my check engine light ,( brett) on 1990 Volvo 740

both brake indicator lights ,and the light bulb light are on ,what does that mean

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1 answer
The brake indicator lights can be from low brake fluid, e-brake switch adjustment or a failure of the brake hydraulic system. The bulb light is indicating a problem with one of the exterior lights.
Did all these lights and the O/D light come on at the same time?