Ok. I'm sorry for the long post, but I'm absolutely lost as to what the problem may be... About 2 weeks ago, I got the typical Brake Light Switch Failure symptoms. I immediately ordered a new part, and installed it, with no luck. I ordered a second replacement thinking the switch may have been bad out of the box. Still no luck...

The issue springs up in the weirdest situations... Despite replacing the switch, the 3rd brake light always stays illuminated, and when the DRLs are on, one of the brake lights works intermittently. If I leave my lights in automatic, and it is light out, I can drive around endlessly without the dash lighting up like a Christmas tree...

However, if the headlights are on, the third dbrake light stays illuminated and the brake lights do not work. If I drive around while touching the brakes every 20-30 seconds or so, no warnings will ever come up. However, If I drive for 4-5 minutes straight, and don't have to use the brakes, the issue pops up again. It says HDC inoperable, the brake light comes on, a transmission fault warning pops up, and the suspension lowers. If I turn off the vehicle, and restart, the issue goes away for a few minutes, but will pop up again. After the restart, there are still no brake lights, etc. I have replaced all of the taillight bulbs with LR specific bulbs, and I've replaced the brake light switch 3 times. I have also cleared all of the codes from the ECU and started over, and it still happens.

Any ideas? I really can't afford to go through a stealership to get this fixed. Also, why do the warnings only appear when I avoid using the brake pedal? I just spent $1800 fixing this stupid vehicle last month, and now all of this pops up! Somebody please help!!!

 

You might want to say what vehicle you're talking about, and then post your question in the relevant forum instead of in the general area.