Hi my bugaboo chameleon's chassis (that is the white circles either side) seem to lock in and then they dont come out. I cant put the seat then in the upright position. Can you help?

Hi,

You can download the user manual and see the instructions from the site which I uploaded for you.
There are two model which is "clip model" and "wing nut model". Please click the link of your model and downlaod the pdf file.

If you need to download Acrobat Reader to open that pdf files you can click this link to download it.

Hope this helps.

Best wishes.

Hi,the best solution to your problem can be found in the user's manual of your stroller,however i suggest you carefully go through your manual,perhaps you don't have the manual to your stroller,you can download it for free at the bugaboo website.

Thanks and good luck