Barry379

GMC Sierra Automatic Temperature Control & Carly Diagnostics Issue

I own a 2015 GMC Sierra with 99,999 km, powered by a gasoline engine. I'm experiencing issues with the automatic temperature control not working. Additionally, when using Carly in the body control module, exiting the module takes me completely out of diagnostics, requiring me to re-enter. Is there a known bug fix for this issue? Any advice or solutions would be greatly appreciated!

A 2015 GMC Sierra owner is facing problems with the automatic temperature control not functioning and an issue with the Carly diagnostic tool exiting unexpectedly. Possible causes for the temperature control issue include blown fuses or loose connections in the HVAC control module. For the Carly tool, updating the software may resolve the diagnostic exit problem. Checking these areas is recommended to address the issues.

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For the automatic temperature control issue, start by checking the fuses related to the HVAC system to ensure none are blown. If the fuses are fine, inspect the HVAC control module connections for any loose or damaged wires. For the Carly diagnostic tool issue, ensure the software is up to date, as updates often fix bugs. Let me know if you need further assistance or if the problem persists.

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GMC

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SIERRA