doesn't it say in the owners manual? my bet is that they want you to have to bring it in so the dealer can charge you to hook up to a computer at a cost of more than $50 to tell you the flasher is shot. they think of everything...
or, you could go to a dealer and ask the parts guy where it's at, and how much one is.
1971 Nova(looks like 69 camaro from underneath!)
355sb, vortec heads, HOT cam,T-10 tranny, 3.70 gears 16X8" IROC wheels. 12" Corvette brakes on the way.
see pics here http://community.webshots.com/user/novaderrik