Cadillac 2010 CTS Owner's Manual

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Vehicle Care 9-23Notice: If the pressure cap is nottightly installed, coolant loss andpossible engine damage mayoccur. Be sure the cap is properlyand tightly secured.If the coolant is not at the properlevel when the system cools downagain, see your dealer/retailer.Engine OverheatingThe vehicle has several indicatorsto warn of engine overheating.There are two engine hot messagesthat may be displayed in the DriverInformation Center (DIC). See DriverInformation Center (DIC) onpage 4‑31 for more information.You may decide not to lift the hoodwhen this warning appears, butinstead get service help right away.See Roadside Service onpage 12‑6.If you do decide to lift the hood ,make sure the vehicle is parked ona level surface.Then check to see if the enginecooling fans are running. If theengine is overheating, the fan(s)should be running. If they are not,do not continue to run the engineand have the vehicle serviced.Notice: Engine damage fromrunning the engine withoutcoolant is not covered by thewarranty.Notice: If the engine catches firebecause of being driven with nocoolant, your vehicle can bebadly damaged. The costlyrepairs would not be covered bythe vehicle warranty.If Steam Is Coming From TheEngine Compartment{ WARNINGSteam from an overheated enginecan burn you badly, even if youjust open the hood. Stay awayfrom the engine if you see or hearsteam coming from it. Just turn itoff and get everyone away fromthe vehicle until it cools down.Wait until there is no sign ofsteam or coolant before you openthe hood.If you keep driving when yourengine is overheated, the liquidsin it can catch fire. You or otherscould be badly burned. Stop yourengine if it overheats, and get outof the vehicle until the engineis cool.