2018 Ram ProMaster City light

may be required depending on vehicle and trailer
configuration/loading to comply with Gross Axle Weight
Rating (GAWR) requirements.
WARNING!
•An improperly adjusted Weight Distributing Hitch
system may reduce handling, stability, braking per-
formance, and could result in a collision.
• Weight Distributing Systems may not be compatible
with Surge Brake Couplers. Consult with your hitch
(Continued)
WARNING! (Continued)
and trailer manufacturer or a reputable Recreational
Vehicle dealer for additional information.
Trailer Hitch Classification
The following chart provides the industry standard for the
maximum trailer weight a given trailer hitch class can tow
and should be used to assist you in selecting the correct
trailer hitch for your intended towing condition.
Trailer Hitch Classification Definitions
Class Max. Trailer Hitch Industry Standards
Class I - Light Duty 2,000 lbs (907 kg)
Class II - Medium Duty 3,500 lbs (1,587 kg)
Class III - Heavy Duty 5,000 lbs (2,267 kg)
Class IV - Extra Heavy Duty 10,000 lbs (4,535 kg)
Refer to the “Trailer Towing Weights (Maximum Trailer Weight Ratings)” chart for the Maximum Gross Trailer Weight
(GTW) towable for your given drivetrain.
All trailer hitches should be professionally installed on your vehicle.
184 STARTING AND OPERATING

CAUTION!
If the trailer weighs more than 1,000 lbs (453 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 harness and
connector.
NOTE:Do not cut or splice wiring into the vehicle’s wiring
harness.
The electrical connections are all complete to the vehicle
but you must mate the harness to a trailer connector. Refer
to the following illustrations. NOTE:
•
Disconnect trailer wiring connector from the vehicle
before launching a boat (or any other device plugged
into vehicle’s electrical connect) into water.
• Be sure to reconnect after clear from water area.
Four-Pin Connector
1 — Female Pins 4 — Park
2 — Male Pin 5 — Left Stop/Turn
3 — Ground 6 — Right Stop/Turn
188 STARTING AND OPERATING

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.
190 STARTING AND OPERATING

Flowing/Rising Water
WARNING!
Do not drive on or across a road or path where water is
flowing and/or rising (as in storm run-off). Flowing
water can wear away the road or path’s surface and
cause your vehicle to sink into deeper water. Further-
more, flowing and/or rising water can carry your ve-
hicle away swiftly. Failure to follow this warning may
result in injuries that are serious or fatal to you, your
passengers, and others around you.
Shallow Standing Water
Although your vehicle is capable of driving through shal-
low standing water, consider the following Cautions and
Warnings before doing so.
WARNING!
•Driving through standing water limits your vehicle’s
traction capabilities. Do not exceed 5 mph (8 km/h)
when driving through standing water.
(Continued)
WARNING! (Continued)
•Driving through standing water limits your vehicle’s
braking capabilities, which increases stopping dis-
tances. Therefore, after driving through standing
water, drive slowly and lightly press on the brake
pedal several times to dry the brakes.
• Failure to follow these warnings may result in inju-
ries that are serious or fatal to you, your passengers,
and others around you.
CAUTION!
• Always check the depth of the standing water before
driving through it. Never drive through standing
water that is deeper than the bottom of the tire rims
mounted on the vehicle.
• Determine the condition of the road or the path that
is under water and if there are any obstacles in the
way before driving through the standing water.
• Do not exceed 5 mph (8 km/h) when driving through
standing water. This will minimize wave effects.
(Continued)
6
STARTING AND OPERATING 193

LampsBulb Number
Rear Tail Lamps P21/5W
Rear Side Marker Lamps LED (See your authorized dealer)
Center Mount Brake
Lamp W5W
Reverse Light W16W
Front Fog Lamps H11
NOTE: Numbers refer to commercial bulb types that
can be purchased from your authorized dealer.
If a bulb needs to be replaced, visit your authorized
dealer or refer to the applicable Service Manual.
Replacing Exterior Bulbs
Headlamps
To change the bulb, proceed as follows:
1. Remove the plastic cap from the back of the headlamp housing.
2. Rotate the bulb counter-clockwise.
3. Remove the bulb and replace as needed.
4. Install the bulb and rotate clockwise to lock in place. 5. Reinstall the plastic cap.
Front Turn Signal Lamps
Front
To change the bulb, proceed as follows:
1. Remove the cap from the back of the outer upper
headlamp housing.
2. Rotate the bulb counter clockwise and remove.
3. Install the bulb into socket.
4. Rotate bulb/socket clockwise into lamp locking it in place.
5. Reinstall the plastic cap.
Parking And Daytime Running Lights
To change the bulb, proceed as follows:
1. Remove the cap from the back of the outer lower headlamp housing.
2. Rotate the bulb counter clockwise and remove.
3. Install the bulb into socket, and rotate bulb/socket clockwise into lamp locking it in place.
4. Reinstall the plastic cap.
198 IN CASE OF EMERGENCY

Front/Rear Side Marker Lamps
To change the bulb, proceed as follows:
The front/rear side marker lamps are LED and not ser-
viced separately. See your authorized dealer for replace-
ment of these lights.
Rear Tail, Stop, Backup And Turn Signal Lamps
The rear light clusters contain taillight, brake light, direc-
tion indicator and reverse/rear fog light bulbs. To access
the light clusters, proceed as follows:
1. Open the rear doors.
2. Remove the screws and remove the tail lamp assembly.
3. Remove the screws and separate the backplate from thelamp housing.
4. Remove the tail, stop, or turn signal bulbs by pushing them slightly and turning counter-clockwise.
5. Remove the backup lamp bulb by pulling straight out.
6. Replace lamps as required and reinstall lamp. The bulbs are arranged inside the light cluster as follows:
Third Brake Light (Center Mount)
To change the bulb, proceed as follows:
1. For versions with tailgate, loosen the two fastening
screws and extract the cluster.
2. For versions with swing doors, remove rubber plugs, remove retaining tabs and extract the cluster.
3. For versions with high roof and swing doors, remove the pressure-fit plastic guard and rubber cap using a
screwdriver, release the retaining tags as shown in the
figure and remove the unit.
4. Remove the appropriate tabs and remove the bulb holder.
5. Remove the snap-fitted bulb and replace it.
License Plate Lights
Proceed as follows to replace the bulbs:
1. Disengage the holding tabs and remove the lens by lifting to the left.
7
IN CASE OF EMERGENCY 199

2. Remove the bulbs by releasing them from the sidecontacts; insert the new bulbs and make sure they are
correctly clamped between these contacts.
Replacing Interior Bulbs
Dome Lamp With Spot Lights
To change the bulbs, proceed as follows:
1. Remove dome lamp by depressing the tabs located bythe arrows, using a suitable tool. 2. Open protective cover.
3. Replace the bulbs releasing them from the side contacts
making sure that the new bulbs are correctly secured
between the contacts.
4. Close the protective cover and reposition it back into its housing, making sure that it locks into place.
Dome Lamp Assembly
Dome Lamp
1 — Protective Cover
2 — Bulbs
200 IN CASE OF EMERGENCY

CavityMini Fuse Description
F43 15 Amp BlueBi-Directional Washer Pump
F48 20 Amp YellowPassenger Power Windows
F50 7.5 Amp BrownKL 15 (+15) - Air-Bag
F51 7.5 Amp BrownKL 15 (+15) - External Mirror Adjust-
ment Command, HVAC, RVC, HWB
Coils
F37 5 Amp BeigeKL 15 (+15) - Brake Pedal Switch
(N.O.), IPC, Brake Pedal Switch
(N.C.)
F49 5 Amp BeigeKL 15 (+15) - PAM, CSS Lighting,
TTM, SGW, and Heaters Light
F31 5 Amp BeigeKL 15a (INT A) - HWB, MCO
F47 20 Amp YellowDriver Power Windows
7
IN CASE OF EMERGENCY 207