When on button is pressed the instrument panel flickers and goes off

Depress the accelerator pedal fully three times within five seconds. Allow the pedal to release fully after each pump. Listen for a chime, indicating the procedure is successful. The "Change Oil" light will turn off.. With the ignition key in ON, press the RESET
button located in the driver's side instrument panel
fuse block. See "Instrument Panel Fuse Block" in
the Index.
2. When the CHANGE OIL light starts to flash, press
and hold the RESET button again.
The reset is complete when you hear the chimes
sound and the CHANGE OIL light goes out.

As I remember, the first button press(s) step through lighting the change oil light, the tire pressure light and no light on the dash. Stop pressing while the change oil light is lit and then press and hold until the chimes.

Fault with the main power supply regulator board. Ubnormal DC voltage output from it. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and precious time.

The panel is shorted, buy a new tv

Sounds to me like a loose wiring connection behind the dash or possibly loose fuse connections

• • 1. Press and hold the select/reset button on the right of the instrument panel beneath the odometer reading. 2. Insert the ignition key into the ignition while continuing to to hold the select/reset button. 3. Turn the ignition key to the power accessory position. This will illuminate all the lights on the instrument panel without the engine running. 4. Continue to hold down the select/reset button until the maintenance required light goes out. On some year models, the light may blink once before going out.
  
  

• 
  

you have some bad capacitors in your power supply you could have someone look for domed electroletic caps that have vented replace the domed ones the part value is written on the side

Ur backlight ic inverter board is dead.
U need a new one.

I would check the alternator. Check the battery terminal connections to make sure they are tight. My immediate response remains to check the alternator.

IF YOU PRESS THE MENU BUTTON IS THE THE PICTURE STILL FLICKERING ON THE MENU BLOCK.? IF SO YOU HAVE A THERMAL ISSUE WITH EITHER THE MAIN TOTAL ASSY, LVDS CABLE OR THE PANEL.

Return it for another one and cross fingers.