Grand Cherokee 2WD V6-3.7L (2008)
Oil Temperature Gauge: Description and Operation
An oil temperature indicator is found only in the instrument cluster of SRT8 vehicles. The oil temperature indicator is an additional function of the
Electronic Vehicle Information Center (EVIC) and is selected using the STEP button in the upper instrument panel switch pod while in the trip
computer mode. This indication appears within the reconfigurable dot matrix Organic Light Emitting Diode (OLED) display unit.
The oil temperature indicator consists of an International Control and Display Symbol icon for Engine Oil Temperature , a gauge bar, and an
alpha/numeric display of the current oil temperature in either °C (Celsius) or °F (Fahrenheit), as selected with the U.S./METRIC feature of the EVIC.
The indicator displays values from 60 to 150 °C, or from 140 to 300 °F. The oil temperature indicator appears in place of the compass/trip computer
information in the 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 the indicator from being clearly visible when it is
not illuminated. The oil temperature indicator appears in the same white color and at the same lighting level as the compass/trip computer information
when it is illuminated by the instrument cluster electronic circuit board.
The oil temperature indicator is serviced as a unit with the OLED in the instrument cluster.