Cadillac 2010 DTS Owner's Manual page 235

This message displays when the engine coolant
temperature is too hot. Stop and allow the vehicle
to idle until it cools down. See Engine Coolant
Temperature Warning Light on page 4 54.
See Overheated Engine Protection Operating Mode on
page 6 32 for information on driving to a safe place in
an emergency.
This message displays when the engine has
overheated. Immediately look for a safe place to pull
your vehicle over and turn the engine off right away to
avoid severe engine damage. See Engine Overheating
on page 6 29 and Overheated Engine Protection
Operating Mode on page 6 32. A chime also sounds
when this message is displayed.
This message displays when the engine power is
being reduced to protect the engine from damage.
There could be several malfunctions that might cause
this message. Reduced engine power can affect the
vehicle's ability to accelerate. If this message is on,
but there is no reduction in performance, proceed to
your destination. The performance may be reduced the
next time the vehicle is driven. The vehicle may be
driven at a reduced speed while this message is on, but
acceleration and speed may be reduced. Anytime this
message stays on, the vehicle should be taken to your
dealer for service as soon as possible.
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