Renting a Car in Japan with Car Seats: Family Tips for 2026
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When visiting Japan with kids, renting a car and using car seats is legally required for children under 6 years old. Ensuring your little ones are safe can help avoid unexpected detours—like a trip to the police station over a missing car seat. Here’s what you need to know about renting a car in Japan with car seats to ensure a smooth journey.
- Children under 6 must use a car seat.
- Car seats are available from major rental companies.
- Prices range from ¥550 to ¥1,650 (as of 2026; confirm on the official site).
- Advance reservation is highly recommended.
- Installation responsibility lies with the renter.
Understanding Car Seat Regulations
In Japan, the law mandates that children under 6 must be secured in a proper child restraint system. If you’re bringing your own car seat, ensure it complies with Japanese regulations. While there are no fines for not using a car seat, drivers can face a penalty of one point on their license. According to the Ministry of Land, Infrastructure, Transport and Tourism, proper restraint is crucial for child safety. After age 6, it’s advisable to continue using a booster seat until your child reaches about 150 cm (approximately 4 feet 11 inches) tall to ensure the seatbelt fits properly.
Rental Companies and Car Seat Options
Most major car rental companies in Japan offer a variety of child seats. Here’s a quick overview of what you can expect from some popular providers:
| Rental Company | Child Seat Type | Price (JPY) |
|---|---|---|
| Toyota Rent-a-Lease | Baby Seat (0-1 year), Child Seat (1-4 years), Junior Seat (4-12 years) | ¥1,650 (baby/child), ¥1,100 (junior) |
| Nissan Rent-A-Car | All types available | ¥550 per 24 hours |
| Orix Rent-A-Car | Baby/Child/Junior Seats | ¥1,100 |
| Times Car Rental | Baby/Child Seats | ¥1,100; Junior Seat: ¥550 |
| Nippon Rent-A-Car | Baby, Child, Junior Seats | ¥1,100 |
Prices are generally per rental period, which can be beneficial for longer trips. For instance, both Toyota and Orix offer a flat rate, allowing you to budget more effectively for your week-long rental.
How to Reserve a Car Seat
To avoid any last-minute surprises, it’s best to reserve your child seat when you book your rental car. Here are a few tips to help you secure the right seat:
- Reserve Early: Child seats can be limited, especially in peak travel seasons.
- Specify Child's Details: Provide your child's age, weight, and height to ensure you get the right seat type.
- Check Availability: Confirm that the branch you’re renting from has the seats you need.
Most major companies allow online or phone reservations. While some places may allow same-day reservations, availability can’t be guaranteed, especially during busy periods like the cherry blossom season in spring or the summer vacation months.

Installation and Safety Tips
Even though rental staff might offer assistance, the responsibility for proper installation falls on you. Familiarizing yourself with the car seat before hitting the road is essential. Look for instructions on the seat itself, or check out online resources such as videos that demonstrate proper installation techniques. Many parents find watching a quick tutorial video helpful!
In emergencies, there are exemptions to the car seat rule, such as when transporting a sick child. However, for regular travel, sticking to the law is crucial for everyone’s safety. It's a good practice to consult your child’s pediatrician if you have specific concerns about car seat safety.
FAQ
Do I need to rent a car seat in Japan?
If your child is under 6 years old, yes, it’s mandatory to use a car seat while driving in Japan.
How much does it cost to rent a car seat?
Costs can range from ¥550 to ¥1,650 depending on the type of seat and rental company (as of 2026; confirm on the official site).
Can I bring my own car seat?
Yes, but ensure it meets Japanese safety standards. It's advisable to check the specific regulations regarding foreign car seats.
How do I install the car seat in my rental car?
Rental staff can help, but it’s your responsibility to ensure it’s installed correctly. Check for installation instructions or watch online videos.

What if I need a car seat for an older child?
Children over 6 should use a booster seat until they reach 150 cm tall for safety.
Can I reserve a car seat in advance?
Yes, it's highly recommended to reserve your car seat at the same time you book your rental car.
Are there any exemptions to the car seat rule?
Yes, exemptions exist for emergency situations but should be avoided in regular travel.
Where can I rent baby gear in Japan?
You can rent a stroller, car seat & baby gear in Japan through various services.
Traveling in Japan with kids can be an exciting adventure, and ensuring their safety with proper car seats is crucial. Getting familiar with these regulations and rental options will help you have a smooth journey.