What are the impacts of enabling hidden car features?

[VanEloise]

Enabling hidden features has significant impacts on a car, with specific hazards as follows: 1. If a car has had its hidden features enabled (specifically referring to ECU), even during the warranty period, it may likely be ineligible for warranty services at 4S dealerships. 2. If the ECU is modified to enhance power, it will not only increase fuel consumption but also reduce the engine's lifespan and accelerate the aging of other vehicle components. Additionally, the car's resale value will decrease. So-called hidden feature enabling is essentially a set of algorithms stored in memory. It processes signals converted by the controller from input devices, generates corresponding command signals, and transmits them through output devices. Therefore, modifying hidden feature parameters is essentially altering these algorithms.