Check for a loose or broken ground wire at the headlight.
It sounds like you have a short somewhere.
Bulbs are replaced from rear of headlight. See answer to similar questions for how to do.
Low beams - 9006 bulbs or HB4 bulbs High beams - 9005 bulbs or HB3 bulbs
You will probably have to take the complete headlight assembly out or loose to be able to get to the bulbs.
You may want to go to www.sierra tradingpost.com They sell the headlamps and it may be just as inexpensive to get a new headlamp as try and find the bulbs. I believe that they are LED bulbs.
pull up on the 2 tabs that hold it to the housing. then siply twist the bulbs out of their sockets
The bulbs unscrew from the back of the light assy. sometimes you have to remove it to get to the back.
if you do not have a manual for car, call any auto parts place to find out....
open trunk and look behind the taillights as the bulbs just twist and pull out.
the first will be check for a blown fuse at headlamps fuse box
yes they have brake lights and you probably have a bad brake light switch which is on top of the brake pedal under the dash.
The interior bulbs on a 1999 Chevy Malibu are contained in a plastic fixture whose cover snaps open. Once inside the fixture, pop out the dead bulb and replace it with the appropriate replacement.