STARTING AND OPERATING -> Trailer Towing for Your Ram Pickup 1500 Light Truck 2023

STARTING AND OPERATING 171  
4. When the fuel nozzle “clicks” or shuts off, the fuel  
tank is full.  
REFUELING THE VEHICLE  
The capless fuel filler is located on the left side of the  
vehicle.  
5. Keep the nozzle in the filler for five seconds after  
nozzle clicks to allow fuel to drain from the nozzle.  
The capless system is sealed by two flapper doors.  
6. Remove the fuel filler nozzle.  
7. To close the fuel filler door, push the center-rear edge  
(3 o’clock position) of the fuel filler door and then  
release. The fuel filler door will latch closed.  
WARNING!  
Never have any smoking materials lit in or near the  
vehicle when the fuel door is open or the tank is  
being filled.  
NOTE:  
In certain cold conditions, ice may prevent the fuel filler  
door from opening. If this occurs, lightly push on the fuel  
filler door around the perimeter to break the ice build up.  
Fuel Filler Door  
Never add fuel when the engine is running. This is in  
violation of most state and federal fire regulations  
and may cause the MIL to turn on.  
4
3. Insert the fuel nozzle fully into the filler pipe, the  
nozzle opens and holds both flapper doors while  
refueling.  
WARNING!  
A fire may result if gasoline is pumped into a portable  
container that is inside of a vehicle. You could be  
burned. Always place gas containers on the ground  
while filling.  
Always place container on the ground before filling.  
Keep the pump nozzle in contact with the container  
when you are filling it.  
Use only approved containers for flammable liquid.  
Do not leave container unattended while filling.  
CAUTION!  
To avoid fuel spillage and overfilling, do not “top off” the  
fuel tank after filling.  
A static electric charge could cause a spark and  
fire hazard.  
1. Put the vehicle in PARK and switch the ignition off.  
2. Push the center-rear edge of the fuel filler door  
(3 o'clock position) and release to open.  
Fuel Filler  
172 STARTING AND OPERATING  
The entirevehicleshould firstbeweighed on a commercial  
scale to ensure that the Gross Vehicle Weight Rating  
(GVWR) has not been exceeded. The weight on the front  
and rear of the vehicle should then be determined  
separately to be sure that the load is properly distributed  
over the front and rear axle. Weighing the vehicle may  
show that the Gross Axle Weight Rating (GAWR) of either  
the front or rear axles has been exceeded but the total  
load is within the specified GVWR. If so, weight must be  
shifted from front to rear or rear to front as appropriate  
until the specified weight limitations are met. Store the  
heavier items down low and be sure that the weight is  
distributed equally. Stow all loose items securely before  
driving.  
TIRE SIZE  
VEHICLE LOADING  
GROSS VEHICLE WEIGHT RATING  
(GVWR)  
The GVWR is the total permissible weight of your vehicle  
including driver, passengers, vehicle, options and cargo.  
The label also specifies maximum capacities of front and  
rear Gross Axle Weight Rating (GAWR). Total load must be  
limited so GVWR and front and rear GAWR are not  
exceeded.  
The tire size on the Vehicle Certification Label represents  
the actual tire size on your vehicle. Replacement tires  
must be equal to the load capacity of this tire size.  
RIM SIZE  
This is the rim size that is appropriate for the tire size  
listed.  
INFLATION PRESSURE  
This is the cold tire inflation pressure for your vehicle for  
all loading conditions up to full Gross Axle Weight Rating  
(GAWR).  
PAYLOAD  
The payload of a vehicle is defined as the allowable load  
weight a truck can carry, including the weight of the driver,  
all passengers, options and cargo.  
Improper weight distributions can have an adverse effect  
on the way your vehicle steers and handles and the way  
the brakes operate.  
CURB WEIGHT  
The curb weight of a vehicle is defined as the total weight  
of the vehicle with all fluids, including vehicle fuel, at full  
capacity conditions, and with no occupants or cargo  
loaded into the vehicle. The front and rear curb weight  
values are determined by weighing your vehicle on a  
commercial scale before any occupants or cargo are  
added.  
GROSS AXLE WEIGHT RATING (GAWR)  
The GAWR is the maximum permissible load on the front  
and rear axles. The load must be distributed in the cargo  
area so that the GAWR of each axle is not exceeded.  
WARNING!  
Do not load your vehicle any heavier than the GVWR or  
the maximum front and rear GAWR. If you do, parts on  
your vehicle can break, or it can change the way your  
vehicle handles. This could cause you to lose control.  
Overloading can shorten the life of your vehicle.  
Each axle GAWR is determined by the components in the  
system with the lowest load carrying capacity (axle,  
springs, tires or wheels). Heavier axles, or suspension  
components sometimes specified by purchasers for  
increased durability, do not necessarily increase the  
vehicle's GVWR.  
LOADING  
The actual total weight and the weightof the front and rear  
of your vehicle at the ground can best be determined by  
weighing it when it is loaded and ready for operation.  
 
STARTING AND OPERATING 173  
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 TOWING  
WARNING!  
In this section you will find safety tips and information on  
limits to the type of towing you can reasonablydo with your  
vehicle. Before towing a trailer, carefully review this  
information to tow your load as efficiently and safely as  
possible.  
If the gross trailer weight is 5,000 lb (2,267 kg) or  
more, it is recommended to use a weight-distributing  
hitch to ensure stable handling of your vehicle. If you  
use a standard weight-carrying hitch, you could lose  
control of your vehicle and cause a collision.  
Trailer Frontal Area  
The frontal area is the maximum height multiplied by the  
maximum width of the front of a trailer.  
To maintain the New Vehicle Limited Warranty coverage,  
follow the requirements and recommendations in this  
manual concerning vehicles used for trailer towing.  
Gross Combination Weight Rating (GCWR)  
Trailer Sway Control (TSC)  
The GCWR is the total allowable weight of your vehicle and  
trailer when weighed in combination.  
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.  
COMMON TOWING DEFINITIONS  
The following trailer towing related definitions will assist  
you in understanding the following information:  
4
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 Ú page 172.  
Gross Vehicle Weight Rating (GVWR)  
The electronic TSC (If equipped) recognizes a swaying  
trailer and automatically applies individual wheel brakes  
and/or reduces engine power to attempt to eliminate the  
trailer sway.  
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 Ú page 172.  
WARNING!  
Weight-Carrying Hitch  
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.  
Gross Trailer Weight (GTW)  
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.  
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.  
174 STARTING AND OPERATING  
Weight-Distributing Hitch  
WARNING!  
A weight-distributing system works by applying leverage  
through spring (load) bars. They are typically used for  
heavier loads to distribute trailer tongue weight to the tow  
vehicle's front axle and the trailer axle(s). When used in  
accordance with the manufacturer's directions, it provides  
for a morelevel ride, offering more consistentsteering and  
brake control, thereby enhancing towing safety. The  
addition of a friction/hydraulic sway control also dampens  
sway caused by traffic and crosswinds and contributes  
positively to tow vehicle and trailer stability. Trailer Sway  
Control and a weight-distributing (load equalizing) hitch  
are recommended for heavier Tongue Weights (TW) and  
may be required depending on vehicle and trailer  
An improperly adjusted weight-distributing hitch  
system may reduce handling, stability and braking  
performance and could result in a collision.  
Weight-distributing systems may not be compatible  
with surge brake couplers. Consult with your hitch  
and trailer manufacturer or a reputable Recreational  
Vehicle dealer for additional information.  
With Weight-Distributing Hitch (Correct)  
configuration/loading to comply with GAWR requirements.  
Without Weight-Distributing Hitch (Incorrect)  
Improper Adjustment Of Weight-Distributing Hitch (Incorrect)  
STARTING AND OPERATING 175  
8. Use the instrument cluster or touchscreen radio  
settings and switch off tire jack mode. Make sure the  
truck returns to normal ride height. Perform a visual  
inspection of the trailer and weight-distributing hitch  
to confirm the manufacturer’s recommendations  
have been met.  
RECOMMENDED DISTRIBUTION HITCH  
ADJUSTMENT  
Towing With Air Suspension — If Equipped  
1. Verify that the vehicle is at the normal ride height.  
NOTE:  
9. The truck can now be driven.  
The vehicle must remain in the engine run position with all  
doors closed while attaching a trailer for proper leveling of  
the air suspension system.  
Measurement Example  
Example Height (mm)  
H1  
H2  
925  
946  
21  
2. Position the truck to be ready to connect to the trailer  
(do not connect the trailer).  
Measuring Height (H)  
4
3. Enable tire jack mode through the instrument cluster  
or touchscreen radio settings. Tire jack mode will be  
canceled and the procedure must be restarted if the  
vehicle is driven at speeds above 5 mph (8 km/h).  
H2-H1  
5. Attach the trailer to the vehicle without the  
weight-distributing bars connected.  
(H2-H1)/3  
(H2-H1)/3 + H1  
7
6. Measure the height from the top of the front wheel  
opening on the fender to the ground; this is height H2.  
932  
4. Measure the height from the top of the front wheel  
opening on the fender to ground; this is height H1.  
7. Install and adjust the tension in the  
weight-distributing bars per the manufacturer’s  
recommendations so that the height of the front  
fender is approximately (H2-H1)/3+H1  
(about 1/3 the difference between H2 and H1 above  
normal ride height [H1]).  
NOTE:  
For all towing conditions, we recommend towing with  
Tow/Haul mode engaged.  
176 STARTING AND OPERATING  
TRAILER HITCH TYPE AND MAXIMUM TRAILER WEIGHT  
The following chart provides the maximum trailer weight a given factory equipped trailer hitch type can tow and should be used to assist you in selecting the correct trailer hitch for your  
intended towing condition.  
Trailer Hitch Type and Maximum Trailer Weight  
Hitch Type  
Max. Trailer Weight / Max. Tongue Weight  
5,000 lb (2,267 kg) / 500 lb (226 kg)  
12,750 lb (5,783 kg) / 1,275 lb (578 kg)  
Class III Bumper Hitch - 1500 Model  
Class IV - 1500 Model  
Refer to the “Trailer Towing Weights (Maximum Trailer Weight Ratings)” for the Maximum Gross Trailer Weight (GTW) towable for your given drivetrain.  
All trailer hitches should be professionally installed on  
your vehicle.  
TRAILER TOWING WEIGHTS  
(MAXIMUM TRAILER WEIGHT RATINGS)  
TRAILER AND TONGUE WEIGHT  
Class III Bumper Hitch Access  
NOTE:  
Remove the cap with a trim stick or screwdriver to access  
the Class III hitch attachment.  
For trailer towing information (maximum trailer weight  
ratings) refer to the following website addresses:  
NOTE:  
Be careful not to scratch the bumper step pad.  
Weight Distribution  
Class III Bumper Hitch Access  
STARTING AND OPERATING 177  
Consider the following items when computing the weight  
on the rear axle of the vehicle:  
The driver controls the accelerator and the brake while  
steering with the use of the Trailer Reverse Steering  
Control knob. The trailer is steered according to the  
direction the knob is turned.  
The tongue weight of the trailer.  
The weight of any other type of cargo or equipment put  
in or on your vehicle.  
This feature will also allow the driver to back up a vehicle  
and trailer in a straight line when the knob is rested in its  
center position.  
The weight of the driver and all passengers.  
NOTE:  
Minimal setup is required to use this feature.  
Set Up:  
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.  
To use the system, hitch your trailer to the truck and  
ensure all electrical wiring is connected Ú page 182.  
Trailer Reverse Steering Control Calibration  
4
The system will automatically calibrate an attached trailer  
during normal forward driving with no additional action  
needed from the driver. If the vehicle has not had enough  
time to automatically calibrate after connecting a trailer,  
you will see a “Calibrate Trailer” message in the  
instrument cluster when pressing the TRSC button to  
activate the system. If this is the case, perform the  
following maneuver to calibrate the trailer:  
1 — Straight 100 ft (30 m)  
2 — Intersection turn with radius 50-65 ft (15-20 m) in  
either direction  
TRAILER REVERSE STEERING  
CONTROL — IF EQUIPPED  
Feature Overview  
3 — Straight 100 ft (30 m)  
4 — Intersection turn with radius 50-65 ft (15-20 m) in  
either direction  
5 — Straight 100 ft (30 m)  
Trailer Reverse Steering Control (TRSC) is a feature that  
will assist the driver when backing up a trailer. By turning  
the knob located on the center stack, you can more  
accurately control the direction the trailer will go.  
6 — Straight 100 ft (30 m), making sure to align  
vehicle/trailer to path center line  
Drive forward at least 100 ft (30 m), perform a 90 degree  
turn and return to a straight position for at least another  
100 ft (30 m). Perform another 90 degree turn, followed  
by another straight drive of at least 100 ft (30 m). Check  
that the system has calibrated by pushing the TRSC  
button.  
7 — Feature is active, turn knob left or right to back the  
trailer up  
NOTE:  
The 90 degree turns could be in either the left or right  
direction.  
178 STARTING AND OPERATING  
Using TRSC  
Continue to control the accelerator and brake while  
backing the trailer up.  
“Trailer Steering Active” will display after the driver  
shifts to REVERSE and indicates the feature is active.  
CAUTION!  
“Trailer Steering Unavailable” will display if there is a  
fault in the system preventing activation, the driver’s  
door is open, the driver’s seat belt is unbuckled, or the  
tailgate is open.  
NOTE:  
Whileactive, TRSC will automaticallydisable the Rear Park  
Assist system if it was previously enabled.  
Always observe the position of the trailer and  
surroundings using the camera and mirrors to avoid  
damage to the truck or trailer.  
The system will limit the top speed your vehicle can travel  
in REVERSE while using the feature. If needed, you can  
shift to DRIVE or NEUTRAL to pull forward to get more  
room or straighten out the trailer, and shift back to  
REVERSE without the need to reactivate the feature.  
Other reasons the feature may cancel:  
The driver overrides steering by placing hands on the  
steering wheel.  
Trailer tracking is lost.  
The feature will cancel after 30 seconds in DRIVE or when  
the vehicle speed reaches 8 mph (12 km/h).  
If the trailer angle becomes excessive,thebrakes apply  
bringing the vehicle to a stop and then applying the  
parking brake.  
To cancel out of the feature, come to a stop and shift to  
PARK, or push the TRSC activation button.  
Trailer steering button is pushed while active.  
Vehicle speed goes over 8 mph (12 km/h).  
Driver door is open and seat belt is unbuckled.  
Transmission shifted to PARK.  
Instrument Cluster Messages:  
“Calibrate Trailer  
calibrated and the vehicle is at a standstill while the  
button is pushed.  
” will display when a trailer is not  
Trailer Reverse Steering Control Knob  
Trailer Memory  
“Calibrating Trailer” will display when the trailer is not  
calibrated and the vehicle is moving while the button is  
pushed.  
Touse the system, place thegear selector in PARK and put  
your foot on the brake. Push the activation button located  
above the TRSC knob in the center stack. The LED on the  
button will glow solid and the instrument cluster display  
will direct you to shift to REVERSE. Once in REVERSE the  
system is active. Remove hands from the steering wheel  
and slowly back up while turning the TRSC knob in the  
direction you want the trailer to go. Turning the knob  
clockwise will cause the trailer to turn right. Turning the  
knob counterclockwise will cause the trailer to turn left.  
If you release the knob, it will return to its center position,  
and the trailer will back up in a straight line.  
The trailer steering system will automatically retain the  
calibration of the previous five trailers connected, so  
recalibration will not be necessary when hooking up.  
The next time the vehicle is started, place the vehicle in  
DRIVE and drive a short distance. The TRSC system can  
then be activated.  
“To Activate Trailer Steering Shift To P” will display  
when the trailer is calibrated successfully, the TRSC  
activation button is pushed and the vehicle is not in  
PARK.  
NOTE:  
“Trailer Steering Ready, Shift To Reverse” will display  
when the button is pushed, trailer is calibrated and the  
vehicle is in PARK.  
Trailers may look different during day and night condi-  
tions. In such cases, the trailer may need to recalibrate.  
STARTING AND OPERATING 179  
WARNING!  
Some trailers (such as boat trailers) will need to  
recalibrate while loaded and unloaded.  
Perform the maintenance listed in the Scheduled  
Servicing section for the proper maintenance intervals  
Ú page 333. When towing a trailer, never exceed the  
GAWR or GCWR ratings.  
Total weight must be distributed between the tow  
vehicle and the trailer such that the following four  
ratings are not exceeded:  
NOTE:  
The system may not detect a trailer in low light condi-  
tions. In sunny conditions, the performance may be  
degraded as shadows pass over the trailer.  
WARNING!  
GVWR  
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.  
The driver is always responsible for safe operation of  
truck and trailer.  
GTW  
GAWR  
The driver is always in control of the truck as well as the  
trailer and is responsible for controlling thethrottle and  
brakes.  
Tongue weight rating for the trailer hitch utilized  
4
The system may not function when the camera lens is  
blocked, blurred (covered with water, snow, ice, dirt,  
etc) and will not work unless the tailgate is upright and  
fully latched.  
Towing Requirements — Tires  
Do not attempt to tow a trailer while using a compact  
spare tire.  
When hauling cargo or towing a trailer, do not over-  
load your vehicle or trailer. Overloading can cause a  
loss of control, poor performance or damage to  
brakes, axle, engine, transmission, steering, suspen-  
sion, chassis structure or tires.  
Donotdrive more than 50 mph (80 km/h) when towing  
while using a full size spare tire.  
TOWING REQUIREMENTS  
To promote proper break-in of your new vehicle drivetrain  
components, the following guidelines are recommended.  
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.  
Proper tire inflation pressures are essential to the safe  
and satisfactory operation of your vehicle.  
Check the trailer tires for proper tire inflation pressures  
before trailer usage.  
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.  
Check for signs of tire wear or visible tire damage  
before towing a trailer.  
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  
"chock" the trailer wheels.  
Replacing tires with a higher load carrying capacity will  
not increase the vehicle's GVWR and GAWR limits.  
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.  
For further information Ú page 370.  
GCWR must not be exceeded.  
(Continued)  
180 STARTING AND OPERATING  
The user interface consists of the following:  
GAIN Adjustment Buttons (+/-)  
Towing Requirements — Trailer Brakes  
Do not interconnect the hydraulic brake system or  
vacuum system of your vehicle with that of the trailer.  
Integrated Trailer Brake Module (ITBM) —  
If Equipped  
Your vehicle may have an ITBM for electric and Electric  
Over Hydraulic (EOH) trailer brakes.  
Pushing these buttons will adjust the brake control power  
output to the trailer brakes in 0.5 increments. The GAIN  
setting can be increased to a maximum of 10 or  
decreased to a minimum of 0 (no trailer braking).  
An electronically actuated trailer brake controller is  
required when towing a trailer with electronically actu-  
ated brakes. When towing a trailer equipped with a  
hydraulic surge actuated brake system, an electronic  
brake controller is not required.  
NOTE:  
This module has been designed and verified with electric  
trailer brakes and new EOH systems. Some previous EOH  
systems may not be compatible with ITBM.  
GAIN  
The GAIN setting is used to set the trailer brake control for  
the specific towing condition and should be changed as  
towing conditions change. Changes to towing conditions  
include trailer load, vehicle load, road conditions and  
weather.  
Trailer brakes are recommended for trailers over  
1,000 lb (453 kg) and required for trailers in excess of  
2,000 lb (907 kg).  
WARNING!  
Manual Brake Control Lever  
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 an acci-  
dent.  
Slide the manual brake control lever to the left to activate  
power to the trailer's electric brakes independent of the  
tow vehicle's brakes. If the manual brake control lever is  
activated while the brake is also applied, the greater of the  
two inputs determines the power sent to the trailer brakes.  
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 an  
accident.  
The trailer and the vehicle’s stop lamps will come on when  
braking normally with the vehicle brake pedal. Only the  
trailer stop lamps will come on when the manual brake  
control lever is applied.  
Integrated Trailer Brake Module (ITBM)  
1 — GAIN (-) Adjustment Button  
2 — GAIN (+) Adjustment Button  
3 — Manual Brake Control Lever  
CAUTION!  
If the trailer weighs more than 1,000 lb (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.  
STARTING AND OPERATING 181  
Trailer Brake Status Indicator Light  
1. Make sure the trailer brakes are in good working  
condition, functioning normally and properly  
adjusted. See your trailer dealer if necessary.  
6. Push the UP or DOWN buttons until the Trailer Brake  
Type appears on the screen.  
This light indicates the trailer electrical connection status.  
7. Push the RIGHT arrow and then push the UP or DOWN  
buttons until the proper Trailer Brake Type appears  
on the screen.  
If no electrical connection is detected after the ignition is  
turned on, pushing the GAIN adjustment button or sliding  
the manual brake control lever will display the GAIN  
setting for 10 seconds and the Trailer Brake Status  
Indicator Light will not be displayed.  
2. Hook up the trailer and make the electrical  
connections according to the trailer manufacturer's  
instructions.  
8. In a traffic-free environment, tow the trailer on a dry,  
level surface at a speed of 20–25 mph  
(30–40 km/h) and squeeze the manual brake  
control lever completely.  
3. When a trailer is plugged in with electric or EOH  
brakes, the trailer connected message should appear  
in the instrument cluster display (if the connection is  
not recognized by the ITBM, braking functions will not  
be available), the GAIN setting will illuminate and the  
correct type of trailer must be selected from the  
instrument cluster display options.  
If a fault is detected in the trailer wiring or the Integrated  
Trailer Brake Module (ITBM), the Trailer Brake Status  
Indicator Light will flash.  
9. If the trailer wheels lockup (indicated by squealing  
tires), reduce the GAIN setting; if the trailer wheels  
turn freely, increase the GAIN setting.  
Adjusting GAIN  
4
NOTE:  
Repeat steps 8 and 9 until the GAIN setting is at a point  
just below trailer wheel lockup. If towing a heavier trailer,  
trailer wheel lockup may not be attainable even with the  
maximum GAIN setting of 10.  
This should only be performed in a traffic freeenvironment  
at speeds of approximately 20–25 mph (30–40 km/h).  
4. Push the UP or DOWN button on the steering wheel  
until “TRAILER TOW” appears on the screen.  
5. Push the RIGHT arrow on the steering wheel to enter  
“TRAILER TOW”.  
Light Electric  
Electric Trailer Brakes  
*Under 10,000 lb  
Heavy Electric  
Light EOH  
Heavy EOH  
Electric Over Hydraulic Trailer  
Brakes  
Electric Over Hydraulic Trailer  
Brakes  
Type of Trailer Brakes  
Load  
Electric Trailer Brakes  
*Above 10,000 lb  
*Under 10,000 lb  
*Above 10,000 lb  
*The suggested selection may change depending on the  
customer preferences for braking performance. Condition  
of the trailer brakes, driving and road state may also affect  
the selection.  
182 STARTING AND OPERATING  
Display Messages  
The electrical connections are all complete to the vehicle  
but you must connect the harness to a trailer connector.  
Refer to the following illustrations.  
NOTE:  
The trailer brake control interacts with the instrument  
cluster display. Display messages, along with a single  
chime, will be displayed when a malfunction is determined  
in the trailer connection, trailer brake control, or on the  
trailer Ú page 98.  
An aftermarket controller may be available for use with  
trailers with air or EOH trailer brake systems. To deter-  
mine the type of brakes on your trailer and the avail-  
ability of controllers, check with your trailer  
manufacturer or dealer.  
NOTE:  
Disconnectthe trailer wiring connector from the vehicle  
(or any other device plugged into vehicle’s electrical  
connectors) before launching a boat into water.  
Removal of the ITBM will cause errors and it may cause  
damage to the electrical system and electronic  
modules of the vehicle. See an authorized dealer if an  
aftermarket module is to be installed.  
WARNING!  
Be sure to reconnect once clear from water area.  
Connecting a trailer that is not compatible with the  
ITBM system may result in reduced or complete loss of  
trailer braking. There may be a increase in stopping  
distance or trailer instability which could result in  
personal injury.  
Towing Requirements — Trailer Lights  
And Wiring  
Whenever you pull a trailer, regardless of the trailer size,  
stop lights and turn signals on the trailer are required for  
motoring safety.  
CAUTION!  
The Trailer Tow Package may include a four-pin and  
seven-pin wiring harness. Use a factory approved trailer  
harness and connector.  
Connecting a trailer that is not compatible with the  
ITBM system may result in reduced or complete loss of  
trailer braking. There may be a increase in stopping  
distance or trailer instability which could result in  
damage to your vehicle, trailer, or other property.  
NOTE:  
Four-Pin Connector  
Do not cut or splice wiring into the vehicle’s wiring  
harness.  
1 — Ground  
2 — Park  
3 — Left Stop/Turn  
4 — Right Stop/Turn  
 
STARTING AND OPERATING 183  
When activated the feature will enable all of the exterior  
lights sequentially for up to five minutes for time to walk  
around and verify functionality. The following exterior  
lights will remain on for the entirety of the sequence:  
The sequence will only activate if the following conditions  
are met:  
Vehicle is equipped with the Trailer Tow Package  
Vehicle is in PARK  
Park/Running Lamps  
Side Marker Lamps (if equipped)  
License Lamp  
Vehicle is not in motion  
Ignition is in ACC or ON/RUN  
Remote start is inactive  
Signature Lamp (if equipped)  
Low Beams  
Brakes are not applied  
Left turn signal is not applied  
Right turn signal is not applied  
Hazard switch is not applied  
Fog Lamps (if equipped)  
Daytime Running Lamps  
Seven-Pin Connector  
1 — Backup Lamps  
4
During this time the following lights will sequence, each  
activating for three seconds:  
2 — Running Lamps  
3 — Left Stop/Turn  
4 — Ground  
The sequence will cancel if any of the following conditions  
occur:  
1. Brake and CHMSL (third brake light)  
2. Left turn signal  
Brakes are applied  
5 — Battery  
Vehicle is shifted from PARK  
3. Right turn signal  
6 — Right Stop/Turn  
7 — Electric Brakes  
Vehicle is no longer stationary  
Left turn signal activated from stalk  
Right turn signal is activated from stalk  
Hazard switch is activated  
4. Reverse Lamps  
5. High Beam  
Trailer Light Check  
This light check sequence will continue for a total of five  
minutes.  
This feature will run the trailer lights through a sequence  
to check the trailer light function. It is available in the  
Instrument Cluster under the Trailer Tow menu  
Ú page 103.  
Any button on the key fob is pushed  
Ignition button is pushed  
High Beam stalk position is changed  
Sequence is canceled in the instrument cluster