Bulb

About this product

The Bulb (#84999-10120), a critical component in Toyota's Electrical Heating & Air Conditioning - Control & Air Duct system and the Electrical Switch & Relay & Computer system, illuminates controls and signals. When the system is activated, electrical current is sent to the bulb, which then emits light. The bulb, an essential component, is directly linked to the effectiveness and safety of these systems. Periodic replacement of the bulb is crucial. An aged or broken bulb may fail to emit light, making it difficult to operate the vehicle’s controls effectively, potentially leading to safety concerns. The use of genuine Toyota parts is recommended, as they are compatible with the vehicle's systems and are backed by Toyota's genuine parts warranty. A well-functioning bulb significantly contributes to the overall efficiency of the systems it is placed in, enhancing visibility and ensuring smooth operation of controls in the vehicle.