People are just realizing how to activate a secret function in their cars that makes it much more responsive

A CAR expert has revealed a button hidden in vehicles of a particular brand that completely transforms the driving experience.

The TikTok account run by auto specialists and enthusiasts with CarBuzz has over a million followers who are enlightened by the vehicle-related content shared on the page daily.

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A pro behind the page posted a video informing CarBuzz (@carbuzz.com) followers of how to turn a function on that changes how Nissan cars respond to a driver's handling.

In the caption, hashtags were included like #howto, #cars, #carsoftiktok, and #learnontiktok.

The video featured a man behind a steering wheel.

He said that, if you drive a Nissan, your car has a mode that you may not even know about.

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"Reviewing cars is my job and, for a while, I did not know that Nissans had this Sport Mode because it's just in the craziest spot," he explained.

The auto pro showed different areas inside the car that he initially figured the secret button might be like the dashboard setting display.

He showed viewers an area to the left of the steering wheel with a function that heats it.

The sports mode button wasn't near the transmission, either.

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"It's actually on an unmarked button, there's literally no label to it, right here on the shifter," he said pointing to a control feature right behind the gearstick with just one line on it.

"If you have a Nissan, look for this button on your shifter."

He showed viewers how to know that it's been activated.

"When you put it in sport mode, you're gonna get a little, itty bitty 's' next to the 'd,' and that is the only way that you can know it."

That visual signal of proof shows on the dashboard menu right beside the D that indicates that your car is in the driving gear.

You should also feel the difference immediately.

Activating the sports mode makes the car more responsive to the driver.

The function changes the settings of certain components in your car like an increased throttle response and revs.

The sport mode also tightens steering and delays the transmission shift points.

The Car Buzz video has been liked over 30,000 times.

A TikToker commented: "I have a 2018 Nissan Sentra. I do have a 'sport' mode button."

They went on to ask: "But what does it actually do? I always keep it in 'Eco' mode saves gas."

The CarBuzz pro said: "Normally just drops the gear ratio to let it rev more."

For those who are serious about saving on fuel, it may not be in your best interest to use sport mode too often.

The performance gear enhancer is great as it allows you to switch between different driving modes, which allows you to get the most out of your car.

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But a major drawback of the function is that it reduces fuel economy, according to The Honest Mechanic.

The car experts noted that it isn't bad for your car at all when used for short periods but it will wear down your engine more quickly than regular driving and uses more gas.