Nissan Motor Co. notified the Land, Infrastructure and Transport Ministry on Monday that it is recalling 135,402 units of its Largo passenger car because their sunroofs might come off, the ministry said.

Twenty incidents involving Largo sunroofs were reported between September 2000 and this month in cars produced from April 1993 to May 1999, according to the ministry.

In an incident May 1, 2005, on a highway in Fukushima Prefecture, the sunroof of a Largo came loose and struck the vehicle behind it, the ministry said.

A Largo sunroof measures 52 by 114 cm and weighs 5.5 kg. The sunroofs are thought to have been improperly fitted. They have a tendency to loosen owing to vibrations and strong winds, and could come off, ministry officials said.