Tag: #20-NA-221

Technical Service Bulletin: #20-NA-221

#20-NA-221

2021 Silverado & Sierra Infotainment System Fix Now Available At Dealers

Owners of 2021 Chevrolet Silverado and GMC Sierra models with buggy infotainment systems that prevented the use of some system functions now have a fix. Technical Service Bulletin: #20-NA-221 Release Date: 12/14/2020 Last month we published an article regarding Technical Document #PIT5793, which described a condition where some 2021 Silverado and Sierra owners began to… Continue reading 2021 Silverado & Sierra Infotainment System Fix Now Available At Dealers

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Tag: #20-NA-221

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