Resetting a car's electronic system can usually be done through the system menu, physical buttons, or a power-off operation, with specific methods varying by vehicle model. The most convenient way is to select the "Restore Factory Settings" or "Reset" option through the car infotainment system's settings menu and follow the prompts to complete the operation. The power-off method requires disconnecting the negative terminal of the battery for more than 5 minutes and then reconnecting it; this method is applicable to most vehicle models but may cause settings like the clock to be lost. Some models require a combination of buttons to enter recovery mode (e.g., pressing and holding the volume up, HOME, and power buttons simultaneously) or selecting specific reset options (such as tyre pressure reset) on the steering wheel or multimedia interface. Before resetting, It is best to back up data such as navigation history and Bluetooth pairings, and keep the vehicle powered on during the operation to avoid system failures. If there are functional abnormalities after the reset, you can contact the brand's authorised service centre for system diagnosis or flashing. There may be version differences in infotainment systems of different brands; for example, some upgraded systems cannot be rolled back to older versions, so it is crucial to consult the vehicle manual or official customer service before resetting.