Caution Indicator (Yellow Wrench)
The caution indicator is illuminated whenever a malfunction within the hybrid electric system is detected and a repair is needed. When the malfunction is present, the control module that detected the malfunction stores the DTC and broadcasts a caution on CAN message to the instrument cluster. Upon receiving the CAN message, the instrument cluster turns the indicator on.
Two actions can extinguish the caution indicator light:
- the module requesting the indicator ON is reset.
- the malfunction is not present anymore and the key is cycled.
If the caution indicator flashes at the once per second rate, it indicates that the vehicle is in the engine running diagnostic mode. Refer to DIAGNOSTIC MODES for engine running diagnostic mode. The caution indicator illuminates for 3 seconds during instrument cluster prove-out when the key is cycled from the OFF to the ON position.