When pressing brake pedal headlights dash radio lights flicker

Cars these days have electronic switches connected to the computer system, and they operate simply, until a little glitch shows up. In my case, the brake switch plunger strike pad had disintegrated. This little half inch button goes into a metal pad that presses against the brake switch when the brake is released. The cruise control operates the same, both activated by the brake pedal, both found under the dash. If not this, the switch might be bad. Both found at Advance Auto.

Sound like a bad or loose ground, loose plug, fuse, feel around area above brake pedal and gently wiggle wires to see if you can duplicate dash blinking, if not the dashes digital board may have a cracked solder joint which could be connecting and disconnecting with vibration.
press the helpful button and follow me on Fixya for more tips

Why Is My Car Gauge Cluster Flickering

Cadillac Flickering Dash Lights fixed

Hi, if you didnt fix it yet I'll tell you what could cause the dash lights to come on while pressing on the brake pedal, and that is checking the bulbs AND putting the wrong one in the wrong hole, IE putting the back-up bulb in a brake/parking light socket . The single lead on the center of the back-up bulb shorts the double contacts on the brake/park light socket so the electricity just flows through the one tip of the bulb connecting the two contacts in the socket since the park and dash lights are on the same circuit the dash lights will be energized, hope that makes sense as it happened to me with a 66 mustang. Good luck!!

sorry so be the barer of bad news wiring loom fault

It is most likely the alternator.

i guess u have standard radio that came with the car? i don't know how it calls this thing, but when u turn on ur headlight, on the same stick there is another regulator that regulates light in the cabin and dash light, so turn it off, turn clockwise! or leave a little light in ur dashboard!

My Dash Board Cluster Won't work on my 1994 Lexus LS 400.
Can you help?

Check your battery connections.You most likely have a loose battery cable at battery.If those check good cllean & tight.check all your grounds

if it has been over 40,000 miles the drive belt may need to be replaced

hi simple one the brake light bulb replace the bulbs brake light filiment has gone on one side droped on to the lights circiut hence press brake light headlights come on and vise versa yates210456