Cadillac 2012 CTS Owner's Manual

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Black plate (35,1)Cadillac CTS/CTS-V Owner Manual (Include Mex) - 2012Instruments and Controls 5-35Engine Cooling SystemMessagesENGINE HOT A/C (AIRCONDITIONING) OFFThis message displays when theengine coolant becomes hotter thanthe normal operating temperature.See Engine Coolant TemperatureGauge on page 5‑16. To avoidadded strain on a hot engine,the air conditioning compressorautomatically turns off. When thecoolant temperature returns tonormal, the air conditioningcompressor turns back on. Youcan continue to drive the vehicle.If this message continues to appear,have the system repaired by yourdealer as soon as possible to avoiddamage to the engine.ENGINE OVERHEATED IDLEENGINENotice: If you drive the vehiclewhile the engine is overheating,severe engine damage mayoccur. If an overheat warningappears on the instrument panelcluster and/or DIC, stop thevehicle as soon as possible. Donot increase the engine speedabove normal idling speed.See Engine Overheating onpage 10‑23 for more information.This message displays when theengine coolant temperature is toohot. Stop and allow the vehicleto idle until it cools down. If themessage does not clear in afew minutes or if the overheat lightstays on, shut the vehicle off andhave it serviced before drivingagain. See Engine CoolantTemperature Warning Light onpage 5‑24.See Overheated Engine ProtectionOperating Mode on page 10‑24 forinformation on driving to a safeplace in an emergency.Engine Oil MessagesCHANGE ENGINE OIL SOONWhen this message displays, itmeans that service is requiredfor the vehicle. See your dealer.See Maintenance Schedule onpage 11‑3 and Engine Oil onpage 10‑10 for more information.When you reset the CHANGEENGINE OIL SOON message byclearing it from the display, you stillmust reset the engine oil life systemseparately. For more information onresetting the engine oil life system,see Engine Oil Life System onpage 10‑12.ENGINE OIL LOW ADD OILIf the vehicle has an oil level sensor,this message displays if the oil levelin the vehicle is low. Check the oillevel and correct it as necessary.