The sentence was handed down in the Springs Regional Court.
The 37-year-old Gugulethu iInformal settlement resident had been in a relationship with the victim, but they recently ended the relationship.
Read: 19-year-old miraculously escapes her kidnappers
On November 23 he kidnapped her in Cuba Street, Slovo Park, and took her to his shack in the informal settlement.
Springs police spokesman Capt Johannes Ramphora says after Mohlala forced the victim into his car, he allegedly threatened to kill her.
The victim was rescued by her sister.
Read: Kidnapper will serve 10 years imprisonment
Ramphora says Mohlala was found guilty of kidnapping and sentenced to three years in prison, suspended for five years.
