Low Engine Oil Pressure
WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
The instrument panel cluster (IPC) illuminates the LOW ENGINE OIL PRESSURE indicator in the IPC when the engine control module (ECM)/powertrain control module (PCM) detects low engine oil pressure and the signal circuit is low. The IPC receives a class 2 message requesting warning message illumination from the PCM.