Kendall Jenner has been slammed for being a Dangerous driver.

The 'Keeping Up With The Kardashians' star has only been driving for nine months but she is allegedly such a bad driver that one witness claims to have been almost forced off the road by Kim Kardashian's little sister.

A concerned Los Angeles commuter told America's Star magazine: ''The car was all over the lane. I thought the driver was intoxicated! When I pulled up alongside her car, I realised it was Kendall Jenner. She was texting and driving!''

The startled witness claims to have been nearly sideswiped by Kendall's $90,000 black Range Rover, which was a Sweet Sixteen birthday gift she received from her parents, Bruce and Kris Jenner.

The source revealed: ''I was trying to get off the freeway, and I couldn't merge into the right lane because [Kendall] wasn't paying attention and her car would have drifted into mine.''

While Jenner didn't cause an accident, she did break a serious Traffic law as texting and driving is prohibited in California.

In fact, drivers under 18 aren't even allowed to use a cell phone with a hands-free device.

Apparently getting caught for her infraction didn't seem to bother the teenage reality star.

The insider continued: ''When she realised we were taking pictures of her, she gave me a dirty look but continued texting, laughing with her friends in the car.''