Hey DEBRAMEYER,
This does seem like a fault that may require some in lengthy diagnosis to solve.
The turn signals are controlled by the body control module.
One quick check I can think of is checking the connections on the Body control module (BCM).
Remove the trim panel on the right side of the centre console to access the BCM (includes fuse box) shown in picture attached.
Then follow the attached instructions to remove the BCM.
Unlatch and unplug the electrical connections and check for signs of overheating and/or corrosion to the contacts of the BCM connectors.
Let us know how you get on.
If you are unsure of anything don't hesitate to ask further questions.
Regards, Joe
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Saturday, March 23rd, 2019 AT 10:07 PM