The mirror folding button at Mitsubishi Outlander XL is pressed to the point (click and release without effort). Therefore, if the mirror button does not add up, it is better to contact the service. If the keys (mirrors) are also not managed, it is possible that there is a problem with the power of the mirrors. If the key is adjustable and the button is not present, it is most likely that when the door card was removed, they forgot the connector. Also, maybe stacids are on the contact board at the button. In this case, they need to be wiped with alcohol.