Dashboard sounds Chime / beep sounds for alarms like high coolant/oil temperature, tyre pressure loss, etc Dashboard flashing lights Flashing lights for specific lights when it's a critical alert, i.e. high temperature, broken engine, etc. Usually solid lights are a warning, flashing lights are critical alert. Dashboard messages Similar to the flashing lights / sounds - on cars with MFD's or Digital Dash, to have messages of the issue, i.e. TPMS low tyre pressure. Crash horn Safety crash horn on some models of vehicle. Some vehicles sound the horn in a particular pattern on airbag deployment to alert anyone nearby of a crash. Cold start higher idle rev When engine temperature is cold, to have a higher idle rev for 10-15 seconds
