See also:

Removing the key blade
Removing the key blade 1 Slide the spring loaded catch to the side. 2 Pull the key blade straight out of the remote key. ...

Power door mirrors
Door mirror controls ...

Inserting the remote key
Holding the end of the remote key with the base of the key blade, insert the remote key into the ignition slot as shown in the illustration and press it in as far as possible (past the detent) ...