no warranty coverage up in canada if you have Miles in odometer

[DCCP]

I just found out that gmcanada won't cover anything under warranty until I change my odometer from miles to km (cost 600-800 bucks to do, 2-5 days to get done)I live in Ontario and the only 2 hummer dealers here have both told me the same. This sucks!!! Anybody know a way around this? I wanted to bring it in coz the plastic parts above the windshield that connect to roofrails have cracked and now flap like crazy when driving highway speeds, very annoying.