I guess I have 2 questions...
I got my Cobalt LT in July of 2007, and I'm well under my warranty - 21,000 miles as of now.
Both of my key fobs stopped working. One a while ago, the second one a month or two ago. I changed batteries in both, but still, they don't work.

My question is 2 parts:
A- Will they replace these under warranty for free?
B- If they won't replace these under warranty:
Where can I get new ones?
How much will they cost?
How much will the dealer ship charge to program it?

I'm so annoyed! Winter is coming and I want to use my remote start... afterall, I paid for it!

Anyone with any experience or knowledge, I'd appreciate your advice/stories.
Thanks for any help guys!

 

Take it to the dealership, it is covered under warranty. It sounds like the keyfobs lost sync with the computer for some reason. The dealership should be able to sync them back up for you.