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: Limitations to SRS Air Bag
In severe collisions such as those described previously in "SRS Air Bag Deployment Criteria", the applicable SRS air bag equipment will deploy. However, in some accidents, the equipment may not deploy depending on the type of collision and its severity. Limitations to front/near front collision ...

Mazda 6 Service Manual: To Temporarily Cancel
To temporarily cancel the system, use one of these methods: Slightly depress the brake pedal. (Manual transaxle) Depress the clutch pedal. Press the OFF/CANCEL switch. If the RESUME/ switch is pressed when the vehicle speed is 25 km/h (16 mph) or higher, the system reverts to the prev ...