The mother was found with the boy near Cincinnati and arrested.
Police have identified the suspect as Jennifer Ann Hemchak, who is the child's mother but does not have custody of him.
The Sandusky Police Department said the child was believed to be in immediate danger.
The alert was cancelled at 8:26 p.m.
"Police say D'Quai is 3'0", 30-35 lbs. with brown eyes and black hair.
Odessa Alexander was driving the vehicle when Jennifer ripped D'Quai from the auto seat. He was last seen wearing blue Nike sweatpants and a grey t-shirt with an emoji face on it; he has one earring in each ear and a band-aid on each leg.
White, 2015 Hyundai Sonata with a Florida license plate number of IWUM23. He was last seen wearing blue Nike sweat trousers and a gray T-shirt with an emoji face on it, multiple reports say.
The Erie County Sheriff's Office AMBER Alert was issued for a 4-year-old boy who was abducted by his mother Friday afternoon, reports say.
Jennifer was last seen wearing a dark colored jacket.
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