DTC P0217: Notes
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
The coolant temperature telltale on the instrument panel (I/P) cluster has the ability to illuminate as a result of an engine over temperature condition. The engine control module (ECM) will send a message to the I/P cluster over the class 2 link to turn the coolant temperature telltale ON if the engine coolant temperature (ECT) exceeds the temperature calibration value listed under Conditions for Setting the DTC.