Child seat with, airbag, pretensioner suppression

A child seat (56) detecting means comprising:

• a sensor (141) for detecting whether a child seat (56) is mounted on a passenger seat (14, 15), wherein the sensor includes a Hall sensor;
• a controller (40), wherein, in response to a signal from the sensor (141), the controller is configured to prevent activation of a pretensioner or belt tightener (65) from tensioning a seat belt or webbing (55) and/or prevent an inflator (34) from expanding an airbag (26) when the child seat (56) is detected on the passenger seat (14, 15);
• a seat belt retractor (48) that is changeable between an ALR mode and an ELR mode, wherein the seat belt retractor (48) is switchable into the ALR mode by withdrawing a length of the seat belt or webbing (55) from the seat belt retractor (48), which causes a cam wheel (126) to rotate in a clockwise direction from an ELR position to an ALR position,
• wherein rotation of the cam wheel (126) causes a first leg (136) of a cam follower (132) to exit a first detent (170) formed in a cam surface (144) and enter into a second detent (178) formed in the cam surface (144), and
• wherein a second leg of the cam follower includes a magnet (139) and the magnet is moved operationally closer to the sensor (141) in the ALR position than in the ELR position.