Buick Century flickering dashboard lights and battery warning with new battery, suspected alternator issue pending diagnosis on Buick Century

Some Buick Century owners report experiencing flickering dashboard lights and a battery warning after installing a new battery, often suspecting an issue with the alternator. These dashboard warning lights, particularly the battery light, may indicate potential alternator trouble, as a faulty alternator can lead to insufficient power, causing both flickering lights and the battery warning to trigger. To verify the alternator's condition, owners can start the vehicle and use a multimeter to check the voltage across the battery terminals, which should typically range between 13.7 and 14.7 volts when the engine is running. Additionally, the persistence of the battery light may signal a problem with either the alternator or the battery itself, highlighting the importance of addressing these components during electrical troubleshooting. It is advisable for owners to have the alternator checked to ensure it is functioning correctly and providing the necessary power to resolve the flickering lights and battery warning issues.