Chevrolet Sonic all lights illuminate then vehicle shuts off, no repairs resolved the issue on Chevrolet Sonic

Some Chevrolet Sonic owners report experiencing issues where all lights illuminate and the vehicle shuts off unexpectedly, indicating a potential recurring problem with this model. Many have noted that during these incidents, the engine shuts down, door locks cycle, and power steering and brakes fail, which aligns with the symptoms being reported. Some vehicles may even restart automatically after shutting down, possibly as a safety feature. Owners emphasize the importance of conducting thorough diagnostic tests to uncover any underlying issues, though intermittent problems can complicate this process. One potential cause could be related to the engine not reaching the proper operating temperature, often indicated by a check engine light with code P0128, possibly due to thermostat failure. Additionally, if the vehicle stalls and takes time to restart, this may point to other underlying issues that require attention. Given the safety implications of sudden shutdowns while driving, it is crucial for owners to work closely with experienced mechanics to identify and resolve these problems.