Vehicle Care 10-172. Keep turning the pressure capslowly and remove it.3. Fill the coolant surge tank withthe proper mixture to the FULLCOLD mark.4. With the coolant surge tankpressure cap off, start theengine and let it run until theupper radiator hose can be feltgetting hot. Watch out for theengine cooling fan.By this time, the coolant levelinside the coolant surge tankmay be lower. If the level islower, add more of the propermixture to the coolant surge tankuntil the level reaches the FULLCOLD mark.5. Replace the pressure cap tightly.6. Verify coolant level after engineis shut off and the coolant iscold. If necessary, repeat coolantfill procedure Steps 1–6.Notice: If the pressure cap is nottightly installed, coolant loss andpossible engine damage mayoccur. Be sure the cap is properlyand tightly secured.Engine OverheatingThe vehicle has several indicatorsto warn of engine overheating.There is a coolant temperaturegauge on your vehicle's instrumentpanel. See Engine CoolantTemperature Gauge on page 5‑12.In addition, ENGINE OVERHEATEDSTOP ENGINE, ENGINEOVERHEATED IDLE ENGINE, anda ENGINE POWER IS REDUCEDmessage comes on in the DriverInformation Center (DIC) on theinstrument panel. See EngineCooling System Messages onpage 5‑28 and Engine PowerMessages on page 5‑30.