Cadillac SRX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9087647) - 2016 - crc - 5/4/15254 Vehicle CareCautionIn cold weather, water can freezeand crack the engine, radiator,heater core, and other parts. Usethe recommended coolant andthe proper coolant mixture.{ WarningYou can be burned if you spillcoolant on hot engine parts.Coolant contains ethylene glycoland it will burn if the engine partsare hot enough. Do not spillcoolant on a hot engine.1. Remove the coolant surge tankpressure cap when the coolingsystem, including the coolantsurge tank pressure cap andupper radiator hose, is nolonger hot.Turn the pressure cap slowlycounterclockwise aboutone-quarter of a turn. If youhear a hiss, wait for that tostop. This will allow anypressure still left to be ventedout the discharge hose.2. Keep turning the pressure capslowly and remove it.3. Fill the coolant surge tank withthe proper mixture to theindicated level mark.4. With the coolant surge tankpressure cap off, start theengine and let it run until youcan feel the upper radiatorhose getting hot. Watch out forthe engine 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 surgetank until the level reaches theindicated level mark.5. Replace the pressure captightly.6. Verify coolant level after theengine is shut off and thecoolant is cold. If necessary,repeat coolant fill procedureSteps 1–6.If the coolant still is not at theproper level when the systemcools down again, see yourdealer.CautionIf the pressure cap is not tightlyinstalled, coolant loss andpossible engine damage mayoccur. Be sure the cap is properlyand tightly secured.Engine OverheatingThe vehicle has an indicator to warnof engine overheating.There is an engine coolanttemperature warning light on thevehicle's instrument cluster. SeeEngine Coolant Temperature Gauge0 122.If the decision is made not to lift thehood when this warning appears,but instead get service help rightaway. See Roadside Service 0 350.If the decision is made to lift thehood, make sure the vehicle isparked on a level surface.