2014 - 2018 (GMT-K2) Section for all discussion related to the 2014 - 2018 Chevrolet and GMC trucks.

Climate control Mode issues

Old Jul 13, 2025 | 5:25 PM
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Default Climate control Mode issues

2015 1500.

Purchased the truck and mode does not move from front vents to defrost, floor, or variants. You could tell the mode was trying to move, but couldn't quite fully change.

Changed the mode actuator out. Everything was good for a bit, then new actuator has the same issues.

Disconnected the battery for 1/2 hour to maybe recalibrate. Hear motore humming under dash, but no change in modes.

Could it be the cam assembly? Need a different recalibrate?

Scratching my head here.
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