What does it mean when the DEF light is on in the car?
1 Answers
When the DEF light is on in the car, it indicates that the auxiliary water tank is low on water. If the small odometer on the car dashboard displays "DEF," it means there is an internal processor fault in the dashboard. If the auxiliary water tank is low, it needs to be refilled immediately. If the issue is with the internal dashboard processor, it should be addressed promptly at a local 4S shop. The car dashboard is a device that reflects the working conditions of various vehicle systems. It displays the operational status of different car systems and immediately alerts if there is a problem, using indicator lights to ensure the safety of the occupants. Common indicators include the fuel indicator, washer fluid indicator, electronic throttle indicator, front and rear fog light indicators, and warning lights.