Buick LaCrosse intermittent engine shutdown issue requiring key insertion near ignition on Buick LaCrosse

Some Buick LaCrosse owners report experiencing intermittent engine shutdown issues that require key insertion near the ignition. These problems may be linked to the ignition system, as malfunctions can lead to stalling while driving. Additionally, unexpected engine shutdowns could stem from electrical system failures, which may be indicated by warning messages such as "reduced engine power" and "starting disabled." Owners are advised to ensure the ignition switch is functioning properly, as issues here can significantly affect vehicle operation. For those with a 2013 Buick LaCrosse featuring a push-start system, locating the key insertion point may be necessary to troubleshoot key-related concerns. Furthermore, some owners find that engine shutdowns necessitating coasting to a stop could be related to issues like bad battery terminals. To address these concerns, it is recommended to have the ignition system inspected by a qualified mechanic and to monitor dashboard error messages for diagnostic clues.