Five stars is the highest rating.
The 2015 Sentra earned four stars in the front crashworthiness test, five stars in the side crashworthiness test and four stars in the rollover crashworthiness test.
The Sentra is on sale now at Nissan dealerships.
Standard safety equipment on the 2015 Sentra includes six airbags, antilock brakes and vehicle dynamic control with traction control.
The car's front structure, A-pillar and door sill were modified to reduce intrusion in small overlap crashes. In addition, the side curtain airbag was lengthened to protect the driver's head.
Edmunds says: Car shoppers should note that the 2015 Chevrolet Cruze, Honda Civic and Toyota Corolla sedans all earned the top five-star safety rating from NHTSA.