Dash lights come on when brake pedal is pushed

So I recently swapped my dull green dash lights to blue LEDs, but since completing this, every time I push the brake, all of my lights come on, including my parking lights. Could this be completely unrelated to the bulb swap? Anyone ever encounter this or know of a possible solution?

 

Had this happen on a 82 camaro I bought years and years ago. Previous owner had put single filament bulbs in the dual filament tail light/brake light spot. Stepping on the brakes would feedback the extra power into the dash lighting. If you've changed tail lights recently start there.

 

most likely its your trailer light adapter is shorted, very common and causes all sorts of strange lighting to happen

to test it, unplug it from your tailights

 

I just went through the same thing with a 1976 MGB. All lights worked great. Put LED's in and my running lights came on with brake lights. Put in stock bulbs , no problem.
Put in different LED's no problem. There are two types of LED's. Try finding out the part number for one that does work.
I'll post the make & model of the ones I used in the MG tonight.

 

I used LEDs from www.superbrightleds.com and have no issues.

if you've changed anything other than the dash lights get the LED compatible blinker module

 

Thanks a lot guys, turns out when you cheap out on tail lights from eBay, they put the wrong bulbs in. They put 1156 in when it's supposed to be 1157 so quick and easy fix.

 

Awesome input, thanks all!