Grosjean hired by Lotus as back-up driver
The 24-year-old, who failed to register a point in his seven previous Grand Prix when he teamed-up with Spain's two-time world champion Fernando Alonso at Renault in 2009, said he was delighted to be given another chance.
"2011 will be my comeback year with a third driver spot at Lotus Renault and a whole season in GP2 and GP2 Asia with the Dams team," said Grosjean.
"To be third pilot… allows me to gain a huge amount of experience, to be in the paddock, to see people, and to understand what I was lacking in my first Formula One experience.
"Now my idea is to be a race driver in 2012," he told automoto.fr.
Grosjean will understudy for race drivers, Polish star Robert Kubica, who finished eighth overall last year, and Vitaly Petrov of Russia, who had a promising first season finishing 13th.