Combi has issued recalled on the Coccoro, Zeus Turn and Zeus 360 convertible carseats for failure to meet harness test requirements.

Affected models are:

Combi Coccoro
Model Number: 8220
Manufacture Dates: January 6, 2009-December 5, 2012

Combi Zeus Turn
Model Number: 8815
Manufacture Dates: July 15, 2007-March 25, 2009

Combi Zeus 360
Model Number 8836
Manufacture Dates: February 25, 2009-May 24, 2012

The model number and manufacture date can be found on the bottom of the carseat.

Coccoro DOM label  Zeus DOM label

When the harness webbing is tested independently of the carseat, it does not meet minimum breaking strength because of an embedded plastic button which keeps the buckle tongue from sliding down under the child’s bum. Newer models no longer have the embedded button.

According to Combi, the affected carseats are still safe to use until Combi can send replacement harnesses to registered owners because the carseats do pass motor vehicle safety standards (FMVSS 213) as a whole, but according to NHTSA, “In the event of a crash, a child may not be remain adequately secured, increasing the risk of injury.” (sic)  What does CarseatBlog advise? FMVSS 213 requires a minimum strength of 11,000N (roughly 2,473 lbf) before the harness webbing breaks on a carseat. How much force does a 33 lbs. child apply in a 30 mph crash to the webbing (33 lbs. is the uppermost rear-facing weight limit of the Coccoro and both Zeus seats)?  An estimate often used by technicians is child weight (33) times speed (30)  = roughly 990 lbs, which is a far cry from 2,473 lbs force (11,000N). We prefer to do the basic math estimate for you and let you, as the parent, decide whether you want to follow Combi’s advice or NHTSA’s.

For more information on this recall, see Combi’s recall notice for more information and how to register your Combi seat if you haven’t yet.