2002 Jetta...Brake lights will not work

faulty brake light switch , or fuse ,, check your brake lights , if dont work change fuse and if that dont work change the brake light switch

check brake light fuse. if its fine then you didn't install switch properly. it needs to be adjusted so the lights come on at the right time

In order of most likely...

1. Switch on your e-brake stuck/bad/out of adjustment. Try pulling up on your e-brake or locate the switch and see if it's working.

2. Low on brake fluid, check the fluid reservoir in the engine compartment. Sensor switch could also be stuck/bad, unplug from reservoir and plug back in, tap lightly with screwdriver handle.

3. Burnt out tail/brake light somewhere on the car.

4. Not sure I've ever seen a fuse make the light stay on, maybe the ABS light but not the brake light, but you never know.

ok so what your saying is that the tail lights still work but no brake lights work, you've replaced the bulbs, next step is to check the fuse for the brake lights, if its bad just replace it, if its good, you need to check the brake light switch thats located at the top of the brake pedal arm, ( up under the dash where the brake arm attaches to the mount, you will see a switch,,, sometimes they just get stuck, so depress the brake and see if the switch is moving at all, if not, remove the switch and replace it as long as the adjustment looked to be correct.

There is a recall on the brake light switch. VW should replace it for free.

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Defective brake lights on Golf, GTI, Jetta, New Beetle and R32 are a potential safety hazard and should be replaced. February 26, 2007 - NEW YORK (CNNMoney.com) -- Around 800,000 Volkswagen vehicles have been recalled Monday because of faulty brake lights, the National Highway Traffic Safety Administration said.
The 790,000 vehicles include Jettas, New Beetles, Golfs, GTIs and R32s...all in the United States.
The specific years and models affected are:

• 1999-2005 Jetta sedans
• 2001-2005 Jetta wagons
• 1998-2007 New Beetle
• 2003-2007 New Beetle Convertibles
• 1999-2006 Golfs and GTIs
• 2004 R32

The malfunctioning brake lights and brake light switches could fail to come on or remain stuck on.
This recall expands on one announced by Europe's No. 1 carmaker last year, when 362,000 Jettas and New Beetles were recalled due to the same defective part.
Volkswagen said that dealers will immediately be prepared to accept service appointments to perform the repair at no charge, but the notification process isn't scheduled to begin until April.
NHTSA did not say if any injuries had been reported linked to the defective brake lights.

check brake light fuse first. then check bulbs. then check brake light switch.

check for faulty switch

Call dealerto replace brake light switch, some of them were covered under warranty. They were **** and they replaced all of them.

the brake light switch. under dash behind brake peddle arm.

well maybe you unhooked the brake switch look above you brake pedal you will see a switch with a wire like hook going to the pedal arm don't be surprised if that's what is I seen lots of people hit them changing fuses unintentionally!good luck hope this helps