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Transmission Fluid Hot Message
When you see this flashing
symbol, the transmission
fluid temperature is
high (290°F (143°C)).
To acknowledge this warning, press either button on the
outboard switch on the left spoke of the steering wheel.
After you press this button, the warning will redisplay
every 10 minutes until the temperature returns to
the normal operating range. If this message appears,
you may continue to drive at a slower speed while
monitoring the transmission fluid temperature. Ideally,
the transmission oil temperature should not rise
above 265°F (129°C). If you regularly experience
temperatures above this limit due to high performance
operation, it is recommended to use an auxiliary
fluid cooler for the transmission and differential.
See your GM dealer for details. If this warning is
displayed during normal vehicle operation on flat roads,
your vehicle may need service. See your dealer for
an inspection. See DIC Warnings and Messages
on page 3-61 and Manual Transmission Fluid on
page 5-26 for more information.
Hot Coolant Temperature
Warning Message
When you see this flashing
symbol, the engine coolant
temperature is high
(257°F (125°C)).
To acknowledge this warning, press either button on the
outboard switch on the left spoke of the steering wheel.
After you press a button, this warning will redisplay
every 10 minutes until the temperature returns to the
normal operating range. Driving aggressively or
driving on long hills can cause the engine coolant
temperature to be higher than normal. Display of this
warning should correspond with the Engine Coolant
Temperature Warning Light. See Engine Coolant
Temperature Warning Light (CTS) on page 3-40 for
more information. If this warning is displayed during
normal vehicle operation on flat roads, your vehicle may
need service. See your dealer for an inspection.
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