Electrical System (Us): Terminals: Replacement

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

Use the appropriate tools to remove a terminal as shown. When installing a terminal, be sure to insert it until it locks securely.
Insert a thin piece of metal from the terminal side of the connector and with the terminal locking tab pressed down, pull the terminal out from the connector.

Courtesy of MAZDA MOTORS CORP.