Buick Verano starting issue with battery charging system light on, possible alternator problem on Buick Verano

Some Buick Verano owners report experiencing issues when the battery or alternator light comes on, indicating that the charging system voltage has dropped below 13.5 volts. This warning can suggest that the alternator is unable to sufficiently charge the battery, especially if the light appears while driving and the car subsequently fails to start. Additionally, many owners note that the Service Battery Charging System message is a common occurrence in the Buick Verano and other modern GM vehicles. Symptoms such as a slow engine crank sound often precede a dying battery, which may stem from alternator malfunctions that lead to voltage fluctuations. To diagnose these issues, owners are advised to check the interior lights and inspect the battery terminals for corrosion, as these can signal underlying charging system problems. Prompt attention to potential alternator issues is recommended to ensure the vehicle's charging system operates correctly and to prevent further starting difficulties.