tires RAM CHASSIS CAB 2019 User Guide

SAFETY 181
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 Tire Pres -
sure Monitoring Telltale Light off.
Service TPMS Warning
If a system fault is detected, the “Tire Pressure Monitoring
Telltale Light” will flash on and off for 75 seconds and then
remain on solid. The system fault will also sound a chime. In
addition, the instrument cluster will display a "SERVICE
TPM SYSTEM" message for a minimum of five seconds and
then display dashes (- -) in place of the pressure value to indi -
cate which sensor is not being received.
If the ignition switch is cycled, this sequence will repeat,
providing the system fault still exists. If the system fault no
longer exists, the “Tire Pressure Monitoring Telltale Light”
will no longer flash, and the "SERVICE TPM SYSTEM"
message will no longer display, and a pressure value will
display in place of the dashes. A system fault can occur due
to any of the following:
• Signal interference due to electronic devices or driving
next to facilities emitting the same radio frequencies as the
TPM sensors. • Installing aftermarket window tinting that contains mate -
rials that may block radio wave signals.
• Accumulation of snow or ice around the wheels or wheel
housings.
• Using tire chains on the vehicle.
• Using wheels/tires not equipped with TPM sensors.
A system fault may occur due to an incorrect TPM sensor
location condition. When a system fault occurs due to an
incorrect TPM sensor location, the “Tire Pressure Monitoring
Telltale Light” will flash on and off for 75 seconds and then
remain on solid. The system fault will also sound a chime. In
addition, the instrument cluster will display a “Tire Pressure
Temporarily Unavailable” message in place of the tire pres -
sure display screen. If the ignition switch is cycled, this
sequence will repeat, providing the system fault still exists. If
the system fault no longer exists, the “Tire Pressure Moni -
toring Telltale Light” will no longer flash and the tire pres -
sure display screen will be displayed showing the tire
pressure values the correct locations. 4

182 SAFETY
Vehicles With Non Matching Full Size Spare Or Compact
Spare
• The non matching full size spare or compact spare tire
does not have a TPM sensor. Therefore, the TPMS will not
monitor the pressure in the non matching full size spare or
compact spare tire.
• If you install the non matching full size spare or compact
spare tire in place of a road tire that has a pressure below the
low-pressure warning limit, upon the next ignition switch
cycle, the TPM Telltale Light and a “LOW TIRE” message
will remain ON and a chime will sound. In addition, the
graphic in the instrument cluster will still display a pressure
value in a different color and an “Inflate to XX” message.
• After driving the vehicle for up to 20 minutes above
15 mph (24 km/h), the TPM Telltale Light will flash on
and off for 75 seconds and then remain on solid. In addi -
tion, the instrument cluster will display a "SERVICE TPM
SYSTEM" message for a minimum of five seconds and then
display dashes (- -) in place of the pressure value.
• For each subsequent ignition switch cycle, a chime will
sound, the TPM Telltale Light will flash on and off for 75
seconds and then remain on solid, and the instrument
cluster will display a "SERVICE TPM SYSTEM" message for
a minimum of five seconds and then display dashes (- -) in
place of the pressure value. • Once you repair or replace the original road tire and rein -
stall it on the vehicle in place of the non matching full size
spare or compact spare, the TPMS will update automati -
cally. In addition, the TPM Telltale Light will turn OFF and
the graphic in the instrument cluster will display a new
pressure value instead of dashes (- -), as long as no tire
pressure is below the low-pressure warning limit in any of
the four active road tires. 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.
Trailer Tire Pressure Monitoring System (TTPMS)
The Trailer Tire Pressure Monitoring System (TTPMS) is a
feature that will display the trailer tire pressure values and
warn the driver of a low trailer tire pressure, based on the
drivers set target tire pressure value, through the Instrument
Cluster (IC).
The TTPMS monitors the pressure of each tire and warns the
driver, through the IC, when either a low tire pressure condi -
tion or a TPM sensor or system malfunction condition exists.
The IC will display the actual tire pressure or dashes for each
of the trailer tires in the correct trailer position, based on
trailer configuration.

SAFETY 183
The TTPMS consist of the following components:
• Trailer Receiver Module
• Trailer Interface Module
• Two to twelve tire pressure monitoring sensors depending
on trailer configuration
The TTPMS is configured though the trailer settings menu in the
Uconnect system by selecting the desired trailer number (up to
four trailers can be configured), the number of axles (1 - 3), the
number of trailer tires (2, 4, 6, 8, or 12), and the set trailer tire
pressure. Refer to “Uconnect Settings” in “Multimedia” for
further information.
Tire Pressure Monitoring Low Pressure Warnings
When a tire pressure low in one or more of the active road
tires is detected a chime will sound. In addition, the instru -
ment cluster will display a graphic showing the pressure
values of each tire with the low tire pressure values in a
different color. An “Inflate to XXX” message will also be
displayed.
NOTE:
"XXX" = TPM trailer tire target pressure value programmed
by the customer Should this occur, you should stop as soon as possible and
inflate the tires with a low pressure condition (those in a
different color in the instrument cluster graphic) to the
customer programmed target tire pressure value as shown in
the “Inflate to XXX” message. Once the system receives the
updated tire pressures, the system will automatically update
the graphic display in the instrument cluster will return to
it’s original color. The vehicle may need to be driven for up
to 10 minutes above 15 mph (24 km/h) in order for the
TTPMS to receive the updated information.
Service TTPMS Warning
If a system fault is detected, the system fault will sound a
chime and the instrument cluster will display a “Trailer Tire
Pressure System Service Required” message for a minimum
of five seconds and then display dashes (- -) in place of the
pressure value to indicate which sensor is not being received.
Once the system fault is corrected the "Trailer Tire Pressure
System Service Required" message will no longer be
displayed and the dashes will be replaced by pressure
values. The vehicle may need to be driven for up to
10 minutes above 15 mph (24 km/h) in order for the TTPMS
to receive the updated information. 4

184 SAFETY
Trailer Tire Pressure System Not Configured
A “Trailer Tire Pressure System Not Configured” message
will be displayed in the Instrument Cluster when a trailer
number is selected that does not have configuration values
entered for the (Number of Tires, Number of Axles, SET
Target Tire Pressure, trailer TPM sensor ID's).
To correct this condition the (Number of Tires, Number of
Axles, and SET Target Tire Pressure) values must be entered
in the radio for the trailer number selected. The trailer
sensors must also be paired to the trailer. Refer to the “Ucon -
nect Settings” in “Multimedia” for further information.
Trailer Sensors Detected Do Not Match Active Trailer
The “Trailer Sensors Detected Do Not Match Active Trailer”
message will be displayed in the Instrument Cluster when
the trailer sensors being received by the TTPM module do
match the trailer sensors paired to the current trailer number
selected. This message will be displayed when the sensors
being received completely match the sensors paired to
another trailer number configured in the TTPM module.
To correct this condition, the correct trailer number must be
selected in the radio. Refer to the “Uconnect Settings” in
“Multimedia” for further information. Tire Fill Alert
This feature notifies the user when the placard tire pressure
is attained while inflating or deflating the tire.
The customer may choose to disable or enable the Tire Fill
Alert feature through use of the customer settings in the
radio.
NOTE:
• Only one tire can be filled at a time when using the Tire Fill
Alert system.
• The Tire Fill Alert feature cannot be entered if an existing
TPM system fault is set to “active” or if the system is in
deactivation mode (if equipped).
The system will be activated when the TPM receiver module
detects a change in tire pressure. The ignition must be in the
RUN mode, with the transmission in PARK (P).
NOTE:
It is not required to have the engine running to enter Tire Fill
Alert mode.
The hazard lamps will come on to confirm the vehicle is in
Tire Fill Alert mode.

SAFETY 185
When Tire Fill Alert Mode is entered, the tire pressure
display screen will be displayed in the instrument cluster.
Operation:
• The horn will chirp to let the user know when to stop
filling the tire, when it reaches recommended pressure.
• The horn will chirp three times if the tire is over filled and
will continue to chirp every five seconds if the user
continues to inflate the tire.
• The horn will chirp once again when enough air is let out
to reach proper inflation level.
• The horn will also chirp three times if the tire is then
under-inflated and will continue to chirp every five
seconds if the user continues to deflate the tire.
Selectable Tire Fill Alert (STFA)
The Selectable Tire Fill Alert (STFA) system is an optional
feature that is included as part of the normal Tire Fill Alert
system. The system is designed to allow the customer to
select a pressure to inflate or deflate the vehicle's front and
rear axle tires to and to provide feedback to the customer
while inflating or deflating the vehicle's tires.
In the Selectable Tire Fill Alert customer settings menu in the
radio, the customer will be able to select a pressure setting for both the front and rear axle tire pressures by scrolling
through a pressure range from XX to 15 psi in 1 psi incre -
ments for each axle setting. XX = the vehicle’s cold placard
pressure values for the front and rear axles as shown on the
vehicle placard pressure label.
The customer may also store the pressure values chosen for
each axle in the radio as a preset pressure. The customer will
be allowed to store up to two sets of preset values in the radio
for the front and rear axle pressure values.
Once the customer selects the tire pressures for the front and
rear axles that they want to inflate or deflate to, they can
begin inflating or deflating one tire at a time.
NOTE:
The STFA system will only support inflating or deflating one
tire at a time.
The system will be activated when the TPM receiver module
detects a change in tire pressure. The ignition must be in the
RUN mode, with the transmission in PARK (P).
The hazard lamps will come on to confirm the vehicle is in
Tire Fill Alert mode.
When Tire Fill Alert Mode is entered, the tire pressure
display screen will be displayed in the instrument cluster. 4

186 SAFETY
Operation:
• The horn will chirp once when the selected pressure is
reached to let the user know when to stop inflating or
deflating the tire.
• The horn will chirp three times if the tire is over inflated or
over deflated and will continue to chirp every five seconds
if the user continues to inflate or deflate the tire.
• The horn will chirp once again when enough air is added
or removed to reach proper selected pressure level.
Tire Pressure Information System (TPIS) 3500 Series
Trucks
Your vehicle may be equipped with a Tire Pressure Informa -
tion System (TPIS).
The Tire Pressure Information System (TPIS) uses wireless
technology with wheel rim mounted electronic sensors to
transmit tire pressure levels. Sensors mounted to each wheel
as part of the valve stem transmit tire pressure readings to
the receiver module.
NOTE:
It is particularly important for you to check the tire pressure
in all of the tires on your vehicle monthly and to maintain the
proper pressure. The TPIS consists of the following components:
• Receiver module
• Four TPM sensors (Single Rear Wheel (SRW) applications)
• Six TPM sensors (Dual Rear Wheel (DRW) applications)
• Pressure display in the instrument cluster
The TPIS system will display all four (Single Rear Wheel
(SRW) applications) or six (Dual Rear Wheel (DRW) applica -
tions) tire pressure values in the instrument cluster display.
If a system fault is detected, the instrument cluster will
display a "SERVICE TPM SYSTEM" message for a minimum
of five seconds and then display dashes (- -) in place of the
pressure value to indicate which sensor is not being received.
If the ignition switch is cycled, this sequence will repeat,
providing the system fault still exists. If the system fault no
longer exists, the "SERVICE TPM SYSTEM" message will no
longer be displayed, and a pressure value will display in
place of the dashes. A system fault can occur due to any of
the following:
• Signal interference due to electronic devices or driving
next to facilities emitting the same radio frequencies as the
TPM sensors.

SAFETY 187
• Installing aftermarket window tinting that contains mate -
rials that may block radio wave signals.
• Accumulation of snow or ice around the wheels or wheel
housings.
• Using tire chains on the vehicle.
• Using wheels/tires not equipped with TPM sensors.
General Information
This device complies with Part 15 of the FCC rules and RSS
210 of Industry Canada. Operation is subject to the following
conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received,
including interference that may cause undesired operation.
NOTE:
Changes or modifications not expressly approved by the
party responsible for compliance could void the user’s
authority to operate the equipment. OCCUPANT RESTRAINT SYSTEMS
Some of the most important safety features in your vehicle
are the restraint systems:
Occupant Restraint Systems Features
• Seat Belt Systems
• Supplemental Restraint Systems (SRS) Air Bags
• Child Restraints
Some of the safety features described in this section may be
standard equipment on some models, or may be optional
equipment on others. If you are not sure, ask an authorized
dealer. 4

SAFETY 243
Periodic Safety Checks You Should Make Outside
The Vehicle
Tires
Examine tires for excessive tread wear and uneven wear
patterns. Check for stones, nails, glass, or other objects
lodged in the tread or sidewall. Inspect the tread for cuts and
cracks. Inspect sidewalls for cuts, cracks, and bulges. Check
the wheel bolts for tightness. Check the tires (including
spare) for proper cold inflation pressure.
Lights
Have someone observe the operation of brake lights and
exterior lights while you work the controls. Check turn
signal and high beam indicator lights on the instrument
panel.
Door Latches
Check for proper closing, latching, and locking.
Fluid Leaks
Check area under the vehicle after overnight parking for
fuel, coolant, oil, or other fluid leaks. Also, if gasoline fumes
are detected or if fuel, or brake fluid leaks are suspected. The
cause should be located and corrected immediately.• ALWAYS make sure objects cannot fall or slide into the
driver’s side floor area when the vehicle is moving.
Objects can become trapped under accelerator, brake,
or clutch pedals and could cause a loss of vehicle
control.
• NEVER place any objects under the floor mat (e.g.,
towels, keys, etc.). These objects could change the posi -
tion of the floor mat and may cause interference with
the accelerator, brake, or clutch pedals.
• If the vehicle carpet has been removed and re-installed,
always properly attach carpet to the floor and check the
floor mat fasteners are secure to the vehicle carpet.
Fully depress each pedal to check for interference with
the accelerator, brake, or clutch pedals then re-install
the floor mats.
• It is recommended to only use mild soap and water to
clean your floor mats. After cleaning, always check
your floor mat has been properly installed and is
secured to your vehicle using the floor mat fasteners by
lightly pulling mat. WARNING! (Continued)
4

STARTING AND OPERATING 275
3. When the shift is complete, the indicator light for the
selected position will stop flashing and remain ON.
If One Or More Of The Following Shift Conditions Are
Not Met:
1. The indicator light for the current position will remain
ON.
2. The newly selected position indicator light will continue
to flash.
3. The transfer case will not shift.
NOTE:
Before retrying a selection, make certain that all the neces -
sary requirements for selecting a new transfer case position
have been met. To retry the selection, push the current posi -
tion, wait five seconds, and retry selection. To find the shift
requirements, refer to the "Shifting Procedure" for your
transfer case, located in this section.
The “SVC 4WD Warning Light” monitors the electronic shift
four-wheel drive system. If this light remains on after engine
start up or illuminates during driving, it means that the
four-wheel drive system is not functioning properly and that
service is required. NOTE:
Do not attempt to make a shift while only the front or rear
wheels are spinning. This could cause damage to driveline
components.
When operating your vehicle in 4WD LOW, the engine
speed is approximately three times that of the 2WD or 4WD
HIGH positions at a given road speed. Take care not to over -
speed the engine and do not exceed 25 mph (40 km/h).
Proper operation of four-wheel drive vehicles depends on
tires of equal size, type and circumference on each wheel.
Any difference in tire size can cause damage to the drive -
train.
Because four-wheel drive provides improved traction, there
is a tendency to exceed safe turning and stopping speeds. Do
not go faster than road conditions permit. WARNING!
Always engage the parking brake when powering down
the vehicle if the “SVC 4WD Warning Light” is
illuminated. Not engaging the parking brake may allow
the vehicle to roll which may cause personal injury or
death.
5

278 STARTING AND OPERATING
NEUTRAL (N)
Neutral — This range disengages both the front and rear
driveshafts from the powertrain. To be used for flat towing
behind another vehicle. Refer to “Recreational Towing” in
“Starting And Operating” for further information.
4L
Four-Wheel Drive Low Range — This range locks the front
and rear driveshafts together forcing the front and rear
wheels to rotate at the same speed. Additional traction and
maximum pulling power for loose, slippery road surfaces
only. Do not exceed 25 mph (40 km/h).
This transfer case is intended to be driven in the 2H position
for normal street and highway conditions such as dry, hard
surfaced roads.
When additional traction is required, the 4H and 4L posi -
tions can be used to lock the front and rear driveshafts
together and force the front and rear wheels to rotate at the
same speed. This is accomplished by simply moving the gear
selector to the desired positions once the appropriate speed
and gear requirements are met, refer to “Shifting Procedure
– Manually Shifted Transfer Case” in this section for further
information. The 4H and 4L positions are intended for loose, slippery road
surfaces only. Driving in the 4H and 4L positions on dry,
hard surfaced roads may cause increased tire wear and
damage to the driveline components.
The “Transfer Case Position Indicator Light” in the instru -
ment cluster will alert the driver that the vehicle is in
four-wheel drive and that the front and rear driveshafts are
locked together. This light will illuminate when the transfer
case is shifted into either the 4H or 4L position. There is no
light for the 2H or NEUTRAL positions on some models.
When operating your vehicle in 4L, the engine speed is
approximately three times that of the 2H or 4H positions at a
given road speed. Take care not to overspeed the engine and
do not exceed 25 mph (40 km/h).
Proper operation of four-wheel drive vehicles depends on
tires of equal size, type and circumference on each wheel.
Any difference will adversely affect shifting and can cause
damage to the drivetrain.
NOTE:
Do not attempt to make a shift while only the front or rear
wheels are spinning, as this can cause damage to driveline
components.