AutoPowr™/IVT™ — Cold-Weather Starting

LX1045750-UN-03DEC10

LX1057131-UN-21AUG13

To avoid damage at temperatures below freezing, an automatic function prevents the drive system from engaging too soon. After starting the engine, diagnostic trouble code TIA 524193.14 (INFORMATION FOR OPERATOR: Transmission Warm-up Routine is Active) is displayed.

The warm-up routine can only be started if the reverse drive lever is in the Park position. If the reverse drive lever is in any position other than Park, code TIA 524193.31 (INFORMATION FOR OPERATOR: Transmission Warm-up Routine cannot be Activated, Park Lock must be Engaged is displayed.

The time required for the transmission to warm up will vary depending on temperature:

Temperature range	Warm-up time
above -7° C (19.4° F)	None
between -8° C (17.6° F) and -15° C (5° F)	approx. 95 seconds
between -16° C (3.2° F) and -20° C (-4° F)	approx. 155 seconds
between -21° C (-5.8° F) and -30° C (-22° F)	approx. 245 seconds

At temperatures below -30° C (-22° F) only the transmission input shaft is turned. The warm-up routine starts as soon as the transmission oil temperature has reached -30° C (-22° F).

NOTE: Engine speed may rise up to 1200 rpm during the warm-up routine.