NIckle here is the link to the 2010 CREP testing which is generally accepted to be the national standard for car seat ratings....the Unity has dropped to one star, which is the lowest rating possible.

http://www.racv.com.au/wps/wcm/conne...adffba5b644aff

And appletree deifintely contact Britax, they have excellent customer service and I would imagine replace your faulty car seat, giving you a nice new one to pop on ebay!!!!