1. Disconnect the negative battery cable.
2. Turn the seaming welt and weatherstrip over.
3. Remove the sunroof seaming welt. (vehicles with sunroof only)
4. Remove the A-pillar trims.
5. Remove the B-pillar upper trims.
6. Remove the C-pillar trims.
7. Remove the front and rear map light. (See FRONT MAP LIGHT REMOVAL/INSTALLATION.) (See REAR MAP LIGHT REMOVAL/INSTALLATION.)
8. Remove the sunvisors.
9. Remove the assist handle.
10. Disconnect the roof harness connector, remove the clip, and remove the connector.
11. Remove the fasteners.
12. Disconnect the front and rear drain hose.
13. Disconnect the rear washer hose (5HB).
14. Remove the hook holding the roof panel and remove the headliner.

15. Take the headliner off from the passenger-side door opening.
16. Install in the reverse order of removal.
Headliner
Shock absorbing pad removal/installationMazda 6 Service Manual: Rear Cross Traffic Alert (RCTA) (Some models)
The Rear Cross Traffic Alert (RCTA) system is designed to assist the driver in
checking the area to the rear of the vehicle on both sides while the vehicle is
reversing by alerting the driver to the presence of vehicles approaching the rear
of the vehicle.
The Rear Cross Traffic Alert (RCTA) ...
Mazda 6 Service Manual: Adjusting the Vents
Directing airflow
To adjust the direction of airflow, move the adjustment knob.
NOTE
When using the air conditioner under humid ambient temperature conditions,
the system may blow fog from the vents. This is not a sign of trouble but a
result of humid air being suddenly cooled.
The air ...