Hi,
Normally, a scan tool is used to prompt the control module. However, try this:
1. Turn the key off.
2. Disconnect the battery and remove the HVAC control module fuse.
3. Allow the vehicle to sit for approximately five minutes.
4. Reinstall the fuse and connect the battery.
5. Enter the vehicle and turn the key on. Don't try adjusting anything.
6. At this point, the control module should automatically recalibrate the system.
7. When you hear the actuators stop, turn the key off and then back on to see if that took care of the problem.
If it doesn't, then you will need a scan tool that can communicate with the HVAC control module. If you look at the attachments below, they provide the directions.
Let me know if this helps or if you have other questions.
Take care,
Joe
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Friday, September 17th, 2021 AT 5:22 PM