Mazda 6 Service Manual: No.4 hard to start/long crank/erratic start/erratic crank

No.3 will not crank

No.5 engine stalls-after start/at idle

Other materials:

Mazda 6 Service Manual: Heated Steering Wheel (Some models)
The grips on the left and right of the steering wheel can be warmed up. The ignition must be switched ON. Press the switch to turn on the heated steering wheel. The heated steering wheel operates for about 30 minutes and then turns off automatically. The indicator light illuminates when the h ...

Mazda 6 Service Manual: Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS)
The Lane-keep Assist System (LAS) & Lane Departure Warning System (LDWS) alerts the driver that the vehicle may be deviating from its lane and it provides steering assistance to help the driver stay within the vehicle lanes. The Forward Sensing Camera (FSC) detects the white lines (yellow l ...