there is a light came on on my dash board and would not come off what does mean

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My dash board has several lites but one of them came on it looks like a horse shoe with two arrows inside pointing in the opposite direction and it is in yellow. it came on and would not come offf what does it mean/ I have a 1997 Toyota Corolla L-touring Wagon ABS/AC/SRS/PS/PW/1500CC where can I download a manual for it or whould should i do. Thanks Safo