Always use the automatic locking mode to keep the child-restraint system from shifting to an unsafe position in the event of an accident. To enable seat belt automatic locking mode, pull it all the way out and connect it as instructed on the child-restraint system. It will retract down to the child-restraint system and stay locked on it. See the section on child restraint.
Emergency Locking Mode
Seat BeltMazda 6 Owners Manual: Rear seat removal/installation
4SD
1. Remove in the order indicated in the table.
2. Install in the reverse order of removal.
5HB
1. Remove in the order indicated in the table.
2. Install in the reverse order of removal.
Remote wire removal note
1. Turn over the trunk floor mat.
2. Remove the case.
3. Remove the ...
Mazda 6 Owners Manual: Contact Authorized Mazda Dealer and Have Vehicle Inspected
If any of the following warning lights or the indicator light turns on/flashes,
the system may have a malfunction. Contact an Authorized Mazda Dealer to have your
vehicle inspected.
...