How to Jump Start a Hyundai IONIQ 6

1. Park the vehicles close enough for the cables to reach, turn off all electrical devices, put both in P (Park), apply the parking brake and switch both vehicles OFF.
2. Open the hood, then remove the battery cover inside the front trunk and the motor compartment fuse box cover.
3. Connect one jumper cable to the red, positive (+) jumper terminal of your vehicle (1).
4. Connect the other end of that cable to the red, positive (+) battery/jumper terminal of the assisting vehicle (2).
5. Connect the second cable to the black, negative (-) battery/jumper terminal of the assisting vehicle (3).
6. Connect the other end of the second cable to the black, negative (-) chassis ground of your vehicle (4).
7. Start the assisting vehicle and let it run a few minutes, then start your vehicle.
8. Disconnect the cables in exact reverse order: (4), (3), (2), then (1).

• Use the jumper terminal in the motor compartment, and do not connect the cable to the negative (-) jumper terminal of the discharged battery.
• Keep your vehicle running at least 30 minutes at idle or driving; a fully discharged battery may need up to 60 minutes.
• Use only a 12 V power supply and do not try to push-start the vehicle.

Source: 2025 Hyundai IONIQ 6 owner's manual, PDF pages 521, 522. Steps are summarized in our own words (AI-assisted, checked against the cited pages 2026-10-18). Other model years can differ; your manual has the final word.