i got a 99 integra LS. couple days ago, my brake light indicator came on even i release the parking brake. i checked the brake pad and the fluid. they are ok. then after i drove like 10-20 mins, the indicator light turn off. i turn off the car and start again. the light won't on. and i found out it only will on when you haven't start your car at least over night. is something wrong with my brake system? i install aem big rotor kit on my car. will that affect my brake system? plz help!

 

You've described pretty much the same symptoms in my car. Although the brake fluid reservoir was full anyway, it looked like it could hold a little more. So I poured a little more in and the light went away. Hope this helps.

 

Sounds like your parking brake needs to be adjusted.