Have a look in the thread

"what dash lights mean"

(in mechanical section) if you don't have a hand book.

There's 2 lamps, one for low oil level and the other for low pressure

(see above for the difference).

Round about rev 3 or 4 stage

(can't remember which) Toyota got rid of the low level sender as it was prone to failing

-you've not given any profile info so rev

/ age unknown.

It

might be a failed oil level sender if the oil level is OK on the dipstick.

If it's low oil pressure then stop right away and don't drive it anywhere until it's checked out.
