Sounds like one of the actuators in the heat/AC system. There are a couple threaded rods that have pieces that just snap onto them. If your heat and AC are working okay there is probably nothing wrong. The attache image shows the programmer and the two actuators visible behind the glove box.
If it is something else take a picture and post it here and we will see if it matches anything else.
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Friday, June 30th, 2017 AT 7:05 PM