How old and how tall do you have to be to sit in shotgun in mi?

In Michigan, a child must be at least 4 years old and weigh 40 pounds to sit in the front seat. However, the best practice is to keep children in the back seat until they are 13 years old. There is no specific height requirement, but children should fit properly in the seatbelt to ensure safety. Always consult local laws for the most current regulations.