lit up like a xmas tree

hi everyone drove home from work and all me warning lights come TC.ABS/SLS,OFFROAD REAR SUSPENSION ,HILL DECENT. pulled over turned ignition off/on everything ok, is it a warning sign for something more sinister to happen, any advise appreciated.
disco 2 gs auto td5 2002.

groans, three amigos
do a search

It's a bit more than just the 3 little buggers........I would suggest its an intermittent "ground reference fault" at the SLABS ECU.

I would be checking/replacing my battery very soon, if I were you.

thanks guys for your replies,is a ground reference fault a broken wire or short ?.
is the slabs ecu located in the front passenger footwell or under passanger front seat?
checked battery 12.7 volts all seems ok.
drove car today no warning lights on all appears to be ok.
think i will try and get hold of a nanocom when on sale again.
again cheers everyone