Can the Engine Automatically Shut Off After Leaving with One-Button Start?

[DeEverett]

One-button start vehicles cannot automatically shut off the engine after the owner leaves. Below are specific reasons why the one-button start fails to detect the key: Battery Depletion: For cars with batteries older than 2 years or those parked for extended periods, you can check for battery depletion using a multimeter. Generally, the voltage should be around 12V when not in use and above 10V during ignition to rule out battery issues. Poor Fuse Contact: Lightly tap the fuse box; if the engine starts, it indicates poor fuse contact. Starter Motor Failure: If the battery has power but no sound is heard from the starter motor when pressing the ignition button, it might be a starter motor failure, requiring replacement at a repair shop.