2015 Ram Cargo Van ECO mode

on low until the engine warms up. The fan will engage
immediately if the Defrost mode is selected, or by chang-
ing the front blower knob setting.
Manual Operation Override
This system offers a full complement of manual override
features. The AUTO symbol in the front ATC display will
be turned off when the system is being used in the
manual mode.
Controlling The Rear Climate Controls From The
Front ATC Panel
The Three-Zone ATC system allows for adjustment of the
rear climate controls from the front ATC panel.
To change the rear system settings:
•Push REAR button to change control to rear control
mode, Rear display (below) will appear. Control func-
tions now operate rear system. •
To return to Front screen, push REARbutton again,
or it will revert to the Front screen after six seconds.
1. Mode Display
This display shows the current Mode selection.
Front ATC Panel Rear Control Display
426 UNDERSTANDING YOUR INSTRUMENT PANEL

The rear system temperature control is on the front ATC
panel located on the instrument panel.
Pushing the Rear Temperature Lock button on the front
ATC panel, illuminates a lock symbol in the rear display.
The rear temperature and air source are controlled from
the front ATC panel.
Rear second row occupants can only adjust the rear ATC
control when the Rear Temperature Lock button is turned
off.
The rear ATC system is located in the headliner, near the
center of the vehicle.1. Push the Rear Temperature Lock button on the frontATC panel. This turns off the Rear Temperature Lock
icon in the rear temperature knob.
Rear ATC Control Features
1 — Blower Speed 3 — Rear Mode
2 — Rear Temperature 4 — Rear Temperature Lock
428 UNDERSTANDING YOUR INSTRUMENT PANEL

Operating Tips
NOTE:Refer to the chart at the end of this section for
suggested control settings for various weather condi-
tions.
Summer Operation
The engine cooling system must be protected with a
high-quality antifreeze coolant to provide proper corro-
sion protection and to protect against engine overheating.
OAT coolant (conforming to MS.90032) is recommended.
Refer to “Maintenance Procedures” in “Maintaining Your
Vehicle” for proper coolant selection.
Winter Operation
To ensure the best possible heater and defroster perfor-
mance, make sure the engine cooling system is function-
ing properly and the proper amount, type, and concen-
tration of coolant is used. Refer to “Maintenance
Procedures” in “Maintaining Your Vehicle” for proper
coolant selection. Use of the air Recirculation mode
during Winter months is not recommended, because it
may cause window fogging.
Vacation/Storage
Before you store your vehicle, or keep it out of service
(i.e., vacation) for two weeks or more, run the air
conditioning system at idle for about five minutes, in
fresh air with the blower setting on high. This will ensure
adequate system lubrication to minimize the possibility
of compressor damage when the system is started again.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 431

STARTING AND OPERATING
CONTENTS
STARTING PROCEDURES ................439
▫ Automatic Transmission ................439
▫ Normal Starting ...................... .439
▫ Extreme Cold Weather
(Below –20°F Or 29°C) ................440
▫ If The Engine Fails To Start ..............440
▫ After Starting ....................... .441
 ENGINE BLOCK HEATER — IF EQUIPPED . . .442
 AUTOMATIC TRANSMISSION ............442
▫ Key Ignition Park Interlock ...............444 ▫
Brake/Transmission Shift Interlock System . . .444
▫ Fuel Economy (ECON) Mode .............445
▫ Six-Speed Automatic Transmission .........446
▫ Gear Ranges ........................ .447
 DRIVING ON SLIPPERY SURFACES .........455
▫ Acceleration ........................ .455
▫ Traction ........................... .455
 DRIVING THROUGH WATER .............456
▫ Flowing/Rising Water ..................456
▫ Shallow Standing Water .................456
5

Fuel Economy (ECON) Mode
The Fuel Economy (ECON) mode can improve the vehi-
cle’s overall fuel economy during normal driving condi-
tions. Press the “econ” switch in the center stack of the
instrument panel and a green light will indicate the
ECON mode is engaged.When the Fuel Economy (ECON) Mode is engaged, the
vehicle control systems will change the following:
•
The transmission will upshift sooner and downshift
later.
• The transmission will skip select gears during shifts to
allow the engine to operate at lower speeds.
• The torque converter clutch may engage at lower
engine speeds and remain on longer.
• The engine idle speed will be lower.
• The overall driving performance will be more conser-
vative.
• Some ECON mode functions may be temporarily
inhibited based on temperature and other factors.
Fuel Economy Mode Switch
5
STARTING AND OPERATING 445

DRIVE (D)
This range should be used for most city and highway
driving. It provides the smoothest upshifts and down-
shifts, and the best fuel economy. The transmission
automatically upshifts through all forward gears. The
DRIVE position provides optimum driving characteris-
tics under all normal operating conditions.
When frequent transmission shifting occurs (such as
when operating the vehicle under heavy loading condi-
tions, in hilly terrain, traveling into strong head winds, or
while towing heavy trailers), use the Electronic Range
Select (ERS) shift control (refer toElectronic Range Select
(ERS) Operation in this section for further information)
to select a lower gear range. Under these conditions,
using a lower gear range will improve performance and
extend transmission life by reducing excessive shifting
and heat buildup. 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.
5
STARTING AND OPERATING 451

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 nolonger detected, the transmission will return to normal
operation. NOTE:
Even if the transmission can be reset, we recom-
mend that you visit your authorized dealer at your
earliest possible convenience. Your authorized dealer has
diagnostic equipment to determine if the problem could
recur.
If the transmission cannot be reset, authorized dealer
service is required.
Electronic Range Select (ERS) Operation
The Electronic Range Select (ERS) shift control allows the
driver to limit the highest available gear when the
transmission is in DRIVE. For example, if you shift the
transmission into 4 (fourth gear), the transmission will
not shift above fourth gear (except to prevent engine
overspeed), but will shift through the lower gears nor-
mally.
452 STARTING AND OPERATING

NOTE:To improve the vehicle’s traction when driving
with snow chains, or starting off in deep snow, sand or
gravel, it may be desirable to switch to the “Partial Off”
mode by pressing the “ESC Off” switch. Once the situa-
tion requiring ESC to be switched to the “Partial Off”
mode is overcome, turn ESC back on by momentarily
pressing the “ESC Off” switch. This may be done while
the vehicle is in motion.
ESC Activation/Malfunction Indicator Light And
ESC OFF Indicator Light
The “ESC Activation/Malfunction Indicator
Light” in the instrument cluster will come on
when the ignition switch is turned to the ON
position. It should turn off with the engine
running. If the “ESC Activation/Malfunction Indicator
Light” comes on continuously with the engine running, a
malfunction has been detected in the ESC system. If this
light remains on after several ignition cycles, and the vehicle has been driven several miles (kilometers) at
speeds greater than 30 mph (48 km/h), see your autho-
rized dealer as soon as possible to have the problem
diagnosed and corrected.
The “ESC Activation/Malfunction Indicator Light” (lo-
cated in the instrument cluster) starts to flash as soon as
the tires lose traction and the ESC system becomes active.
The “ESC Activation/Malfunction Indicator Light” also
flashes when TCS is active. If the “ESC Activation/
Malfunction Indicator Light” begins to flash during ac-
celeration, ease up on the accelerator and apply as little
throttle as possible. Be sure to adapt your speed and
driving to the prevailing road conditions.
NOTE:
•
The “ESC Activation/Malfunction Indicator Light”
and the “ESC OFF Indicator Light” come on momen-
tarily each time the ignition switch is turned ON.
470 STARTING AND OPERATING