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Cadillac DTS Owner Manual - 2011
Engine Coolant Temperature
Warning Light
The engine coolant
temperature warning light
comes on when the
engine is very hot.
This light also comes on briefly when the vehicle is
started.
If the light does not go out or comes on and stays on
while driving, there may be a problem with the cooling
system. Driving with engine coolant temperature light on
could cause the vehicle to overheat, see Overheated
Engine Protection Operating Mode
on page 6‑31
. See
Engine Overheating
on page 6‑29
and DIC Warnings
and Messages
on page 4‑65
for more information.
Engine Coolant Temperature Gauge
This gauge shows
the engine coolant
temperature.
It indicates when the engine has warmed up and if
the cooling system is operating properly. If the gauge
pointer moves into the shaded area, the engine coolant
is too hot and the engine coolant temperature warning
light comes on. See Engine Overheating
on page 6‑29
for more information.
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