Defroster/defogger/hvac System Problems of GMC Canyon

The contact owns a 2023 GMC Canyon. The contact stated while driving at an undisclosed speed, he became aware that the defroster had failed to properly defrost the windshield. The contact also stated that because of the failure, the windshield wipers had failed to function properly after becoming frozen. No warning lights were illuminated. The vehicle was taken to the dealer, who determined that the defroster was operating as intended; however, the design was inadequate to defrost the entire front windshield. The vehicle was not repaired. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 3,000.

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