EgoAndy

I know old post but found this while researching a P05AE error code on my 2020 2500 Diesel TIP: On 2019-2021 Silverado 1500 and Sierra 1500 models and 2020-2021 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD models equipped with upper and lower shutters, the top passenger-side louver/vane of the upper shutter is intentionally missing from the shutter assembly for airflow reasons. Do not replace the shutter for the missing louver/vane. https://gm-techlink.com/?p=16027