XR4Tim |
04-01-2013 08:34 AM |
From the TSB:
"Porsche has found that certain vehicles may not fully comply with a part of Federal Motor Vehicle Safety Standard (FMVSS) 208 regarding the use of the seat belt locking feature. This locking feature is used when installing a child seat in the rear outboard seating positions. A small number of non-LATCH equipped child seats cannot be installed as required by FMVSS 208, because they have a very short belt routing path. Depending on the child car seat used, it is possible that the outer rear three-point belts do not meet the US specification with regard to securing child car seats. To comply with this US specification, an additional belt strap holder must be installed on the two outer rear three-point belts on affected vehicles."
Essentially, the inertia lock doesn't work unless the belt is pulled out a certain distance. The belt strap holders (Cowboy Belt Buckles) take up some of that slack so that the inertia lock will still work with child seats.
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