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They will probably need to be cleared. Autozone will do this for free. while you're there, pick up a handheld OBDII scanner of your own. They're worth their weight in gold.
It will clear on its own after a few start cycles. You usually have to sweet talk them into resetting the light. I want down to harbor freight and got a scanner for $39 and keep it in my glove box. Mine was abused....