Prand new in bag The GM Genuine Parts Heater and Air Conditioning User Interface Control OEM 84842853 is a black plastic HVAC control unit made by GM. This specific part is designed for vehicles manufactured in Mexico and features a California Prop 65 Warning. With the manufacturer part number 84842853, this OEM control interface is a genuine replacement part that ensures a perfect fit and functionality for your vehicle's heating and air conditioning system.