when i tried to start my iroc after the winter it would not start. i jumped it and all gauges looked good but when i turn the key absolutely nothing. no click no nothing. lights work, stero works, tried cleaning the terminals, it didn't help. is there a sercurity cut off, i have a security light but i haven't seen any system. does anywone have a suggestion.

 

Yes, there is a Vehicle Anti Theft System (VATS). If you search the archives, you'll find lots of information about it. You might begin by fully charging the battery, cleaning the resistor pellet contacts on the key, and try starting it again.