automatic transmission Ram ProMaster 2019 User Guide

started in this range. Apply the parking brake and shift the
transmission into PARK if you must exit the vehicle.
WARNING!
Do not coast in NEUTRAL and never turn off the
ignition to coast down a hill. These are unsafe practices
that limit your response to changing traffic or road
conditions. You might lose control of the vehicle and
have a collision.
CAUTION!
Towing the vehicle, coasting, or driving for any other
reason with the transmission in NEUTRAL can cause
severe transmission damage.
Refer to “Recreational Towing” in “Starting And Op-
erating” and “Towing A Disabled Vehicle” in “In Case
Of Emergency” for further information.
DRIVE (D)
This range should be used for most city and highway
driving. It provides the smoothest upshifts and downshifts,
and the best fuel economy. The transmission automatically 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 to
Elec-
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.
146 STARTING AND OPERATING

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 OFF.
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 diagnos-
tic equipment to assess the condition of your transmission.
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. For example, if
you set the transmission gear limit to 4 (fourth gear), the
transmission will not shift above fourth gear, but will shift
through the lower gears normally.
You can switch between DRIVE and ERS mode at any
vehicle speed. When the gear selector is in the DRIVE
position, the transmission will operate automatically, shift-
ing between all available gears. Moving the gear selector to
the ERS position (beside DRIVE) will activate ERS mode,
display the current gear in the instrument cluster, and set
that gear as the top available gear. Once in ERS mode,
moving the gear selector forward (-) or rearward (+) will
change the top available gear.
To exit ERS mode, simply return the gear selector to the
DRIVE position.6
STARTING AND OPERATING 147

WARNING!
Do not downshift for additional engine braking on a
slippery surface. The drive wheels could lose their grip
(Continued)
WARNING!(Continued)
and the vehicle could skid, causing a collision or
personal injury.
Instrument
Cluster Dis-
play 123456D
Actual
Gear(s) Al- lowed 1
1–2 1–31–41–51–6 1–6
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
148 STARTING AND OPERATING

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.NOTE:
•
The torque converter clutch will not engage, until the
transmission fluid and engine coolant are warm [usually
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 transmission 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 Over-
drive.
• If the vehicle has not been driven for several days, the
first few seconds of operation after shifting the transmis-
sion into gear may seem sluggish. This is due to the fluid
partially draining from the torque converter into the
transmission. This condition is normal and will not
cause damage to the transmission. The torque converter
will refill within five seconds after starting the engine.
POWER STEERING
The standard power steering system will give you good
vehicle response and increased ease of maneuverability in
tight spaces. The system will provide mechanical steering
capability if power assist is lost.
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STARTING AND OPERATING 149

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
recommendations.
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 (60cm) from the corners of the rear fascia/bumper, depending
on the location, type and orientation of the obstacle.
If several obstacles are detected, the ParkSense Rear Park
Assist system indicates the nearest obstacle.
The minimum height of a detectable obstacle corresponds
to the maximum height of an obstacle that would clear the
underside of the vehicle during the parking maneuver.
ParkSense Rear Park Assist Alerts
If an obstacle is behind the vehicle when REVERSE gear is
engaged, an audible alert is activated.
Rear Park Assist Sensors Location
154 STARTING AND OPERATING

Automatic Transmission
The DRIVE range can be selected when towing. The
transmission controls include a drive strategy to avoid
frequent shifting when towing. However, if frequent shift-
ing does occur while in DRIVE, select TOW/HAUL mode
or select a lower gear range (using the Electronic Range
Select (ERS) shift control).
NOTE:Using TOW/HAUL mode or selecting a lower
gear range (using the ERS shift control) while operating the
vehicle under heavy loading conditions will improve per-
formance and extend transmission life by reducing exces-
sive shifting and heat build up. This action will also
provide better engine braking.
When towing a loaded trailer up steep grades at low
speeds, holding your vehicle in first gear (using the ERS
shift control) can help to avoid transmission overheating.
Tow/Haul Mode
To reduce potential for automatic transmission overheat-
ing, activate TOW/HAUL mode when driving in hilly
areas, or select a lower gear range (using the Electronic
Range Select (ERS) shift control) on more severe grades.
Speed Control — If Equipped
• Do not use on hilly terrain or with heavy loads.
• When using the speed control, if you experience speed
drops greater than 10 mph (16 km/h), disengage until
you can get back to cruising speed.
• Use speed control in flat terrain and with light loads to
maximize fuel efficiency.
Cooling System
To reduce potential for engine and transmission overheat-
ing, take the following actions:
City Driving
• In city traffic — while stopped, place the transmission in
NEUTRAL, but do not increase engine idle speed.
Highway Driving
• Reduce speed.
• Temporarily turn off air conditioning.
172 STARTING AND OPERATING

RECREATIONAL TOWING (BEHIND MOTORHOME, ETC.)
Towing This Vehicle Behind Another Vehicle
Towing ConditionWheels OFF the Ground Automatic Transmission
Flat Tow NONENOT ALLOWED
Dolly Tow FrontOK
Rear NOT ALLOWED
On Trailer ALLOK
NOTE: When towing your vehicle, always follow applicable state and provincial laws. Contact state and provincial
Highway Safety offices for additional details.
Recreational Towing
Recreational towing is allowed ONLYif the front wheels
are OFF the ground. This may be accomplished using a tow
dolly or vehicle trailer. If using a tow dolly, follow this
procedure:
1. Properly secure the dolly to the tow vehicle, following the dolly manufacturer’s instructions. 2. Drive the front wheels onto the tow dolly.
3. Firmly apply the parking brake. Place the transmission
in PARK.
4. Properly secure the front wheels to the dolly, following the dolly manufacturer’s instructions.
5. Release the parking brake.
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STARTING AND OPERATING 173

FREEING A STUCK VEHICLE ..............219
 TOWING A DISABLED VEHICLE ............220
▫ Automatic Transmission ..................221 
ENHANCED ACCIDENT RESPONSE SYSTEM
(EARS) .............................. .222
 EVENT DATA RECORDER (EDR) ............222
178 IN CASE OF EMERGENCY

structural members of the vehicle, not to bumpers or
associated brackets. State and local laws regarding vehicles
under tow must be observed.
If you must use the accessories (wipers, defrosters, etc.)
while being towed, the ignition must be in the ON/RUN
mode.
If the key fob is unavailable or the vehicle’s battery is
discharged, refer to “Gear Selector Override” in this section
for instructions on shifting the automatic transmission out
of PARK for towing.
CAUTION!
•Do not use sling type equipment when towing.
Vehicle damage may occur.
• When securing the vehicle to a flat bed truck, do not
attach to front or rear suspension components. Dam-
age to your vehicle may result from improper towing.
Automatic Transmission
The manufacturer recommends towing your vehicle with
all four wheels OFFthe ground using a flatbed. If flatbed equipment is not available, and the transmission
is operable, this vehicle may be towed (with front wheels
on the ground) under the following conditions:
•
The transmission must be in NEUTRAL.
• The towing speed must not exceed 25 mph (40 km/h).
• The towing distance must not exceed 15 miles (24 km).
If the transmission is not operable, or the vehicle must be
towed faster than 25 mph (40 km/h) or farther than 15
miles (24 km), tow with the front wheels OFFthe ground
(using a flatbed truck, or wheel lift equipment with the
front wheels raised).
CAUTION!
• Towing faster than 25 mph (40 km/h) or farther than
15 miles (24 km) with front wheels on the ground can
cause severe transmission damage. Damage from
improper towing is not covered under the New
Vehicle Limited Warranty.
• Towing this vehicle in violation of the above require-
ments can cause severe transmission damage. Dam-
age from improper towing is not covered under the
New Vehicle Limited Warranty.
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IN CASE OF EMERGENCY 221

SERVICING AND MAINTENANCE
CONTENTS
SCHEDULED SERVICING .................225
▫ Maintenance Plan ..................... .226
▫ Heavy Duty Use Of The Vehicle ............228
 ENGINE COMPARTMENT .................229
▫ 3.6L Engine ......................... .229
▫ Checking Oil Level — Gas Engine ...........230
▫ Adding Washer Fluid ...................230
▫ Maintenance-Free Battery .................230
 DEALER SERVICE ...................... .231
▫ Engine Oil .......................... .232
▫ Engine Oil Filter ...................... .233
▫ Engine Air Cleaner Filter .................233
▫ Air Conditioner Maintenance ..............234
▫ Body Lubrication ..................... .236▫
Windshield Wiper Blades .................236
▫ Exhaust System ....................... .237
▫ Cooling System ....................... .238
▫ Brake System ........................ .243
▫ Automatic Transmission (3.6L Gasoline Engine
Only) .............................. .244
 RAISING THE VEHICLE ..................245
 TIRES ............................... .245
▫ Tire Safety Information ..................245
▫ Tires — General Information ..............254
▫ Tire Types ........................... .261
▫ Spare Tires — If Equipped ................262
▫ Wheel
And Wheel Trim Care ..............265
▫ Tire Chains (Traction Devices) .............266
8