1. Perform the following procedure for vehicles with seat belt warning.
(1) Disconnect the negative battery cable.
(2) Remove the front seat.
(3) Disconnect the buckle switch connector.
2. Perform the following procedure for vehicles without seat belt warning.
(1) Remove the console.
3. Remove bolt.

4. Install in the reverse order of removal.
Rear center seat belt removal/installation
Rear buckle removal/installationMazda 6 Service Manual: Smart Brake Support (SBS) (Some models)
The Smart Brake Support (SBS) system alerts the driver of a possible collision
using a display and warning sound if the radar sensor (front) and the Forward Sensing
Camera (FSC) determine that there is the possibility of a collision with a vehicle
ahead while the vehicle is being driven at abo ...
Mazda 6 Service Manual: Units
Conversion to SI Units (Système International d'Unités)
All numerical values in this manual are based on SI units. Numbers shown
in conventional units are converted from these values.
Rounding Off
Converted values are rounded off to the same number of places as the SI
unit value ...