In British English the word is normally pronounced /ˈvɪkə/. Why do you wonder at this? Many vowels become schwa-like in unstressed syllables.
I mean is it not r-controlled?
It means: R-Controlled Vowels (Phonics on the Web)
But if you want to know how "vicar" sounds, your best bet would be to listen to how it's pronounced by native speakers. That page about the "r-controlled vowels" doesn't really contain any terribly useful information.
Last edited by Chicken Sandwich; 29-Aug-2012 at 00:47.