2018 Hyundai Elantra maintenance

7-30
Maintenance
B
BA
A T
TT
TE
ER
R Y
Y
To prevent SERIOUS INJURY or
DEATH to you or bystanders,
always follow these precautions
when working near or handling the
battery:
Always read and follow
instructions carefully when
handling a battery.
Wear eye protection
designed to protect the
eyes from acid splashes.
Keep all flames, sparks, or
smoking materials away
from the battery.
Hydrogen is always present in battery cells, is highly
combustible, and may
explode if ignited.
Keep batteries out of reach
of children. (Continued)
WARNING (Continued)Batteries contain sulfuric
acid which is highly corro-
sive. Do not allow acid to
contact your eyes, skin or
clothing.
If acid gets into your eyes, flush
your eyes with clean water for at
least 15 minutes and get immediate
medical attention. If acid gets on
your skin, thoroughly wash the
area. If you feel pain or a burning
sensation, get medical attention
immediately.
When lifting a plastic-cased bat-
tery, excessive pressure on the
case may cause battery acid to
leak. Lift with a battery carrier or
with your hands on opposite cor-
ners.
Do not attempt to jump start your
vehicle if your battery is frozen.
NEVER attempt to recharge the
battery when the vehicle’s battery
cables are connected to the bat-
tery. (Continued)
(Continued)
The electrical ignition system
works with high voltage. NEVER
touch these components with the
engine running or when the
Engine Start/Stop button is in the
ON position.
Leaked battery electrolyte due to
repeated driving on sharp curves
(e.g. on circuits) may cause safe-
ty problem. Avoid repeated driv-
ing on sharp curves.
CALIFORNIA PROPOSITION 65
WARNING
Battery posts, terminals, and relat-
ed accessories contain lead and
lead compounds, chemicals known
to the State of California to cause
cancer, birth defects and reproduc-
tive harm. Batteries also contain
other chemicals known to the State
of California to cause cancer. Wash
hands after handling.
WARNING

7-31
7
Maintenance
When you do not use the vehicle fora long time in a low temperature
area, disconnect the battery and
keep it indoors.
Always charge the battery fully to prevent battery case damage in low
temperature areas.
For Best Battery Service
Keep the battery securely mounted.
Keep the battery top clean and dry.
Keep the terminals and connectionsclean, tight, and coated with petroleum
jelly or terminal grease.
Rinse any spilled acid from the battery immediately with a solution of water
and baking soda.
Battery RechargingNOTICE
Always follow these instructions
when recharging your vehicle's bat-
tery to avoid the risk of SERIOUS
INJURY or DEATH from explosions
or acid burns:
Before performing maintenance
or recharging the battery, turn off
all accessories and place the
ignition switch to the LOCK/OFF
position.
Keep all flames, sparks, or smok-
ing materials away from the bat-
tery.
Always work outdoors or in an
area with plenty of ventilation.
Wear eye protection when check-
ing the battery during charging.
The battery must be removed
from the vehicle and placed in a
well ventilated area.
Watch the battery during charg-
ing, and stop or reduce the charg-
ing rate if the battery cells begin
boiling violently.
(Continued)
WARNING
OAD075020

7-32
Maintenance
By jump starting
After a jump start from a good battery,
drive the vehicle for 20-30 minutes before
it is shutoff. The vehicle may not restart if
you shut it off before the battery had a
chance to adequately recharge. See
"Jump Starting" in chapter 6 for more
information on jump starting procedures.
Information
An inappropriately disposedbattery can be harmful to the
environment and human
health.
Dispose the battery according to your local
law(s) or regulation.
Reset Features
The following items may need to be reset
after the battery has been discharged or
the battery has been disconnected.
Power Windows
Trip Computer
Climate Control System
Clock
Audio System
Sunroof
i
(Continued)
The negative battery cable must
be removed first and installed
last when the battery is discon-
nected. Disconnect the battery
charger in the following order:
(1) Turn off the battery charger main switch.
(2) Unhook the negative clamp
from the negative battery ter-
minal.
(3) Unhook the positive clamp
from the positive battery ter-
minal.
Always use a genuine HYUNDAI
approved battery when you
replace the battery.

7-33
7
Maintenance
T
TI
IR
R E
ES
S
A
A N
N D
D
W
W H
HE
EE
EL
LS
S

Tire Care
For proper maintenance, safety, and
maximum fuel economy, you must
always maintain recommended tire
inflation pressures and stay within
the load limits and weight distribution
recommended for your vehicle.
(Continued)

Replace tires that are worn,
show uneven wear, or are
damaged. Worn tires can
cause loss of braking effec-
tiveness, steering control, or
traction.
ALWAYS replace tires with the
same size as each tire that
was originally supplied with
this vehicle. Using tires and
wheels other than the recom-
mended sizes could cause
unusual handling characteris-
tics, poor vehicle control, or
negatively affect your vehi-
cle's Anti-Lock Brake System
(ABS) resulting in a serious
accident.
Tire failure may cause loss of
vehicle control resulting in an
accident. To reduce risk of
SERIOUS INJURY or DEATH,
take the following precautions:
Inspect your tires monthly for
proper inflation as well as
wear and damage.
The recommended cold tire
pressure for your vehicle can
be found in this manual and
on the tire label located on the
driver’s side center pillar.
Always use a tire pressure
gauge to measure tire pres-
sure. Tires with too much or
too little pressure wear
unevenly causing poor han-
dling.
Check the pressure of the
spare every time you check
the pressure of the other tires
on your vehicle.
(Continued)
WARNING

7-34
Maintenance
All specifications (sizes and pres-
sures) can be found on a label
attached to the driver’s side center
pillar.
Recommended Cold Tire
Inflation Pressures
All tire pressures (including the
spare) should be checked when the
tires are cold. "Cold tires" means the
vehicle has not been driven for at
least three hours or driven less than
one mile (1.6 km).
Warm tires normally exceed recom-
mended cold tire pressures by 4 to 6
psi (28 to 41 kPa). Do not release air
from warm tires to adjust the pres-
sure or the tires will be under-inflat-
ed. For recommended inflation pres-
sure, refer to "Tire and Wheels" in
chapter 8. Recommended pressures must
be maintained for the best ride,
vehicle handling, and minimum
tire wear.
Over-inflation or under-inflation
can reduce tire life, adversely
affect vehicle handling, and
lead to sudden tire failure that
could result in loss of vehicle
control resulting in an accident.
Severe under-inflation can lead
to severe heat build-up, causing
blowouts, tread separation and
other tire failures that can result
in the loss of vehicle control
resulting in an accident. This
risk is much higher on hot days
and when driving for long peri-
ods at high speeds.
WARNING
OAD085011N

7-35
7
Maintenance
Check Tire Inflation Pressure
Check your tires, including the spare
tire, once a month or more.
How to check
Use a good quality tire pressure
gauge to check tire pressure. You
can not tell if your tires are properly
inflated simply by looking at them.
Radial tires may look properly inflat-
ed when they are under-inflated.
Remove the valve cap from the tire
valve stem. Press the tire gauge firm-
ly onto the valve to get a pressure
measurement. If the cold tire inflation
pressure matches the recommended
pressure on the tire label located on
the driver's side center pillar or in this
manual. No further adjustment is
necessary. If the pressure is low, add
air until you reach the recommended
pressure. Make sure to put the valve
caps back on the valve stems.
Without the valve cap, dirt or mois-
ture could get into the valve core and
cause air leakage. If a valve cap is
missing, install a new one as soon as
possible.If you overfill the tire, release air by
pushing on the metal stem in the
center of the tire valve. Recheck the
tire pressure with the tire gauge. Be
sure to put the valve caps back on
the valve stems. Without the valve
cap, dirt or moisture could get into
the valve core and cause air leakage.
If a valve cap is missing, install a new
one as soon as possible.
A cold tire means the vehicle has
been sitting for 3 hours and driven for
less than 1 mile (1.6 km) in that 3
hour period.
Allow the tire to cool before measur-
ing the inflation pressure. Always be
sure the tire is cold before inflating to
the recommended pressure.

Under-inflation results in
excessive wear, poor handling
and reduced fuel economy.
Wheel deformation is also
possible. Keep your tire pres-
sures at the proper levels. If a
tire frequently needs refilling,
have it checked by an author-
ized HYUNDAI dealer.
Over-inflation produces a
harsh ride, excessive wear at
the center of the tire tread,
and a greater possibility of
damage from road hazards.
CAUTION

7-36
Maintenance
Tire Rotation
To equalize tread wear, HYUNDAI
recommends that the tires be rotated
every 7,500 miles (12,000 km) or
sooner if irregular wear develops.
During rotation, check the tires for
correct balance.
When rotating tires, check for uneven
wear and damage. Abnormal wear is
usually caused by incorrect tire pres-
sure, improper wheel alignment, out-
of-balance wheels, severe braking or
severe cornering. Look for bumps or
bulges in the tread or side of tire.
Replace the tire if you find either of
these conditions. Replace the tire if
fabric or cord is visible. After rotation,
be sure to bring the front and rear tire
pressures to specification and check
lug nut tightness (proper torque is
79~94 lbf·ft [11~13 kgf·m]).Disc brake pads should be inspected
for wear whenever tires are rotated.
Information
Tires that are asymmetrical or direc-
tional can only be installed on the
wheel in one direction. The outside
and inside of an asymmetrical tire is
not easily distinguishable. Pay careful
attention to the markings on the side-
walls of the tires, noting the "outside"
marking and also the rotating direc-
tion before installing them on the
vehicle.
i

Do not use the compact spare
tire for tire rotation.
Do not mix bias ply and radial
ply tires under any circum-
stances. This may cause
unusual handling characteris-
tics that may cause loss of
vehicle control resulting in an
accident.
WARNING
ODH073802
■ Without a spare tire

7-37
7
Maintenance
Wheel Alignment and Tire
Balance
The wheels on your vehicle were
aligned and balanced carefully at the
factory to give you the longest tire life
and best overall performance.
In most cases, you will not need to
have your wheels aligned again.
However, if you notice unusual tire
wear or your vehicle pulling one way
or the other, the alignment may need
to be reset.
If you notice your vehicle vibrating
when driving on a smooth road, your
wheels may need to be rebalanced.
Improper wheel weights can dam-
age your vehicle's aluminum
wheels. Use only approved wheel
weights.
Tire Replacement
If the tire is worn evenly, a tread wear
indicator will appear as a solid band
across the tread. This shows there is
less than 2/32 inch (1.6 mm) of tread
left on the tire. Replace the tire when
this happens.
Do not wait for the tread surface to
become level with the tread wear
indicators before replacing the tire.
NOTICE
OLMB073027
Tread wear indicatorTo reduce the risk of DEATH or
SERIOUS INJURY:
Replace tires that are worn,
show uneven wear, or are
damaged. Worn tires can
cause loss of braking effec-
tiveness, steering control, and
traction.
Always replace tires with the
same size as each tire that
was originally supplied with
this vehicle. Using tires and
wheels other than the recom-
mended sizes could cause
unusual handling characteris-
tics, poor vehicle control, or
negatively affect your vehi-
cle's Anti-Lock Brake System
(ABS) resulting in a serious
accident.
(Continued)
WARNING