How to ⚡ Jump Start a Car in 3 Easy Steps

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Knowing how to jump start a vehicle is an essential skill for every driver. Even if you are lucky enough to never be surprised by a dead battery, it will be nice to know that you can assist another driver in need if the opportunity arises. Every driver should keep a set of dependable jumper cables in their vehicle at all times. A set of jumper cables can be purchased at an auto parts store or at a big box store for less than thirty dollars and will last many years. Most drivers store their jumper cables in their trunk.

How to jump start a car
You should never allow the jumper cable’s clamps to touch each other while they are being used

Before you learn how to use jumper cables to jump start a vehicle with a dead battery, you must understand that you should use jumper cables with caution. Never allow any of the jumper cable’s clamps to touch each other while they are being used. This could result in an electric shock.

How to Jump Start a Car

  1. 1

    Locate a Car with a Good Battery

    To use jumper cables to jump start the dead battery of your vehicle, you must first locate a car with a good battery. Because most drivers have experienced the hassle of an unexpected dead battery at least once, many will be more than happy to assist you in jump starting your vehicle. Position the other vehicle so that its front bumper is aligned with your front bumper, leaving a couple of feet of room for you to move in between the cars. Make sure both vehicles are turned completely off before attaching the jumper cables to the batteries!

  2. 2

    Red Clamp → Positive Post, Black Clamp → Negative Post, Black Clamp on the Dead Battery → Grounded Surface

    Open each of the vehicles’ hoods and make sure that they are safely propped. Most batteries have color coded rubber caps to cover the negative and positive posts. Universally, red denotes positive and black denotes negative. First, place a red clamp on the positive post of the good battery. Second, place the other red clamp on the positive post of the dead battery. Third, return to the car with the good battery and place the black clamp on the negative post. Finally, place the black clamp on a grounded surface on the vehicle with the dead battery. A grounded surface is any metal part of the vehicle’s frame. It should be easy to locate a section of your vehicle’s frame on which to place the black clamp. It is very important to place the black clamp on a grounded surface instead the negative post on the vehicle with the dead battery.

  3. 3

    Turn on the Engine of the Vehicle with the Good Battery

    Have the driver of the vehicle with the good battery turn their engine on and allow it to idle for a few minutes. Leaving the other car running for a short time will allow your dead battery to recharge before you attempt to start your engine. After a few minutes, you can attempt to start your engine. If your engine starts without any problems, leave both vehicles running for a few minutes to allow the battery to continue to charge. After several minutes, you can remove the jumper cables in the following order: remove the black clamp from the grounded surface of your vehicle, the other black clamp from the negative post of the good battery, the red clamp from your vehicle’s battery, and finally the other red clamp from the good battery.

🙏 Remember to thank the driver who allowed you to use their vehicle to jump start your dead battery.

Return your jumper cables to their storage area in your car and prepare to drive away. It is a good idea to drive your vehicle for at least ten to fifteen minutes before you turn the ignition off again. Depending on how low your battery’s charge is, it may be necessary to drive directly to an auto parts store to purchase a new battery for your vehicle.

Andrei Zakhareuski, Driving-Tests.org Founder
Andrei is a driver with 11+ years of experience and the founder of Driving-Tests.org.

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