battery Hyundai Elantra 2017 Service Manual

5-15
Driving your vehicle
5
- Vehicle with automatic transmission/dual clutch transmission
Button Position Action Notes
ON
Press the Engine Start/Stop button while it
is in the ACC position without depressing
the brake pedal.
The warning lights can be checked before
the engine is started.Do not leave the Engine Start/Stop button in
the ON position when the engine is not run-
ning to prevent the battery from discharging.
Blue indicator
START
To start the engine, depress the brake pedal
and press the Engine Start/Stop button with
the shift lever in the P (Park) or in the N
(Neutral) position.
For your safety, start the engine with the
shift lever in the P (Park) position.If you press the Engine Start/Stop button
without depressing the brake pedal, the
engine does not start and the Engine
Start/Stop button changes as follows:
OFF
→ACC →ON →OFF or ACC
Not illuminated

5-19
Driving your vehicle
5
Information
If the smart key battery is weak or the
smart key does not work correctly,
you can start the engine by pressing
the Engine Start/Stop button with the
smart key in the direction of the pic-
ture above.
i
OAD055002L

5-46
Driving your vehicle
ABS cannot prevent a loss of stabili-
ty. Always steer moderately when
braking hard. Severe or sharp steer-
ing wheel movement can still cause
your vehicle to veer into oncoming
traffic or off the road.
On loose or uneven road surfaces,
operation of the anti-lock brake sys-
tem may result in a longer stopping
distance than for vehicles equipped
with a conventional brake system.
The ABS warning light ( ) will stay
on for several seconds after the
Engine Start/Stop button is in the ON
position. During that time, the ABS
will go through self-diagnosis and the
light will go off if everything is nor-
mal. If the light stays on, you may
have a problem with your ABS. We
recommend that you contact an
authorized HYUNDAI dealer as soon
as possible.When you drive on a road having
poor traction, such as an icy road,
and apply your brakes continu-
ously, the ABS will be active con-
tinuously and the ABS warning
light ( ) may illuminate. Pull
your car over to a safe place and
turn the engine off.
Restart the engine. If the ABS
warning light is off, then your ABS
system is normal.
Otherwise, you may have a prob-
lem with your ABS system. We
recommend that you contact an
authorized HYUNDAI dealer as
soon as possible.
Information
When you jump start your vehicle
because of a drained battery, the ABS
warning light ( ) may turn on at the
same time. This happens because of
the low battery voltage. It does not
mean your ABS is malfunctioning.
Have the battery recharged before
driving the vehicle.
i
NOTICE
If the ABS warning light ( ) is
on and stays on, you may have
a problem with the ABS. Your
power brakes will work normal-
ly. To reduce the risk of serious
injury or death, we recommend
that you contact your HYUNDAI
dealer as soon as possible.
WARNING

5-54
The ISG system is to reduce the fuel
consumption by automatically shut-
ting down the engine, when the vehi-
cle is at a standstill (i.e. red stop light,
stop sign, and traffic jam).
The engine is automatically started
upon satisfying the starting condi-
tions.
The ISG system is always active,
when the engine is running.
Information
When the engine is automatically
started by the ISG system, some warn-
ing lights (i.e. ABS, ESC, ESC OFF,
EPS, and parking brake warning
light) may illuminate for a few sec-
onds due to the low battery voltage.
However, it does not indicate a mal-
function with the ISG system.
To activate the ISG system
Auto stop
To stop the engine in idle stop mode
1. Decrease the vehicle speed to
0km/h.
2. Shift to D (Drive) or N (Neutral).
3. Press the brake pedal.
The auto stop indicator ( ) illumi-
nates in green on the instrument
cluster, when the engine stops.
Information
The driving speed must reach at least
8 km/h after an idle stop.
i
i
ISG (IDLE STOP AND GO) SYSTEM (IF EQUIPPED)
Driving your vehicle
OAD055014

5-56
The engine is automatically restart-
ed in the following situations.
- The fan speed of the manual cli-
mate control system is set above
the 3rd position, with the air condi-
tion ON.
- The fan speed of the automatic cli-
mate control system is set above
the 6th position, with the air condi-
tion ON.
- A certain period of time has been
elapsed with the air condition ON.
- The defroster is activated.
- The brake vacuum pressure is low.
- The battery is weak.
- The driving speed exceeds 2 km/h.The auto stop indicator ( ) blinks
in green for 5 seconds on the instru-
ment cluster,
Prerequisite for activation
The ISG system operates in the fol-
lowing situations.
- The driver’s seatbelt is fastened.
- The driver’s door and the hood are
closed.
- The brake vacuum pressure is
adequate.
- The battery is sufficiently charged.
- The outside temperature is between
-2 °C and 35 °C (28.4 °F and 95 °F).
- The engine coolant temperature is
not too low.
Driving your vehicle
OAD055015

5-59
Driving your vehicle
The battery sensor deactiva-
tion
The battery sensor is deactivated,
when the battery is disconnected
from the negative pole for mainte-
nance purpose.
In this case, the ISG system is limit-
edly operated due to the battery sen-
sor deactivation. Thus, the driver
needs to take the following proce-
dures to reactivate the battery sen-
sor after disconnecting the battery.
Prerequisites to reactivate the
battery sensor
Keep the engine in the OFF status
for 4 hours, and attempt to restart the
engine 3 to 4 times for the battery-
sensor reactivation.
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 reactivat-
ed.
Information
The ISG system may not operate in
the following situations.
- There is a malfunction with the IGS
system.
- The battery is weak.
- The brake vacuum pressure is low.
In those cases, we recommend you to
have the ISG system checked by an
authorized HYUNDAI dealer. • Use only the genuine HYUNDAI
ISG battery for replacement. If
not, the ISG system may not nor-
mally operate.
• Do not recharge the ISG battery
with a general battery charger. If
not, it may damage or explode
the ISG battery.
• Do not remove the battery cap. If
not, the battery electrolyte,
which is harmful to the human
body, may leak out.
NOTICE
i5OAD055013
Battery sensor

5-84
Driving your vehicle
Check battery and cables
The winter temperature increases
the battery consumption.Inspect
the battery and cables, as speci-
fied in the chapter 7.The battery
charging level can be checked by an
authorized HYUNDAI dealer or in a
service station.
Change to "winter weight" oil if
necessary
In some regions during winter, it is
recommended to use the "winter
weight" oil with lower viscosity. For
further information, refer to the chap-
ter 8. When you are not sure about a
type of winter weight oil, consult an
authorized HYUNDAI dealer.Check spark plugs and ignition
system
Inspect the spark plugs, as speci-
fied in the chapter 7.If necessary,
replace them. Also check all ignition
wirings and components for any
cracks, wear-out, and damage.
To prevent locks from freezing
To prevent the locks from being
frozen, spray approved de-icing fluid
or glycerin into key holes. When a
lock opening is already covered with
ice, spray approved de-icing fluid
over the ice to remove it. When an
internal part of a lock freezes, try to
thaw it with a heated key. Carefully
use the heated key to avoid an injury.Use approved window washer
anti-freeze solution in system
To prevent the window washer from
being frozen, add authorized window
washer anti-freeze solution, as spec-
ified on the window washer contain-
er. Window washer anti-freeze solu-
tion is available from an authorized
HYUNDAI dealer, and so are the
most vehicle accessory outlets. Do
not use engine coolant or other types
of anti-freeze solution to prevent any
damage to the vehicle paint.

6-4
IF THE ENGINE WILL NOT START
What to do in an emergency
If the engine doesn't turn over
or turns over slowly
• Be sure the shift lever is in N
(Neutral) or P (Park) if it is an auto-
matic transmission vehicle. The
engine starts only when the shift
lever is in N (Neutral) or P (Park).
• Check the battery connections to
be sure they are clean and tight.
• Turn on the interior light. If the light
dims or goes out when you operate
the starter, the battery is drained.
Do not push or pull the vehicle to
start it. This could cause damage to
your vehicle.See instructions for
"Jump Starting" provided in this
chapter.
If the engine turns over nor-
mally but doesn't start
• Check the fuel level and add fuel if
necessary.
If the engine still does not start, we
recommend that you call an author-
ized HYUNDAI dealer for assistance.Jump starting can be dangerous if
done incorrectly. Follow the jump
starting procedure in this section to
avoid serious injury or damage to
your vehicle. If in doubt about how to
properly jump start your vehicle, we
strongly recommend that you have a
service technician or towing service
do it for you.
Push or pull starting the vehicle
may cause the catalytic con-
verter to overload which can
lead to damage to the emission
control system.
CAUTION
JUMP STARTING

6-5
What to do in an emergency
6
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 ignit-
ed.
Keep batteries out of
reach of children.
(Continued)
(Continued)
Batteries contain sulfu-
ric acid which is highly
corrosive. 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 imme-
diate medical attention. If acid
gets on your skin, thoroughly
wash the area. If you feel pain or
a burning sensation, get med-
ical attention immediately.
•When lifting a plastic-cased
battery, excessive pressure
on the case may cause battery
acid to leak. Lift with a battery
carrier or with your hands on
opposite corners.
•Do not attempt to jump start
your vehicle if your battery is
frozen.
(Continued)
WARNING (Continued)
•NEVER attempt to recharge
the battery when the vehicle’s
battery cables are connected
to the battery.
•The electrical ignition system
works with high voltage.
NEVER touch these compo-
nents with the engine running
or when the Engine Start/Stop
button is in the ON position.
•Do not allow the (+) and (-)
jumper cables to touch. It may
cause sparks.
•The battery may rupture or
explode when you jump start
with a low or frozen battery.

6-6
What to do in an emergency
To prevent damage to your vehi-
cle:
• Only use a 12-volt power supply
(battery or jumper system) to
jump start your vehicle.
• Do not attempt to jump start
your vehicle by push-starting.
Information
An inappropriately disposed
battery can be harmful to the
environment and human
health. Dispose the battery
according to your local law(s)
or regulations.
Jump starting procedure
1. Position the vehicles close enough
that the jumper cables will reach,
but do not allow the vehicles to
touch.
2. Avoid fans or any moving parts in
the engine compartment at all
times, even when the vehicles are
turned off.
3. Turn off all electrical devices such
as radios, lights, air conditioning,
etc. Put the vehicles in P (Park, for
automatic transmission vehicle) or
neutral (for manual transmission
vehicle), and set the parking
brakes. Turn both vehicles OFF.iNOTICE
Pb