Driver's warning light is the meaning of the driver's alarm system being activated. The driver's alarm system is a warning system set up by the diesel car to meet the national six emission standards, which is to ensure that the exhaust gas emission control system is working normally, especially the urea system is working efficiently, so that the tail gas nitrogen oxides can meet the emission standards.

When the driver's alarm system is activated, if the corresponding fault is not repaired in time, the system will limit the engine performance output, but will not cause the vehicle to be unable to run. The national six driver's alarm system has two levels of engine performance limiting logic, one is the first level engine performance limiting system and the second level engine performance limiting system. The first level engine performance limiting system reduces the maximum torque of the engine to about 75%. The second level engine performance limiting system can only meet the vehicle's speed of 20 miles.

To solve the problem of driver's alarm system light, the following methods can be used:

1. Urine level failure, urine quality failure, urine spray system interrupted, urine consumption deviation failure are all caused by urine system not working normally, should promptly clean the urine system and add the appropriate amount of urine;

2. EGR valve blocking, should be timely to EGR system to smooth through. Eliminating the driver's alarm system light is usually done by professional maintenance stations;

3. Malfunction caused by tampering, data after篡改导致的故障检测, need to use a vehicle detection computer to reset, make the driver's alarm system data back to normal.

The lights, electrical, and仪表 belong to the electrical system of the car, which is one of the four major components of the car. Its function is to display various warnings in time to the driver and other vehicles to ensure safe driving.

In the safety of driving, it is also important to understand the basic car dashboard icon. The function of the car's dashboard is to let the driver be able to always master the work condition of each system of the car.