RAM 2500 Truck 2WD L6-5.9L DSL Turbo (2008)
Shifter A/T: Description and Operation
AS68RC Automatic Transmission
Description
DESCRIPTION
The gear shift mechanism provides seven shift positions which are:
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Park (P)
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Reverse (R)
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Neutral (N)
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Drive (D)
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Manual Third (3)
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Manual second (2)
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Manual low (1)
Operation
OPERATION
MANUAL LOW (1) range provides first gear only. Maximum engine braking is also provided in this range. MANUAL SECOND (2) range provides
first and second gear only. MANUAL THIRD range provides first, second and third gear only.
DRIVE range provides FIRST, SECOND, THIRD, FOURTH, OVERDRIVE FIFTH, OVERDRIVE SIXTH gear ranges. The shift into OVERDRIVE
FOURTH and FIFTH gear ranges occurs only after the transmission has completed the shift into D THIRD gear range.
The SIXTH gear upshifts occur automatically unless the Tow/Haul or OD Off mode is enabled. No upshift to FIFTH or SIXTH gears will occur if any of
the following are true:
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The transmission fluid temperature is below 5° C (41° F).
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The shift to Fourth is not yet complete.
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Vehicle speed is too low for the 4-5 or 5-6 shifts to occur.
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Transfer case is in low range.
Upshifts into FOURTH or FIFTH will be delayed when the transmission fluid temperature is below 4.5° C (40° F) or above 115.5° C (240° F).
