Rental car company Hertz confirmed this week that it has started installing video cameras that face drivers inside some of its vehicles.

The cameras are "inoperable" currently, and are part of an upgrade to Hertz's "NeverLost" navigation system that started to be installed last year.

The nation's second largest rental car company said to CBS News that the cameras are not functional since the company doesn't have the technology to support an in-car video conference service and that when it does the "function" could only be activated by renters at their "sole discretion."

Drivers are not worried that the lens is a breach of their privacy, but Hertz is insisting the cameras were only added so occupants can interact with a customer service representative in the event of an emergency.

Hertz spokesman Rich Broome told CBS News that only three customers have complained about the cameras so far.  

"I immediately noticed the new NeverLost and I was completely shocked to see a camera built into the device looking at me," one customer wrote on the forum Flyertalk. "The system can't be turned off from what could tell. Further investigation revealed that the camera can see the entire inside of the car."

No one has asked for a different car yet because of a camera being inside their vehicle, but if they do have a problem with it they can switch to another car.

Just 20 percent of Hertz vehicles have cameras inside, according to the Daily Mail.

"We don't want anyone concerned that we're invading their privacy," said Broome. "We did not believe there was any cause for concern. I don't know we were thinking that anybody would have thought we would be recording them."

For now Broome said customers are becoming more "familiar" and "comfortable" with the video conferencing.

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