2021 HYUNDAI ELANTRA engine coolant

Emergency Situations
8-6
If your temperature gauge indicates
overheating, you experience a loss of
power, or hear loud pinging or knocking,
the engine may be overheating. If this
happens, you should:
1.
Pull off the r
oad and stop as soon as it
is safe to do so.
2.
Put the vehicle in P (P

ark), and set the
parking brake. If the air conditioning is
ON, turn it OFF.
3.
If engine coolant is running out under
the v

ehicle or steam is coming out
from the hood, stop the engine. Do
not open the hood until the coolant
has stopped running or the steaming
has stopped. If there is no visible
loss of engine coolant and no steam,
leave the engine running and check
to be sure the engine cooling fan is
operating. If the fan is not running,
turn the engine off.
WARNING
While the engine is running,
keep hands, clothing and tools
away from the moving parts
such as the cooling fan and
drive belt to prevent serious
injury. 4.
Check to see if the w

ater pump drive
belt is missing.
(1)
If it is not missing, check t
o see that
it is tight.
(2)
If the drive belt seems t
o be
satisfactory, check for coolant leaking
from the radiator, hoses or under
the vehicle. (If the air conditioning
had been in use, it is normal for cold
water to be draining from it when you
stop.)
5.
If the wa
ter pump drive belt is
broken or engine coolant is leaking
out, stop the engine immediately
and we recommend that you call
an authorized HYUNDAI dealer for
assistance.
WARNING
NEVER remove the radiator
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 engine off and wait until the
engine cools down. Use extreme care
when removing the radiator cap. Wrap
a thick towel around it, and turn it
counterclockwise slowly to the first
stop. Step back while the pressure is
released from the cooling system. When
you are sure all the pressure has been
released, press down on the cap, using
a thick towel, and continue turning
counterclockwise to remove it.
If the engIne overheats

08
8 -7
6. If you cannot find the cause of the
overheating, wait until the engine
temperature has returned to normal.
Then, if coolant has been lost,
carefully add coolant to the reservoir
to bring the fluid level in the reservoir
up to the halfway mark.
7.
Proceed with caution, k

eeping alert
for further signs of overheating.
If overheating happens again,
we recommend that you call an
authorized HYUNDAI dealer for
assistance.NOTICE
• Serious loss of coolant indicates a
leak in the cooling system and we
recommend the system be checked
by an authorized HYUNDAI dealer.
• When the engine overheats from
low engine coolant, suddenly adding
engine coolant may cause cracks
in the engine. To prevent damage,
add engine coolant slowly in small
quantities.

Engine Compartment ........................................................................\
............9-3
Main tenance Services
........................................................................\
........... 9-4
Owner’s Responsibility ........................................................................\
.................... 9-4
Owner Maint enance Precautions ........................................................................\
.... 9-4
Owner Maintenance ........................................................................\
.............. 9-5Owner Maintenance Schedule ........................................................................\
........9-5
Scheduled Maintenance Services ................................................................9 -7Normal Maintenance Schedule (Smartstream G2.0 Atkinson) .............................9-8
Maint enance Under Severe Usage Conditions ..................................................... 9-
11
Explanation of Scheduled Maintenance Items ...........................................9-13
E ngine Oil
........................................................................\
.............................. 9-

15
Checking the Engine Oil Level ........................................................................\
........9-15
Checking the E ngine Oil and Filter ........................................................................\
9-
15
Engine Coolant ........................................................................\
.....................9-16Checking the Engine Coolant Level .......................................................................9- 16
Changing Engine Coolant ........................................................................\
............... 9-
17
Brake fluid ........................................................................\
............................9-18Checking the brake fluid level ........................................................................\
........9-18
Washer Fluid ........................................................................\
......................... 9-19Checking the Washer Fluid Level ........................................................................\
...9-19
Parking brake ........................................................................\
....................... 9-19Checking the parking brake ........................................................................\
...........9-19
Air cleaner ........................................................................\
............................ 9-20Filter replacement ........................................................................\
..........................9-20
CABIN Air Filter ........................................................................\
.....................9-21
Filt er Inspection
........................................................................\
.................... 9-

21
Filter replacement ........................................................................\
...........................9-21
Wiper Blades ........................................................................\
........................9-22Blade Inspection ........................................................................\
............................ 9-22
Blade R eplacement ........................................................................\
........................ 9-
22
Battery ........................................................................\
..................................9-2 4
For Best Battery Service ........................................................................\
................9-25
Ba ttery capacity label ........................................................................\
.................... 9-
25
Battery Recharging
........................................................................\
........................ 9-

26
Reset items
........................................................................\
..................................... 9-

26
Maintenance
9. Maintenance
9

9-3
09
Tires and Wheels ........................................................................\
..................9-27Tire Care ........................................................................\
.......................................... 9-27
Recommended Cold Tire Inflation Pressures ....................................................... 9-27
Check Tire Inflation Pressure ........................................................................\
......... 9-28
Tire Rotation ........................................................................\
................................... 9-29
Wheel Alignment and Tire Balance ....................................................................... 9-30
Tire Replacement ........................................................................\
........................... 9-30
Wheel Replacement ........................................................................\
....................... 9-32
Tire Traction ........................................................................\
.................................... 9-32
Tire Maintenance........................................................................\
............................ 9-32
Tire Sidewall Labeling ........................................................................\
.................... 9-32
Tire Terminology and Definitions ........................................................................\
.. 9-35
All Season Tires ........................................................................\
............................... 9-38
Summer Tires ........................................................................\
................................. 9-38
Snow Tires........................................................................\
....................................... 9-38
Radial-Ply Tires ........................................................................\
............................... 9-38
Low Aspect Ratio Tires ........................................................................\
................... 9-39
Fuses ........................................................................\
....................................9-40Instrument Panel Fuse Replacement ..................................................................... 9-41
Engine Compartment Panel Fuse Replacement .................................................. 9-42
Fuse/Relay Panel Description........................................................................\
........ 9-43
Light Bulbs ........................................................................\
............................ 9-50Headlamp, Parking Lamp, Daytime Running Light, Turn Signal Lamp and
Side Marker ........................................................................\
...................................... 9-51
Side repeater lamp replacement ........................................................................\
.. 9-54
Rear combination lamp bulb replacement .......................................................... 9-54
High mounted stop lamp replacement ................................................................ 9-57
License Plate Light Bulb Replacement ................................................................. 9-57
Interior Light Bulb Replacement ........................................................................\
... 9-58
Appearance Care ........................................................................\
................. 9-59Exterior Care ........................................................................\
................................... 9-59
Interior Care ........................................................................\
.................................... 9-65
Emission Control System ........................................................................\
.... 9-68
California perchlorate notice ....................................................................... 9-71
1. Engine coolant reservoir
2.
Brak
e fluid reservoir
3.
Air cleaner
4.
Engine oil dips

tick
5.
Engine oil filler cap 6.
Windshield washer fluid r
eservoir
7.
Fuse bo

x
8.
Batt

ery
9.
Radiat

or cap
EnginE CompartmEnt
„„Smartstream G2.0
The actual engine compartment in the vehicle may differ from the illustration.OCN7080064L

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.
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 (Smartstream G2.0 Atkinson)
MAINTENANCE INTERVALS
MAINTENANCE
ITEM Months 12 24 36 48 60 72 84 96 108 120 132 144 156
Miles×1,000 8 16 24 32 40 48 56 64 72 80 88 96 104 Km×1,000 13 26 39 52 65 78 91 104 117 130 143 156 169
Engine oil and engine oil filter
*1
R R R R R R R R R R R R R
Fuel additives
*2
Add fuel additives every 8,000 miles (13,000 km) or 12 months
Air cleaner filter I I R I I R I I R I I R I
Air intake hose I I I I I I I I I I I I I
Spark plugs Replace every 96,000 miles
Rotate tires Rotate tires every 8,000 miles (13,000 km)
Cabin air filter R R R R R R
Drive belts
*3
At first, inspect at 48,000 miles (78,000 km) or 72 months.
Thereafter, inspect every 8,000 miles (13,000 km) or 12 months
Vacuum hose I I I I I I I I I I I I I
Engine coolant At first, replace at 120,000 miles or 120 months.
Thereafter, replace every 30,000 miles or 24 months
R: Replace or change.
I : Inspect and if necessary, adjust, correct, clean or replace.*1 : Requires API SN PLUS (or above) grade engine oil. If a lower grade engine oil is used, then the engine oil and engine oil filter
must be replaced at every 5,000 miles (8,000 km) or 6 months as indicated for severe maintenance condition.
*2 : If TOP TIER Detergent Gasoline 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.
*3 : The drive belt should be replaced when cracks occur or tension is reduced excessively.

09
9-13
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.
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