Mazda6 AT light being on is a serious issue. When this indicator light is illuminated, it can cause the engine to stall when shifting gears, the transmission to lock, or the vehicle to fail to move when engaged. It is necessary to take the car to a 4S shop for inspection to avoid breaking down on the road. The 4S shop will need to use a decoder to diagnose the issue by accessing the car's computer system to identify the specific fault for easier repair. Below is relevant information: 1. The AT light indicates a transmission fault. Symptoms of a transmission fault light being on include jerking, abnormal noises, slipping, and impact issues, which require immediate repair. If the AT light is on, don’t panic; try turning off the engine and restarting it to see if it returns to normal. If it doesn’t return to normal or there is gear shifting impact, it is usually a real fault in the transmission system. 2. The transmission is a mechanism used to change the speed and torque from the engine. It can fix or change the gear ratio between the output shaft and input shaft, also known as the gearbox. The transmission consists of a transmission mechanism and a control mechanism, and some cars also have a power output mechanism. Most transmission mechanisms use ordinary gear transmission, while some use planetary gear transmission. Ordinary gear transmission mechanisms generally include sliding gears and synchronizers. The stepped transmission is the most widely used type. It uses gear transmission and has several fixed transmission ratios. Depending on the gear train type, there are two types: fixed-axis transmissions (ordinary transmissions) and rotating-axis transmissions (planetary gear transmissions).
