I recently had this problem with my 2004 SSR. I get in and turn key and absolutely nothing. I called a tow truck and by the time they got there the engine cranked. This has now happened to me 3 times this week and everytime if I wait half hour it cranks up. I know its not the battery and I'm thinking its electrical or computer related. Has this happened to anyone else... I'm taking it to the Chevy dealer tomorrow but they don't seem to know much about SSR's.