2021 HYUNDAI ELANTRA maintenance

6-38
Battery Sensor Deactivation
OCN7060158N
[A] : Battery sensor
The battery sensor is deactivated, when
the battery is disconnected from the
negative pole for maintenance purpose.
In this case, the ISG system is limitedly
operated due to the battery sensor
deactivation. Thus, the driver needs
to take the following procedures to
reactivate the battery sensor after
disconnecting the battery.
Prerequisites to reactivate the
battery sensor
Switch "ON" and "OFF" the ignition one
time. Park the vehicle for a minimum of 4
hours with the hood and all doors closed.
Pay extreme caution not to connect any
accessories (i.e. navigation and black
box) to the vehicle with the engine in the
OFF status. If not, the battery sensor may
not be reactivated.
Information
The ISG system may not operate in the
following situations.
-There is a malfunction with the ISG
system.
-The battery is weak.
-The brake vacuum pressur

e is low.
If this occurs, have the ISG system
checked by an authorized HYUNDAI
dealer.
NOTICE
• Use only a genuine HYUNDAI
Absorbent Glass Mat (AGM) battery
for replacement. If not, the ISG
system may not operate normally.
• Do not recharge the Absorbent Glass
Mat (AGM) battery with a general
battery charger. It may damage or
explode the Absorbent Glass Mat
(AGM) battery.
• Do not remove the battery cap. The
battery electrolyte, which is harmful
to the human body, may leak out.
While Driving

06
6-47
WARNING
The use of tire chains may adversely
affect vehicle handling:
• Drive less than 20 mph (30 km/h)
or the chain manufacturer's
recommended speed limit,
whichever is lower.
• Drive carefully and avoid bumps,
holes, sharp turns, and other road
hazards, which may cause the
vehicle to bounce.
• Avoid sharp turns or locked wheel
braking.
Information
• Install tire chains on both left and right
front tires. It should be noted that
installing tire chains on the tires will
provide a greater driving force, but will
not prevent side skids.
• Do not install studded tires without
first checking local, state and municipal
regulations for possible restrictions
against their use.
Chain installation
When installing tire chains, follow the
manufacturer’s instructions and mount
them as tightly possible. Drive slowly
(less than 20 mph (30 km/h)) with
chains installed. If you hear the chains
contacting the body or chassis, stop and
tighten them. If they still make contact,
slow down until the noise stops. Remove
the tire chains as soon as you begin
driving on cleared roads.
When mounting snow chains, park the
vehicle on level ground away from traffic.
Turn on the vehicle Hazard Warning
Flasher and place a triangular emergency
warning device behind the vehicle (if
available). Always place the vehicle in P
(Park), apply the parking brake and turn
off the engine before installing snow
chains.
NOTICE
When using tire chains:
• Wrong size chains or improperly
installed chains can damage your
vehicle's brake lines, suspension,
body and wheels.
• Use SAE "S" class or wire chains.
• If you hear noise caused by chains
contacting the body, retighten the
chain to prevent contact with the
vehicle body.
• To prevent body damage, retighten
the chains after driving 0.3~0.6 miles
(0.5~1.0 km).
• Do not use tire chains on vehicles
equipped with aluminum wheels. If
unavoidable, use a wire type chain.
• Use wire chains less than 0.59 inch
(15mm) wide to prevent damage to
the chain’s connection.
Winter Precautions
Use high quality ethylene glycol
coolant
Your vehicle is delivered with high
quality ethylene glycol coolant in the
cooling system. It is the only type of
coolant that should be used because it
helps prevent corrosion in the cooling
system, lubricates the water pump and
prevents freezing. Be sure to replace or
replenish your coolant in accordance
with the maintenance schedule in
chapter 8. Before winter, have your
coolant tested to assure that its freezing
point is sufficient for the temperatures
anticipated during the winter.

08
8-9
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 underinflated 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.

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

Tires and Wheels ........................................................................\
..................9-27Tire Care ........................................................................\
.......................................... 9-27
R ecommended Cold Tire Inflation Pressures ....................................................... 9-
27
Check Tire Inflation Pressure
........................................................................\
......... 9-

28
Tire Rotation
........................................................................\
................................... 9-

29
Wheel Alignment and Tire Balance
....................................................................... 9-30
Tir

e 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 Tir

es
........................................................................\
............................... 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
E ngine Compartment Panel Fuse Replacement .................................................. 9-42
F
use/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 combina

tion lamp bulb replacement
.......................................................... 9-54
High moun

ted stop lamp replacement
................................................................ 9-57
License Pla

te Light Bulb Replacement
................................................................. 9-57
Int

erior Light Bulb Replacement
........................................................................\
... 9-58
Appearance Care ........................................................................\
................. 9-59Exterior Care ........................................................................\
................................... 9-59
Int erior Care ........................................................................\
.................................... 9-65
Emission Control System ........................................................................\
....9-68
California per chlorate notice
....................................................................... 9-719

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

Maintenance
9-4
You should exercise the utmost care
to prevent damage to your vehicle and
injury to yourself whenever performing
any maintenance or inspection
procedures.
We recommend you have your
vehicle maintained and repaired by
an authorized HYUNDAI dealer. An
authorized HYUNDAI dealer meets
HYUNDAI’s high service quality
standards and receives technical support
from HYUNDAI in order to provide you
with a high level of service satisfaction.
Owner’s Responsibility
Maintenance service and record
retention are the owner’s responsibility.
You should retain documents that show
proper maintenance has been performed
on your vehicle in accordance with
the scheduled maintenance service
charts shown on the following pages.
You need this information to establish
your compliance with the servicing
and maintenance requirements of your
vehicle warranties.
Detailed warranty information is
provided in your Owner’s Handbook &
Warranty Information booklet.
Repairs and adjustments required as a
result of improper maintenance or a lack
of required maintenance are not covered.
Owner Maintenance Precautions
Inadequate, incomplete or insufficient
servicing may result in operational
problems with your vehicle that could
lead to vehicle damage, an accident, or
personal injury. This chapter provides
instructions only for the maintenance
items that are easy to perform. Several
procedures can be done only by an
authorized HYUNDAI dealer with special
tools.
Your vehicle should not be modified
in any way. Such modifications may
adversely affect the performance, safety
or durability of your vehicle and may, in
addition, violate conditions of the limited
warranties covering the vehicle.
Certain modifications may also be in
violation of regulations established by
the U.S. Department of Transportation
and other federal or state agencies.
NOTICE
Improper owner maintenance during
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.
maintEnanCE SErviCES

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