A jump start uses a working battery to supply enough current for the starter motor, then lets the alternator recharge the flat battery once the engine runs. The risks come from sparks, incorrect ...

The process is similar to boosting the battery of a gas-powered vehicle, but with a few key exceptions and precautions.

If your car battery is dead, you can jump start it with jumper cables and a second working vehicle. First, correctly identify the battery terminals and then, connect jumper cables in the right order.

If the battery (or batteries) in your 2018 GMC Sierra run down, you could use another vehicle and some jumper cables to start your Sierra. The following steps explain how to do so safely. Before ...

Loose or corroded battery terminals restrict electrical power from reaching the rest of the vehicle, making it difficult to start even with a jump. Remove the cables from the terminals and clean them ...