hmmm … so the "needs service " dashboard warning light turned on, then it was reset so it turned off , but it continues to turn on again each time you start the engine? I presume that warning light is used for routine service items, like time to renew the engine oil & the like. Do you know specifically why that warning light turned on in the first place? & what was done to turn it off? No experience w/your car, just a diy’er, but I’m guessing the car’s computer thinks whatever service it needed hasn’t been done yet. No idea how it could know that.