Mazda 6 Service Manual: No.9 abnormal shifting

No.8 does not shift to fourth gear (4gr)

No.10 frequent shifting

Other materials:

Mazda 6 Service Manual: Gear Shift Indicator (GSI)
The Gear Shift Indicator (GSI) supports you to obtain optimum fuel economy and smooth driving. It displays the selected gear position in the instrument cluster as well as notifies the driver to change to the most suitable gear position corresponding to the actual driving condition. CAUTIO ...

Mazda 6 Service Manual: Supplemental Restraint System Components
(With Front Passenger Occupant Classification System) (Without Front Passenger Occupant Classification System) Driver/Front passenger inflators and air bags Roll-over sensor (some models), crash sensors, and diagnostic module (SAS unit). Seat belt pretensioners Front air bag sensor ...