Park the working car close enough for the jumper cables to reach, but do not let the vehicles touch
Turn off both cars
Put both cars in park or neutral and set the parking brakes
Open both hoods
Connect one red clamp to the dead battery’s positive terminal
Connect the other red clamp to the working battery’s positive terminal
Connect one black clamp to the working battery’s negative terminal
Connect the other black clamp to an unpainted metal ground on the dead car, away from the battery
Start the working car and let it run for a few minutes
Try starting the dead car
If it starts, keep it running
Remove the cables in reverse order
Let the jumped car run for at least 20 minutes
If it does not start, wait a few minutes and try again
If it still does not start, check the battery, cables, and connections