Leaving car seat straps too loose is by far the most common error when the weather turns cold, says Jennifer Hoekstra, safe kids coordinator at Spectrum Health Helen DeVos Children’s Hospital.

“Many parents don’t realize their children should not wear puffy coats or snowsuits in car seats and that adding this bulk between the harness straps and the child does not get the straps tight enough,” she says.Three images are shown to explain how to place a child into a car seat.

Every extra layer can bring a false sense of tightness.

A car seat’s harness straps should be snug against a child’s regular clothing. Car seats are designed to protect children, but only when they are used correctly.

Hoekstra offers these tips for car seat safety this winter:

  • Be sure your car seat is installed tightly, not moving more than one inch from side to side, or front to back.
  • Check to see that your car seat is installed using either a locked seatbelt or the latch system. You should not use both systems at the same time.
  • Doublecheck that the harness straps are tight enough. Make sure you can’t pinch any excess webbing at the child’s shoulders when they are wearing everyday clothing.
  • Be sure the car seat is appropriate for the age, height and weight of your children.
  • Get your car seat inspected by a nationally certified child passenger safety technician. (Check safekids.org or cert.safekids.org)

Tips to make securing your kids a little bit easier:

  • Use blankets over children (after they are properly buckled in) instead of big bulky coats.
  • Put your child’s coat on backwards after buckling in.
  • Remove big boots in the car seat. This helps keep the vehicle seat clean and allows kids to be more comfortable.