The 2007-2008 Nissan Altima sedan is the subject of a safety probe at the National Highway Traffic Safety Administration (NHTSA).
The federal agency is investigating whether a braking problem can lead to a loss of all braking ability in the popular family sedan.
The NHTSA is studying some 440,000 Altimas from the 2007 and 2008 model years. According to the agency, the Altima's brake master cylinder could have a tendency to leak, which could eventually cause a loss of braking power.
Some 20 complaints have been logged with the NHTSA, although no injuries have been reported.
A similar recall in the Nissan Sentra during the same model years affected about 180,000 cars.
If the agency determines a recall is in order, owners will be contacted by the manufacturer for free repairs.
[NHTSA via Yahoo]