clutch Ram ProMaster 2015 Owner's Manual

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 (refer to the “Note” under “Torque Converter
Clutch” in this section). During extremely cold tempera-
tures (-16°F [-27°C] or below), operation may briefly be
limited to third gear only. Normal operation will resume
once the transmission temperature has risen to a suitable
level.
Transmission Limp Home Mode
Transmission function is monitored electronically for
abnormal conditions. If a condition is detected that could
result in transmission damage, Transmission Limp Home
Mode is activated. In this mode, the transmission remains
in third gear regardless of which forward gear is selected.PARK, REVERSE, and NEUTRAL will continue to oper-
ate. The Malfunction Indicator Light (MIL) may be illu-
minated. Limp Home Mode allows the vehicle to be
driven to an authorized dealer for service without dam-
aging 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 transmission will return to normal
operation.
210 STARTING AND OPERATING

When To Use TOW/HAUL Mode
When driving in hilly areas, towing a trailer, carrying a
heavy load, etc., and frequent transmission shifting oc-
curs, push the TOW/HAUL switch to activate TOW/
HAUL mode. This will improve performance and reduce
the potential for transmission overheating or failure due
to excessive shifting. When operating in TOW/HAUL
mode, transmission upshifts are delayed, and the trans-
mission will automatically downshift (for engine brak-
ing) during steady braking maneuvers.
The “TOW/HAUL Indicator Light” will illuminate in the
instrument cluster to indicate that TOW/HAUL mode
has been activated. Pushing the switch a second time
restores normal operation. Normal operation is always
the default at engine start-up. If TOW/HAUL mode is
desired, the switch must be pushed each time the engine
is started.Torque Converter Clutch
A feature designed to improve fuel economy has been
included in the automatic transmission on your vehicle.
A clutch within the torque converter engages automati-
cally at calibrated speeds. This may result in a slightly
different feeling or response during normal operation in
the upper gears. When the vehicle speed drops or during
some accelerations, the clutch automatically disengages.
NOTE:
•
The torque converter clutch will not engage, until the
transmission fluid and engine coolant are warm [usu-
ally after 1 to 3 miles (2 to 5 km) of driving]. Because
the engine speed is higher when the torque converter
clutch is not engaged, it may seem as if the transmis-
sion is not shifting into Overdrive when cold. This is
normal. Using the Electronic Range Select (ERS) shift
control, when the transmission is sufficiently warm,
will demonstrate that the transmission is able to shift
into and out of Overdrive.
5
STARTING AND OPERATING 213

Tire Markings............................230
Tires............................ .67, 242, 403
Aging (Life Of Tires) .....................252
Air Pressure .......................... .242
Chains ...............................254
Compact Spare ........................ .249
General Information .....................242
High Speed .......................... .245
Inflation Pressures .......................243
Life Of Tires .......................... .252
Load Capacity ..................... .237, 239
Pressure Monitor System (TPMS) ............257
Pressure Warning Light ...................128
Quality Grading ........................403
Radial ...............................245
Replacement .......................... .253
Rotation ............................. .256
Safety ............................230, 242
Sizes ............................... .232Snow Tires
............................247
Spinning ............................ .250
Trailer Towing ........................ .278
Tread Wear Indicators ....................251
Tire Safety Information .....................230
Tire Service Kit .......................... .290
Tongue Weight/Trailer Weight ................275
Torque Converter Clutch ....................213
Towing ............................ .271, 324
Disabled Vehicle ........................324
Guide ...............................275
Recreational .......................... .283
Weight ...............................275
Towing Vehicle Behind A Motorhome ...........283
Traction ............................... .214
Traction Control ..........................222
T raction

Control Switch .....................222
Trailer Sway Control (TSC) ..................227
Trailer Towing .......................... .27110
INDEX 419