Power locks will not unlock when put in park.

drove the damn thing 3 days straight. and now it won t even make a clickin sound when i turn the key to get ignition. is this common???

it doesn t turn the starter at all. there s a light flashin in my dashboard and i believe that it has something to do with the vats system. it s a car with a keypadlock trough it
i have no electronics or relearn stuff at all. what can the problem be. please help me. ps
the car was runnin fine 7 days ago. i turned it of and it wouldn t start up again. does this car have a rest button???

howling in the what sounds like rear end at lower speeds 35-55. If you let off the gas you don't here it. After you get up to 65 mph plus i don't hear it. Is this anything serious?