Prerequisite for activation
Information
If the Auto Stop () indicator
is white
on the instrument cluster, the ISG
system does not meet the prerequisites
above and is not active. If the Auto Stop
(
) indicator is yellow, have the
system
inspected by an authorized HYUNDAI
dealer.
Auto stop
When ISG is on, the engine stops automatically when both of the following occur:
1. Vehicle speed decreases to 0 mph (0 km/h) (full stop condition).
2. Brake pedal is depressed and gear is in D (Drive) or N (Neutral).
The Auto Stop () indicator
illuminates
in green on the instrument cluster, when
the engine stops.
Information
Idle stop cannot occur again until the vehicle speed goes above 3 mph (5 km/h) and then comes to a full stop again.
In Auto Stop mode, if the hood is opened, ISG system is deactivated.
When the system is deactivated, the ISG OFF button indicator illuminates and the message, "Auto Stop is off. Shift to P or N and start engine manually" appears on the cluster display with a warning sound.
If this occurs, depress the brake pedal and restart the engine manually.
Auto start
When ISG stops the engine automatically, the engine restarts if:
- The brake pedal is released. - You take your foot off the brake pedal and then depress the accelerator pedal when Auto Hold is activated. - You shift the gear from N (Neutral) or D (Drive) to R (Reverse) or P (Park) while depressing the brake pedal. - You shift the gear from N (Neutral) to D (Drive) while depressing the brake pedal.
The Auto Stop () indicator
goes to
white on the instrument cluster, when
the engine is restarted.
Cluster display messages
Auto Stop is Off. Shift to P or N and start engine manually
When the system is deactivated, the ISG off button indicator illuminates and a message appears on the cluster display with a warning sound if:
- The hood is opened.
- ISG system is not working normally.
If this occurs, depress the brake pedal and restart the engine manually. For your safety, restart the vehicle in the P (Park) position.
Press brake pedal for Auto Start
When the gear is shifted from N (Neutral) to R (Reverse), D (Drive), or Manual shift mode without the brake pedal depressed, a message appears on the cluster display. To activate auto start, depress the brake pedal.
AUTO STOP elapsed time
AUTO STOP display shows the elapsed time of engine stop by the Idle Stop and Go system.
You may check AUTO STOP elapsed time in the Trip Computer mode on the instrument cluster.
Hyundai Tucson (NX4) 2022-2025 Owner's Manual: Emergency Precautions
Tires
Do not use tires or wheels with different
size and type from the one installed on
your vehicle. It may affect the safety
and performance of your vehicle, which
could cause steering failure or rollover
causing serious injury.
When replacing the tires, be sure to
equip all four tir ...
Hyundai Tucson (NX4) 2022-2025 Owner's Manual: Trailer Stability Assist (TSA)
Trailer Stability Assist is operated as a
vehicle stability control system. The
Trailer Stability Assist stabilizes the
vehicle and trailer when the trailer sways
or oscillates. In most cases, trailer sway
happens at high speeds.
Factors that can cause trailer sway
include:
- High spee ...