If the transmission temperature exceeds normal operat-
ing limits, the powertrain controller will modify the
transmission shift schedule and expand the range of
torque converter clutch engagement. This is done to
prevent transmission damage due to overheating.
If the transmission becomes extremely hot or is in danger
of overheating, the “Transmission Temperature Warning
Light” may illuminate and the transmission may operate
differently until the transmission cools down.
NOTE:
Use caution when operating a heavily loaded
vehicle at low speeds (such as towing a trailer up a steep
grade, or in stop-and-go traffic) during hot weather. In
these conditions, torque converter slip can impose a
significant additional heat load on the cooling system.
Downshifting the transmission to the lowest possible
gear (when climbing a grade), or shifting to NEUTRAL
(when stopped in heavy traffic) can help to reduce this
excess heat generation.
During cold temperatures, transmission operation may
be modified depending on engine and transmission
temperature as well as vehicle speed. This feature im-
proves warm up time of the engine and transmission to
achieve maximum efficiency. Engagement of the torque
converter clutch is inhibited until the transmission fluid
is warm (see the “Note” under “Torque Converter
Clutch” in this section). On Pickup models with 68RFE
transmission, top overdrive gear is also inhibited until
the transmission fluid is warm, and during extremely
cold temperatures (-16°F [-27°C] or below), operation
may briefly be limited to first and direct gears only. On
trucks with AS69RC transmission, fifth and sixth gears
may be inhibited briefly on cold starts below 41°F (5°C),
and during very cold temperatures (-4°F [-20°C] or
below), operation may briefly be limited to third gear
only. During this condition, the ability of the vehicle to
188
STARTING AND OPERATING
Summary of Contents for Truck 2014
Page 1: ...R a m Tr u c k O W N E R S M A N U A L 2 0 1 4 D i e s e l S u p p l e m e n t...
Page 3: ...RAM DIESEL SUPPLEMENT RAM 1500 3 RAM 2500 3500 4500 5500 119 INDEX 315...
Page 4: ......
Page 5: ...RAM 1500...
Page 6: ......
Page 8: ......
Page 9: ...INTRODUCTION CONTENTS A MESSAGE FROM CHRYSLER GROUP LLC 8 1...
Page 16: ...INSTRUMENT CLUSTER 14 UNDERSTANDING YOUR INSTRUMENT PANEL...
Page 17: ...INSTRUMENT CLUSTER LARAMIE 3 UNDERSTANDING YOUR INSTRUMENT PANEL 15...
Page 36: ......
Page 110: ......
Page 120: ......
Page 121: ...RAM 2500 3500 4500 5500...
Page 122: ......
Page 124: ......
Page 125: ...INTRODUCTION CONTENTS A MESSAGE FROM CHRYSLER GROUP LLC 124 1...
Page 134: ...INSTRUMENT CLUSTER 132 UNDERSTANDING YOUR INSTRUMENT PANEL...
Page 154: ......
Page 239: ...WHAT TO DO IN EMERGENCIES CONTENTS JUMP STARTING 238 With Portable Starting Unit 241 5...
Page 244: ......
Page 290: ......
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Page 317: ...INDEX...
Page 330: ...Chrysler Group LLC 14D241 226 AA First Edition Printed in U S A...