"I am glad to be here again and I am sure that I will not change again," the Finn told Germany's Sport Bild in Malaysia.
His mid-contract split from Ferrari at the end of 2009 was partly acrimonious, as he left F1 altogether and enjoyed a two-year sabbatical with rallying and Nascar exploits.
But, now 34, he told Sport Bild: "I will not drive in formula one for ever.
"I already said in my first time at Ferrari that this will be my last team," Raikkonen smiled. "As you can see, I have kept my word."
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