Page 76 of 280

74STARTING AND OPERATING  
When displayed, static grid lines will illustrate 
the width of the vehicle and will show separate 
zones that will help indicate the distance to the 
rear of the vehicle. The following table shows 
the approximate distances for each zone:
NOTE:
If snow, ice, mud, or any foreign substance 
builds up on the camera lens, clean the lens, 
rinse with water, and dry with a soft cloth. Do 
not cover the lens.
REFUELING THE VEHICLE 
The gas cap is located on the left side of the 
vehicle. If the gas cap is lost or damaged, be 
sure the replacement cap is for use with this 
vehicle.
1. Open the fuel filler door.
2. Remove the fuel cap by rotating it counter
-
clockwise.
Fuel Filler Cap
NOTE:
The driver's side sliding door cannot be opened 
while the fuel door is open. This feature oper -
ates only when the sliding door is in a closed 
position prior to opening the fuel door.
3. Fully insert the gasoline nozzle into the filler  pipe.
Zone
Distance To The Rear 
Of The Vehicle
Red 0 - 1 ft (0 - 30 cm)
Yellow 1 ft - 3 ft (30 cm - 1 m)
Green 3 ft or greater 
(1 m or greater)
WARNING!
Drivers must be careful when backing up 
even when using the ParkView Rear Back Up 
Camera. Always check carefully behind your 
vehicle, and be sure to check for pedestrians, 
animals, other vehicles, obstructions, or blind 
spots before backing up. You are responsible 
for the safety of your surroundings and must 
continue to pay attention while backing up. 
Failure to do so can result in serious injury or 
death.
CAUTION!
To avoid vehicle damage, ParkView should 
only be used as a parking aid. The ParkView 
camera is unable to view every obstacle or 
object in your drive path.
To avoid vehicle damage, the vehicle must 
be driven slowly when using ParkView to be 
able to stop in time when an obstacle is 
seen. It is recommended that the driver 
look frequently over his/her shoulder when 
using ParkView.
21_VM_OM_EN_USC_t.book  Page 74   
     
        
        Page 79 of 280

STARTING AND OPERATING77
TRAILER TOWING  
In this section you will find safety tips and 
information on limits to the type of towing you 
can reasonably do with your vehicle. Before 
towing a trailer, carefully review this information 
to tow your load as efficiently and safely as 
possible.
To maintain the New Vehicle Limited Warranty 
coverage, follow the requirements and 
recommendations in this manual concerning 
vehicles used for trailer towing.
Common Towing Definitions
The following trailer towing related definitions 
will assist you in understanding the following 
information:
Gross Vehicle Weight Rating (GVWR) 
The GVWR is the total allowable weight of your 
vehicle. This includes driver, passengers, cargo 
and tongue weight. The total load must be 
limited so that you do not exceed the GVWR  
Úpage 75.
Gross Combination Weight Rating (GCWR)
The GCWR is the total allowable weight of your 
vehicle and trailer when weighed in 
combination.
Gross Trailer Weight (GTW)
The GTW is the weight of the trailer plus the 
weight of all cargo, consumables and 
equipment (permanent or temporary) loaded in 
or on the trailer in its "loaded and ready for 
operation" condition.
The recommended way to measure GTW is to 
put your fully loaded trailer on a vehicle scale. 
The entire weight of the trailer must be 
supported by the scale.
Gross Axle Weight Rating (GAWR) 
The GAWR is the maximum capacity of the front 
and rear axles. Distribute the load over the front 
and rear axles evenly. Make sure that you do 
not exceed either front or rear GAWR  
Úpage 75.
Tongue Weight (TW)
The TW is the downward force exerted on the 
hitch ball by the trailer. You must consider this 
as part of the load on your vehicle.
Trailer Frontal Area
The frontal area is the maximum height 
multiplied by the maximum width of the front of 
a trailer.
Trailer Sway Control (TSC)
The TSC can be a mechanical telescoping link 
that can be installed between the hitch receiver 
and the trailer tongue that typically provides 
adjustable friction associated with the 
telescoping motion to dampen any unwanted 
trailer swaying motions while traveling.
If equipped, the electronic TSC recognizes a 
swaying trailer and automatically applies 
individual wheel brakes and/or reduces engine 
power to attempt to eliminate the trailer sway.
Weight-Carrying Hitch
A weight-carrying hitch supports the trailer 
tongue weight, just as if it were luggage located 
at a hitch ball or some other connecting point of 
the vehicle. These kinds of hitches are commonly 
used to tow small and medium sized trailers.
WARNING!
It is important that you do not exceed the 
maximum front or rear GAWR. A dangerous 
driving condition can result if either rating is 
exceeded. You could lose control of the 
vehicle and have a collision.
4
21_VM_OM_EN_USC_t.book  Page 77   
     
        
        Page 236 of 280

234SERVICING AND MAINTENANCE  
This connector is supplied to the upfitter when 
the vehicle is ordered with the applicable 
package.
For additional questions about these 
connectors as well as general technical 
questions about upfitting your Ram product, 
refer to https://www.ramtrucks.com/
ram-commercial/body-builders-guide.html/ or 
call 1 (866)-205-4102.
TIRES
Tire Safety Information   
Tire safety information will cover aspects of the 
following information: Tire Markings, Tire 
Identification Numbers, Tire Terminology and 
Definitions, Tire Pressures, and Tire Loading.
Tire Markings 
Tire Markings
NOTE:
P (Passenger) — Metric tire sizing is based on 
US design standards. P-Metric tires have the 
letter “P” molded into the sidewall preceding 
the size designation. Example: P215/65R15 
95H.
European — Metric tire sizing is based on 
European design standards. Tires designed 
to this standard have the tire size molded 
into the sidewall beginning with the section 
width. The letter "P" is absent from this tire 
size designation. Example: 215/65R15 96H.
LT (Light Truck) — Metric tire sizing is based 
on US design standards. The size designation 
for LT-Metric tires is the same as for P-Metric 
tires except for the letters “LT” that are 
molded into the sidewall preceding the size 
designation. Example: LT235/85R16.
Temporary spare tires are designed for 
temporary emergency use only. Temporary 
high pressure compact spare tires have the 
letter “T” or “S” molded into the sidewall 
preceding the size designation. Example: 
T145/80D18 103M.
High flotation tire sizing is based on US 
design standards and it begins with the tire 
diameter molded into the sidewall. Example: 
31x10.5 R15 LT.
CAUTION!
The maximum current load allowed is 15 amps 
for continuous use.
1 — US DOT Safety Standards Code (TIN)
2 — Size Designation
3 — Service Description
4 — Maximum Load
5 — Maximum Pressure
6 — Treadwear, Traction and Tempera -
ture Grades
21_VM_OM_EN_USC_t.book  Page 234   
     
        
        Page 237 of 280
SERVICING AND MAINTENANCE235
Tire Sizing Chart 
EXAMPLE:
Example Size Designation: P215/65R15XL 95H, 215/65R15 96H, LT235/85R16C, T145/80D18 103M, 31x10.5 R15 LT
P = Passenger car tire size based on US design standards, or
"....blank...." = Passenger car tire based on European design standards, or
LT  = Light truck tire based on US design standards, or
T or S  = Temporary spare tire or
31  = Overall diameter in inches (in)
215, 235, 145  = Section width in millimeters (mm)
65, 85, 80  = Aspect ratio in percent (%) 
Ratio of section height to section width of tire, or
10.5  = Section width in inches (in)
R = Construction code 
"R" means radial construction, or
"D" means diagonal or bias construction
15, 16, 18  = Rim diameter in inches (in)8
21_VM_OM_EN_USC_t.book  Page 235