The rental car company has until May 22 to negotiate a financing strategy.
The anti-NRA backlash since the Florida school shooting has pushed more than a dozen large U.S. companies to cut ties with the gun rights group.
The company says its third-quarter results show it is on "the right strategic path" with a turnaround plan that has included cutting its rental fleet.
The stock rises more than 8%, recouping some of the losses it suffered after Hertz reported disappointing first-quarter results.
