According to WREX, University of Michigan researchers say thick winter clothing could lead to the car seat straps not being tight enough to keep the child securely in the seat. Researcher Miriam Manary told WREX that the harness clip should be at armpit level, and parents should not be able to pinch any webbing at the shoulder.

A child in a car seat with loose straps is at greater risk of being ejected from the seat, which could lead to serious injury or death.

To keep a child warm in the winter while in the car, a jacket or blanket can be draped over the child.

Safety experts recommend all car occupants remove bulky jackets while in a moving car.

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Ceudy Gutierrez reads a book to her 2-year-old son, Matias, at their home in Buford, GA, on Tuesday, Nov. 18, 2025. Ceudy Gutierrez is struggling to make ends meet for herself and her three young kids following her husband’s ICE arrest earlier this fall. (Miguel Martinez/ AJC)

Credit: Miguel Martinez-Jimenez