Cadillac 2011 DTS Owner's Manual

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Black plate (29,1)Cadillac DTS Owner Manual - 20114.6L L37 Engine shown, 4.6L LD8 Engine similar4. With the coolant surge tank cap off, start theengine and let it run until you can feel the upperradiator hose getting hot. Watch out for the enginecooling fans.By this time, the coolant level inside the coolantsurge tank may be lower. If the level is lower, addmore of the proper mixture to the coolant surgetank until the level reaches the FULL COLD markon the side of the coolant surge tank.5. Replace the cap. Be sure the cap is hand‐tight andfully seated.Notice: If the pressure cap is not tightly installed,coolant loss and possible engine damage mayoccur. Be sure the cap is properly and tightlysecured.If coolant is needed, add the proper DEX-COOL ®coolant mixture at the coolant recovery tank.Engine OverheatingThe vehicle has several indicators to warn of engineoverheating.There is an engine temperature warning light and/orgauge on the instrument panel cluster. See EngineCoolant Temperature Warning Light on page 4‑53 andEngine Coolant Temperature Gauge on page 4‑53.The vehicle may also display a ENGINE OVERHEATEDIDLE ENGINE message or an ENGINE OVERHEATEDSTOP ENGINE message displayed in the DriverInformation Center (DIC). See DIC Warnings andMessages on page 4‑65 for more information. You willalso hear a chime.The decision may be made not to lift the hood whenthis warning appears, but instead get service help rightaway. See Roadside Service on page 8‑7.If the decision is made to lift the hood , make sure thevehicle is parked on a level surface.6-29