Both my doors rattle, What to do?
 

Driving home last night, Both doors rattle, what the heck!
How do I remedy this problem?

I would say new weatherstrip and door striker time.
My passenger door never gets used (I'm single) and it is hard to shut and tight 'cause the weatherstrip is still new (from the factory)

I would look at the striker bolt on the doors to see if they are worn. If the plastic ring is missing, it will rattle. If it is worn, go get some from GM.

Check the strikers in the door jamb.

Strikers is a good starting point. I had the slieve fall off the on on the passanger side and it raddled like hell. A $26 new bolt and it is all better.

striker if the weatherstripping was gone youd hear wind whistle i think you can get aftermarkets cheaper than the $26 that was quoted by the other poster try motormite or help in the local auto parts chain store

Yeah $26 is the highest I found it too but I wanted original GM and I didn't want to wait. It annoyed me too much.