GM Chevrolet Avalanche - Manual (Page 213)

TRANS HOT IDLE ENGINE
If the transmission fluid gets hot, this message will
appear on the DIC along with a continuous chime.
Driving with the transmission fluid temperature high can
cause damage to the vehicle. Stop the vehicle and
let it idle to allow the transmission to cool. This message
will clear and the chime will stop when the fluid
temperature reaches a safe level.
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 transmission
temperature warning is displayed.
TRANSMISSION HOT
If the transmission fluid temperature becomes high, this
message will appear on the DIC display.
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.
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 transmission
temperature warning is displayed.
The following situations can cause the transmission to
operate at higher temperatures:
• Towing a trailer
• Hot outside air temperatures
• Hauling a large or heavy load
• Over-loading
• 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 proper transmission maintenance
intervals.
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