Get Driving your vehicle -> ISG (Idle Stop and Go) system Guide for Hyundai Tucson SUV Third Generation (2016-2019)

Driving your vehicle

ISG (IDLE SSTOP AND GO)) SYSTEM (IIF EQUIPPED)

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).

To activate the ISG system

i

Information

Auto stop

■ Type A

The driving speed must reach at least

10 km/h (6 mph) after an idle stop.

■ Type B

The engine is automatically started

upon satisfying the starting condi-

tions.

The ISG system is always active,

when the engine is running.

i

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.

OTL055072/OTL055073

To stop the engine in idle stop mode

1. Lower the driving speed under 5

km/h (3 mph).

2. Set the gear in N (Neutral).

3. Release the clutch pedal.

The auto stop indicator (

) illumi-

nates in green on the instrument

cluster, when the engine stops.

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■ Type A

■ Type B

Auto start

■ Type A

■ Type B

OTLE055007

OTLE055035/OTLE055036

When the driver unfastens the seat- • The message, 'Auto Stop deacti-

OTLE055085/OTLE055037

belt or open the driver’s door (or the

hood) in the auto stop mode, you will

experience the followings.

vated. Start manually', appears on

the LCD display.

5

To restart the engine in the auto

stop mode

• Depress the clutch pedal with the

gear in N (Neutral).

• The ISG system is deactivated.

(The ISG OFF button indicator illu-

minates.)

• The message, "Press clutch pedal

for Auto Start", appears on the

LCD display.

• The auto stop indicator (

) goes

OFF on the instrument cluster,

when the engine is restarted.

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Driving your vehicle

■ Type A

The engine is automatically restart-

ed in the following situations.

Prerequisite for activation

The ISG system operates in the fol-

lowing situations.

- The fan speed of the manual cli-

mate control system is set above

the 3rd position, with the air condi-

tion ON.

- The driver’s seatbelt is fastened.

- The driver’s door and the hood are

closed.

- The fan speed of the automatic cli-

mate control system is set above

the 6th position, with the air condi-

tion ON.

- The brake vacuum pressure is

adequate.

- The battery is sufficiently charged.

OTL055074

- The outside temperature is between

-2 °C and 35 °C (28.4 °F and 95 °F).

■ Type B

- A certain period of time has been

elapsed with the air condition ON.

- The engine coolant temperature is

not too low.

- The defroster is activated.

- The brake vacuum pressure is low.

- The battery is weak.

- The driving speed exceeds 5 km/h

(3 mph).

OTL055075

The auto stop indicator (

) blinks

in green for 5 seconds on the instru-

ment cluster,

5-74

(Continued)

To deactivate the ISG system

• When the above indicator remains

ON, and when the above message

remains displayed, we recommend

you to have the IGS system checked

by an authorized HYUNDAI dealer.

OTLE055007

■ Type A

■ Type B

OTLE055004

5

• Press the ISG OFF button to deac-

tivate the ISG system. Then, the

ISG OFF button indicator illumi-

nates, and the message, "Auto

Stop Off", appears on the LCD dis-

play.

OTLE055039/OTLE055038

• Press the ISG OFF button again to

reactivate the ISG system. Then,

the ISG OFF button indicator turns

OFF.

i

Information

• The ISG system is not activated,

when the prerequisites to activate

the ISG system are unsatisfied. In

this case, the ISG OFF button indi-

cator illuminates, and the message,

"Auto Stop conditions not met",

appears on the LCD display.

(Continued)

5-75

Driving your vehicle

(Continued)

ISG system malfunction

• You can turn off the ISG OFF but-

ton indicator by driving over 80

km/h (50 mph) for up to 2 hours

with the fan speed below the 2nd

position. If the ISG OFF button

indicator remains ON, we recom-

mend you to contact an authorized

HYUNDAI dealer.

The ISG system may not operate:

When there is a malfunction with the

ISG sensors or the ISG system.

The followings occur, when there is

a malfunction with the ISG system:

The auto stop indicator (

) remains

ON in yellow after blinking for 5 sec-

onds.

WARNING

OTLE055007

• The light on the ISG OFF button

will illuminate.

When the engine is in auto stop

mode, the engine may restart.

Before leaving the vehicle or

checking the engine compart-

ment, stop the engine by plac-

ing the ignition switch to the

LOCK/OFF position or remov-

ing the ignition key.

i

Information

• When you cannot turn OFF the ISG

OFF button indicator by pressing

the ISG OFF button, or when the

malfunction with the ISG system

persists, we recommend you to con-

tact an authorized HYUNDAI deal-

er.

(Continued)

5-76

Prerequisites to reactivate the

battery sensor

The battery sensor deactiva-

tion

NOTICE

• Use only the genuine HYUNDAI

ISG battery for replacement. If

not, the ISG system may not nor-

mally operate.

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.

• Do not recharge the ISG battery

with a general battery charger. If

not, it may damage or explode

the ISG battery.

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.

Battery sensor

• Do not remove the battery cap. If

not, the battery electrolyte,

which is harmful to the human

body, may leak out.

OTL055025

i

5

Information

The ISG system may not operate in

the following situations.

The battery sensor is deactivated,

when the battery is disconnected

from the negative pole for mainte-

nance purpose.

- There is a malfunction with the IGS

system.

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.

- 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.

5-77

Driving your vehicle -> ISG (Idle Stop and Go) system for Your Hyundai Tucson SUV Third Generation (2016-2019)

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