Driving your vehicle -> Deactivating the ISG for Your Hyundai I20 4 Door Third Generation (2021-2026)

Driving your vehicle  
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Your vehicle may be equipped with  
Deactivating the ISG  
the ISG system, which reduces fuel  
consumption by stopping and restarting  
the engine automatically.  
The engine starts automatically as soon  
as the starting conditions are met.  
NOTICE  
When the engine automatically starts  
by the ISG system, some warning lights  
(ABS, ESC, ESC OFF, EPS or Parking  
brake warning light) may turn on for a  
few seconds. This happens because of  
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If you want to deactivate the ISG system,  
press the ISG OFF button.  
The light on the ISG OFF button will  
illuminate.  
If you press the ISG OFF button again,  
the system will be activated and the light  
on the ISG OFF button will turn off.  
low battery voltage. It does not mean  
the system is malfunctioning.  
Activating the ISG  
Prerequisite for activation  
The ISG system operates in the following  
situations.  
śꢀ The driver’s seatbelt is fastened  
śꢀ The driver’s door and bonnet are  
closed  
śꢀ The brake vacuum pressure is  
adequate  
śꢀ The battery sensor is activated and the  
battery is sufficiently charged  
śꢀ Outside temperature is not too low or  
too high  
śꢀ The vehicle is driven over a constant  
speed and stops  
śꢀ The climate control system satisfies  
the conditions  
śꢀ The vehicle is sufficiently warmed up  
śꢀ The incline is gradual  
śꢀ The steering wheel is turned less than  
180 degrees and then the vehicle  
stops  
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06  
Auto stop  
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Manual Transmission/Intelligent  
Manual Transmission  
Three versions of idle stop are available  
for MHEV which is equipped with  
manual transmission or intelligent  
manual transmission.  
- Conventional Idle STOP  
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than 4 mph (7 km/h).  
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- Extended Idle STOP  
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- During Sailing Mode  
You can keep engine off status from  
sailing to standstill by pressing clutch  
and brake pedal nearly at the same time.  
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Manual Transmission/Intelligent  
Manual Transmission  
1. Decrease the vehicle speed to less  
than 3 mph (5 km/h).  
2. Shift into N (Neutral) position.  
3. Release the clutch pedal.  
Automatic Transmission/Dual Clutch  
Transmission  
1. Decrease the vehicle speed to 0 mph  
(0 km/h).  
NOTICE  
1. If last gear position was the 1st, ISG  
STOP will not be activated.  
2. Vehicle which is equipped with  
manual transmission or intelligent  
manual transmission must reach  
a speed of at least 5 mph (8 km/h)  
since last idle stop.  
2. Press the brake pedal.  
The engine will stop and the green AUTO  
STOP indicator (  
) on the instrument  
cluster will illuminate.  
3. During ISG STOP status, you can shift  
into N(Neutral) position and release  
clutch pedal, then ISG STOP status  
will remain as STOP.  
4. Extended Idle STOP operates even  
over 4 mph (7km/h) if it meets the  
speed requirement in each gear  
position. (example: Extended Idle  
STOP operates even at the 3rd speed,  
24 mph (40km/h)).  
NOTICE  
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manual transmission or intelligent  
manual transmission must reach  
a speed of at least 5 mph (8 km/h)  
since last idle stop and vehicle  
which is equipped with automatic  
transmission or dual clutch  
transmission must reach a speed of  
at least 3 mph (5 km/h) since last idle  
stop.  
5. If you unfasten the seat belt or open  
the driver’s door (engine bonnet), ISG  
system will be deactivated.  
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the driver’s door (engine bonnet), ISG  
system will be deactivated.  
6-47  
Driving your vehicle  
Automatic Transmission/Dual Clutch  
Transmission  
- Conventional Idle STOP  
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(0 km/h).  
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Auto start  
To restart the engine from idle stop  
mode (except 48V MHEV)  
Manual transmission vehicle/ Intelligent  
Manual Transmission  
Vehicle which is equipped with manual  
transmission or intelligent manual  
transmission is available two version of  
restart.  
- Conventional restart  
Press the clutch pedal when the shift  
lever is in the N (Neutral) position.  
- Extended Idle STOP  
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15 mph (25 km/h).  
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- During Sailing Mode  
You can keep engine off status from  
sailing to standstill by pressing brake  
pedal below 24 mph (40 km/h).  
- Late restart (if equipped)  
1. Depress the clutch pedal  
2. Engage the gear  
NOTICE  
Vehicle which is equipped automatic  
3. Release the brake pedal  
transmission or dual clutch  
transmission must reach a speed of at  
least 18 mph (30 km/h) for Extended  
Idle STOP or 3 mph (5 km/h) for  
Conventional Idle STOP since last idle  
stop.  
- If you unfasten the seat belt or open  
the driver’s door (engine bonnet)  
in auto stop mode at standstill, ISG  
system will be deactivated.  
NOTICE  
1. Late restart function is only operated  
when it is on a level ground and the  
vehicle is stable.  
2. To start the engine when the brake  
pedal is not pressed or gear is already  
engaged, press the brake pedal first  
and press on the clutch pedal for  
safety.  
3. To turn on the engine without vehicle  
movement with the brake pedal  
pressed (only with Late Restart),  
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immediately  
4. After the engine stall, If you operate  
as below the engine will start.  
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engine completely stop  
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6-48  
06  
Automatic Transmission/Dual Clutch  
Transmission  
- Release the brake pedal.  
NOTICE  
1. Late restart function is only operated  
when it is on a level ground and the  
vehicle is stable.  
2. To start the engine when the brake  
pedal is not pressed or gear is already  
engaged, press the brake pedal first  
and press on the clutch pedal for  
safety.  
The engine will start and the green AUTO  
STOP indicator (  
cluster will go out.  
) on the instrument  
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Manual Transmission/Intelligent  
Manual Transmission  
- Before standstill  
Press the clutch pedal if the clutch pedal  
has not pressed.  
If the clutch pedal has already been  
pressed, release the brake pedal or  
move the gear to a position other than N  
position.  
3. To turn on the engine without vehicle  
movement with the brake pedal  
pressed (only with Late Restart),  
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immediately  
4. After the engine stall, if you operate  
as below the engine will start.  
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engine completely stops  
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- After standstill  
5. After operating ISG STOP, if the  
vehicle speed increases instead of  
decreasing, the engine may restart  
automatically.  
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pressed, release the brake pedal or  
move the gear from N (Neutral).  
śꢀ ,IꢀWKHꢀFOXWFKꢀSHGDOꢀLVꢀQRWꢀSUHVVHGꢅꢀWKHꢀ  
engine will restart in accordance with  
the LATE Restart procedure.  
Automatic Transmission/Dual Clutch  
Transmission  
Release the brake pedal  
1) Depress the clutch pedal  
2) Engage the gear  
3) Release only the brake pedal  
NOTICE  
After operating ISG STOP, if the vehicle  
speed increases instead of decreasing,  
the engine may restart automatically.  
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