GMC 2006 Sierra - Manual (Page 222)

Transmission Temperature Gage
Your vehicle may be equipped with a transmission
temperature gage.
When your ignition is on, the gage shows the
temperature of the transmission fluid. The normal
operating range is from 180°F (82°C) to about
200°F (93°C).
At approximately 265°F (125°C), the driver information
center will display a TRANSMISSION HOT message
and the transmission will enter a transmission protection
mode. When the transmission enters the protection
mode, you may notice a change in the transmission
shifting patterns. The transmission will return to normal
shifting patterns when the transmission fluid temperature
falls below 260°F (120°C).
See Driver Information Center (DIC) on page 3-52 for
further information.
United States Canada
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