What Does the Small Gear Symbol on the Car Dashboard Mean?
1 Answers
This light is the transmission warning light. If this light illuminates on the dashboard, it indicates a fault in the transmission. Below is relevant information: 1. Equipment: Generally, only cars equipped with automatic transmissions have this light, while those with manual transmissions do not. This is because manual transmissions rarely experience faults and lack onboard computers and sensors. 2. Automatic Transmission: It is equipped with a TCU (Transmission Control Unit), which collects data from various sensors and processes it to control gear shifts via actuators. Without the TCU, the automatic transmission cannot function properly. 3. Common Automatic Transmissions in Cars: There are three types—AT (Automatic Transmission), CVT (Continuously Variable Transmission), and DCT (Dual-Clutch Transmission).