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Jump-Starting Precautions

Before you begin, set the parking brake, turn off all electrical accessories and the ignitions of both vehicles. To avoid damage, unplug all electrical components – cellular phones, radar detectors, etc. – before disconnecting or connecting the battery cables.

  • Do not allow the vehicles to touch each other.
  • Connect cables in the correct order and position. (See “Removing battery cables” and “Attaching battery cables”)
  • Never attempt to charge or jump-start a frozen battery or one that is low on electrolyte. It may rupture or explode.

Jump-Starting Your Vehicle

With the extensive use of electrical equipment on today’s cars, it doesn’t take much to drain a battery. While jump-starting a battery may appear simple, special attention must be taken to ensure the safety of persons and vehicles involved.

  1. Install one end of the positive jumper cable clamp to the positive terminal of the discharged vehicle’s battery. The positive jumper cable clamp is typically color-coded red.
  2. Install the other end of the positive jumper cable to the battery’s positive terminal of the vehicle doing the boosting.
  3. Install the negative jumper cable clamp to the negative terminal of the booster vehicle’s battery. The negative jumper cable clamp is typically color-coded black.
  4. Connect the other end of the negative jumper cable to a grounding point on the discharged vehicle, such as the engine block or an air-conditioning bracket. Try to keep the jumper cable as far from the battery as possible and never connect the negative cable to the battery.

Try to start the vehicle with the discharged battery. If the engine seems to be turning too slowly, stop cranking and start the other vehicle to avoid draining both batteries. Try to start the discharged vehicle again.

After the vehicle starts, remove the cables in the reverse order of installation. Always refer to the owner’s manual for specific precautions regarding jump-starting.

The numbers indicate the sequence of attaching jumper cable clamps. Remove the cables in reverse order (4, 3, 2, 1).