If the GMC Acadia is having issues with the climate control system, then it can be a few things. If the blend actuator motor is bad then You will not be able to control the temperature of the air coming into the car, nor will You be able to control the intensity of the air. If the fan motor is bad then You will find that the air will not circulate, though You will get noise if You turn it on. Finally, if nothing is working it is also quite possible that the fuse has burnt out. If that happens You will need to find the fuse box, either under the hood or to the left of the steering wheel. Fuses are simple to replace, so this should be the first thing You check. Finally the temperature sensor, which will be in the car near the fan motor may be bad, which will cause the actuator to act weird and give random temperatures.
Emily E
July 30, 2020
To restart the GMC Acadia Hvac, shut off Ignition, remove the HVAC / ECAS fuse for 10 seconds, reinstall and power the car without hitting any buttons, wait 40 seconds for the control module to self-calibrate.
Steve
November 28, 2021
There is no hvac/ecas fuse on 2010 acadia
NADENHOLT
August 16, 2023
The ecas fuse is listed as just a HVAC fuse under the glove box on the right mmm. Passenger side
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