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: Identification Numbers
Vehicle Information Labels
Vehicle Identification Number
The vehicle identification number legally identifies your vehicle. The number
is on a plate attached to the cowl panel located on the left corner of the dashboard.
This plate can easily be seen through the windshield.
Motor Vehicle Sa ...
Mazda 6 Service Manual: Wheel hub, hub spindle removal/installation
Caution
Performing the following procedures without first removing the ABS
wheel-speed sensor may possibly cause an open circuit in the harness if it
is pulled by mistake. Before performing the following procedures, remove the
ABS wheel-speed sensor (body side) and fix it to an appropri ...