426 STARTING AND OPERATING
When frequent transmission shifting occurs (such as
when operating the vehicle under heavy loading condi-
tions, in hilly terrain, or traveling into strong head
winds), use the AutoStick® shift control (refer to
"AutoStick®" in this section for further information) to
select a lower gear. Under these conditions, using a lower
gear will improve performance and extend transmission
life by reducing excessive shifting and heat buildup.
During extremely cold temperatures, the transmission
will not operate if the oil temperature is -22°F (-30°C) or
below. Allow the engine to idle briefly with the transmis-
sion in PARK in order to warm the fluid. Normal
operation will resume once the transmission temperature
has risen to a suitable level.
Instrument Cluster Messages
Messages will be displayed in the instrument cluster to
alert the driver when certain unusual conditions occur.
These messages are described below.