That is rather peculiar. So, you put new bulbs in, the warning light goes out but the new bulbs do not light?
You are obviously drawing enough current with the new bulbs to satisfy the warning light. I would experiment and pull the new bulb(s) to see if the warning would come back on.
Which bulbs did you replace and what brand/type did you use? I took the bulbs out in the warning light came back on. Put them back in the warning went back out i replace the brake lights and i used sylvania .