Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-Europe-9367723) -2016 - CRC - 10/9/1590 Seats and RestraintsISOFIX Child Restraint Systems Installation SuitabilityMass Group Class Size Fixture Vehicle ISOFIX PositionsFrontPassengerRear LeftPassengerRear CentrePassengerRear RightPassengerCarrycot F ISO/L1 X X X XG ISO/L2 X X X X0(up to 10 kg)E ISO/R1 X IUF X IUF0+(up to 13 kg)E ISO/R1 X IUF X IUFD ISO/R2 X IUF X IUFC ISO/R3 X IUF X IUFI(9 to 18 kg)D ISO/R2 X IUF X IUFC ISO/R3 X IUF X IUFB ISO/F2 X IUF X IUFB1 ISO/F2X X IUF X IUFA ISO/F3 X IUF X IUFIUF = Suitable for ISOFIX child restraint systems of universal category approved for use in the mass group.X = ISOFIX position not suitable for ISOFIX child restraint systems in this mass group and/or this size class.