Cadillac STS engine starts and shuts down after 2-3 minutes with fluctuating dashboard lights and gauges on Cadillac STS

Some Cadillac STS owners report experiencing engine shutdowns after 2-3 minutes of operation, accompanied by fluctuating dashboard lights and gauges. These issues may stem from a weak battery, which can lead to flickering dashboard lights and starting difficulties. Additionally, poor grounding or wiring problems can cause erratic readings and flickering gauges, further complicating the situation. Some owners also report fuel gauge inaccuracies due to damage to the fuel sending unit from environmental factors. Furthermore, the illumination of the check engine light indicates potential problems with the engine or emissions system, which could escalate if not addressed promptly. To mitigate these issues, it is advised to check and replace the battery if needed, inspect grounding and wiring connections, evaluate the fuel sending unit for damage, and diagnose any problems indicated by the check engine light to avoid costly repairs.