commuter light

On my 94 530i, the readout light of the dashboard computer is very dim so as to be unable to read during daylight hours. All info is readable and correct on the instrument panel at the steering wheel. All other readout lights such as radio are fine. Is the fix a bulb change or something else?
Is the remedy a quick fix or a complicated process?
Thanks for any help.
George

there are replaceable mini lamps