How do you turn inside brake warning light off or reset it on a Lexus ES300?

you are either low on brake fluid, the Ebrake switch is on or you have air in your brake lines. try lifting the ebrake and see if the light gets brighter. If it does, try unpluging the wire that goes to the brake master cylinder. If this don't work then i recomend taking it to a shop to have it looked at! Good Luck... Michael

on my 97 es300 the brake light was staying on because ebrake inside of back rotor was worn all the way down and system was sensing this.