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 the battery to set the battery.
4. Align the front and back covers and snap the transmitter shut.
Battery specification Lithium CR2025 × 1
Note

Door lock timer unit id code change
Transmitter battery inspectionMazda 6 Service Manual: Traffic Sign Recognition System (TSR) (Some models)
The Traffic Sign Recognition System (TSR) helps prevent the driver from overlooking
traffic signs, and provides support for safer driving by displaying traffic signs
on the active driving display which are recognized by the Forward Sensing Camera
(FSC) or recorded in the navigation system whil ...
Mazda 6 Service Manual: Tires
For reasons of proper performance, safety, and better fuel economy, always maintain
recommended tire inflation pressures and stay within the recommended load limits
and weight distribution.
WARNING
Using Different Tire Types: Driving your vehicle with different types
of tires is dangerous. I ...