Most self-driving cars and cars with crash avoidance technology do have pedestrian avoidance (PA) technology built in, which uses sensors such as cameras and radar to detect pedestrians in the car’s path and automatically applies the brakes to avoid a collision.
As for the potential for carjackers to use this technology to immobilize a car, it is unlikely that this would be a successful tactic for several reasons. First, most PA systems have built-in safety measures to prevent misuse, such as the ability to override the system manually if the driver determines that the detected pedestrian is not a threat. Second, many PA systems are designed to only activate at certain speeds or under specific conditions, so a carjackers would need to be in the right place at the right time in order to immobilize the car. Additionally, the PA system may not always stop the car, it could slow it down and give warning to the driver to take further action, allowing the driver to have control over the car.
In any case, it is important to note that carjacking is a serious crime and should be reported to the police immediately. It is also a good idea for drivers to take precautions such as being aware of their surroundings, avoiding parking in isolated areas, and keeping doors locked and windows closed when the car is parked.
As for the question about the PA function being overridden quickly, it depends on the specific system and the car make and model. Some systems may have a manual override button that the driver can press to turn off the PA system, while others may require the driver to take certain actions such as pressing the brake pedal or steering the car in a certain way. It is best to consult the car’s manual or speak with a dealership or manufacturer representative to learn more about the specific PA system in your car and how it can be overridden.