Advanced Key Disassembly/Assembly

WARNING: This page is about a different car, the 2013 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

Pull out the auxiliary key.

Fig 1: Pulling Out Auxiliary Key
Insert a tape-wrapped flathead screwdriver into the notch in the advanced key and rotate it in the direction shown in the figure to open the advanced key.

Fig 2: Inserting Tape-Wrapped Flathead Screwdriver Into Notch In Advanced Key
Remove the battery.

Fig 3: Removing Advanced Key Battery
NOTE:
- If the O-ring has come off, put it back in place before installing the battery.
Fig 4: Identifying Advanced Key O-Ring
Install the new battery (CR1620) with the negative pole facing down.

Fig 5: Installing Advanced Key Battery (CR1620)
Align the upper and lower covers and close the transmitter.

Fig 6: Aligning Upper And Lower Covers
Insert the auxiliary key.

Fig 7: Inserting Auxiliary Key