Grand Cherokee 2WD V6-3.7L (2008)
Coolant Level Indicator Lamp: Description and Operation
A coolant low indicator is standard equipment on all instrument clusters. However, on vehicles not equipped with an optional diesel engine this indicator
is electronically disabled. The coolant low indication appears within the reconfigurable dot matrix Organic Light Emitting Diode (OLED) display unit.
The coolant low indicator consists of a textual COOLANT LOW message and icon which appears in place of the compass/trip computer information in
the reconfigurable dot matrix display.
The dot matrix OLED is soldered onto the cluster electronic circuit board, and is visible through a window with a smoked clear lens located on the lower
edge of the tachometer gauge dial face of the cluster overlay. The dark lens over the OLED prevents it from being clearly visible when it is not
illuminated. The coolant low textual message and icon appear in the same white color and at the same lighting level as the compass/trip computer
information when they are illuminated by the instrument cluster electronic circuit board.
The coolant low indicator is serviced as a unit with the OLED in the instrument cluster.