Mitsubishi Lancer Owners Manual
Ignition switch ON reminder system
When the engine was started using the keyless operation function
If the driver’s door is opened with the ignition switch in any position other than “LOCK” (PUSH OFF) after turning off the engine, the ignition switch ON reminder buzzer sounds intermittently to remind you to turn off the ignition switch.
In addition, the warning display will be displayed on the information screen in the multi-information display.