RAM 2500 (2019 year). Instruction — part 13

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wheel lift occurring during severe or evasive driving maneu-

vers; it cannot prevent wheel lift due to other factors, such as

road conditions, leaving the roadway, or striking objects or

other vehicles.
NOTE:

ERM is disabled anytime the ESC is in “Full Off” mode (if

equipped). Refer to “Electronic Stability Control (ESC)” in

this section for a complete explanation of the available ESC

modes.

Trailer Sway Control (TSC)

TSC uses sensors in the vehicle to recognize an excessively

swaying trailer and will take the appropriate actions to

attempt to stop the sway. TSC will become active automati-

cally once an excessively swaying trailer is recognized.
NOTE:

TSC cannot stop all trailers from swaying. Always use

caution when towing a trailer and follow the trailer tongue

weight recommendations. Refer to “Trailer Towing” in

“Starting And Operating” for further information.
When TSC is functioning, the “ESC Activation/Malfunction

Indicator Light” will flash, the engine power may be reduced

and you may feel the brakes being applied to individual

wheels to attempt to stop the trailer from swaying. TSC is

disabled when the ESC system is in the “Partial Off” or “Full

Off” modes.

WARNING!

Many factors, such as vehicle loading, road conditions

and driving conditions, influence the chance that wheel

lift or rollover may occur. ERM cannot prevent all wheel

lift or roll overs, especially those that involve leaving the

roadway or striking objects or other vehicles. The

capabilities of an ERM-equipped vehicle must never be

exploited in a reckless or dangerous manner which could

jeopardize the user's safety or the safety of others.

WARNING!

If TSC activates while driving, slow the vehicle down,

stop at the nearest safe location, and adjust the trailer

load to eliminate trailer sway.

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Hill Descent Control (HDC) — If Equipped

HDC is intended for low speed off road driving while in

4WD Low Range. HDC maintains vehicle speed while

descending hills during various driving situations. HDC

controls vehicle speed by actively controlling the brakes.
HDC Has Three States:
1. Off (feature is not enabled and will not activate).
2. Enabled (feature is enabled and ready but activation

conditions are not met, or driver is actively overriding

with brake or throttle application).

3. Active (feature is enabled and actively controlling vehicle

speed).

Enabling HDC
HDC is enabled by pushing the HDC switch, but the

following conditions must also be met to enable HDC:
• Driveline is in 4WD Low Range.
• Vehicle speed is below 5 mph (8 km/h).
• Parking brake is released.
• Driver door is closed.

Activating HDC
Once HDC is enabled it will activate automatically if driven

down a grade of sufficient magnitude. The set speed for

HDC is selectable by the driver, and can be adjusted by using

the gear shift +/-. The following summarizes the HDC set

speeds:
HDC Target Set Speeds
• P = No set speed. HDC may be enabled but will not activate.
• R = 0.6 mph (1 km/h)
• N = 1.2 mph (2 km/h)
• D = 0.6 mph (1 km/h)
• 1st = 0.6 mph (1 km/h)
• 2nd = 1.2 mph (2 km/h)
• 3rd = 1.8 mph (3 km/h)
• 4th = 2.5 mph (4 km/h)
• 5th = 3.1 mph (5 km/h)
• 6th = 3.7 mph (6 km/h)
• 7th = 4.3 mph (7 km/h)
• 8th = 5.0 mph (8 km/h)
• 9th = 5.6 mph (9 km/h) – If Equipped

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NOTE:

During HDC the +/- shifter input is used for HDC target

speed selection, but will not affect the gear chosen by the

transmission. When actively controlling HDC the transmis-

sion will shift appropriately for the driver-selected set speed

and corresponding driving conditions.
Driver Override
The driver may override HDC activation with throttle or

brake application at anytime.
Deactivating HDC
HDC will be deactivated but remain available if any of the

following conditions occur:
• Driver overrides HDC set speed with throttle or brake

application.

• Vehicle speed exceeds 20 mph (32 km/h) but remains

below 40 mph (64 km/h).

• Vehicle is on a downhill grade of insufficient magnitude,

is on level ground, or is on an uphill grade.

• Vehicle is shifted to park.

Disabling HDC
HDC will be deactivated and disabled if any of the following

conditions occur:
• The driver pushes the HDC switch.
• The driveline is shifted out of 4WD Low Range.
• The parking brake is applied.
• Driver door opens.
• The vehicle is driven greater than 20 mph (32 km/h) for

greater than 70 seconds.

• The vehicle is driven greater than 40 mph (64 km/h) (HDC

exits immediately).

• HDC detects excessive brake temperature.

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Feedback To The Driver
The instrument cluster has an HDC icon and the HDC switch

has an LED icon, which offers feedback to the driver about

the state HDC is in.
• The cluster icon and switch lamp will illuminate and

remain on solid when HDC is enabled or activated. This is

the normal operating condition for HDC.

• The cluster icon and switch lamp will flash for several

seconds then extinguish when the driver pushes the HDC

switch but enable conditions are not met.

• The cluster icon and switch lamp will flash for several

seconds then extinguish when HDC disables due to excess

speed.

• The cluster icon and switch lamp will flash when HDC

deactivates due to overheated brakes. The flashing will

stop and HDC will activate again once the brakes have

cooled sufficiently.

AUXILIARY DRIVING SYSTEMS

Blind Spot Monitoring (BSM) — If Equipped

The Blind Spot Monitoring (BSM) system uses two

radar-based sensors, located inside the taillights, to detect

highway licensable vehicles (automobiles, trucks, motorcy-

cles, etc.) that enter the blind spot zones from the rear/front/

side of the vehicle.

Rear Detection Zones

WARNING!

HDC is only intended to assist the driver in controlling

vehicle speed when descending hills. The driver must

remain attentive to the driving conditions and is

responsible for maintaining a safe vehicle speed.

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When the vehicle is started, the BSM warning light will

momentarily illuminate in both outside rearview mirrors to

let the driver know that the system is operational. The BSM

system sensors operate when the vehicle is in any forward

gear or REVERSE and enters stand-by mode when the

vehicle is in PARK.
The BSM detection zone covers approximately one lane

width on both sides of the vehicle 12 ft (3.8 m). The zone

length starts at the outside rear view mirror and extends

approximately 10 ft (3 m) beyond the rear bumper of the

vehicle. The BSM system monitors the detection zones on

both sides of the vehicle when the vehicle speed reaches

approximately 6 mph (10 km/h) or higher and will alert the

driver of vehicles in these areas.
NOTE:
• The BSM system DOES NOT alert the driver about rapidly

approaching vehicles that are outside the detection zones.

• The Blind Spot Monitoring (BSM) system may experience

drop outs (blinking on and off) of the side mirror Warning

Indicator lamps when a motorcycle or any small object

remains at the side of the vehicle for extended periods of

time (more than a couple of seconds).

The vehicle’s taillights, where the radar sensors are located,

must remain free of snow, ice, and dirt/road contamination

so that the BSM system can function properly. Do not block

the taillights with foreign objects (bumper stickers, bicycle

racks, etc.).

Radar Sensor Locations

If the system detects degraded performance due to contami-

nation or foreign objects, a message will warn you of a

blocked sensor and the warning indicators in side view

mirrors will be on. The warning indicators will remain illu-

minated until blockage clearing conditions are met. First

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clear the taillights around the sensors of the blockage. After

removing the blockage, the following procedure can be used

to reset the system:
• Cycle the ignition from ON to OFF and then back ON.
If the blockage message is still present after cycling the igni-

tion and driving in traffic, check again for a blockage.
The BSM system notifies the driver of objects in the detection

zones by illuminating the BSM warning light located in the

outside mirrors in addition to sounding an audible (chime)

alert and reducing the radio volume. Refer to “Modes Of

Operation” in this section for further information.

Warning Light Location

The BSM system monitors the detection zone from three

different entry points (side, rear, front) while driving to see

if an alert is necessary. The BSM system will issue an alert

during these types of zone entries.
Entering From The Side
Vehicles that move into your adjacent lanes from either side

of the vehicle.

Side Monitoring

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Entering From The Rear
Vehicles that come up from behind your vehicle on either

side and enter the rear detection zone with a relative speed

of less than 30 mph (48 km/h).

Rear Monitoring

Overtaking Traffic
If you pass another vehicle slowly with a relative speed less

than 15 mph (24 km/h) and the vehicle remains in the blind

spot for approximately 1.5 seconds, the warning light will be

illuminated. If the difference in speed between the two vehi-

cles is greater than 15 mph (24 km/h), the warning light will

not illuminate.

Overtaking/Approaching

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Overtaking/Passing

The BSM system is designed not to issue an alert on

stationary objects such as guardrails, posts, walls, foliage,

berms, snow banks, car washes etc. However, occasionally

the system may alert on such objects. This is normal opera-

tion and your vehicle does not require service.

Stationary Objects

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The BSM system will not alert you of objects that are trav-

eling in the opposite direction of the vehicle in adjacent

lanes.

Opposing Traffic

Rear Cross Path (RCP)

The Rear Cross Path (RCP) feature is intended to aid the

driver when backing out of parking spaces where their

vision of oncoming vehicles may be blocked. Proceed slowly

and cautiously out of the parking space until the rear end of

the vehicle is exposed. The RCP system will then have a clear

view of the cross traffic and if an oncoming vehicle is

detected, alert the driver.

RCP Detection Zones

RCP monitors the rear detection zones on both sides of the

vehicle, for objects that are moving toward the side of the

vehicle with a minimum speed of approximately 3 mph

WARNING!

The Blind Spot Monitoring system is only an aid to help detect

objects in the blind spot zones. The BSM system is not

designed to detect pedestrians, bicyclists, or animals. Even if

your vehicle is equipped with the BSM system, always check

your vehicle’s mirrors, glance over your shoulder, and use your

turn signal before changing lanes. Failure to do so can result in

serious injury or death.

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(5 km/h), to objects moving a maximum of approximately

20 mph (32 km/h), such as in parking lot situations.
NOTE:

In a parking lot situation, oncoming vehicles can be obscured

by vehicles parked on either side. If the sensors are blocked

by other structures or vehicles, the system will not be able to

alert the driver.
When RCP is on and the vehicle is in REVERSE, the driver is

alerted using both the visual and audible alarms, including

reducing the radio volume.

Modes Of Operation

Three selectable modes of operation are available in the

Uconnect System.
Refer to “Uconnect Settings” in “Multimedia” for further

information.
Blind Spot Alert Lights Only
When operating in Blind Spot Alert mode, the BSM system

will provide a visual alert in the appropriate side view

mirror based on a detected object. However, when the

system is operating in Rear Cross Path (RCP) mode, the

system will respond with both visual and audible alerts

when a detected object is present. Whenever an audible alert

is requested, the radio is muted.
Blind Spot Alert Lights/Chime
When operating in Blind Spot Alert Lights/Chime mode, the

BSM system will provide a visual alert in the appropriate

side view mirror based on a detected object. If the turn signal

is then activated, and it corresponds to an alert present on

that side of the vehicle, an audible chime will also be

sounded. Whenever a turn signal and detected object are

WARNING!

Rear Cross Path Detection (RCP) is not a back up aid

system. It is intended to be used to help a driver detect

an oncoming vehicle in a parking lot situation. Drivers

must be careful when backing up, even when using RCP.

Always check carefully behind your vehicle, look

behind you, and be sure to check for pedestrians,

animals, other vehicles, obstructions, and blind spots

before backing up. Failure to do so can result in serious

injury or death.

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present on the same side at the same time, both the visual

and audible alerts will be issued. In addition to the audible

alert the radio (if on) will also be muted.
NOTE:

Whenever an audible alert is requested by the BSM system,

the radio is also muted.
When the system is in RCP, the system shall respond with

both visual and audible alerts when a detected object is

present. Whenever an audible alert is requested, the radio is

also muted. Turn/hazard signal status is ignored; the RCP

state always requests the chime.
Blind Spot Alert Off
When the BSM system is turned off there will be no visual or

audible alerts from either the BSM or RCP systems.
NOTE:

The BSM system will store the current operating mode when

the vehicle is shut off. Each time the vehicle is started the

previously stored mode will be recalled and used.

General Information

The following regulatory statement applies to all Radio

Frequency (RF) devices equipped in this vehicle:
This device complies with Part 15 of the FCC Rules and with

Industry Canada license-exempt RSS standard(s). Operation

is subject to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received,

including interference that may cause undesired opera-

tion.

NOTE:

Changes or modifications not expressly approved by the

party responsible for compliance could void the user’s

authority to operate the equipment.

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216 SAFETY

Forward Collision Warning (FCW) With Mitigation — If
Equipped

The Forward Collision Warning (FCW) system provides the

driver with audible, visual warnings (within the instrument

cluster display), and may apply a haptic warning in the form

of a brake jerk, to warn the driver when it detects a potential

frontal collision. The warnings are intended to provide the

driver with enough time to react, avoid or mitigate the

potential collision.
NOTE:

FCW monitors the information from the forward looking

sensors as well as Electronic Brake Controller (EBC), to calcu-

late the probability of a forward collision. When the system

determines that a forward collision is probable, the driver

will be provided with audible and visual warnings as well as

a possible haptic warning in the form of a brake jerk.
If the driver does not take action based upon these progres-

sive warnings, then the system will provide a limited level of

active braking to help slow the vehicle and mitigate the

potential forward collision. If the driver reacts to the warn-

ings by braking and the system determines that the driver

intends to avoid the collision by braking but has not applied

sufficient brake force, the system will compensate and

provide additional brake force as required.

If a FCW with Mitigation event begins at a speed below

32 mph (52 km/h), the system may provide the maximum

braking possible to mitigate the potential forward collision.

If the Forward Collision Warning with Mitigation event

stops the vehicle completely, the system will hold the vehicle

at standstill for two seconds and then release the brakes.

FCW Message

When the system determines a collision with the vehicle in

front of you is no longer probable, the warning message will

be deactivated.

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NOTE:
• The minimum speed for FCW activation is 3 mph (5 km/h).
• The FCW alerts may be triggered on objects other than

vehicles such as guard rails or sign posts based on the

course prediction. This is expected and is a part of normal

FCW activation and functionality.

• It is unsafe to test the FCW system. To prevent such misuse

of the system, after four Active Braking events within a

key cycle, the Active Braking portion of FCW will be deac-

tivated until the next key cycle.

• The FCW system is intended for on-road use only. If the

vehicle is taken off-road, the FCW system should be deac-

tivated to prevent unnecessary warnings to the surround-

ings.

• FCW may not react to irrelevant objects such as overhead

objects, ground reflections, objects not in the path of the

vehicle, stationary objects that are far away, oncoming

traffic, or leading vehicles with the same or higher rate of

speed.

• “FCW will be disabled like ACC, with the unavailable

screens.

Turning FCW On or Off
The FCW button is located in the Uconnect display in the

control settings. Refer to “Uconnect Settings” in “Multi-

media” in the Owner's Instruction for further information.
• To turn the FCW system on, press the forward collision

button once to turn the system on.

• To turn the FCW system off, press the forward collision

button once to turn the system off.

NOTE:
• When the FCW is “on”, this allows the system to warn the

driver of a possible collision with the vehicle in front.

• When the FCW is “off” prevents the system from warning

the driver of a possible collision with the vehicle in front.

If the FCW is set to “off”, “FCW OFF" will be displayed in

the instrument cluster display.

WARNING!

Forward Collision Warning (FCW) is not intended to

avoid a collision on its own, nor can FCW detect every

type of potential collision. The driver has the

responsibility to avoid a collision by controlling the

vehicle via braking and steering. Failure to follow this

warning could lead to serious injury or death.

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218 SAFETY

• When FCW status is set to “Only Warning” prevents the

system from providing limited active braking, or addi-

tional brake support if the driver is not braking adequately

in the event of a potential frontal collision.

• When FCW status is set to “Warning and Braking” this

allows the system to warn the driver of a possible collision

with the vehicle in front using audible/visual warnings

and it applies autonomous braking.

• The system will retain the last setting selected by the driver

after ignition shutdown.

FCW Braking Status And Sensitivity

The FCW sensitivity and Active Braking status are program-

mable through the Uconnect System. Refer to “Uconnect

Settings” in “Multimedia” in the Owner's Instruction for further

information.
• Far

•When the sensitivity of FCW is set to the “Far” setting

and the system status is “Warning and Braking”, this

allows the system to warn the driver of a possible more

distant collisions with the vehicle in front using

audible/visual warnings.

• More cautious drivers that do not mind frequent warn-

ings may prefer this setting.

• Medium

•When the sensitivity of FCW is set to the “Medium”

setting and the system status is “Warning and

Braking”, this allows the system to warn the driver of a

possible collision with the vehicle in front using

audible/visual warnings.

• Near

•When the sensitivity of FCW is set to the “Near” setting

and the system status is “Warning and Braking”, this

allows the system to warn the driver of a possible closer

collisions with the vehicle in front using audible/visual

warnings.

•This setting provides less reaction time than the “Far”

and “Medium” settings, which allows for a more

dynamic driving experience.

•More dynamic or aggressive drivers that want to avoid

frequent warnings may prefer this setting.

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FCW Limited Warning

If the instrument cluster displays “ACC/FCW Limited Func-

tionality” or “ACC/FCW Limited Functionality Clean Front

Windshield” momentarily, there may be a condition that

limits FCW functionality. Although the vehicle is still driv-

able under normal conditions, the active braking may not be

fully available. Once the condition that limited the system

performance is no longer present, the system will return to

its full performance state. If the problem persists, see an

authorized dealer.
Service FCW Warning

If the system turns off, and the instrument cluster displays:
• ACC/FCW Unavailable Service Required
• Cruise/FCW Unavailable Service Required
This indicates there is an internal system fault. Although the

vehicle is still drivable under normal conditions, have the

system checked by an authorized dealer.

General Information

The following regulatory statement applies to all Radio

Frequency (RF) devices equipped in this vehicle:
This device complies with Part 15 of the FCC Rules and with

Industry Canada license-exempt RSS standard(s). Operation

is subject to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received,

including interference that may cause undesired opera-

tion.

NOTE:

Changes or modifications not expressly approved by the

party responsible for compliance could void the user’s

authority to operate the equipment.

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220 SAFETY

Tire Pressure Monitoring System (TPMS)

The Tire Pressure Monitor System (TPMS) will warn the

driver of a low tire pressure based on the vehicle recom-

mended cold placard pressure.
NOTE:

The TPMS Warning Light will illuminate in the instrument

cluster and a chime will sound when tire pressure is low in

one or more of the four active road tires. In addition, the

instrument cluster will display a graphic showing the pres-

sure values of each tire with the low tire pressure values in a

different color, or the Uconnect radio will display a TPMS

message, when this occurs you must increase the tire pres-

sure to the recommended cold placard pressure in order for

the TPMS Warning Light to turn off.
The tire pressure will vary with temperature by about 1 psi

(7 kPa) for every 12°F (6.5°C). This means that when the

outside temperature decreases, the tire pressure will

decrease. Tire pressure should always be set based on cold

inflation tire pressure. This is defined as the tire pressure

after the vehicle has not been driven for at least three hours,

or driven less than 1 mile (1.6 km) after a three hour period.

The cold tire inflation pressure must not exceed the

maximum inflation pressure molded into the tire sidewall.

Refer to “Tires” in “Servicing And Maintenance” for infor-

mation on how to properly inflate the vehicle’s tires. The tire

pressure will also increase as the vehicle is driven - this is

normal and there should be no adjustment for this increased

pressure.
The TPMS will warn the driver of a low tire pressure if the

tire pressure falls below the low-pressure warning limit for

any reason, including low temperature effects and natural

pressure loss through the tire.
The TPMS will continue to warn the driver of low tire pres-

sure as long as the condition exists, and will not turn off until

the tire pressure is at or above the recommended cold

placard pressure. Once the low TPMS Warning Light illumi-

nates, you must increase the tire pressure to the recom-

mended cold placard pressure in order for the TPMS

Warning Light to turn off. The system will automatically

update and the TPMS Warning Light will turn off once the

system receives the updated tire pressures. The vehicle may

need to be driven for up to 20 minutes above 15 mph

(24 km/h) in order for the TPMS to receive this information.
NOTE:

When filling warm tires, the tire pressure may need to be

increased up to an additional 4 psi (28 kPa) above the recom-

mended cold placard pressure in order to turn the TPMS

Warning Light off.