On my dads 97 Maxima, the ebrake light is going on and off. Does anyone know how to fix this/what might be wrong with it?

 

Check the brake fluid, it may be low. If it is, dont just fill it up. Check your brakes to see if they are low. Reason being if they are low and you fill it up, when you change your brakes the fluid is going to overflow and make a mess. Check it out, let us know what happens.

 

Check the brake fluid, most likely is low enought to trigger the light. The reason why it might be going on/off is because brake fluid expands with heat. I had that problem with my Subaru SVX.
Good luck, Kepp us updated.

 

Low brake fluid is also an indication that your pads are worn. As the pads wear down, the brake caliper piston comes further out of the caliper. The further out the piston comes, more fluid is displaced into the caliper. More fluid into the caliper makes the level in the master cylinder reserve drop which makes the light turn on.

The light not only means your fluid is low, but is also an indication that your pads are worn down enough that they might need replacement soon.