97 Altima dashboard brake light stays on

Check this link for all Nissan warning lights

Nissan Altima Dashboard Warning Lights and Meanings

The Nissan Master Warning Light, Explained
Basically, all the master warning light does is let you know that there's some other warning you should pay attention to. According to the 2015 Nissan Altima owner's manual, when the ignition is in the ON position, the master warning light will turn on with any of the following warnings:
-Loose fuel cap
-Door open
-Trunk open
-Low fuel
-Low windshield wiper fluid
-Check tire pressure warning
-No key detected (happens if the Nissan Intelligent Key is left outside the vehicle)
-Release parking brake (this should occur any time you start the car after setting the parking brake)
If your Master Warning Light comes on, please contact your local Nissan Dealer

No button that I know of.
Did you check your brake light switch on the brake pedal ?

disconnect your brake light switch ,its in brake pedal once you disconnect ,brake light off,either swicht or grounded to other wire

there is a pressure switch under ur break pedal.it might come off happend on my altima i snapped in a penny and it solved it.switch needs to be pressed in inorder to turn the brake light off.good luck..

Check your brake light switch that is attached to your brake pedal arm under the dash and make sure it is in its bracket and the pedal arm is operating the switch open and closed when you push the pedal and release it

Your problem should be that the rubber stops that are mounted at the top of your break pedal came out or are worn down too much to press the buttons all the way in.
What they do is push the button that switches off your break lights when the break pedal is released (yes, kind of backwards way to design it, i know). That's why your lights stay on even when your car is off. I had to go to the junkyard to find replacements for mine and they are a ***** to replace.
They are chipped away easily by the break switches when your car shakes badly over a prolonged period of time. Like driving a couple of weeks on a bad front tire.

Lets keep it simple if the wiring harness is in good condition lets not look at that... first check your fuse if the fuse is good... check for power... if you have power coming and going from the fuse then check your brake switch ( located under the dash) attached to brake pedal. Please make sure your light bulbs are both good also. If your brake light switch is good and you have tried everything else it is either going to be in your 4 way switch or wiring harness

Try this, Since you are applying the hand brake. Manually pull up on the emergency pedal and see if the light goes out. If this does work then you could have one of several problems. but, I am thinking that you might be able to adjust the brake tensioner if this car has one.

that indicates you need to have the brakes checked soon

I know this is outdated but for those with this problem which i had too, it is a rubber stopper that attaches to the brake pedel itself to keep the switch depressed on my car for there is 2 switches and there is 2 rubber stops attached to the brake pedal. this being gone will cause the brake lights to stay on all the time.