Cybex Sirona manual

View the manual for the Cybex Sirona here, for free. This manual comes under the category car seats and has been rated by 37 people with an average of a 8.4. This manual is available in the following languages: English. Do you have a question about the Cybex Sirona or do you need help? Ask your question here

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Question and answer

How is it the right way to put the newborn inlay? Like I did in this photo? Thanks!

3 comments

The newborn insert should be placed in the most reclined position facing the rear for newborns and infants who are not yet able to sit up on their own (up to around 1 year). Please ensure that the seat shell locks into place with a noticeable clicking sound.

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@Diman Denisa this is not the right way to insert the inlay. You have to pass the black part inside the back hole and detach the head cover, then the grey part stay in the back of the baby

Can I detach the seat from the Isofix base? In order to remove crumbs, sand, etc., as they sound like sandpaper when rotating.

Hello. How do I remove the cover from a Cybex Sirona 360 car seat in order to be able to wash it? Thank you.

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My seat is installed in the rear facing position behind the passenger seat. I rotated the seat to put my baby in and it tipped/leaned over. I resecured the seat belt through the anchors and ensured no more than 1” of movement again and haven’t tried putting my baby in again for fear of it tipping again or coming lose while in use. I noticed when I rotate the seat to put baby in, the load lead goes from green to red before I even put her in. Indicating it is no longer touching the floor of the vehicle. Is this normal? It does go back to green once I rotate the seat back to rear facing position with no baby. Is there more I can do to ensure the seat won’t tip when I put baby in?

1 comment

When installing the Cybex Sirona car seat in the rear-facing position, it is important to make sure that the seat is correctly secured and does not tip or lean over. If the load leg indicator on the seat changes from green to red when you rotate the seat to place your baby in it, indicating that it is no longer touching the floor of the vehicle, this is not normal. To make sure that the seat does not tip when you put the baby in, please follow these steps: 1. Make sure that the seat belt is securely fastened through the anchors and there is no more than 1 inch of movement. 2. Check that the load leg is properly extended and touching the floor of the vehicle. The load leg provides additional stability and helps prevent tipping. 3. Adjust the recline angle of the seat according to the instructions. 4. Double-check that the seat is correctly installed and all safety features are engaged. If you have followed these steps and the seat still tips or leans over, please contact customer service for further assistance.

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Hello, I bought a Cybex Sirona about 2 years ago. I now want to turn the seat forward-facing, but I can only turn it sideways. Is there anything special I need to do to turn the seat to face the front, or could there be something wrong with the seat? Regards, Emma Christensen (41548242)

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"I removed the upper straps of the Cybex Sirona while washing it. Now when I wanted to reinsert them as a 5-point harness, I unfortunately did not remember how and where they were attached and there are now two long straps with clasps lying in the seat. Can someone help me and tell me how to properly reinstall them so that my little princess can ride safely again?"

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Hello, I have released the belt of the Cybex Sirona to wash it. Now I have pulled out the lower belt for fixing it. It is now hanging in the seat and I cannot get it back behind the seat to reattach the belts. Is there a trick for this? Or do I have to unscrew the entire seat? Is that even possible? Thank you for your response!

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Help. Need to turn it forward-facing. I have "folded it up" and now want to turn it around, but it locks halfway!? So I can't get it turned around. What to do? Need it tomorrow, so can I get a quick answer? :o) Regards, Thomas.

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Hi, I was wondering if it's possible to use the Sirona 360 in a car without isofix? I can't find any information online about this. We have two Sirona 360 seats in our other car now, and we've bought an older car number 2 that doesn't have isofix. Do you have any other models of the same quality as the 360 that you can recommend? Best regards, Adeel Abdul

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Cybex Sirona specifications

Below you will find the product specifications and the manual specifications of the Cybex Sirona.

The Cybex Sirona is a car seat designed for children weighing between 5 and 65 pounds. The seat is mounted with ISOFIX, ensuring secure installation in the car. It comes equipped with an adjustable headrest, allowing the seat to grow with the child. The headrest can be easily moved with one hand, no rethreading is required. The Cybex Sirona also features side protection, aimed to lessen the impact of a collision from the side. This car seat is certified for use on airplanes by the Federal Aviation Administration (FAA), making it an ideal option for frequent fliers. The seat measures 23.9 inches in height, 18.3 inches in width, and 30.6 inches in length. The harness system can be adjusted without requiring to re-install the car seat, as it can be tightened and loosed with ease. The cover is made of high-quality fabric that is machine washable. The Cybex Sirona is designed with a magnetic buckle holder, making it simple to secure the child in the seat. The car seat is easy to install and use, thanks to the clear instructions provided. The Cybex Sirona is a versatile option for parents who want a safe and reliable car seat that can be used for multiple years.