Originally Posted by willwren
It could also be a level sensor in the little reservoir.
Ayup. I think that'* Thing Number One that the manual tells you to check if _both_ those lights come on at the same time.
I know mine was extremely finicky: I looked at the reservoir when my warning lights came on, thought "Sheesh, it'* not _that_ low," but went ahead and added fluid to the Full mark anyway, and sunovagun, that was the whole problem. (The actual cause later on turned out to be a leaky master cylinder, although it was working okay at the time; the lights were triggered only by the low fluid level.)