Michigan’s car seat law has a structure that confuses a lot of parents because it uses both age and height as criteria — and they work differently. Children under 4 must be in a car seat in the back seat (if available), while children 4 through 7 who are shorter than 4’9″ must be in a booster or car seat. The part that trips people up: there’s no rear-facing mandate in the statute. Michigan relies on NHTSA best-practice recommendations for rear-facing but doesn’t codify a specific age or weight for it. That gap means parents have to look beyond the letter of the law to keep their kids safe. I’ve worked with families in Detroit, Grand Rapids, and the Upper Peninsula who were following the law to the letter but still putting their toddlers at unnecessary risk.
Michigan recorded 1,063 traffic fatalities in 2024 — a 3.5% decline from 1,101 in 2023 and the continuation of a downward trend from the 2021 peak. But Michigan still ranks among the top 10 states for total traffic deaths, and alcohol-involved crashes accounted for roughly 30% of fatalities. With over 300,000 crashes annually, Michigan roads carry real risk.
This guide breaks down every requirement in Michigan’s current child passenger safety law, explains the fines and enforcement rules, covers special situations, and answers the most common questions parents ask.
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Michigan car seat laws by age
Michigan’s child restraint statute (MCL § 257.710d) has a two-tier structure based on age:
Rear-facing (recommended through age 2+): Michigan law does not specify a rear-facing age requirement. However, Michigan State Police and the AAP strongly recommend rear-facing until at least age 2, and as long as the seat’s limits allow. Most modern convertible seats rear-face to 40–50 pounds.
Car seat in rear seat (under age 4): Children under 4 must be secured in a child restraint system in the rear seat of the vehicle (if available). This is one of the stricter provisions — it combines the car seat requirement with a mandatory back-seat requirement for the youngest children.
Car seat or booster (ages 4–7, under 4’9″): Children ages 4 through 7 who are shorter than 4’9″ must be properly secured in a child restraint system — which can be a harnessed car seat or a belt-positioning booster seat.
Seat belt (age 8+ or 4’9″+): Children 8 and older or taller than 4’9″ must wear a seat belt. All front-seat passengers must be belted, and all passengers under 16 must be belted in any position.
Back seat requirement (under 4): Children under 4 must ride in the back seat if one is available. After age 4, there’s no legal back-seat mandate, though safety experts recommend the back seat through age 13.
If you’re not sure which seat fits your child’s current stage, our best-rated convertible car seats guide covers every transition from rear-facing infant through booster-ready child.
Fines and enforcement
Michigan’s child restraint violations carry:
Fine: Up to $65 per violation.
Michigan’s child restraint law is a primary enforcement law — an officer can pull you over solely for observing an improperly restrained child under 8.
No points are assessed on your driver’s license for a child restraint violation in Michigan.
Special situations
Taxis: Michigan exempts taxis from child restraint requirements. However, the safest practice is always to use a car seat.
Rideshares (Uber/Lyft): Rideshare vehicles are not exempt from Michigan’s child restraint law. If you’re traveling with a child, bring an appropriate car seat.
Vehicles without back seats: If the vehicle has no rear seat, a child under 4 may ride in the front seat with an appropriate restraint, but the airbag should be deactivated for rear-facing seats.
Leaving a child unattended in a vehicle: Michigan law prohibits leaving a child under 6 unattended in a motor vehicle. Violation is a misdemeanor.
Smoking in a vehicle with children: Michigan does not have a specific law prohibiting smoking in a vehicle with child passengers.
Car seat replacement after a crash: No state law requires it, but NHTSA and all major manufacturers recommend replacing any seat involved in a moderate-to-severe crash.
What to do if you get a ticket
1. Get the correct car seat immediately. Ensure it matches your child’s current age, weight, and height.
2. Get it inspected. Michigan Medicine’s C.S. Mott Children’s Hospital in Ann Arbor and Safe Kids Michigan coalitions across the state offer car seat inspection events. Many Michigan fire departments also offer inspections. You can find a certified technician through the NHTSA technician locator.
3. Bring documentation to court. Proof of compliance can help at your hearing.
If you need a free or low-cost car seat, check our guide to free car seats in Michigan for verified programs.
Frequently Asked Questions
When can my child sit in the front seat in Michigan?
Michigan law requires children under 4 to ride in the back seat when one is available. After age 4, there’s no legal back-seat mandate, but safety experts recommend all children under 13 ride in the rear seat.
What is the fine for a car seat violation in Michigan?
Up to $65 per violation. No points are added to your license.
Does Michigan require rear-facing until age 2?
No — Michigan’s statute doesn’t specify a rear-facing age requirement. However, Michigan State Police and the AAP strongly recommend rear-facing until at least age 2. Our best-rated convertible car seats guide includes seats that rear-face to 40–50 pounds.
Are taxis exempt from car seat laws in Michigan?
Yes — taxis are exempt. Rideshare vehicles (Uber, Lyft) are not exempt. Always bring a car seat when traveling with a child.
Can I use a secondhand car seat in Michigan?
Michigan doesn’t prohibit used car seats, but verify the seat hasn’t been in a crash, isn’t expired, isn’t recalled, and has all original parts. Check the NHTSA recall database before using any secondhand seat. Our guide on what to do with old car seats covers safe disposal options.
Where can I get my car seat inspected in Michigan?
C.S. Mott Children’s Hospital in Ann Arbor offers inspections. Safe Kids Michigan coalitions in Detroit, Grand Rapids, Lansing, and other cities hold regular events. Many Michigan fire departments and police stations also offer inspections. Find a certified CPS technician near you through NHTSA’s locator.
