check engine Hyundai Elantra 2020 Service Manual

6-11
What to do in an emergency
6
If any of the below happens, have
the system checked by an author-
ized HYUNDAI dealer.
1. The Low Tire Pressure TPMSMalfunction Indicator does not
illuminate for 3 seconds when
the ignition switch is placed to
the ON position or engine is
running.
2. The TPMS Malfunction Indicator remains illuminated after blink-
ing for approximately 1 minute.
3. The Low Tire Pressure LCD dis- play remains illuminated.
Low Tire Pressure
Telltale
Low Tire Pressure LCD
Display with Position Indicator
When the tire pressure monitoring
system warning indicators are illumi-
nated and the warning message is
displayed on the cluster LCD display,
one or more of your tires is signifi-
cantly under-inflated. The LCD posi-
tion indicator will indicate which tire
is significantly under-inflated by illu-
minating the corresponding position
light. If any of your tire pressures are indi-
cated as being low, immediately
reduce your speed, avoid hard cor-
nering, and anticipate increased
stopping distances. You should stop
and check your tires as soon as pos-
sible. Inflate the tires to the proper
pressure as indicated on the vehi-
cle’s placard or tire inflation pressure
label located on the driver's side cen-
ter pillar outer panel.
If you cannot reach a service station
or if the tire cannot hold the newly
added air, replace the low pressure
tire with the spare tire.
The Low Tire Pressure LCD position
indicator will remain on and the
TPMS Malfunction Indicator may
blink for one minute and then remain
illuminated until you have the low
pressure tire repaired and replaced
on the vehicle.
The spare tire is not equipped with
a tire pressure sensor.
NOTICE
NOTICE
■Supervision cluster
OAD048567L

7
Maintenance
7
Maintenance
Engine Compartment .............................................7-3
Maintenance Services ...........................................7-4
Owner's Responsibility .....................................................7-4
Owner Maintenance Precautions..................................7-4
Owner Maintenance ..............................................7-5
Owner Maintenance Schedule .......................................7-6
Scheduled Maintenance Services........................7-7
Normal Maintenance Schedule (2.0 MPI) ....................7-8
Maintenance Under Severe Usage Conditions
(2.0 MPI) ........................................................................\
....7-11
Normal Maintenance Schedule (1.6 T-GDI) ..............7-13
Maintenance Under Severe Usage Conditions
(1.6 T-GDI) ........................................................................\
7-16
Explanation of Scheduled Maintenance
Items ......................................................................7-\
18
Engine Oil ..............................................................7-21
Checking the Engine Oil Level .....................................7-21
Checking the Engine Oil and Filter .............................7-22
Engine Coolant .....................................................7-23
Checking the Engine Coolant Level ............................7-23
Changing Engine Coolant ..............................................7-26
Brake/Clutch Fluid ...............................................7-27
Checking the Brake/Clutch Fluid Level .....................7-27
Washer Fluid .........................................................7-28
Checking the Washer Fluid Level................................7-28
Parking Brake .......................................................7-28
Checking the Parking Brake .........................................7-28
Air Cleaner ............................................................7-29
Filter Replacement ..........................................................7-29
Climate Control Air Filter ....................................7-31
Filter Inspection ...............................................................7-31
Wiper Blades.........................................................7-33
Blade Inspection ..............................................................7-33
Blade Replacement .........................................................7-33
Battery...................................................................7-35
For Best Battery Service ..............................................7-36
Battery Recharging ........................................................7-36
Reset Features.................................................................7-37
Tires and Wheels .................................................7-38
Tire Care ........................................................................\
....7-38
Recommended Cold Tire Inflation Pressures ...........7-39
Check Tire Inflation Pressure ......................................7-40
Tire Rotation...................................................................\
..7-41
Wheel Alignment and Tire Balance ............................7-42
Tire Replacement ............................................................7-42
Wheel Replacement ........................................................7-43
Tire Traction .....................................................................7-4\
3
7

7-5
7
Maintenance
Improper owner maintenance dur-
ing the warranty period may affect
warranty coverage. For details,
read the separate Owner's
Handbook & Warranty Information
booklet provided with the vehicle.
If you're unsure about any service
or maintenance procedure, have it
done by an authorized HYUNDAI
dealer.The following lists are vehicle checks
and inspections that should be per-
formed by the owner or an author-
ized HYUNDAI dealer at the frequen-
cies indicated to help ensure safe,
dependable operation of your vehi-
cle.
Any adverse conditions should be
brought to the attention of your deal-
er as soon as possible.
These Owner Maintenance vehicle
checks are generally not covered by
warranties and you may be charged
for labor, parts and lubricants used.
NOTICE
Performing maintenance work
on a vehicle can be dangerous.
If you lack sufficient knowledge
and experience or the proper
tools and equipment to do the
work, have it done by an author-
ized HYUNDAI dealer.
ALWAYS follow these precau-
tions for performing mainte-
nance work:
•Park your vehicle on level
ground, move the shift lever
into the P (Park, for Intelligent
Variable Transmission (IVT)/
dual clutch transmission vehi-
cle) position or neutral (for
manual transmission vehicle),
apply the parking brake, place
the ignition switch in the
LOCK/OFF position.
Block the tires (front and
back) to prevent the vehicle
from moving.
Remove loose clothing or jew-
elry that can become entan-
gled in moving parts.
If you must run the engine
during maintenance, do so
out doors or in an area with
plenty of ventilation.
Keep flames, sparks, or smok-
ing materials away from the
battery and fuel-related parts.
WARNING
O O
W
W N
NE
ER
R
M
M A
AI
IN
N T
TE
EN
N A
AN
N C
CE
E

7-6
Maintenance
Owner Maintenance Schedule
When you stop for fuel:
Check the engine oil level.
Check coolant level in the enginecoolant reservoir.
Check the windshield washer fluid level.
Check for low or under-inflated tires.
While operating your vehicle:
Note any changes in the sound ofthe 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 traveling on smooth, level
road.
When stopping, listen and check for unusual sounds, pulling to one
side, increased brake pedal travel
or "hard-to-push" brake pedal.
If any slipping or changes in the operation of your transmission
occurs, check the transmission
fluid level.
Check the 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).
At least monthly:
Check coolant level in the enginecoolant reservoir.
Check the operation of all exterior lights, including the brake lights,
turn signals and hazard warning
flashers.
Check the inflation pressures of all tires including the spare for tires
that are worn, show uneven wear,
or are damaged.
Check for loose wheel lug nuts.
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

7-18
Maintenance
E
EX
X P
PL
LA
A N
N A
AT
TI
IO
O N
N
O
O F
F
S
S C
C H
H E
ED
D U
U L
LE
E D
D
M
M A
AI
IN
N T
TE
EN
N A
AN
N C
CE
E
I
IT
T E
EM
M S
S
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 peri-
odically for proper tension and
adjusted as necessary.
Fuel Filter
A clogged-up fuel filter may limit the
vehicle driving speed, damage the
emission system, and cause the
hard starting. When a considerable
amount of foreign substances are
accumulated in the fuel tank, the fuel
filter should be replaced. Upon installing a new fuel filter, oper-
ate the engine for several minutes,
and check the connections for any
leakages. Fuel filters should be
installed by an authorized HYUNDAI
dealer.
Fuel Lines, Fuel Hoses and
Connections
Check the fuel lines, fuel hoses and
connections for leakage and dam-
age. Have an authorized HYUNDAI
dealer replace any damaged or leak-
ing parts immediately.
Vapor Hose and Fuel Filler
Cap
The vapor hose and fuel filler cap
should be inspected at those inter-
vals specified in the maintenance
schedule. Make sure a new vapor
hose or fuel filler cap is correctly
replaced.
Vacuum Crankcase Ventilation
Hoses (if equipped)
Inspect the surface of hoses for evi-
dence of heat and/or mechanical
damage. Hard and brittle rubber,
cracking, tears, cuts, abrasions, and
excessive swelling indicate deterio-
ration. Particular attention should be
paid to examine those hose surfaces
nearest to high heat sources, such
as the exhaust manifold.
Inspect the hose routing to assure
that the hoses do not come in con-
tact with any heat source, sharp
edges or moving component which
might cause heat damage or
mechanical wear.
Inspect all hose connections, such
as clamps and couplings, to make
sure they are secure, and that no
leaks are present. Hoses should be
replaced immediately if there is any
evidence of deterioration or damage.

Air Cleaner Filter
A genuine HYUNDAI air cleaner filter
is recommended when the filter is
replaced.
Spark Plugs
Make sure to install new spark plugs
of the correct heat range.
Cooling System
Check cooling system components,
such as radiator, coolant reservoir,
hoses and connections for leakage
and damage. Replace any damaged
parts.
Engine Coolant
The coolant should be changed at
the intervals specified in the mainte-
nance schedule.
Intelligent Variable
Transmission (IVT) Fluid
(if equipped)
Intelligent Variable Transmission
(IVT) fluid should not be checked
under normal usage conditions. But
in severe conditions, the fluid should
be changed at an authorized
HYUNDAI dealer in accordance to
the scheduled maintenance at the
beginning of this chapter.
Intelligent Variable Transmission
(IVT) fluid color is basically light
amber.
As the vehicle is driven, the
Intelligent Variable Transmission
(IVT) fluid will begin to look dark-
er. This is a normal condition and
you should not judge the need to
replace the fluid based upon the
changed color.The use of a non-specified fluid
could result in transmission mal-
function and failure. Use only the
specified fluid (refer to
"Recommended Lubricants and
Capacities" in chapter 8).
NOTICE
NOTICE
7-19
7
Maintenance

7-20
Maintenance
Dual Clutch Transmission
Fluid (if equipped)
Inspect the dual clutch transmission
fluid according to the maintenance
schedule.
Manual Transmission Fluid
(if equipped)
Inspect the manual transmission
fluid according to the maintenance
schedule.
Brake Hoses and Lines
Visually check for proper installation,
chafing, cracks, deterioration and
any leakage. Replace any deteriorat-
ed or damaged parts immediately.
Brake/Clutch Fluid
Check brake/clutch fluid level in the
brake/clutch fluid reservoir. The level
should be between the MIN and the
MAX marks on the side of the reser-
voir. Use only hydraulic brake/clutch
fluid conforming to DOT 3 or DOT 4
specification.
Parking Brake
Inspect the parking brake system
including the parking brake pedal
and cables.
Brake Discs, Pads, Calipers
and Rotors
Check the pads for excessive wear,
discs for run out and wear, and
calipers for fluid leakage.
Exhaust Pipe and Muffler
Visually inspect the exhaust pipes,
muffler and hangers for cracks, dete-
rioration, or damage. Start the
engine and listen carefully for any
exhaust gas leakage. Tighten con-
nections or replace parts as neces-
sary.
Suspension Mounting Bolts
Check the suspension connections
for looseness or damage. Retighten
to the specified torque.
Steering Gear Box, Linkage &
Boots/Lower Arm Ball Joint
With the vehicle stopped and the
engine off, check for excessive free-
play in the steering wheel. Check the
linkage for bends or damage. Check
the dust boots and ball joints for
deterioration, cracks, or damage.
Replace any damaged parts.
Drive Shafts and Boots
Check the drive shafts, boots and
clamps for cracks, deterioration, or
damage. Replace any damaged
parts and, if necessary, repack the
grease.
Air Conditioning Refrigerant
Check the air conditioning lines and
connections for leakage and dam-
age.

7-21
7
Maintenance
E
EN
N G
GI
IN
N E
E
O
O I
IL
L
Checking the Engine Oil Level
1. Follow all of the oil manufacturer’s
precautions.
2. Be sure the vehicle is on the level ground in P (Park) with the park-
ing brake set. If possible, block the
wheels.
3. Turn the engine on and allow the engine to reach normal operating
temperature.
4. Turn the engine off and wait about five minutes for the oil to return to
the oil pan.
5. Pull the dipstick out, wipe it clean, and re-insert it fully.
6. Pull the dipstick out again andcheck the level. The level should
be between F and L.
7. If it is near or at L, add enough oil to bring the level to F. To prevent damage to your
engine:
Do not overfill with engine oil.
Add oil in small quantities and
recheck level to ensure engine
is not overfilled.
Do not spill engine oil when adding or changing engine oil.
Use a funnel to help prevent oil
from being spilled on engine
components. Wipe off spilled oil
immediately.
NOTICE
OAD076121
■ 1.6 T-GDI
OAD075062L
■2.0 MPI

7-22
Maintenance
Use only the specified engine oil
(refer to "Recommended
Lubricants and Capacities" in
chapter 8).
Checking the Engine Oil and
Filter
Have engine oil and filter changed by
an authorized HYUNDAI dealer
according to the Maintenance
Schedule at the beginning of this
chapter.
NOTICE
CALIFORNIA PROPOSITION 65
WARNING
Engine oil contains chemicals
known to the State of California
to cause cancer, birth defects
and reproductive harm. Used
engine oil may cause irritation
or cancer of the skin if left in
contact with the skin for pro-
longed periods of time. Always
protect your skin by washing
your hands thoroughly with
soap and warm water as soon
as possible after handling used
oil.
WARNING
OAD076122
■ 1.6 T-GDI
OAD075063L
■2.0 MPI

7-23
7
Maintenance
E
EN
N G
GI
IN
N E
E
C
C O
O O
OL
LA
A N
N T
T
The high-pressure cooling system
has a reservoir filled with year-round
antifreeze coolant. The reservoir is
filled at the factory.
Check the antifreeze protection and
coolant level at least once a year, at
the beginning of the winter season
and before traveling to a colder cli-
mate.Checking the Engine Coolant
Level
Check the condition and connections
of all cooling system hoses and
heater hoses. Replace any swollen
or deteriorated hoses. The coolant level should be filled
between the F and the L marks on
the side of the coolant reservoir
when the engine is cool.
If the coolant level is low, add enough
distilled (deionized) water to bring
the level to the F mark, but do not
overfill. If frequent additions are
required, we recommend that you
see an authorized HYUNDAI dealer
for a cooling system inspection.
Recommended engine coolant
When adding coolant, use only dis-
tilled (deionized) water for your
vehicle and never mix hard water in
the coolant filled at the factory.
An improper coolant mixture can result in severe malfunction or
engine damage.
The engine in your vehicle has alu- minum engine parts and must be
protected by an ethylene-glycol
with phosphate based coolant to
prevent corrosion and freezing.
Do not use alcohol or methanol coolant or mix them with the spec-
ified coolant.OAD078125
■ 1.6 T-GDI
OAD075008
■2.0 MPI