Failure to perform a battery management reset, using a scan tool, upon installing a new battery can cause the system to erroneously see the old battery as still being in place and treat it as a weak, deteriorated battery. Consequently, despite the installation of a new battery, the different components inside the automobile will not be supplied with the whole electrical potential. These issues may result in problems with the car's performance, activation of warning lights such as the charge light, check engine light, ABS light, airbag light, or other warning lights, and the generation of fault codes in several modules. Additionally, it might diminish the lifespan of the replacement battery by at least one year. Therefore, it is preferable to complete the task.