How to Jump Start a Hyundai IONIQ 5

1. Connect one jumper cable to the red, positive (+) jumper terminal of your vehicle (1).
2. Connect the other end of that cable to the red, positive (+) battery/jumper terminal of the assisting vehicle (2).
3. Connect the second jumper cable to the black, negative (-) battery/jumper terminal of the assisting vehicle (3).
4. Connect the other end of the second cable to the black, negative (-) chassis ground of your vehicle (4).
5. Start the assisting vehicle and let it run for a few minutes, then start your vehicle.
6. Disconnect the cables in exact reverse order: (4), then (3), then (2), then (1).

• Keep your vehicle running at least 30 minutes at idle or driving; a fully discharged battery may need up to 60 minutes.
• Never connect the cable to the negative (-) jumper terminal of the discharged battery; a spark could make the battery explode.
• Use only a 12 V power supply and do not push-start the vehicle.

Source: 2026 Hyundai IONIQ 5 owner's manual, PDF pages 712, 713. 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.