Black plate (80,1)Cadillac STS Owner Manual - 2011ENGINE COOLANT HOT IDLE ENGINENotice: If you drive your vehicle while the engine isoverheating, severe engine damage may occur. If anoverheat warning appears on the instrument panelcluster and/or DIC, stop the vehicle as soon aspossible. Do not increase the engine speed abovenormal idling speed. See Engine Overheating onpage 6‑30 for more information.This symbol appearswith this message.This message displays when the engine coolanttemperature is too hot. Stop and allow the vehicle toidle until it cools down. See Engine CoolantTemperature Warning Light on page 4‑61.See Overheated Engine Protection Operating Mode onpage 6‑32 for information on driving to a safe place inan emergency.ENGINE HOT – AC(Air Conditioning) OFFThis message displays when the engine coolantbecomes hotter than the normal operating temperature.See Engine Coolant Temperature Gauge onpage 4‑61. To avoid added strain on a hot engine, theair conditioning compressor is automatically turned off.When the coolant temperature returns to normal, the airconditioning compressor turns back on. You cancontinue to drive your vehicle.If this message continues to appear, have the systemrepaired by your dealer as soon as possible to avoiddamage to the engine.ENGINE POWER REDUCEDThis message displays when the engine power isbeing reduced to protect the engine from damage.There could be several malfunctions that might causethis message. Reduced engine power can affect thevehicle's ability to accelerate. If this message is on, butthere is no reduction in performance, proceed to yourdestination. The performance may be reduced thenext time the vehicle is driven. The vehicle may bedriven at a reduced speed while this message is on, butacceleration and speed may be reduced. Anytime thismessage stays on, take the vehicle to your dealer forservice as soon as possible.4-80
