How do i start a chevy impala without keys?

You can use the key fob remote to start the 2017 Chevy Impala from outside the vehicle, but You will need the keys to unlock the steering wheel and be able to drive. To start, press and release the lock button on the fob then immediately push and hold the start button for about four seconds or until the parking lights flash. Get in the vehicle and insert the key in the ignition. If You were to lose the ignition key, a new ignition switch would need to be installed. This is a task best left to a professional because it requires drilling out the cylinder and it would be quite possible to damage the steering column if You were to drill too far.