all abs cars have a similar sensation and to be honest if you are in a situation that sets it off that bad then without you'd be in real trouble btu get it flushed/checked to be sure if you can't confirm last service/check
iirc it's one of the fuses in the secondary fuse box ( top row ) but ill have to look to see what one, should be on the lid anyway (back of drivers side glovebox)
worth testing it for a proper comparison that way you'll be used to it working and see the difference, off road of course
*edit*
may be worth waiting until all this slippy crap has gone first, see how you get on then