Mazda 6 Owners Manual: Message Indicated on Display
If a message is displayed in the center display, take appropriate action (in a calm manner) according to the displayed message.
KEY Warning Light (Some models)
Take the appropriate action and verify that the warning light turns off.
...
Stop Vehicle in Safe Place Immediately
If the following messages are displayed in the center display , a vehicle system
may be malfunctioning. Stop the vehicle in a safe place and contact an Authorized
Mazda Dealer.
...
Other materials:
Mazda 6 Owners Manual: Transmitter battery replacement
1. Insert a small screwdriver into the slot and gently pry open the
transmitter.
2. Press the portion of the battery indicated by A and remove the battery.
3. Install a new battery (CR2025) into the front portion of the holder with
the positive pole (+) facing up. Press on the B portion of ...
Mazda 6 Owners Manual: Locking, Unlocking the Doors
NOTE
The system may not operate if you are too close to the windows or door
handles.
If the key is left in the following areas and you leave the vehicle,
the doors may be locked depending on the radio wave conditions even if the key
is left in the vehicle.
Around the dashboard
...