Hi Mosey, hope you are enjoying your Vellfire.The button shown in the image is a 4WD (four-wheel drive) switch, which is used to engage or disengage the 4x4 system in a vehicle. This specific button is found in a Toyota Hilux Surf.
The symbol on the button, "H-F-H" with an "x" in the middle, represents the different drive modes.
"H" typically stands for "High Range" and is used for normal driving on paved roads.
"F" often indicates "Full-Time" 4WD, which is suitable for all-weather conditions on various surfaces.
The "x" in the middle of the symbol represents the four wheels of the vehicle, indicating that all four are engaged in the drive system.
Regards, Bryn from Dorset