Mazda 6 Service Manual: No.2 mil illuminates

No.1 melting of main or other fuses

No.3 will not crank

Other materials:

Mazda 6 Service Manual: Operating Tips for Audio System
WARNING Always adjust the audio while the vehicle is stopped: Do not adjust the audio control switches while driving the vehicle. Adjusting the audio while driving the vehicle is dangerous as it could distract your attention from the vehicle operation which could lead to a serious accident. E ...

Mazda 6 Service Manual: Locking, Unlocking with Auxiliary Key
Turn the auxiliary key toward the front to lock, toward the back to unlock. To lock All doors lock automatically when the driver's door is locked using the auxiliary key. To unlock The driver’s door unlocks when the auxiliary key is turned briefly to the unlock position and then immediatel ...