2002 impala Interior lights stay on while driving?
If the interior lights stay on while driving on a 2002 Impala, there could be a problem with the headlight switch. Check the relay center for the headlights that is just behind the headlight switch.
I am assuming what you mean is your interior lights and head lights are kinda blinking while your car is running. If this is the case go down to your local auto parts store and get your alternator tested. It is very possible that it is not pushing enough amps. If this is not the case you may have a short somewhere.
The lights will automatically turn off in the day time. Automatically turn on at night. they are controlled by a light sensor, it determines if you need the lights or not. If the lights go on and off randomly not matter what the light conditions are, you may need to have a mechanic check out your light sensor.