check engine HYUNDAI ELANTRA HYBRID 2021 Repair Manual

Tires and Wheels ........................................................................\
..................9-29Tire Care ........................................................................\
..........................................9-29
Recommended Cold Tire Inflation Pressures .......................................................9-29
Check Tire Inflation Pressure ........................................................................\
.........9-30
Tire Rotation ........................................................................\
....................................9-31
Wheel Alignment and Tire Balance .......................................................................9-32
Tire Replacement ........................................................................\
...........................9-32
Wheel Replacement ........................................................................\
.......................9-34
Tire Traction ........................................................................\
....................................9-34
Tire Maintenance ........................................................................\
............................ 9-34
Tire Sidewall Labeling
........................................................................\
....................9-34
Tire Terminology and Definitions ........................................................................\
..9-37
All Season Tires ........................................................................\
..............................9-40
Summer Tires ........................................................................\
................................9-40
Snow Tires ........................................................................\
...................................... 9-40
Radial-Ply Tires
........................................................................\
..............................9-40
Low Aspect Ratio Tires ........................................................................\
....................9-41
Fuses ........................................................................\
.....................................9-42Instrument Panel Fuse Replacement ....................................................................9-43
Engine Compartment Panel Fuse Replacement ..................................................9-44
Fuse/Relay Panel Description ........................................................................\
........ 9-45
Light Bulbs ........................................................................\
............................9-52Headlamp, Parking Lamp, Daytime Running Light, Turn Signal Lamp and
Side Marker ........................................................................\
.....................................9-53
Side repeater lamp replacement ........................................................................\
..9-56
Rear combination lamp bulb replacement ..........................................................9-56
High mounted stop lamp replacement ................................................................9-59
License Plate Light Bulb Replacement .................................................................9-59
Interior Light Bulb Replacement ........................................................................\
..9-60
Appearance Care ........................................................................\
.................9-61Exterior Care ........................................................................\
...................................9-61
Interior Care ........................................................................\
....................................9-67
Emission Control System ........................................................................\
.....9-70
California perchlorate notice
......................................................................9-739

09
9-5
WARNING
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 authorized
HYUNDAI dealer.
ALWAYS follow these precautions for
performing maintenance work:
• Park your vehicle on level ground,
move the shift button into the P
(Park) position, 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 jewelry
that can become entangled 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 smoking
materials away from the battery and
fuel-related parts. The following lists are vehicle checks and
inspections that should be performed
by the owner or an authorized HYUNDAI
dealer at the frequencies indicated to
help ensure safe, dependable operation
of your vehicle.
Any adverse conditions should be
brought to the attention of your dealer 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.
Owner Maintenance Schedule
When you stop for fuel:
•
Check the engine oil level.
• Check the coolant level in the engine
coolant reservoir.
• Check the windshield washer fluid
level.
• Check the for low or under-inflated
tires.
• Check the radiator and condenser.
• Check if the front of the radiator and
condenser are clean and not blocked
with leaves, dirt or insects etc. If any
of the above parts are extremely dirty
or you are not sure of their condition,
we recommend that you contact an
authorized HYUNDAI dealer.
WARNING
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.
OWNER MAINTENANCE

Maintenance
9-6
While 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 looseness in the
steering wheel, or change in its
straight-ahead position.
• 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 intelligent variable
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 engine
coolant 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.
At least twice a year:
(i.e., every Spring and Autumn)
• Check radiator, heater and air
conditioning hoses for leaks or
damage.
• Check windshield washer spray and
wiper operation. Clean wiper blades
with a clean cloth dampened with
washer a fluid.
• Check headlamp alignment.
• Check muffler, exhaust pipes, shields
and clamps.
• Check the seat belts for wear and
function.
At least once a year:
• Clean body and door drain holes.
• Lubricate door hinges and hood
hinges.
• Lubricate door and hood locks and
latches.
• Lubricate door rubber weather strips.
• Lubricate door checker.
• Check the air conditioning system.
• Inspect and lubricate intelligent
variable transmission linkage and
controls.
• Clean the battery and terminals.
• Check the brake fluid level.

Maintenance
9-8
Normal maintenance schedule The following maintenance services must be performed to ensure good emission control and performance.
Keep receipts for all vehicle emission services to protect your warranty. Where both mileage and time are shown, the frequency of
service is determined by whichever occurs first.
MAINTENANCE

INTERVALS
MAINTENANCE
ITEM Number of months or driving distance, whichever comes first
Months 1224 3648 60 7284 96
Miles×1,000 1020 3040 5060 7080
Km×1,000 1530 4560 7590105 120
Engine oil and engine oil filter
*1
Replace every 7,500 miles (12,000 km) or 12 months
Fuel additives
*2
R RRRRRRR
Air cleaner filter IIR IIR II
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.*1 : Check the engine oil level and leak every 500 km (350 miles) or before starting a long trip.
*2 : If good quality gasolines or equivalents including fuel additives is not available, one bottle of additive is recommended.
Additives are available from your authorized HYUNDAI dealer along with information on how to use them. Do not mix other
additives. ÃAs it is normal for engine oil to be consumed during driving, the amount of engine oil should be checked regularly. ÃThe replacement cycle of engine oil is set by the period which the performance of our recommended engine oil is
maintained. So if recommended engine oil is not used, a replacement is required as indicated severe usage condition.

Maintenance
9-14
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 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.
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, operate
the engine for several minutes, and
check the connections for any leakages.
Fuel filters should be installed by an
authorized HYUNDAI dealer.
HSG (Hybrid Starter & Generator)
Belt
The HSG belt should be changed at the
intervals specified in the maintenance
schedule.
Fuel Lines, Fuel Hoses and
Connections
Check the fuel lines, fuel hoses and
connections for leakage and damage.
Have an authorized HYUNDAI dealer
replace any damaged or leaking parts
immediately.
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
a new vapor hose or fuel filler cap is
correctly replaced.
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.
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS

09
9-15
Engine Coolant/Inverter Coolant
The coolant should be changed at the
intervals specified in the maintenance
schedule.
Dual clutch transmission fluid
Dual clutch transmission fluid should
not be checked under normal usage
conditions.
We recommend that the Intelligent
variable transmission fluid is changed by
an authorized HYUNDAI dealer according
to the maintenance schedule.
Brake Hoses and Lines
Visually check for proper installation,
chafing, cracks, deterioration and any
leakage. Replace any deteriorated or
damaged parts immediately.
Brake Fluid
Check the brake fluid level in the brake
fluid reservoir. The level should be
between the MIN and the MAX marks
on the side of the reservoir. Use only
hydraulic brake fluid conforming to DOT
4 specification..
Brake Discs, Pads, Calipers and
Rotors
Check the pads for excessive wear, discs
for run out and wear, and calipers for
fluid leakage.
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 freeplay 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 damage.

Maintenance
9-16
Checking the Engine Oil Level
Engine oil is used for lubrication and
cooling, so it is gradually consumed
during driving the vehicle.
Regularly check and manage the oil level
using the following procedure.
1. Follow all of the oil manufacturer’s
precautions.
2. Be sure the vehicle is on the level
ground in P (Park) with the parking
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 15
minutes (with oil filler cap and dipstick
detached) for the oil to return to the
oil pan.
5. Pull the dipstick out, wipe it clean, and
re-insert it fully.
OCN7H090003
6. Pull the dipstick out again and check
the level.
OCN7H090004
7. Check if the oil level is between the
F-L line and refill it if the oil level is
near the L line.
Use only the specified engine oil. (refer
to “Recommended Lubricants and
Capacities” in chapter 2).
ENGINE OIL

09
9-17
NOTICE
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.
• The engine oil consumption may
increase while you break in a new
vehicle and it will be stabilized after
driving 6,000 km.
• The engine oil consumption can be
affected by driving habits, climate
conditions, traffic conditions,
oil quality, etc. Therefore, it is
recommended that you inspect the
engine oil level regularly and refill it
if necessary.
• The engine oil change interval is
set for the purpose of preventing
oil deterioration, and is not related
the amount of oil consumption; so,
check and refill the amount of the oil
regularly.
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.
• If exceeding the maintenance
schedule for replacement of engine
oil, the engine oil performance
may deteriorate and the engine
condition may be affected. Therefore,
the replacement cycle should be
observed.
• To keep the engine in optimal
condition, use recommended engine
oil. If not using the recommended
oil, replace it according to the severe
usage maintenance conditions.
WARNING
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 prolonged 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.

Maintenance
9-18
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 climate.
NOTICE
• When the engine overheats by low
level of the engine coolant, suddenly
adding engine coolant may cause
cracks in the engine. To prevent
damage, add engine coolant slowly
in small quantities.
• Do not drive with no engine coolant.
It may cause water pump failure and
engine seizure, etc.
Checking the Coolant Level
OCN7H090005
„„Engine coolant
OCN7H090006
„„Inverter coolant
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 MAX and the MIN marks on
the side of the coolant reservoir when
the engine is cool.
If the coolant level is low, add the
selected anti-freeze according to the
proper coolant mix ratio to bring the level
to the MAX mark, but do not overfill. If
frequent additions are required, see an
authorized HYUNDAI dealer for a cooling
system inspection.
ENGINE COOLANT/INVERTER COOLANT

09
9-19
WARNING
OCN7H090007
„„Engine coolant cap
OCN7H090008
„„Inverter coolant cap
1. Check if the radiator cap label is
straight In front.
2. Make sure that the tiny protrusions
inside the radiator cap should be
securely interlocked.
WARNING
Never remove the engine coolant cap and/or inverter
coolant cap or the drain plug
while the engine and radiator
are hot. Hot coolant and steam
may blow out under pressure,
causing serious injury.
Turn the vehicle off and wait until
the engine cools down. Use extreme
care when removing the engine
coolant cap and/or inverter coolant
cap. Wrap a thick towel around it,
and turn it counterclockwise slowly
while the pressure is released from
the cooling system. When you are sure
all the pressure has been released,
using a thick towel, continue turning
counterclockwise to remove it.
Information
The engine coolant and/or inverter coolant
level is influenced by the hybrid system
temperature. Before checking or refilling
the engine coolant and/or inverter coolant,
turn the hybrid vehicle off.
WARNING
The electric motor for the cooling fan may continue to
operate or start up when the
engine is not running and can
cause serious injury. Keep
hands, clothing and tools away
from the rotating fan blades of
the cooling fan.
Keep hands, clothing and tools away
from the rotating fan blades of the
cooling fan.
Always turn off the vehicle unless the
vehicle has to be inspected with the
engine on. Be cautious as the cooling
fan may operate if the negative (-)
battery terminal is not disconnected.