He again stood in for Grosjean at the season finale in Abu Dhabi. Fittipaldi qualified 19th and was elevated to 17th on the grid due to other drivers collecting penalties. In the race, he suffered a slow pit stop and again finished last of the running drivers in 19th place. After the race, Fittipaldi stated that he would "like to still keep a foot in Formula One" as a reserve driver in . In February 2021 it was confirmed that he would remain in his role as a Haas test and reserve driver for the 2021 season.