A Water Temperature Gauge allows you to monitor your vehicle's engine coolant temperature to ensure it does not overheat, potentially causing major engine damage. Your vehicle’s coolant system is designed to keep the engine at a constant temperature.
Propel levels and temperature of transmission oil, also called transmission fluid, are vital to your car's transmission working properly. This indicator light is warning you that the transmission fluid's temperature too high, which can lead to transmission failure. Transmission failures are one of a vehicle owner's worst nightmares, as they are notoriously expensive to repair, and one of the things mostly to damage your transmission is overheating.