GMC Yukon Denali 2006 Manual page 204

TRANSMISSION HOT
Notice: If you drive your vehicle while the
transmission fluid is overheating and the
transmission temperature warning is displayed on
the instrument panel cluster and/or DIC, you
can damage the transmission. This could lead to
costly repairs that would not be covered by
your warranty. Do not drive your vehicle with
overheated transmission fluid or while the
transmission temperature warning is displayed.
If the transmission fluid temperature becomes high, this
message will appear on the DIC.
When the transmission enters the protection mode, you
may notice a change in the transmission shifting
patterns. When the transmission fluid temperature
returns to normal, the display will turn off and the
transmission shifting patterns will return to normal.
If the vehicle has the Tow/Haul mode, use this feature if
the transmission is operating at higher temperatures
and/or the following situations exist, which can cause the
transmission to operate at higher temperatures:
•
Towing a trailer
•
Hot outside air temperatures
•
Hauling a large or heavy load
•
Over-loading
3-58
•
Low transmission fluid level
•
High transmission fluid level
•
Restricted air flow to the radiator
A temporary solution to hotter transmission operating
temperatures may be to let the transmission cool down.
If the transmission is operated at higher temperatures
on a frequent basis, see Scheduled Maintenance
on page 6-4 for the transmission your vehicle is
equipped with for the proper transmission maintenance
intervals. Also see Transmission Temperature Gage
on page 3-37 for more information.
TURN SIGNAL ON
If a turn signal is left on for 3/4 of a mile (1.2 km), this
message will appear on the display and you will hear a
chime. Move the turn signal/multifunction lever to the
off position. Pressing any of the four DIC buttons or the
trip odometer reset stem will acknowledge the
message and clear it from the DIC display.