warning light

• Voyant lumineux sur un tableau de bord ou un panneau de commande qui s'allume pour alerter l'utilisateur d'un problème potentiel, d'une panne ou d'un état critique du système, comme dans une voiture ou une machine.

A visual indicator on a dashboard or control panel that illuminates to alert the user of a potential problem, malfunction, or critical condition in a system, such as a vehicle or machinery.

1. Dashboard indicatorB1formal

   A light on a vehicle's dashboard or control panel that illuminates to alert the driver of a problem or required action.

   témoin d'alerte

   • The warning light for the engine came on during the drive.
   • If the oil warning light turns red, stop the car immediately.
   • He ignored the warning light and the battery died.

2. System alertB1formal

   A visual signal on a machine or electronic device indicating a malfunction, low power, or other condition requiring attention.

   voyant d'alerte

   • The printer's warning light flashed when the paper jammed.
   • A warning light on the control panel signaled a system error.
   • The smoke detector's warning light blinked to indicate a low battery.