INFINITI G35 unable to enter sleep mode, running lights activate when off and battery does not hold charge on INFINITI G35

Some INFINITI G35 owners report experiencing issues with their vehicles not entering sleep mode, which leads to running lights activating when the car is off and the battery not holding a charge. These problems are often attributed to parasitic battery drain caused by components such as the BOSE amp, loose terminals at the body control module (BCM), or the radio. In some instances, owners have resolved battery drain issues by removing the built-in Viper alarm system, which interferes with the CAN-bus system's ability to enter sleep mode. Additionally, some owners find that reprogramming the BCM can help prevent battery drainage, as its default setting aims to conserve battery life. Technicians may isolate the circuit causing the excess drain by identifying and disconnecting loads at the fuse panel. Continuous battery drain can lead to damage, making battery replacement necessary in certain cases. Addressing these concerns promptly can help mitigate further issues with the INFINITI G35.