tow Ram ProMaster City 2015 Service Manual

Consider the following items when computing the
weight on the rear axle of the vehicle:
•The tongue weight of the trailer.
• The weight of any other type of cargo or equipment
put in or on your vehicle.
• The weight of the driver and all passengers.
NOTE: Remember that everything put into or on the
trailer adds to the load on your vehicle. Also, additional
factory-installed options or dealer-installed options must
be considered as part of the total load on your vehicle.
Refer to the “Tire And Loading Information” placard for
the maximum combined weight of occupants and cargo
for your vehicle.Towing Requirements
To promote proper break-in of your new vehicle drive-
train components, the following guidelines are recom-
mended.
CAUTION!
• Do not tow a trailer at all during the first 500 miles
(805 km) the new vehicle is driven. The engine, axle
or other parts could be damaged.
• Then, during the first 500 miles (805 km) that a
trailer is towed, do not drive over 50 mph (80 km/h)
and do not make starts at full throttle. This helps
the engine and other parts of the vehicle wear in at
the heavier loads.5
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Perform the maintenance listed in the “Maintenance
Schedule.” Refer to “Maintenance Schedule” for the
proper maintenance intervals. When towing a trailer,
never exceed the GAWR or GCWR ratings.
WARNING!
Improper towing can lead to a collision. Follow these
guidelines to make your trailer towing as safe as
possible:
•Make certain that the load is secured in the trailer
and will not shift during travel. When trailering
cargo that is not fully secured, dynamic load shifts
can occur that may be difficult for the driver to
control. You could lose control of your vehicle and
have a collision.
• When hauling cargo or towing a trailer, do not
overload your vehicle or trailer. Overloading can
(Continued)
WARNING! (Continued)
cause a loss of control, poor performance or dam-
age to brakes, axle, engine, transmission, steering,
suspension, chassis structure or tires.
• Safety chains must always be used between your
vehicle and trailer. Always connect the chains to
the hook retainers of the vehicle hitch. Cross the
chains under the trailer tongue and allow enough
slack for turning corners.
• Vehicles with trailers should not be parked on a
grade. When parking, apply the parking brake on
the tow vehicle. Put the tow vehicle transmission in
PARK. For four-wheel drive vehicles, make sure
the transfer case is not in NEUTRAL. Always,
block or chockthe trailer wheels.
• GCWR must not be exceeded.
(Continued)
276 STARTING AND OPERATING

WARNING!(Continued)
•Total weight must be distributed between the tow
vehicle and the trailer such that the following four
ratings are not exceeded:
1. GVWR
2. GTW
3. GAWR
4. Tongue weight rating for the trailer hitch uti-
lized.
Towing Requirements — Tires
• Do not attempt to tow a trailer while using a compact
spare tire. •
Proper tire inflation pressures are essential to the safe
and satisfactory operation of your vehicle. Refer to
“Tires – General Information” in “Starting And Oper-
ating” for proper tire inflation procedures.
• Check the trailer tires for proper tire inflation pres-
sures before trailer usage.
• Check for signs of tire wear or visible tire damage
before towing a trailer. Refer to “Tires – General
Information” in “Starting And Operating” for the
proper inspection procedure.
• When replacing tires, refer to “Tires – General Infor-
mation” in “Starting And Operating” for the proper
tire replacement procedures. Replacing tires with a
higher load carrying capacity will not increase the
vehicle’s GVWR and GAWR limits.
5
STARTING AND OPERATING 277

Towing Requirements — Trailer Brakes
•Do not interconnect the hydraulic brake system or
vacuum system of your vehicle with that of the trailer.
This could cause inadequate braking and possible
personal injury.
• An electronically actuated trailer brake controller is
required when towing a trailer with electronically
actuated brakes. When towing a trailer equipped with
a hydraulic surge actuated brake system, an electronic
brake controller is not required.
• Trailer brakes are recommended for trailers over
1,000 lbs (454 kg) and required for trailers in excess of
2,000 lbs (907 kg).
WARNING!
• Do not connect trailer brakes to your vehicle’s
hydraulic brake lines. It can overload your brake
system and cause it to fail. You might not have
brakes when you need them and could have a
collision.
• Towing any trailer will increase your stopping
distance. When towing you should allow for addi-
tional space between your vehicle and the vehicle
in front of you. Failure to do so could result in a
collision.
278 STARTING AND OPERATING

CAUTION!
If the trailer weighs more than 1,000 lbs (454 kg)
loaded, it should have its own brakes and they
should be of adequate capacity. Failure to do this
could lead to accelerated brake lining wear, higher
brake pedal effort, and longer stopping distances.
Towing Requirements — Trailer Lights And Wiring
Whenever you pull a trailer, regardless of the trailer size,
stoplights and turn signals on the trailer are required for
motoring safety.
The Trailer Tow Package may include a four- and seven-
pin wiring harness. Use a factory approved trailer har-
ness and connector.NOTE:Do not cut or splice wiring into the vehicles
wiring harness.
Trailer Electrical Connector Location
1 — Four-Pin Connector Location
2 — Seven-Pin Connector Location
5
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Towing Tips
Before setting out on a trip, practice turning, stopping,
and backing up the trailer in an area located away from
heavy traffic.
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
shifting does occur while in DRIVE, use the Electronic
Range Select (ERS) shift control to select a lower gear
range.NOTE:
Using a lower gear range while operating the
vehicle under heavy loading conditions will improve
performance and extend transmission life by reducing
excessive shifting and heat build up. This action will also
provide better engine braking.Electronic Range Select (ERS)
• When using the ERS shift control, select the highest
gear that allows for adequate performance and avoids
frequent downshifts. For example, choose “5” if the
desired speed can be maintained. Choose “4” or “3” if
needed to maintain the desired speed.
• To prevent excess heat generation, avoid continuous
driving at high RPM. Reduce vehicle speed as neces-
sary to avoid extended driving at high RPM. Return to
a higher gear range or vehicle speed when grade and
road conditions allow.5
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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 recreationally towing your vehicle, always
follow applicable state and provincial laws. Contact state
and provincial Highway Safety offices for additional
details.
5
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Recreational Towing — Automatic Transmission
Recreational towing is allowed ONLY if 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, followingthe dolly manufacturer’s instructions.
2. Drive the front wheels onto the tow dolly.
3. Firmly apply the parking brake. Place the transmis- sion in PARK.
4. Properly secure the front wheels to the dolly, following the dolly manufacturer’s instructions.
5. Release the parking brake.
CAUTION!
• DO NOT flat tow this vehicle. Damage to the
drivetrain will result. If this vehicle requires tow-
ing, make sure the drive wheels are OFF the
ground.
• Towing this vehicle in violation of the above re-
quirements can cause severe transmission damage.
Damage from improper towing is not covered un-
der the New Vehicle Limited Warranty.
284 STARTING AND OPERATING

WHAT TO DO IN EMERGENCIES
CONTENTS
HAZARD WARNING FLASHERS ...........287
 IF YOUR ENGINE OVERHEATS ............287
 WHEEL AND TIRE TORQUE
SPECIFICATIONS ..................... .288
▫ Torque Specifications ...................289
 TIRE SERVICE KIT — IF EQUIPPED .........290
▫ Tire Service Kit Storage — If Equipped ......291
▫ Tire Service Kit Usage ..................291
 JACKING AND TIRE CHANGING — IF
EQUIPPED .......................... .295▫
Jack Location ........................ .295
▫ Removing The Spare Tire ................296
▫ Preparations For Jacking ................300
▫ Jacking Instructions ....................300
▫ Vehicles Equipped With Wheel Covers .......310
 JUMP-STARTING PROCEDURES ...........311
▫ Preparations For Jump-Start ..............312
▫ Jump-Starting Procedure ................313
 FREEING A STUCK VEHICLE .............315
 TOW EYE USAGE — IF EQUIPPED ..........317
6

▫Front Tow Eye Installation ...............319
▫ Rear Tow Eye Installation ................319
 TOWING A DISABLED VEHICLE ...........320
SHIFT LEVER OVERRIDE ................321
 IGNITION KEY REMOVAL OVERRIDE .......323
286 WHAT TO DO IN EMERGENCIES