How to Resolve the 'Vehicle Previously Hacked' Alert on Buick Cars?

[PaulMarie]

When a vehicle is hacked, corresponding fault information will be stored in the ECU (Electronic Control Unit) or displayed on the dashboard. In such cases, it is essential to promptly visit an authorized repair facility for inspection and clearance of the alert, as well as to determine the cause of the hacking notification. Hacking refers to intentional unauthorized attempts to access information, process data, or disrupt the system to render it unreliable or unusable. The automotive comprehensive performance testing line is a vehicle inspection system that integrates modern detection technology, electronics, and computer applications to conduct non-destructive testing and diagnostics on vehicles. The testing line is divided into three sections: the first section, which the vehicle enters initially, primarily tests speed, emissions, and chassis; the second section focuses on braking performance, consisting of an axle weight measurement platform and a brake testing platform; and the third section measures parameters such as side slip, lighting, and sound levels. If there is a chassis dynamometer or engine test, it is also conducted in this section. After the vehicle enters the testing line, an LED dot-matrix display provides instructions, and the driver operates according to the prompts on the screen. The trigger signal for testing is provided by a photoelectric switch. The testing process is as follows: First, the vehicle information of the car to be inspected is logged into the login computer, where all vehicles awaiting inspection are queued. When the first testing station is available, the system prompts the vehicle to proceed. When the designated drive axle enters the speed testing platform, the lifting plate of the speed testing platform descends under the control of the main computer, and a speed test prompt appears on the display. Typically, a 40 km/h test is conducted, meaning the driver adjusts the speed to 40 km/h, and the computer records the actual speed. After the test, the lifting plate raises the wheels, and the vehicle moves to the next test item. The second section primarily tests braking performance, using a single-axle reaction force drum brake tester, with the motor driven by an electrical cabinet controlled by the main computer. The vehicle then proceeds to the third station, where lighting is tested using a lighting tester, and side slip is measured as the vehicle exits. After completing the tests, the main computer transmits the data to the data computer, which prints the data in a specified format and stores it in a database for future queries. The system allows multiple vehicles to be tested simultaneously, ensuring high efficiency.