What does Porsche PSM malfunction mean?

[DiSerenity]

Porsche PSM malfunction indicates a failure in the stability management system, which is a comprehensive safety system that includes electronic systems such as the anti-lock braking system, automatic brake differential system, and acceleration slip regulation system. When a Porsche experiences a PSM malfunction, it can still be driven, but the speed should be reduced. Otherwise, during high-speed or rapid acceleration, the vehicle may experience dangerous conditions such as deviation, understeer, or skidding. Repairing a malfunction in the Porsche PSM stability management system is relatively difficult, and replacement is often the preferred solution. The PSM stability management system helps maintain vehicle stability under extreme dynamic driving conditions. Porsche introduced the PSM stability management system to make it easier for consumers to handle the vehicle, and with the assistance of the PSM system, the car can be driven faster and more safely. To ensure the vehicle does not deviate from the correct driving direction, multiple sensors continuously monitor the vehicle's direction, speed, yaw rate, and lateral acceleration, and calculate the actual driving direction. If the vehicle shows signs of oversteer or understeer, the PSM stability management system will apply independent braking to the corresponding wheels.