For 2021, the Silverado and Sierra pickups saw relatively few changes. Most notably, the Silverado 1500 offers the newly named Multiflex six-position tailgate, borrowed from the GMC Sierra. Other changes include wireless CarPlay and Android Auto projection capability. 2.7L 4 cylinder and 3.0L Duramax diesel equipped Silverados and Sierras see increased tow ratings, and new towing technology, including a jack-knife alert and trailer length indicator, are also new additions. Several color and trim changes were also made. "Havana Brown Metallic" and "Cajun Red Tintcoat" are replaced by "Oxford Brown Metallic" and "Cherry Red Tintcoat", respectively. "Mosaic Black Metallic" is a new addition to the color palette.