Kylie Jenner Causes 3-Car Pileup 18 Days After Sweet 16

That didn't take long!

The youngest member of the Kardashian-Jenner clan, Kylie Jenner, hit a bump in the road — literally — just 18 days after ringing in her 16th birthday.

On Wednesday, Jenner was involved in a three-car collision while driving her brand new Mercedes G-Class SUV, worth an estimated $125,000, in L.A.'s posh Calabasas neighborhood.

According to TMZ, Jenner, who's the youngest daughter of Bruce Jenner and Kris Kardashian, rear-ended a Toyota who in turn hit the back of a Subaru SUV.

"There were no injuries, nothing illegal happened, no crime," the Los Angeles County Sheriff's station in Malibu/Lost Hills confirmed to omg!, though they would not say if Jenner, who is still a minor, was involved. "It was purely an accident and the drivers all exchanged information at the scene and one party left before the sheriff's department arrived."

Jenner has yet to confirm the reports, but did take to her Twitter Thursday to post some somber messages. "What do I have to do to not get bothered by something for one day," she said before adding an hour later, "I still shed a tear every once in a while."

While she may be feeling a bit blue, don't expect to see the teen in a less extravagant vehicle following the crash. The E! reality star's family members are big fans of the luxury Mercedes SUV. Kylie and her sister, Kendall, both shared photos of their fleet-like collection on Instagram.

The Kardashian-Jenner clan's fleet of Mercedes SUVs (Instagram)

[Related: See Photos From Kylie's Sweet 16 Party]

The 16-year-old, whose birthday was August 10, had an "Alice in Wonderland"-themed birthday bash at the AT&T Center in L.A. August 17 with celebrity attendees that included rumored boyfriend Jaden Smith, his sister Willow, "Glee" star Naya Rivera, and rapper Drake.

In a bit of foreshadowing, big sis Kourtney Kardashian tweeted, "Look out world! @kyliejenner is a licensed driver!" two weeks ago.