Park both cars close enough for jumper cables to reach, without touching
Turn off the ignition in both cars and set parking brakes
Identify battery terminals: positive (+) and negative (−)
If batteries are in separate compartments, ensure you can access both terminals safely
Connect one end of the red (positive) clamp to the dead battery’s + terminal
Connect the other end of the red (positive) clamp to the live battery’s + terminal
Connect one end of the black (negative) clamp to the live battery’s − terminal
Connect the other end of the black (negative) clamp to an unpainted metal surface on the dead car’s engine block (or a designated grounding point), not directly to the − terminal
Start the live car and let it run for 2–5 minutes
Attempt to start the dead car
If it doesn’t start, wait 1–2 minutes and try again once
Once the dead car starts, keep both cars running for a few minutes
Disconnect cables in reverse order:
Remove black clamp from the grounded metal surface on the dead car
Remove black clamp from the live battery − terminal
Remove red clamp from the live battery + terminal
Remove red clamp from the dead battery + terminal
Drive the dead car for at least 20–30 minutes to help recharge the battery
If the car still won’t start, stop and seek roadside assistance or professional help