From: http://www.2carpros.com/makes/Hyundai.htm Answer: It sounds as if the brake light switch needs to be adjusted. It is located on the brake pedal leakage up under the dash.
the switch needs to be adjusted
Chjeck the brake light switch located somewhere on the brake pedal lever.
it would be the brake light switch about 20 dollars at autozone
It should be under the dash on the drivers side.
What are the bracket in the back seat of 2003 Hyundai Accent for?
Get your brakes checked. It can be something simple, or it can mean impending doom.
brake lamp switch failure
Brake light switch, goto your Hyundai dealership, buy the part for $15 and install it
The check engine light, on your Hyundai Elantra can be reset by removing the fuse. Keep the fuse out for 10 seconds and replace it to its slot.
2007 Hyundai Elantra brake light bulb replacement: Purchase the correct replacement brake light bulb(s) first, before disassembling the vehicle. See sources and related links below for replacement brake light bulb information. Then consult your owner's manual for the replacement procedure. As simple as it sounds, the owner's manual is the best place to start for brake light bulb replacement instructions and illustrations. You may want to consider replacing both left and right at the same time in order to keep brightness and color equal (optional).
airbag light is on dash
where is brake light switch