2017 Ram ProMaster trailer

On steep hills, a greater speed loss or gain may occur so it
may be preferable to drive without Electronic Speed Con-
trol.
WARNING!
Electronic Speed Control can be dangerous where the
system cannot maintain a constant speed. Your vehicle
could go too fast for the conditions, and you could lose
control and have an accident. Do not use Electronic
Speed Control in heavy traffic or on roads that are
winding, icy, snow-covered or slippery.
PARKSENSE REAR PARK ASSIST — IF EQUIPPED
The ParkSense Rear Park Assist system provides an au-
dible indication of the distance between the rear fascia/
bumper and a detected obstacle when backing up, e.g.
during a parking maneuver. Refer to ParkSense System
Usage Precautions for limitations of this system and rec-
ommendations.The ParkSense Rear Park Assist is automatically activated
when the transmission is placed into REVERSE. As the
distance from an obstacle behind the vehicle decreases, the
audible alert becomes more frequent.
Interaction With Trailer Towing
The Rear Park Assist system is automatically deactivated
when a trailer is hitched to the vehicle. The system will be
automatically activated as soon as the trailer is removed.
ParkSense Rear Park Assist Sensors
The four ParkSense Rear Park Assist sensors, located in the
rear fascia/bumper, monitor the area behind the vehicle
that is within the sensors’ field of view. The sensors can
detect obstacles, in the horizontal direction, from approxi-
mately 12 inches (30 cm) up to 55 inches (140 cm) from the
center of the rear fascia/bumper and up to 24 inches
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 85

STARTING AND OPERATING
CONTENTS
STARTING PROCEDURES .................176
▫ Automatic Transmission — If Equipped ......176
▫ Normal Starting ....................... .176
▫ Extreme Cold Weather (Below –22°F Or 30°C) .176
▫ If Engine Fails To Start ..................176
▫ After Starting ......................... .177
 ENGINE BLOCK HEATER — IF EQUIPPED . . . .177
 AUTOMATIC TRANSMISSION ..............177
▫ Key Ignition Park Interlock ................178
▫ Brake/Transmission Shift Interlock System . . . .179
▫ Six-Speed Automatic Transmission ...........179
 DRIVING ON SLIPPERY SURFACES ..........186
▫ Acceleration .......................... .186
▫ Traction ............................ .186
DRIVING THROUGH WATER ..............187
▫ Flowing/Rising Water ...................187
▫ Shallow Standing Water ..................187
 POWER STEERING ..................... .188
▫ Power Steering Fluid Check ...............189
 PARKING BRAKE ...................... .189
 BRAKE SYSTEM ....................... .191
 ELECTRONIC BRAKE CONTROL SYSTEM .....191
▫ Four-Wheel Anti-Lock Brake System (ABS) . . . .191
▫ Traction Control System (TCS) .............192
▫ Brake Assist System (BAS) ................193
▫ Electronic Stability Control (ESC) ...........193
▫ Trailer Sway Control (TSC) ................196
▫ Hill

Start Assist (HSA) ...................197
5

ADDING FUEL ........................ .227
▫ Fuel Filler Cap (Gas Cap) .................227
▫ Loose Fuel Filler Cap Message .............228
 VEHICLE LOADING .....................228
▫ Vehicle Certification Label ................228 
TRAILER TOWING ..................... .230
▫ Common Towing Definitions ...............230
▫ Towing Tips ......................... .238
 RECREATIONAL TOWING (BEHIND
MOTORHOME, ETC.) ....................239
▫ Towing This Vehicle Behind Another Vehicle . . .239
▫ Recreational Towing —
Automatic Transmission ..................240
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STARTING AND OPERATING 175

upshifts through all forward gears. The DRIVE position
provides optimum driving characteristics under all normal
operating conditions.
When frequent transmission shifting occurs (such as when
operating the vehicle under heavy loading conditions, in
hilly terrain, traveling into strong head winds, or while
towing a heavy trailer), select Tow/Haul mode or use the
Electronic Range Select (ERS) shift control (refer toElec-
tronic 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 tempera-
ture as well as vehicle speed. This feature improves warm
up time of the engine and transmission to achieve maxi-
mum 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 sec-
tion). During extremely cold temperatures (-16°F [-27°C] or
below), operation may briefly be limited to third gear only.
Normal operation will resume once the transmission tem-
perature has risen to a suitable level. Transmission Limp Home Mode
Transmission function is monitored electronically for ab-
normal 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 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 trans-
mission.
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 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.
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STARTING AND OPERATING 183

NOTE:To select the proper gear position for maximum
deceleration (engine braking), move the gear selector into
the ERS position, then tap it forward (-) repeatedly as the
vehicle slows. The transmission will shift to the range from
which the vehicle can best be slowed down.
Overdrive Operation
The automatic transmission includes an electronically con-
trolled Overdrive (sixth gear). The transmission will auto-
matically shift into Overdrive if the following conditions
are present:
• The gear selector is in the DRIVE position.
• The transmission fluid has reached an adequate tem-
perature.
• The engine coolant has reached an adequate tempera-
ture.
• The vehicle speed is sufficiently high.
• The driver is not heavily pressing the accelerator.
When To Use TOW/HAUL Mode
When driving in hilly areas, towing a trailer, carrying a
heavy load, etc., and frequent transmission shifting occurs,
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 transmission
will automatically downshift (for engine braking) 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 automatically
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.
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STARTING AND OPERATING 185

CAUTION!
If the Brake Warning Light remains on with the park-
ing brake released, a brake system malfunction is
indicated. Have the brake system serviced by an au-
thorized dealer immediately.
BRAKE SYSTEM
Your vehicle is equipped with dual hydraulic brake sys-
tems. If either of the two hydraulic systems loses normal
capability, the remaining system will still function. How-
ever, there will be some loss of overall braking effective-
ness. You may notice increased pedal travel during appli-
cation, greater pedal force required to slow or stop, and
potential activation of the “Brake System Warning Light”.
In the event power assist is lost for any reason (i.e.,
repeated brake applications with the engine off), the brakes
will still function. However, the effort required to brake the
vehicle will be much greater than that required with the
power system operating.
ELECTRONIC BRAKE CONTROL SYSTEM
Your vehicle is equipped with an advanced electronic
brake control system that includes the Traction Control
System (TCS), Brake Assist System (BAS) and Electronic
Stability Control (ESC), Trailer Sway Control (TSC), and
Hill Start Assist (HSA). These systems complement the
Anti-Lock Brake System (ABS) by optimizing the vehicle
braking capability during emergency braking maneuvers.
Four-Wheel Anti-Lock Brake System (ABS)
The Four-Wheel ABS is designed to aid the driver in
maintaining vehicle control under adverse braking condi-
tions. The system operates with a separate computer to
modulate hydraulic pressure, to prevent wheel lock-up
and to help avoid skidding on slippery surfaces.
The system’s pump motor runs during an ABS stop to
provide regulated hydraulic pressure. The pump motor
makes a low humming noise during operation, which is
normal.
The ABS includes an amber ABS Warning Light. When the
light is illuminated, the ABS is not functioning. The system
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STARTING AND OPERATING 191

ESC Partial Off
This mode is entered by momentarily pushing the “ESC
Off” switch.
When in the “Partial Off” mode, the TCS portion of ESC,
except for the “limited slip” feature described in the TCS
section, has been disabled and the “ESC OFF Indicator
Light” will be illuminated. When in the “Partial Off” mode,
ESC will operate without engine torque management. This
mode is intended to be used if the vehicle is in deep snow,
sand or gravel conditions and more wheel spin than ESC
would normally allow is required to gain traction. To turn
ESC on again, momentarily push the “ESC Off” switch.
This will restore the normal “ESC On” mode of operation.
WARNING!
•When in Partial Off mode, the TCS functionality of
ESC, (except for the limited slip feature described in
the TCS section), has been disabled and the ESC Off
Indicator Light will be illuminated. When in Partial
Off mode, the engine power reduction feature of
TCS is disabled, and the enhanced vehicle stability
offered by the ESC system is reduced.
(Continued)
WARNING! (Continued)
•Trailer Sway Control (TSC) is disabled when the ESC
system is in the Partial Offmode.
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 pushing the “ESC Off” switch. Once the situation
requiring ESC to be switched to the “Partial Off” mode is
overcome, turn ESC back on by momentarily pushing 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
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STARTING AND OPERATING 195

speeds greater than 30 mph (48 km/h), see your authorized
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 acceleration, 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 momentarily
each time the ignition switch is turned ON.
• Each time the ignition is turned ON, the ESC system will
be ON even if it was turned off previously.
• The ESC system will make buzzing or clicking sounds
when it is active. This is normal; the sounds will stop when ESC becomes inactive following the maneuver
that caused the ESC activation.
The “ESC OFF Indicator Light” indicates the
Electronic Stability Control (ESC) is off.
Trailer Sway Control (TSC)
TSC uses sensors in the vehicle to recognize an excessively
swaying trailer and will take the appropriate actions to
attempt to stop the sway. The system may reduce engine
power and apply the brake of the appropriate wheel(s) to
counteract the sway of the trailer. TSC will become active
automatically once an excessively swaying trailer is recog-
nized. Note that TSC cannot stop all trailers from swaying.
Always use caution when towing a trailer and follow the
trailer tongue weight recommendations. Refer to “Trailer
Towing” in this section for further information. When TSC
is functioning, the “ESC Activation/Malfunction Indicator
Light” will flash, the engine power may be reduced and
you may feel the brakes being applied to individual wheels
to attempt to stop the trailer from swaying. TSC is disabled
when the ESC system is in the “Partial Off” mode.
196 STARTING AND OPERATING