Sensor lights turning on and off during driving

What is your question?

Hi,I had the power steering pump and the cooling fan replaced 2 months ago ,because the fan wouldn't stop working and it would drain the batttery ,then a month later I had the battery replaced because the car wouln't start.Now,the sensors(battery,brake,etc) turn on and off while I am driving (the clock keeps disappearing)and I am afraid it will break again.Any ideas what it can be?