I will provide an honest answer. I trust this will be appreciated on a Sunday. Please remember that a low rating PUNISHES me for being honest and that I receive nothing for my time until a positive rating is clicked.
the answer to your question "could it be the gear selector switch?? " is that yes, it could be the transmission position switch
this is not the only thing it could be, however.
Please let me know if you have further questions. Please do not forget to click a positive rating as this is the only way I receive credit for my answer, thank you. Best wishes with your vehicle.