How to Jump Start a Hyundai Elantra

1. Park the vehicles close enough for the cables to reach without letting them touch, and keep clear of fans and moving parts.
2. Turn off all electrical devices, put the vehicle in P (Park), set the parking brakes, and turn both vehicles OFF.
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/chassis ground 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. After starting, drive at least 30 minutes or idle at least 60 minutes before shutting off the engine.
8. Disconnect the cables in exact reverse order: (4), (3), (2), then (1).

• Do not let the cables touch anything except the correct terminals or ground, and do not lean over the battery.
• If the vehicle will not start after a few attempts, it probably needs servicing.

Source: 2023 Hyundai Elantra owner's manual, PDF page 462. 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.