Head Up Display (HUD) Module

The HUD contains the red LEDs  that warn the driver of a possible collision event when commanded by the C-CM  .

There are certain situations when the warning LEDs  cannot be seen, such as strong sunlight or when wearing sunglasses. The HUD module has a temperature sensor circuit that is integral to the module that senses the temperature of the LEDs  internal to the module. When a high passenger compartment temperature such as strong sunlight is sensed by the temperature sensor, the warning LEDs  can be temporarily disengaged. If this occurs, only the audible warning chime is used. Warnings may not appear if the distance to the vehicle ahead is very small or if the steering wheel and pedal movements are large, for example, due to a very active driving style.