See also:

Cooling System – Drain, Flush, And Refill
If the engine coolant (antifreeze) is dirty or contains a considerable amount of sediment, clean and flush with a reliable cooling system cleaner. Follow with a thorough rinsing to remove all de ...

Selection Of Coolant
Use only the manufacturer’s recommended engine coolant (antifreeze). Refer to “Fluids, Lubricants, and Genuine Parts” in “Maintaining Your Vehicle” for further information. CAUTION! ...

Service FCW Warning
If the system turns off, and the EVIC displays “ACC/ FCW Unavailable Service Radar Sensor”, it indicates there is an internal system fault. Although the vehicle is still drivable under norma ...