Switch (they burn out fairly often)...and you can get a switch for $20 on eBay; From

Usually a sticky switch/button on the brake pedal. Fairly easy fix -- buy part at dealer or look on eBay.

What keeps burning out the bulbs? If so are you using the correct heavy duty bulb? is there moisture inside the signal lens? You could also switch to LED replacement bulbs, kits are sold on eBay, they are plug and play.

get the OBD codes read as you wont always get the CEL , i'd start there

brake light switch bad, should be attatched to interior frame under dash, and has button that usually moves when brake pedal pushed. replace the switch genarally fairly cheep 20 bucks or less, most around 10 to 15.

First off, check the fuse. If it is blown, I would atleast check the electrical connector for the brake switch. Remember to never replace a fuse with a fuse with a higher amperage rating.

If the fuse isn't blown, it's still a fairly cheap and easy fix. The brake switch is about $20-30. If you look up from the brake pedal, you'll see a yellow pin that resembles a grenade pin. Pull that and the sensor should slide off. Carefully disconnect the electrical connector and look closely at it, if it seems burned at all on the clip side, have the connector replaced as well.

First check that your headlights are not burned out. You may have been running on one bulb for a while then it feels like the switch or relay died when it was only the other bulb burning out.

it is fairly cheap fix. If the bulbs are old anyhow (more than 7 years), it is worth replacing them because they are fairly dim compared to new ones.

Good luck.

Please rate me - even for the suggestion

I assume this is an electric window? The switch is probably bad. Easiest fix is to find one on Ebay - very common and you'll seve about 20 bucks vs going to the dealer - they'll run about 50$ on Ebay. All you have to do is unsnap the molding around the driver's side switches, unclipd the switch and disconnect the harness.

then there must be a short somewhere in the startup or the acc switch, that is what fuses are for to burn out so nothing else will.

I had this problem on my 2002 Impala. It seems that it is fairly common to have to replace the driver's side electric window switches. I got myself a new aftermarket one from Ebay and then took my old one apart and fixed it. I then sold the "new" switch back on Ebay. Ebay switches are about $40-50 for the "cheap" aftermarket ones. Don't bother getting a used one. I recall that an OEM GM switch is $80-100.

Most likely the switch, you may be able to repair it, pull it out and have a look they are fairly simple to figure out.

Regards
Dan