How to Jump Start a Ford Bronco

1. Park the booster vehicle close to the hood of the disabled vehicle without letting the two vehicles touch.
2. Pull back the red plastic boot and clamp the positive (+) jumper cable to the positive (+) terminal of the discharged battery.
3. Attach the other end of the positive (+) cable to the positive (+) terminal of the booster vehicle battery.
4. Attach the negative (-) jumper cable to the negative (-) terminal of the booster vehicle battery.
5. Make the last negative (-) connection to exposed metal on the disabled engine away from the battery and fuel injection, or to a ground point.
6. Start the booster vehicle and keep the engine speed between 2000 and 3000 RPM, then start the disabled vehicle.
7. Run both engines for three more minutes, then remove the cables in the reverse order of connection.

• Use only a 12 volt supply; with a jump pack or booster box, follow the manufacturer's instructions.
• Do not switch the headlamps on when disconnecting the cables, as the peak voltage could blow the bulbs.
• Do not push-start an automatic transmission vehicle, and do not disconnect the battery of the disabled vehicle.

Source: 2026 Ford Bronco owner's manual, PDF pages 320, 321. 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.