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Everything you need to know about Car Seat Safety in Canada

Everything you need to know about Car Seat Safety in Canada

Car Seats
Keeping your children traveling as safe as possible is our number one focus here at Diono. Our team has put together this useful blog to give you a great overview of the things you need to know about Car Seat Safety in the Canada.

At Diono we understand that all families are different, but there is a car seat for every single one. The importance of choosing the right car seat is unparalleled and using the right car seat for your baby or young child is found to reduce the risk of death or serious injury by 70%. Whether you’re choosing your first infant carrier, upgrading to an all in one convertible car seat or graduating to a booster Diono recommends that you visit trusted sources such as Transport Canada to become educated about what is right for you and your family. Upon purchasing any car seat, be sure to study the instruction manual and any other resources provided so that you’re confident in installing and using your car seat.

This is a useful guide from Centres for Disease Control and Prevention to help you choose the right car seat.


There are many things to consider when selecting your car seat. Since 1999 Diono has put the safety and well-being of children first, and we have continued to advocate child safety. In 2006 when we launched the Radian®, the original 3 across all-in-one convertible car seat we recommended rear-facing for as long as possible. That message is as important to us today as it was then.

As recommended by child passenger safety experts and national independent regulators, Diono recommends that all children should travel in their car seats following the guidelines below:

  • A child should be rear-facing as long as possible, ideally to 22.7 kg
  • After rear-facing as long as possible move to forward-facing with 5-point safety harness ideally until 29 kg
  • After your child reaches 29 kg graduate to high back booster secured using the adult seat belts until 54 kg

(Please consult your car seat’s instruction manual to learn the weight and height restrictions for your car seat as these are different for each manufacturer)

We commit to recommending this not only to our customers but to users of any car seat, by checking the weight and height limitations for each mode of their seat from birth to booster. The Diono 2020 Radian® range features a 5-point harness and Safe Stop®* device which, when forward-facing, absorb and distribute the force of impact.

To learn more about proper harnessing, users should consult their manufacturer’s seat manual.

To view DIono FAQs see here. To view Diono manuals see here.

*Safe Stop® is suitable for use when forward-facing up to 18 kg.

Why rear-facing for longer?

We’ve collected some figures and statistics that highlight the benefits and importance of rear-facing, which you can read here. Extensive scientific data has been studied and collected to support rear-facing, notably regarding children’s spinal development. Although there are recommendations out there stating age 2 is appropriate to switch to forward facing, studies have found that even at age 3 there is only a 50% chance of a child’s vertebra reaching its full strength.

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Diagram shows dissipation of energy on impact when a child is rear-facing


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Diagram shows dissipation of energy on impact when a child is forward-facing

This research, combined with our ongoing commitment to safer travel for child passengers, means Diono is continuously reviewing and updating our range of all-in-one convertible car seats and boosters to meet the very latest regulations and advice.

All Diono 2020 Radian® models can be used rear-facing for even longer up to approx. 4 years (22.7 kg).

You can learn more about the safety specifications of the Radian® Series here.

When we launched our latest Radian® models, the Radian® Q Series, we introduced Safe+® Engineering; a combination of rigorous testing and safety features to exceed our existing safety standards. Using our original American Engineering alongside the latest European Side Impact Technology, our team created an all-new 12 position headrest to improve head containment in the event of a collision, and introduced the Safe+ anti rebound bar that improves rear facing performance by 50%

We continued to test Radian® Q Series over and above national federal standards, as we do all Radian® models, with additional testing exclusive to the Q Series including roll over and rear impact testing. To learn more about Safe+® Engineering, see here.

When your child has outgrown the weight, height or size limits of their all-in-one convertible seat you will need to decide whether your child travels in a high back or backless booster. Diono recommends all children should travel in a high back booster until 54 kg, or as otherwise stated by the user manual. If a high back booster is not a practical option, a backless booster seat is better than no booster seat.

If you’re ready to consider a booster seat, here are the key features to take into account

  1. Portability or protection – high back boosters offer head and shoulder support and protection but will mean the seat weighs more than a lightweight backless booster.
  2. Does it convert? – You may wish to choose a high back booster that converts to backless. Diono does not recommend travelling in a backless booster unless the passenger is over 54 kg.
  3. Belt Positioning vs Harness – if your booster does not have harness, please consider if your child is ready to independently buckle themselves in using the seatbelt properly

Diono designed and engineered the all-new Monterey® 4DXT so that a parent or caregiver could have a single booster seat that fits a child until 120lb. With more than 23 improvements over the Monterey® XT and class-leading side impact performance through the use of multiple layers of side impact protection, the Monterey® 4DXT has become another Diono favourite

If you have any questions, please call our customer service team on 866-954-9786. They can give you any advice that you need about Diono products. We also have trained CPSTs as part of our team if you would like to speak to one.

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