March 13 (Reuters) - Nissan Motor Co is recalling five 2013 model year vehicles, including top sellers Altima and Sentra, because the front passenger airbag may not deploy in a crash, the automaker told U.S. regulators.
The models in the recall are Nissan's Altima, Sentra, Pathfinder and Leaf as well as Infiniti JX35, it said on Wednesday.
Nissan did not supply the number of vehicles involved in the recall, or when they were manufactured. The reported recall affects only models sold in the United States. Nissan did not say whether vehicles in other countries will be recalled.
Sensors that determine if a passenger is sitting in a seat may not have met specifications and do not detect a rider, the National Highway Traffic Safety Administration (NHTSA) said. If a crash occurs and no passenger is detected, the air bag may not deploy.
The recall is expected to begin next month.
Documents filed with the NHTSA did not say whether any injuries or accidents have occurred as a result of the potential defect.
Nissan determined a recall should be conducted on Feb. 21, two months after the automaker noticed an increasing number of warranty claims from owners who said their airbag detection dashboard warning was lit, according to documents filed with the NHTSA.
Also, Nissan is recalling about 400 Sentras made from Sept. 11 to Oct. 4 last year because fuel tanks were not properly sealed. This may lead to a small leak of gasoline when the tanks are filled, Nissan told the NHTSA.