tuc tuc ZENIT Mode D'emploi page 36

HOW TO INSTALL THE SEAT FOR GROUP 0+ AND GROUP I
This seat can be clamped using 3-point anchor belts for adults or an ISOFIX system.
ISOFIX+TOP TETHER Three-point belt
Group I:
There are three support points (2 x Isofix anchors + 1 top tether).
Group 2/3:
ISOFIX + adult seatbelt or clamped using the adult belt
only. DO NOT USE TOP TETHER