Verified answer

From the manual ........

"Powertrain malfunction - if on, this light shows that the powertrain has been damaged and the car needs to be serviced as soon as possible."

Ignore the Yanks' answers about tyre pressure - the light you describe means a powertrain malfunction - either an engine or gearbox fault.

Have a look here:

http://www.autoevolution.com/news/how-to-read-the-...

(scroll down to no. 24).

You need to get the codes read to find out what the problem is.....

Tire pressure sensor. You have low air pressure in your tires

check your tire pressure