I believe the “Select” button changes the brightness , otherwise the dash may be getting sun burnt slowly
You could remove the outer shell & change the pespex glass (custom work!)
It’s a very technical job to try change the SMD LEDs used on the circuit board , but some lights may be intergrated inside the actual LCD screen like phones. I personally have not taken apart an actual LCD unit off the circuit board as it’s something I haven’t experienced myself yet (The UK is too dull & dark to worry about screen brightness most of the time)
// Meditation doesn't mean you have to sit still....
