Britax Roundabout 55 Guide D'utilisation page 31

The Versa-Tether can indicate when the child seat has been in a
moderate or severe crash (see page 4) and replacement of the
child seat is necessary.
Figure 1 shows a tether
acceptable for continued use
(provided the child seat has not
been involved in a crash). The
colored stitching will be intact but
not visible from the back of the
seat.
Figures 2 and 3 show examples
of when the tether has been
damaged and is unacceptable for
continued use. If one or both of
the loops have pulled through the
back of the shell and/or any of the
colored stitching has ripped, the
child seat is no longer acceptable
for use.
IMPORTANT: Discontinue use of
child seat if it has been involved
in a moderate or severe crash,
regardless of whether the loops
have pulled through the back
side of the shell and the colored
stitching has been ripped.
Child Seat Functions
1
2
3
29