If its a VATS issue ?
Your security light should be staying on and it should be
throwing up a code.
If you have a different key ? Try it and see if its works.
If it does not, you could have the Vats value substituted
beyond the key switch.
If it starts, that will narrow down your problem.
If it doesn't,
you may have to have your car hooked up to diagnostic
I had this very same issue happen to my '90 ZR1 last month. Drove it for
about half an hour, then stopped at the local Hollywood Video rental
store. When I tried to start it, nothing. Just as you describe. Went
home got the extra keys, tried all three, nothing. Disconnected battery,
waited 10 minutes, nothing. Tried jumping the battery, nothing.
Re-seated all the fuses in the regular fuse box, nothing. Read in my
owners manual about an auxiliary fusebox located under and inside the
dash on the passenger side, something called the CRNK/A-B. I reseated
the fuses and the car started. I dont' know if I really did anything,
but it hasn't happened since. Luck? Dunno.
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