diesel engine for several min-
utes, and check the connections for
any leakages. We recommend that
you have the fuel filter replaced by an
authorised HYUNDAI dealer.
Fuel lines, fuel hoses and con-
nections
Check the fuel lines, fuel hoses and
connections for leakage and dam-
age. We recommend that the fuel
lines, fuel hoses and connections be
replaced by an authorised HYUNDAI
dealer. When you are inspecting the
drive belt, place the ignition
switch to the LOCK/OFF or ACC
position.
CAUTION
Diesel Only
Never manipulate or modify the
injection system whilst running
the diesel engine or within 30
seconds after turning the diesel
engine OFF. The high-pressure
pump, high-pressure pipes, rail,
and injectors are still subject to
the high pressure right after
stopping the diesel engine.
When the fuel leakage vents
out, it may cause serious body
injury. Any people, who are
implemented with the artificial
cardiac pacemaker, should
remain away from the ECU or
the wiring harness by at least 30
cm whilst running the diesel
engine. The high currents of the
common rail system produce a
considerable amount of mag-
netic fields.
WARNING

7-80
Maintenance
Fuse Name SymbolFuse ratingCircuit Protected
FUSE
DCU 3DCU315A Not Used
DCU 2DCU220A Not Used
DCU 1DCU120A Not Used
WIPER 125A [W/O Smart Key] Ignition Switch, [With Smart Key] PDM (IG2) Relay
TCU 115A PCM/ECM/TCM
ECU 320A [G4NA/G4FJ] PCM/ECM
HORN15A Horn Relay
BATTERY
MANAGEMENT10A Not Used
SENSOR 210A
[G4NA] Oil Control Valve #1/#2, Variable Intake Solenoid Valve,
Camshaft Position Sensor #1/#2, Purge Control Solenoid Valve,
E/R Junction Block (RLY. 1, RLY. 3)
[G4FJ] Oil Control Valve #1/#2, Purge Control Solenoid Valve,
RCV Control Solenoid Valve, E/R Junction Block (RLY. 1, RLY. 3)
[D4HA] Crankshaft Position Sensor, EGR Cooling Bypass Solenoid Valve,
Stop Lamp Switch, E/R Junction Block (RLY. 3, RLY. 6)
SENSOR 115A [G4NA/G4FJ] Oxygen Sensor (Up/Down)
[D4HA] Lambda Sensor #1/#2, Electronic VGT Actuator, Fuel Pressure Regulating
Valve, PM (Particulate Matter) Sensor, E/R Junction Block (RLY. 1)

7-95
7
Maintenance
High-pressure washing
When using high-pressure wash-
ers, make sure to maintain suffi-
cient distance from the vehicle.
Insufficient clearance or excessive
pressure can lead to component
damage or water penetration.
Do not spray the camera, sensors
or its surrounding area directly with
a high pressure washer. Shock
applied from high pressure water
may cause the device to not oper-
ate normally.
Do not bring the nozzle tip close to
boots (rubber or plastic covers) or
connectors as they may be dam-
aged if they come into contact with
high pressure water.Matte paint finish vehicle
(if equipped)
Automatic car wash which uses
rotating brushes should not be
used as this can damage the sur-
face of your vehicle. A steam
cleaner which washes the vehicle
surface at high temperature may
result the oil to adhere and leave
stains that is difficult to remove.
Use a soft cloth (e.g. microfiber
towel or sponge) when washing
your vehicle and dry with a
microfiber towel. When you hand
wash your vehicle, you should not
use a cleaner that finishes with
wax. If the vehicle surface is too
dirty (sand, dirt, dust, contami-
nant, etc.), clean the surface with
water before washing the car.
NOTICE
Water washing in the engine
compartment including high
pressure water washing may
cause the failure of electrical
circuits located in the engine
compartment.
Never allow water or other liq-
uids to come in contact with
electrical/electronic compo-
nents inside the vehicle as
this may damage them.
CAUTION
OTL078049