answering for USA cars only on this USA forum....
so does the A/c work right.
does the fan (blower ) surge
are there other lights winking?
the A/C light if blinking and the A/C main clutch does not cycle at each blink,? then....
that means just the lamp is bad, (or its wiring or contacts to it)
are bad. not a big deal. id ignore it.
good luck finding Suzuki parts.... they bugged out here.
typical suzuki bs, no drawings, (sparse to none)
id sell this dog if in usa. sure would,
http://www.suzukicarparts.com/parts/2003/Suzuki/Grand%20Vitara/Base/index.cfm?siteid=214820
our last 04, this lamp assembly comes out.
and can be replaced, the problem is finding parts
and the wreckers here, have not suzuki anythings.
its a dealer only part, but where are the dealers,
answer they stopped dealing here.
they do have a repair system. but you';d need to call them.
(warranty repairs are still done for at least 8 years , epa laws)