
If the transmission temperature exceeds normal
operating limits, the powertrain controller will
modify the transmission shift schedule and ex-
pand the range of torque converter clutch en-
gagement. 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 tow-
ing a trailer up a steep grade, or in stop-
and-go traffic) during hot weather. In these
conditions, torque converter slip can im-
pose a significant additional heat load on
the cooling system. Downshifting the trans-
mission 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 opera-
tion may be modified depending on engine and
transmission temperature as well as vehicle
speed. This feature improves warm up time of
the engine and transmission to achieve maxi-
mum efficiency. Engagement of both the torque
converter clutch and the top overdrive gear are
inhibited until the transmission fluid is warm
(refer to the “Note” under “Torque Converter
Clutch” in this section). During extremely cold
temperatures (-16°F [-27°C] or below), opera-
tion may briefly be limited to first and direct
gears only. Normal operation will resume once
the transmission temperature has risen to a
suitable level.
Transmission Limp Home Mode
Transmission function is monitored electroni-
cally for abnormal conditions. If a condition is
detected that could result in transmission dam-
age, Transmission Limp Home Mode is acti-
vated. In this mode, the transmission remains in
fourth gear regardless of which forward gear is
selected. PARK, REVERSE, and NEUTRAL will
continue to operate. The Malfunction Indicator
Light (MIL) may be illuminated. Limp Home
Mode allows the vehicle to be driven to an
authorized dealer for service without damaging
the transmission.
In the event of a momentary problem, the
transmission can be reset to regain all forward
gears by performing the following steps:
1. Stop the vehicle.
2. Shift the transmission into PARK.
3. Turn the ignition switch to the OFF position.
4. Wait approximately 10 seconds.
5. Restart the engine.
6. Shift into the desired gear range. If the
problem is no longer detected, the transmis-
sion will return to normal operation.
NOTE:
Even if the transmission can be reset, we
recommend that you visit your authorized
dealer at your earliest possible conve-
nience. Your authorized dealer has diagnos-
tic equipment to determine if the problem
could recur.
If the transmission cannot be reset, authorized
dealer service is required.
265
Summary of Contents for 2015 1500
Page 2: ......
Page 3: ......
Page 5: ...2...
Page 8: ...5...
Page 69: ...66...
Page 156: ...INSTRUMENT CLUSTER MIDLINE EVIC Electronic Vehicle Information Display EVIC 153...
Page 157: ...INSTRUMENT CLUSTER PREMIUM DID Driver Information Display DID 154...
Page 234: ...Control Setting Suggestions For Various Weather Conditions Operating Tips Chart 231...
Page 309: ...Understanding The Features Of Your Winch Winch Components 306...
Page 340: ...337...
Page 383: ...380...
Page 385: ...TOWING A DISABLED VEHICLE 415 Two Wheel Drive Models 416 Four Wheel Drive Models 417 382...
Page 421: ...418...
Page 468: ...8 MAINTENANCE SCHEDULES MAINTENANCE SCHEDULE 466 465...
Page 469: ...MAINTENANCE SCHEDULE Refer to the Service and Warranty Handbook for maintenance schedules 466...
Page 470: ...9 IF YOU NEED CONSUMER ASSISTANCE IF YOU NEED ASSISTANCE 468 467...
Page 472: ...469...
Page 473: ...470...
Page 474: ...10 INDEX 471...
Page 485: ...E 85 4 4 4 D...
Page 497: ......
Page 498: ......
Page 499: ......
Page 501: ...9 A C 2 A C 2...
Page 502: ...J 2 _ 8J 7...
Page 503: ......
Page 510: ...C J M K 8 9 9H g M EM P7 1 ZPE 8 P P 2 P7 4 Z P 6 P P7 _E 3 9H c 8 9H 9H c 9 9 c 9...
Page 546: ...6 4 _ P D T J J 1 SP 6 E 7 2 7 S 8 4 5 7 E H P2 3 _ 8 E H 7 4 S 2 52 Z J4 D 5 9 D 5 5 4 10...
Page 548: ...3 6 _ 4 1 SP 5 E 7 2 D 5 6 E H P2 3 7 S 8 4 5 7 D 5 4 E P D 5 8...
Page 549: ...U CHMSL 9 O EM C J M K 8 9 9H g M 9H N 8 9H O EM C EM C 9H N 8 g M 5 9 r U6 5...
Page 551: ...3 6 _ 5 7 _ 6 4 _ OBD II 8 E X S 6_ pM 7 X M U6 V C C 9 J 9 yq A 7 6M O K...
Page 586: ...EM C K M 8 O 96 85 J U y 8 M U y...
Page 588: ......
Page 634: ......
Page 666: ...K...
Page 734: ...9 p 1500 y p 2500 3500 y J J M O9V 7 c V O9V E 85 J U y 7 c 8 M U y 7 c...
Page 742: ......
Page 749: ...9 H 2r 8 K 2 Y...
Page 840: ...DID x5 9 Y Y DID x5 9 Y Y...
Page 841: ...EVIC 8 K q 9 p r pH EVIC 8 K q 9 Y Y...
Page 987: ...r c 9 c N Y _ V 8 N V 8 N...
Page 991: ......
Page 993: ...E H J E K 2 M N O N...
Page 994: ......
Page 995: ...2 5 6 7 8 9 9 A C 2...
Page 996: ......
Page 997: ......
Page 998: ...R A M T R U C K 1 5 0 0 2 5 0 0 3 5 0 0 15D241 126 ARA AA...