Post-2019 Style Upgrade: Modern tow mirror design with a sleek post-2019 look. Compatible with 2014-2018 Chevy Silverado/ GMC Sierra 1500; 2015-2019 Chevy Silverado/ GMC Sierra 2500HD,3500HD; 2019 Chevy Silverado 1500 Legacy/ GMC Sierra 1500LD Dynamic Turn Signals - Switchback Lights serve as clear white running lights and turn signals, LED turn signals on the tow mirrors, and backup lights enhance safety, giving you peace of mind every time you drive Heat Defrost & Temp Sensor: Built-in heating elements in the truck mirrors for towing quickly defrost and defog the mirrors - even in extremely cold conditions; a passenger-side temperature sensor provides real-time ambient readings for safer driving Functionality: chevy tow mirror comes with power adjustable upper mirror (flat) manually adjustable mirror (convex mirror), with manual telescopic rod can easily expand the rear view field and eliminate blind spots Durable Construction: Constructed with high-quality ABS housing to resist harsh environments, combined with a lightweight and sturdy aluminum base for long-lasting durability Towing Mirrors for Chevy Silverado/GMC Sierra 1500 (2014-2018), 2500HD 3500HD (2015-2019), Switchback Power Heated, Dynamic Turn Signal, Backup & Running Light, Manual Telescoping & Folding Compatible With: ① 2014-2018 Chevy Silverado / GMC Sierra 1500. ② 2015-2019 Chevy Silverado / GMC Sierra 2500HD,3500HD. ③ 2019 Chevy Silverado 1500 Legacy / GMC Sierra 1500LD. Functions: Power Adjustable Glass; Heated Defrost; Arrow Turn Signal On-Glass and Dynamic Turn Signal On-Back; Backup Light; Running Light; Dual Glass(Flat Glass+Convex Glass); Temp Sensor(on passenger side); Manual Telescoping and Folding. Material: Aluminum Base + ABS Plastic Housing.