Boy, is she in trouble.

A 16-year-old Ohio girl not only swiped her mom’s car to go on a 500-mile road trip to the Big Apple — she also totaled the vehicle when she got here.

Trinity Goodwin was arraigned in Manhattan Criminal Court on Sunday, without any sign of her parents.

The teen was so clueless that she couldn’t even remember exactly where she had abandoned her mom’s wrecked black 2009 Pontiac G6, authorities said.

“Oh s–t,” she sheepishly exclaimed when NYPD cops arrested her Saturday night, according to officials. “I don’t know the exact street where I left the car.”

Goodwin and pal Hayley Flowers, also 16, terrified their families when they disappeared from Lancaster, Ohio, last Monday.

But the pair then posted a Facebook photo of themselves near the McDonald’s in Times Square, and Flowers started texting her older sister, Brooklyn.

Brooklyn Flowers, 18, told The Post on Sunday that after the troubled teens “totaled the car . . . they sent pictures of someone else’s car.” She said her sibling didn’t know anyone in New York, but she thought Goodwin might.

“[Goodwin] ran away a couple months ago with an older man who was in his 50s, so this isn’t new,” Brooklyn Flowers said.

“They’re not happy about it,” the 18-year-old said, noting that her sibling was “definitely grounded.”

Goodwin and Hayley Flowers were tracked down after Flowers’ mother, April, saw the teens’ photo on Facebook and started calling police precincts Thursday.

The worried mom finally got through to an officer at the Midtown North station house, but by the time cops got to the Mickey D’s on Thursday evening, the teens were gone.

After searching to no avail Friday, officers finally sent Hayley Flowers a Facebook message, and she responded.

The girls eventually agreed to turn themselves in at a T-Mobile store in Times Square on Saturday evening.

Hayley Flowers was picked up by her irate parents early Sunday, while Goodwin was arraigned on the charge of co-possession of stolen property.

The bored-looking Goodwin was held without bail after it was revealed that Ohio had issued another warrant for her arrest for violating probation related to a previously sealed case.

She will be back in court Tuesday and eventually head back to Ohio to face charges, authorities said.

April Flowers posted on Facebook on Sunday, “We do not know why this happened and right now that is the furthest thing from our minds as this has been one of the worst weeks of our lives and we are extremely happy that we found her in New York!”

During the girls’ time on the lam, the National Center for Missing and Exploited Children had issued an Amber Alert for them.

Additional reporting by Daniel Prendergast

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