Engine Coolant Indicators
WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
TEMP
- The HOT COOLANT INDICATOR illuminates when the powertrain control module (PCM) determines that the coolant temperature is greater than 128°C (262°F). The HOT COOLANT INDICATOR control circuit is grounded by the PCM, causing the HOT COOLANT INDICATOR to illuminate.
- The IPC performs the displays test at the start of each ignition cycle. The HOT COOLANT INDICATOR will illuminate during this test.