Note: Use caution because the side impact sensor is installed on the front side door guide channel support.
Remove the mounting bolts (2) of the front side door guide channel bracket.
Disconnect the side impact sensor wiring (3) from the front side door guide channel bracket.
Remove the front side door guide channel bracket and side impact sensor.
Replace the front door guide channel mounting bolt. When installing, tighten the guide channel bracket mounting bolts to the specified torque of 6.5 Nm.