tire pressure RAM CHASSIS CAB 2019 Owners Manual

5
 WARNING LIGHTS AND MESSAGES ........................ 146 
Red Warning Lights .................................................... 146
Yellow Warning Lights............................................... 150
Yellow Indicator Lights .............................................. 155
Green Indicator Lights ................................................ 156
White Indicator Lights ................................................ 157
Blue Indicator Lights ................................................... 158
 ONBOARD DIAGNOSTIC SYSTEM — OBD II ........ 158 
Onboard Diagnostic System (OBD II)
Cybersecurity ............................................................... 159
 EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS ..................................................................... 159
SAFETY  SAFETY FEATURES ......................................................... 161 
Anti-Lock Brake System (ABS) ................................. 161
Electronic Brake Control System .............................. 162
 AUXILIARY DRIVING SYSTEMS .................................. 174 
Forward Collision Warning (FCW) With Mitigation —
If Equipped ................................................................... 174
Tire Pressure Monitoring System (TPMS) ............ 177  OCCUPANT RESTRAINT SYSTEMS ...........................187 
Occupant Restraint Systems Features ......................187 
Important Safety Precautions.....................................188 
Seat Belt Systems .........................................................189 
Supplemental Restraint Systems (SRS).....................202 
Child Restraints ..........................................................214 
Transporting Pets ......................................................240
 SAFETY TIPS ...................................................................240 
Transporting Passengers ............................................240 
Exhaust Gas ..............................................................240 
Safety Checks You Should Make Inside The
Vehicle ..........................................................................241 
Periodic Safety Checks You Should Make Outside The
Vehicle ...........................................................................243
STARTING AND OPERATING  STARTING THE ENGINE ..............................................244 
Automatic Transmission.............................................245 
Tip Start Feature ..........................................................245 
Keyless Enter-N-Go — Ignition ................................. 245 
Normal Starting Using ENGINE START/STOP
Button .........................................................................246

Cold Weather Operation (Below –22°F Or −30°C) ... 250

After Starting ................................................................250
 ENGINE BLOCK HEATER — IF EQUIPPED............... 251

7
 PARKSENSE REAR PARK ASSIST —
IF EQUIPPED ................................................................... 309 
ParkSense Sensors ....................................................... 310
ParkSense Warning Display ...................................... 310
ParkSense Display ....................................................... 310
Enabling And Disabling ParkSense .......................... 315
Service The ParkSense Rear Park Assist System..... 315
Cleaning The ParkSense System ............................... 316
ParkSense System Usage Precautions ...................... 316
 PARKSENSE FRONT AND REAR PARK ASSIST ..... 317 
ParkSense Sensors ....................................................... 318
ParkSense Warning Display ...................................... 318
ParkSense Display ....................................................... 318
Enabling And Disabling Front And/Or Rear
ParkSense ...................................................................... 323
Service The ParkSense Front/Rear Park Assist
System ........................................................................... 324
Cleaning The ParkSense System ............................... 324
ParkSense System Usage Precautions ...................... 324
 PARKVIEW REAR BACK UP CAMERA ................. 326
 SURROUND VIEW CAMERA SYSTEM —
IF EQUIPPED ................................................................... 330
 REFUELING THE VEHICLE — GAS ........................... 336

Loose Fuel Filler Cap Message ................................. 337  VEHICLE LOADING .....................................................337 
Gross Vehicle Weight Rating (GVWR) ....................337 
Payload..........................................................................338 
Gross Axle Weight Rating (GAWR)..........................338 
Tire Size .........................................................................338 
Rim Size.........................................................................338 
Inflation Pressure .........................................................338 
Curb Weight .................................................................338 
Loading .........................................................................338
 TRAILER TOWING ........................................................339 
Common Towing Definitions ....................................339 
Trailer Hitch Type and Maximum Trailer Weight ...... 344 
Trailer Towing Weights (Maximum Trailer Weight
Ratings) ......................................................................345 
Trailer And Tongue Weight ......................................345 
Towing Requirements ................................................346 
Towing Tips .................................................................353
 SNOWPLOW .................................................................... 355 
2500/3500 Models Only..............................................355
 RECREATIONAL TOWING (BEHIND MOTORHOME,
ETC.) ...................................................................................358 
Towing This Vehicle Behind Another Vehicle ........358 
Recreational Towing — Two-Wheel Drive Models .... 359

Recreational Towing — Four-Wheel Drive
Models ...........................................................................359

132 GETTING TO KNOW YOUR INSTRUMENT PANEL
Vehicle Info
Push and release the up or down arrow button until the
Vehicle Info menu item is highlighted in the instrument
cluster display. Push and release the right arrow button to
enter the submenus items of Vehicle Info. Follow the direc -
tional prompts to access or reset any of the following Vehicle
Info submenu items:
• Tire Pressure
• Coolant Temperature — If Equipped
• Transmission Temperature — If Equipped
• Oil Temperature — If Equipped
• Oil Pressure
• Exhaust Brake — If Equipped
• Turbo Boost — If Equipped
• Diesel Particulate Filter — If Equipped
• Oil Life
• Fuel Filter Life — If Equipped
• Battery Voltage
• Gauge Summary — If Equipped
• Engine Hours Driver Assist — If Equipped
The Driver Assist menu displays the status of the ACC
system.
Push and release the up or down arrow button until the
Driver Assist menu is displayed in the instrument cluster
display.
Adaptive Cruise Control (ACC) Feature
The instrument cluster display displays the current ACC
system settings. The information displayed depends on ACC
system status.
Push the Adaptive Cruise Control (ACC) on/off button
(located on the steering wheel) until one of the following
displays in the instrument cluster display:
Adaptive Cruise Control Off
When ACC is deactivated, the display will read “Adaptive
Cruise Control Off.”
Adaptive Cruise Control Ready
When ACC is activated but the vehicle speed setting has not
been selected, the display will read “Adaptive Cruise
Control Ready.”

134 GETTING TO KNOW YOUR INSTRUMENT PANEL
Trailer Tow
Push and release the up or down arrow button until the
Trailer Tow menu item is highlighted in the instrument
cluster display. Push and release the right arrow button and
the next screen will display the following trailer trip infor -
mation:
• Trip (trailer specific) Distance: Push and hold the right
arrow button to reset the distance.
• Trailer Brake
• Output
• Type
• Gain
• Trailer Tire Pressure — If Equipped
Audio
Push and release the up or down arrow button until the
Audio Menu icon/title is highlighted in the instrument
cluster display. This menu will display the audio source
information, including the Song name, Artist name, and
audio source with an accompanying graphic. Phone Call Status
When a call is incoming, a Phone Call Status pop-up will
display on the screen. The pop-up will remain until the
phone is answered or ignored.
NOTE:
The call status will temporarily replace the previous media
source information displayed on the screen. When the
pop-up is no longer displayed, the display will return to the
last used screen.
Stored Messages
Push and release the up or down arrow button until the
Messages Menu item is highlighted. This feature shows the
number of stored warning messages. Push and release the
right or left arrow buttons to cycle through stored messages.
Screen Setup Menu Item
Push and release the up or down arrow button until the
Screen Setup menu item is highlighted in the instrument
cluster display. Push and release the right arrow button to
enter the Screen Setup submenu. The Screen Setup feature
allows you to change what information is displayed in the
instrument cluster as well as the location that information is
displayed.

152 GETTING TO KNOW YOUR INSTRUMENT PANEL
— Low Washer Fluid Warning Light — If Equipped
This warning light will illuminate when the windshield
washer fluid is low.
— Low Fuel Warning Light
When the fuel level reaches approximately 3.2 gal (12 L) this
light will turn on, and remain on until fuel is added.
A single warning chime will sound with Low Fuel Warning.
— Low Coolant Level Warning Light
This telltale will turn on to indicate the vehicle coolant level
is low.
— Loose Fuel Filler Cap Warning Light — If Equipped
This warning light will illuminate when the fuel filler cap is
loose. Properly close the filler cap to disengage the light. If
the light does not turn off, please see an authorized dealer. — Tire Pressure Monitoring System (TPMS) Warning
Light
The warning light switches on and a message is displayed to
indicate that the tire pressure is lower than the recom -
mended value and/or that slow pressure loss is occurring. In
these cases, optimal tire duration and fuel consumption may
not be guaranteed.
Should one or more tires be in the condition mentioned
above, the display will show the indications corresponding
to each tire.
Each tire, including the spare (if provided), should be checked
monthly when cold and inflated to the inflation pressure
recommended by the vehicle manufacturer on the vehicle
placard or tire inflation pressure label. (If your vehicle has tires
of a different size than the size indicated on the vehicle placard
or tire inflation pressure label, you should determine the
proper tire inflation pressure for those tires.) CAUTION!
Do not continue driving with one or more flat tires as
handling may be compromised. Stop the vehicle, avoiding
sharp braking and steering. If a tire puncture occurs, repair
immediately using the dedicated tire repair kit and contact
an authorized dealer as soon as possible.

GETTING TO KNOW YOUR INSTRUMENT PANEL 153
As an added safety feature, your vehicle has been equipped
with a Tire Pressure Monitoring System (TPMS) that illumi -
nates a low tire pressure telltale when one or more of your
tires is significantly under-inflated. Accordingly, when the
low tire pressure telltale illuminates, you should stop and
check your tires as soon as possible, and inflate them to the
proper pressure. Driving on a significantly under-inflated
tire causes the tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel efficiency and tire tread
life, and may affect the vehicle’s handling and stopping
ability.
Please note that the TPMS is not a substitute for proper tire
maintenance, and it is the driver’s responsibility to maintain
correct tire pressure, even if under-inflation has not reached
the level to trigger illumination of the TPMS low tire pres -
sure telltale.
Your vehicle has also been equipped with a TPMS malfunc -
tion indicator to indicate when the system is not operating
properly. The TPMS malfunction indicator is combined with
the low tire pressure telltale. When the system detects a
malfunction, the telltale will flash for approximately one
minute and then remain continuously illuminated. This
sequence will continue upon subsequent vehicle start-ups as
long as the malfunction exists. When the malfunction indi -
cator is illuminated, the system may not be able to detect or signal low tire pressure as intended. TPMS malfunctions
may occur for a variety of reasons, including the installation
of replacement or alternate tires or wheels on the vehicle that
prevent the TPMS from functioning properly. Always check
the TPMS malfunction telltale after replacing one or more
tires or wheels on your vehicle to ensure that the replace -
ment or alternate tires and wheels allow the TPMS to
continue to function properly.
CAUTION!
The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures and
warning have been established for the tire size equipped
on your vehicle. Undesirable system operation or sensor
damage may result when using replacement equipment
that is not of the same size, type, and/or style.
Aftermarket wheels can cause sensor damage. Using
aftermarket tire sealants may cause the Tire Pressure
Monitoring System (TPMS) sensor to become
inoperable. After using an aftermarket tire sealant it is
recommended that you take your vehicle to your
authorized dealer to have your sensor function checked. 3

SAFETY 177
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.
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. 4

178 SAFETY
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.
For example, your vehicle may have a recommended cold
(parked for more than three hours) placard pressure of 30 psi
(207 kPa). If the ambient temperature is 68°F (20°C) and the
measured tire pressure is 27 psi (186 kPa), a temperature
drop to 20°F (-7°C) will decrease the tire pressure to approx -
imately 23 psi (158 kPa). This tire pressure is sufficiently low
enough to turn on the TPMS Warning Light. Driving the
vehicle may cause the tire pressure to rise to approximately
27 psi (186 kPa), but the TPMS Warning Light will still be on. In this situation, the TPMS Warning Light will turn off only
after the tires are inflated to the vehicle’s recommended cold
placard pressure value.
CAUTION!
• The TPMS has been optimized for the original equip -
ment tires and wheels. TPMS pressures and warning
have been established for the tire size equipped on
your vehicle. Undesirable system operation or sensor
damage may result when using replacement equipment
that is not of the same size, type, and/or style. After -
market wheels can cause sensor damage.
• Using aftermarket tire sealants may cause the Tire Pres -
sure Monitoring System (TPMS) sensor to become
inoperable. After using an aftermarket tire sealant it is
recommended that you take your vehicle to an autho -
rized dealership to have your sensor function checked.
• After inspecting or adjusting the tire pressure always
reinstall the valve stem cap. This will prevent moisture
and dirt from entering the valve stem, which could
damage the TPMS sensor.

SAFETY 179
NOTE:
• The TPMS is not intended to replace normal tire care and
maintenance or to provide warning of a tire failure or
condition.
• If your vehicle is not equipped with the Tire Fill Alert
feature the TPMS should not be used as a tire pressure
gauge while adjusting your tire pressure.
• Driving on a significantly under-inflated tire causes the
tire to overheat and can lead to tire failure. Under-inflation
also reduces fuel efficiency and tire tread life, and may
affect the vehicle’s handling and stopping ability.
• The TPMS is not a substitute for proper tire maintenance,
and it is the driver’s responsibility to maintain correct tire
pressure using an accurate tire pressure gauge, even if
under-inflation has not reached the level to trigger illumi -
nation of the TPMS Warning Light.
• Seasonal temperature changes will affect tire pressure, and
the TPMS will monitor the actual tire pressure in the tire. Example: Tire Pressure Monitor Display
The Tire Pressure Monitor System (TPMS) uses wireless
technology with wheel rim mounted electronic sensors to
monitor 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. 4

180 SAFETY
The TPMS consists of the following components:
• Receiver module
• Four tire pressure monitoring sensors
• Various tire pressure monitoring system messages, which
display in the instrument cluster
• Tire Pressure Monitoring System Warning Light
Tire Pressure Monitoring Low Pressure Warnings
The “Tire Pressure Monitoring Telltale 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 pressure values of each tire
with the low tire pressure values in a different color. An
"Inflate to XX" message will also be displayed. Example: Low Tire Pressure Display
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
vehicle’s recommended cold placard pressure inflation value
as shown in the "Inflate to XX" message. Once the system
receives the updated tire pressures, the system will automat -
ically update, the graphic display in the instrument cluster
will return to it’s original color, and the “Tire Pressure Moni -
toring Telltale Light” will turn off. 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.