Jeep Cherokee auto stop/start system malfunction on Jeep Cherokee

Some Jeep Cherokee owners report experiencing malfunctions with the auto stop/start system, which can lead to repeated starter and battery replacements. These issues may stem from various causes, including loose cable connections, electrical problems, engine issues, and extreme weather conditions. Additionally, the start/stop system warning light can be triggered by battery problems, particularly involving the auxiliary battery, which is crucial for the system's operation. In some instances, the malfunction may indicate a larger issue, such as an ignition coil failure. Dealers often diagnose these problems by testing and replacing both auxiliary and main batteries. Some users have noted temporary issues where the system becomes unavailable due to low battery load, which may resolve itself over time. The complexity of diagnosing these malfunctions is reflected in varying voltage readings and warning messages reported by owners.