Whats the green `S`warning light surronded by a cog mean on the dash?

This is NOT a Tyre pressure sensor warning!
Don't know why people post this when they haven't got the foggiest idea.
It is a fault associated with the drivetrain which includes from the injectors on the engine to the transmission and possibly just a sensor malfunction.
There are multiple errors possible with this fault.
Requires a diagnostic OBD2 port analysis of the ECU to clear the fault codes and further analysis.

The car is now quite old, and the yellow gear ("cog") light indicates that the hydraulic pressure in the transmission is incorrect. Check fluid level and, if the fluid is murky or off-color, have the transmission serviced and the filter replaced.

could mean anything from your windshield washer fluid is low to a bulb is out on the car..im pretty sure its just a warning light, u have to start up the power in the car (ACC) but not actually turning the engine..then use the button on the end of the blinker wand to access the "check control" this should tell you whats up

Its the Engine Management light. Yon need to get the fault codes read.

Mine just started doing the same thing. the book says that the electronic transmission controler is in fault mode. I haven't found anything else out yet

Gear with ! (Automatic transmission)
Yellow warning lamp = The transmission is malfuctioning. Avoid heavy loads. All of the selector lever positions can continue to be engaged; in the forward drive positions, however, the vehicle will be operating in a restricted gear range only. Have the system checked as soon as possible.

warning lights normally Iluminate with RED Colour. Green Color iluminate indicator. I think that indicator connect with your Transmission System.

This light is for multi funtion automatic transmisson cooling system

Is that not the warning light for your cruise control?