Radian 5 Lifetime Warranty Registration

Diono is proud to be the first car seat manufacturer to offer a lifetime warranty on Radian 5, covering the defined life of the seat which is 10 years. This new warranty reflects our dedication to build durable high quality products which keep children safe year after year.

The Diono Lifetime Warranty is available on the Radian 5 as a complimentary extension to the basic 1 year warranty. It covers manufacturing defects for the life of the seat, up to a maximum of 10 years.

To obtain a Lifetime Warranty, the car seat must have been purchased from a authorised Diono retailer and registration is required within 60 days of purchase or receipt as a gift by completing the below form.

For full terms and conditions click here

If you have already registered your purchase and wish to speak to our customer service team, please call +44(0)1827 310557 or email dionouk@diono.com


  • Your Name

  • Radian 5 Details

  • Your Address

  • Additional Information

  • Diono values your privacy and will not sell, share or make available in any way your name or contact information to any other company or party outside the Diono group. An automated confirmation will be sent to your email address. Please retain this for your records as it will be required should you ever need to make a claim on the warranty. Please note if you do not receive a confirmation email, you are not registered for the Lifetime Warranty. If you have any issues with registering, please contact our customer service team on +44(0)1827 310557 or email dionouk@diono.com
  • Dieses Feld dient zur Validierung und sollte nicht verändert werden.
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