Diono Manuals & User Guides

Diono is a prominent American brand dedicated to child safety and family travel solutions, originally established with a focus on innovation and engineering excellence in Seattle. Known specifically for their 'made of Seattle' spirit, Diono revolutionized the industry with the Radian® series—the original three-across all-in-one convertible car seat. Their products feature full steel cores and are designed to extend rear-facing use, keeping children safer for longer.

Beyond convertible car seats, Diono offers a comprehensive range of belt-positioning boosters, strollers, and car accessories designed to simplify journeys for modern parents. With a commitment to safety standards that often exceed regulations, Diono supports families from birth through the booster years.

• How do I register my Diono car seat?

  You can register your car seat online at the official Diono product registration page using the model number and manufacturing date found on the product label. Registration ensures you are notified in case of a safety recall.

• When does my Diono car seat expire?

  Diono car seats typically have an expiration of 8 to 10 years depending on the model. Always check the manufacturing label on the side or bottom of your specific seat for the exact expiration date.

• Can I use my Diono car seat on an airplane?

  Diono convertible car seats used with the 5-point harness are generally certified for aircraft use. However, belt-positioning booster seats are not certified for aircraft as planes lack shoulder belts.

• Can I use a lap belt with a Diono booster seat?

  No, Diono booster seats must be used with a vehicle's lap and shoulder belt system. A lap belt alone does not provide sufficient restraint for a booster user.

• What should I do if my car seat is in a crash?

  In Canada, Diono requires replacement after any collision. In the US, they follow NHTSA guidelines which recommend replacement after moderate to severe crashes. Consult your user manual for specific criteria.