Troubleshooting Your Mitsubishi Key Fob Your mitsubishi lancer key is fitted with a range of convenient features that will ease the process of driving. This includes a keyfob which can be used to lock, unlock and unlock your vehicle, as well as the power liftgate. If you're having issues with your key fob, you might require a replacement battery. Follow the steps below! Keyless Entry Keyless entry is one of the most convenient features found in newer cars. It allows you to start your car remotely, Mistubishi (Net-Pier.Biz) without having to search in your purse or pockets. The system is easy to use and consists of three parts A transmitter that is installed in the car (usually near the ignition) as well as a receiving unit that is located inside the door handle and the keyfob, which communicates between the two.