service reset RAM CHASSIS CAB 2023 Owners Manual

30GETTING TO KNOW YOUR VEHICLE
ADDITIONAL INFORMATION
© 2022 FCA US LLC. All rights reserved. Mopar and
Uconnect are registered trademarks and Mopar
Owner Connect is a trademark of FCA US LLC.
SiriusXM® and all related marks and logos are
trademarks of SiriusXM® Radio Inc.
Uconnect System Support:
US residents visit www.DriveUconnect.com or
call: 1-877-855-8400 (24 hours a day 7 days a
week)
Canadian residents visit www.DriveUcon -
nect.ca or call: 1-800-465-2001 (English) or
1-800-387-9983 (French)
SiriusXM Guardian™ services support:
US residents visit www.driveuconnect.com/
sirius-xm-guardian or call: 1-844-796-4827
Canadian residents visit https://www.driveu -
connect.ca/en/sirius-xm-guardian or call:
1-877-324-9091
DRIVER MEMORY SETTINGS — IF EQUIPPED
This feature allows the driver to save up to two
different memory profiles for easy recall through a
memory switch. Each memory profile saves
desired position settings for the following features:
Driver seat position
Easy Entry/Exit seat operation (if equipped)
Side mirrors
Adjustable pedals (if equipped)
A set of desired radio station presets
NOTE:
If equipped with power convex mirrors, these
mirror positions will not set as part of a memory
profile.
Your vehicle is equipped with two key fobs, each
can be linked to either memory position 1 or 2.
The driver memory settings switch is located on the
driver door, next to the door handle, and consists
of three buttons:
The set (S) button, which is used to activate the
memory save function.
The (1) and (2) buttons which are used to recall
either of two saved memory profiles.
Driver Memory Settings Buttons

PROGRAMMING THE MEMORY FEATURE
To create a new memory profile, perform the
following:

1. Place the vehicle’s ignition in the ON/RUN
position (do not start the engine).

2. Adjust all memory profile settings to desired preferences (i.e., driver’s seat, outside mirrors,
adjustable pedals (if equipped), and radio
station presets).
3. Push the set (S) button on the memory switch, and then push the desired memory button
(1 or 2) within five seconds. The instrument
cluster display will display which memory
position has been set.
NOTE:Memory profiles can be set without the vehicle in
PARK.

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98GETTING TO KNOW YOUR INSTRUMENT PANEL
Fuel Gauge
Hide Range
Show Range
Defaults (Restores All Settings To Default Settings)
Restore
Cancel
Commercial Settings — If Equipped
Commercial Settings allows the driver to set and
recall additional features when the transmission is
in PARK.
Push and release the up or down arrow
button until Commercial Settings displays in the
instrument cluster display.
Follow the prompts to enter the required PIN and
enter the Commercial Settings submenu.
NOTE:If your vehicle is equipped with a touchscreen
radio, “Commercial Settings” will replace “Vehicle
Settings” in the instrument cluster display. The
Commercial Settings menu will only include the
settings below Ú page 199. Commercial Settings allows you to access the
following features (if equipped):
Power Take Off (PTO)
Remote Ignition
Idle Control
Backup Alarm
ParkSense
Aux Switches
PIN Setup
NOTE:If the vehicle’s PIN is forgotten or not known, see
an authorized dealer to have the PIN reset.
DIESEL MESSAGES AND WARNINGS
Diesel Particulate Filter (DPF) Messages
The Cummins® diesel engine meets all diesel
emissions standards, resulting in one of the lowest
emitting diesel engines ever produced. To achieve
these emissions standards, your vehicle is
equipped with a state-of-the-art engine and
exhaust system. These systems are seamlessly
integrated into your vehicle and managed by the
Powertrain Control Module (PCM). The PCM
manages engine combustion to allow the exhaust
system’s catalyst to trap and burn Particulate
Matter (PM) pollutants, with no input or interaction
on your part.
Your vehicle has the ability to alert you to
additional maintenance required on your vehicle or
engine. The following messages may display in
your instrument cluster display:
Perform Service
— Your vehicle will require emis -
sions maintenance at a set interval. To help
remind you when this maintenance is due, the
instrument cluster display will display “Perform
Service”. When the “Perform Service” message
is displayed in the instrument cluster display it is
necessary to have the emissions maintenance
performed. Emissions maintenance may
include replacing the Closed Crankcase Ventila -
tion (CCV) filter element. The procedure for
clearing and resetting the "Perform Service"
indicator message is located in the appropriate
Service Information.
Favorite Menus
Trip Info Navigation Off Road
Trailer Tow –
If Equipped
(show/hide) Audio (show/
hide)
WARNING!
A hot exhaust system can start a fire if you park
over materials that can burn. Such materials
might be grass or leaves coming into contact
with your exhaust system. Do not park or
operate your vehicle in areas where your
exhaust system can contact anything that can
burn.

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GETTING TO KNOW YOUR INSTRUMENT PANEL99
Exhaust System — Regeneration Required
Now — "Exhaust Filter XX% Full Safely Drive at
Highway Speeds to Remedy" will be displayed in
the instrument cluster display if the exhaust
particulate filter reaches 80% of its maximum
storage capacity. Under conditions of exclusive
short duration and low speed driving cycles,
your Cummins® diesel engine and exhaust
after-treatment system may never reach the
conditions required to remove the trapped PM.
If this occurs, the “Exhaust Filter XX% Full Safely
Drive at Highway Speeds to Remedy” message
will be displayed in the instrument cluster
display. If this message is displayed, you will
hear one chime to assist in alerting you of this
condition
By simply driving your vehicle at highway speeds
for as little as 45 minutes, you can remedy the
condition in the particulate filter system and
allow your Cummins® diesel engine and
exhaust after-treatment system to remove the
trapped PM and restore the system to normal
operating condition.
Exhaust System — Regeneration In Process
Exhaust Filter XX% Full — Indicates that the DPF
is self-cleaning. Maintain your current driving
condition until regeneration is completed.
Exhaust System — Regeneration Completed —
This message indicates that the DPF
self-cleaning is completed. If this message is
displayed, you will hear one chime to assist in
alerting you of this condition.
Exhaust Service Required — See Dealer Now —
This message indicates regeneration has been
disabled due to a system malfunction. At this
point the engine Powertrain Control Module
(PCM) will register a fault code, the instrument
panel will display a MIL light.
Exhaust Filter Full — Power Reduced See
Dealer — This message indicates the PCM has
derated the engine to limit the likelihood of
permanent damage to the after-treatment
system. If this condition is not corrected and a
dealer service is not performed, extensive
exhaust after-treatment damage can occur. To
correct this condition it will be necessary to have
your vehicle serviced by an authorized dealer.
NOTE:Failing to follow the oil change indicator, changing
your oil and resetting the oil change indicator by
0 miles remaining will prevent the diesel exhaust
filter from performing it's cleaning routine. This will
shortly result in a Malfunction Indicator Light (MIL)
and reduced engine power. Only an authorized
dealer will be able to correct this condition.
Cold Ambient Derate Mode Messages
The vehicle will display messages when a derate
(engine power reduction) is activated to protect the
engine during start-up in cold ambient
temperatures.
Engine Power Reduced During Warm-up — This
message will display during start-up when the
ambient temperature is between 10°F (-12°C)
and -10°F (-23°C).
Engine Power Reduced Up To 30 Sec (Seconds)
During Warm-up — This message will display
during start-up when the ambient temperature
is between -10°F (-23°C) and -25°F (-32°C).
CAUTION!
See an authorized dealer, as damage to the
exhaust system could occur soon with continued
operation.
CAUTION!
See an authorized dealer, as damage to the
exhaust system could occur soon with continued
operation.
3

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134STARTING AND OPERATING
engine shutdown, perform this procedure only in a
desired location (preferably, at an authorized
dealer).

1. Stop the vehicle.

2. Shift the transmission into PARK, if possible. If not, shift the transmission to NEUTRAL.
3. Push and hold the ignition switch until the engine turns off.
4. Wait approximately 30 seconds.
5. Restart the engine.
6. Shift into the desired gear range. If the problem is no longer detected, the
transmission will return to normal operation.
NOTE:Even if the transmission can be reset, we
recommend that you visit an authorized dealer at
your earliest possible convenience. An authorized
dealer has diagnostic equipment to assess the
condition of your transmission.
If the transmission cannot be reset, authorized
dealer service is required.
Electronic Range Select (ERS) Operation
The ERS shift control allows the driver to limit the
highest available gear when the transmission is in
DRIVE. For example, if you set the transmission
gear limit to FOURTH gear, the transmission will not shift above FOURTH gear (except to prevent
engine overspeed), but will shift through the lower
gears normally.
You can switch between DRIVE and ERS mode at
any vehicle speed. When the transmission gear
selector is in DRIVE, the transmission will operate
automatically, shifting between all available gears.
Tapping the GEAR “–” switch (on the steering
wheel) will activate ERS mode, display the current
gear in the instrument cluster, and set that gear as
the top available gear. Once in ERS mode, tapping
the GEAR “–” or GEAR “+” switch will change the
top available gear.

ERS Control
To exit ERS mode, simply push and hold the
GEAR “+” switch until the gear limit display
disappears from the instrument cluster.
When to Use TOW/HAUL Mode
When driving in hilly areas, towing a trailer, carrying
a heavy load, etc., and frequent transmission
shifting occurs, push the TOW/HAUL switch to
activate TOW/HAUL mode. This will improve
performance and reduce the potential for
transmission overheating or failure due to
excessive shifting.

TOW/HAUL Switch

1 — GEAR “+” Switch
2 — GEAR “–” Switch
WARNING!
Do not downshift for additional engine braking
on a slippery surface. The drive wheels could
lose their grip and the vehicle could skid,
causing a collision or personal injury.

23_DPF_OM_EN_USC_t.book Page 134

STARTING AND OPERATING137
If the transmission temperature exceeds normal
operating limits, the powertrain controller will
modify the transmission shift schedule and expand
the range of torque converter clutch engagement.
This is done to prevent transmission damage due
to overheating.
If the transmission becomes extremely hot or is in
danger of overheating, the Transmission
Temperature Warning Light may illuminate and the
transmission may operate differently until the
transmission cools down.
NOTE:Use caution when operating a heavily loaded
vehicle at low speeds (such as towing a trailer up a
steep grade, or in stop-and-go traffic) during hot
weather. In these conditions, torque converter slip
can impose a significant additional heat load on
the cooling system. Downshifting the transmission
to the lowest possible gear (when climbing a
grade), or shifting to NEUTRAL (when stopped in
heavy traffic) can help to reduce this excess heat
generation.
During cold temperatures, transmission operation
may be modified depending on engine and
transmission temperature as well as vehicle
speed. This feature improves warm-up time of the
engine and transmission to achieve maximum
efficiency. Engagement of the torque converter
clutch is inhibited until the transmission fluid is
warm Ú page 139. On trucks with AS66RC or AS69RC transmission,
FIFTH and SIXTH gears may be inhibited briefly on
cold starts below 41°F (5°C), and during very cold
temperatures (-4°F [-20°C] or below), operation
may briefly be limited to third gear only. During this
condition, the ability of the vehicle to accelerate
under heavily loaded conditions may be reduced.
In all cases, normal operation will resume once the
transmission temperature has risen to a suitable
level.
Transmission Limp Home Mode
Transmission function is monitored electronically
for abnormal conditions. If a condition is detected
that could result in transmission damage,
Transmission Limp Home Mode is activated. In this
mode, the transmission remains in THIRD gear
regardless of which forward gear is selected. If an
AS66RC/AS69RC equipped truck enters
Transmission Limp Home Mode at highway
speeds, it will initially engage FIFTH gear, until the
vehicle slows to a speed where THIRD gear can be
engaged. PARK, REVERSE, and NEUTRAL will
continue to operate. The Malfunction Indicator
Light (MIL) may be illuminated. Transmission Limp
Home Mode allows the vehicle to be driven to an
authorized dealer for service without damaging the
transmission.
In the event of a momentary problem, the
transmission can be reset to regain all forward
gears by performing the following steps:

1. Stop the vehicle.

2. Shift the transmission into PARK.
3. Turn the ignition to the OFF position.
4. Wait approximately 10 seconds.
5. Restart the engine.
6. Shift into the desired gear range. If the
problem is no longer detected, the
transmission will return to normal operation.
NOTE:Even if the transmission can be reset, we
recommend that you visit an authorized dealer at
your earliest possible convenience. An authorized
dealer has diagnostic equipment to assess the
condition of your transmission.
If the transmission cannot be reset, authorized
dealer service is required.
Electronic Range Select (ERS) Operation
The ERS shift control allows the driver to limit the
highest available gear when the transmission is in
DRIVE. For example, if you set the transmission
gear limit to FOURTH gear, the transmission will
not shift above FOURTH gear, but will shift through
the lower gears normally.
4

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148STARTING AND OPERATING
HYDRAULIC POWER STEERING
The standard power steering system provides
increased vehicle response and ease of
maneuverability in tight spaces. The system will
provide mechanical steering capability if power
assist is lost.
If for some reason the power assist is interrupted,
it will still be possible to steer your vehicle. Under
these conditions, you will observe a substantial
increase in steering effort, especially at very low
vehicle speeds and during parking maneuvers.
NOTE:
Increased noise levels at the end of the steering
wheel travel are considered normal and do not
indicate that there is a problem with the power
steering system.
Upon initial start-up in cold weather, the power
steering pump may make noise for a short
amount of time. This is due to the cold, thick
fluid in the steering system. This noise should
be considered normal, and it does not in any
way damage the steering system.
POWER STEERING FLUID CHECK
Checking the power steering fluid level at a defined
service interval is not required. The fluid should
only be checked if a leak is suspected, abnormal
noises are apparent, and/or the system is not
functioning as anticipated. Check fluid level when
the engine is cold and off. Coordinate inspection
efforts through an authorized dealer. If necessary, add fluid to restore to the proper
indicated level. With a clean cloth, wipe any spilled
fluid from all surfaces Ú
page 421.
CRUISE CONTROL SYSTEMS — IF EQUIPPED
Your vehicle may be equipped with the Cruise
Control system, or the Adaptive Cruise Control
(ACC) system:
Cruise Control will keep your vehicle at a
constant preset speed.
Adaptive Cruise Control (ACC) will adjust the
vehicle speed up to the preset speed to main -
tain a distance with the vehicle ahead.
NOTE:
In vehicles equipped with ACC, if ACC is not
enabled, Fixed Speed Cruise Control will not
detect vehicles directly ahead of you. Always be
aware of the feature selected.
CAUTION!
Prolonged operation of the steering system at
the end of the steering wheel travel will increase
the steering fluid temperature and it should be
avoided when possible. Damage to the power
steering pump may occur.
WARNING!
Fluid level should be checked on a level surface
and with the engine off to prevent injury from
moving parts and to ensure accurate fluid level
reading. Do not overfill. Use only manufacturer's
recommended power steering fluid.
CAUTION!
Do not use chemical flushes in your power
steering system as the chemicals can damage
your power steering components. Such damage
is not covered by the New Vehicle Limited
Warranty.

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252MULTIMEDIA
Remote Vehicle Start
Description
The Remote Vehicle Start feature provides you with
the ability to start the engine on your vehicle
without the keys and from virtually any distance.
Once started, the preset climate controls in your
vehicle can warm up or cool down the interior.
You can also send a command to turn off an
engine that has been started using Remote Vehicle
Start. After 15 minutes, if you have not entered
your vehicle with the key, the engine will shut off
automatically.
This remote function requires your vehicle to be
equipped with a factory-installed Remote Start
system.
You can set up push notifications every time a
command is sent to activate or cancel Remote
Start.
Working Vehicle Conditions
The vehicle must be off or in ACC mode.
The vehicle has been started with the key fob
within the last 14 days.
The vehicle must be in PARK or at a standstill.
The vehicle’s security system has been armed
and not triggered since the last vehicle start.
The doors, hood, and trunk/liftgate are closed.
The vehicle’s check engine light must be off.
The vehicle must have at least a quarter tank of
fuel, along with oil and battery power.
The vehicle’s hazard lights must be off.
If equipped, the vehicle must have an automatic
transmission.
The vehicle must be in an open area with cell
tower reception.
Your mobile device must have a cellular or Wi-Fi
connection.
If the Panic button has been pressed, the
vehicle must be started at least once after
alarming the system.
NOTE:The SiriusXM Guardian™ Customer Care agents
are not authorized for Remote Vehicle Start
services. Contact the Uconnect Care Team for
assistance.
Remote Horn & Lights
Description
It is easy to locate a vehicle in a dark, crowded or
noisy parking area by activating the horn and
lights. It may also help if you need to draw attention
to your vehicle for any reason.
If you want, you can set up push notifications every
time a command is sent to turn on the horn and
lights. Working Vehicle Conditions
The vehicle must in PARK or at a standstill.
The vehicle must be in an open area with cell
tower reception.
Your mobile device must have a cellular or Wi-Fi
connection.
NOTE:The Remote Horn & Lights feature is designed to
be loud and get noticed. Please keep in mind the
surroundings when using this feature. You are
responsible for compliance with local laws, rules
and ordinances in the location of your vehicle
when using Remote Horn & Lights.
Assist — If Equipped
Description
Vehicles equipped with the SiriusXM Guardian™
connected services feature may contain an ASSIST
button in the vehicle. Once your SiriusXM
Guardian™ connected services have been
activated, the ASSIST button can connect you
directly to the Customer Care call center (if
equipped). You will be directed to one of the
following four services:
Roadside Assistance
— If you get a flat tire or
need a tow, you’ll be connected to someone
who can help anytime.

23_DPF_OM_EN_USC_t.book Page 252

MULTIMEDIA261
4. Can someone drive off with my vehicle using
the App? No. Driving your vehicle still requires
the keys to be in the vehicle. The Remote Start
feature simply starts the engine to warm up or
cool down the interior before you arrive.
5. Can I stop a vehicle that is being driven with
the cancel Remote Vehicle Start command?
No. If the vehicle is in motion, the cancel
Remote Vehicle Start button will not stop the
vehicle.
6. Why can’t all mobile devices use the Vehicle
Branded App? The Vehicle Branded App has
been designed to work on most devices with
the Apple® and Android™ operating systems.
The capabilities of these devices allow us to
remotely command your vehicle. Other
operating systems may be supported in the
future.
CONNECTED SERVICES REMOTE HORN
& L
IGHTS FAQS

1.
How long does it take to sound my horn and
flash the lights?
Depending on various
conditions, it can take three minutes or more
for the request to get through to your vehicle.

2. Which is faster, my key fob or the Vehicle
Branded App? Your key fob will sound the horn
and flash the lights quicker; however, its range
is limited. 3.
How do I turn off the horn and lights after I turn
them on? If you are close enough to the
vehicle, you can use the key fob to turn off the
horn and lights by pressing the red Panic
button. Otherwise, Remote Horn & Lights will
continue for a maximum of three minutes.
4. Why can’t all mobile devices use the Vehicle
Branded App? The Vehicle Branded App has
been designed to work on most devices with
the Apple® and Android™ operating systems.
The capabilities of these devices allow us to
remotely command your vehicle. Other
operating systems may be supported in the
future.
CONNECTED SERVICES ACCOUNT
FAQS — IF EQUIPPED

1.
How do I register for my SiriusXM Guardian™
account? There are three ways that you can
register your SiriusXM Guardian™ Account:
Push the ASSIST button. A call will be placed
to an agent who can assist in registering
your new account.
Press the Activate Services icon in the Apps
menu. Select the button to speak with an
agent, who can assist in registering your
new account.
Press the Activate Services icon in the Apps
menu. Enter your email on the touchscreen and then follow the prompts from the
provided email. You will receive an email
with an activation link that will be good for
72 hours. Once you click the activation link,
you will be prompted to fill out your informa
-
tion and accept Terms and Conditions.
Then, you will be directed to the SiriusXM
Guardian™ home page to complete your
profile and demo the remote services.
2. Why do I need an email address? Without an
email address, customers cannot register for
SiriusXM Guardian™. Customers need to
register so they can subscribe to receive
additional services and create a SiriusXM
Guardian™ Security PIN for remote command
requests.
3. How do I create a SiriusXM Guardian™ security
PIN? Set up your SiriusXM Guardian™ Security
PIN during the registration process. The
SiriusXM Guardian™ Security PIN will be
required to authenticate you when accessing
your account via SiriusXM Guardian™ Call or
performing any remote services, such as
Remote Door Lock/Unlock, Remote Horn &
Lights, or Remote Vehicle Start.
4. What if I forgot my SiriusXM Guardian™
security PIN? If you’ve already activated
services and forgot your SiriusXM Guardian™
Security PIN, you can reset the PIN by selecting
Edit Profile on your Owner’s Site.
5

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280SAFETY
FCW Limited Warning
If the instrument cluster displays “ACC/FCW
Limited Functionality” or “ACC/FCW Limited
Functionality Clean Front Windshield”
momentarily, there may be a condition that limits
FCW functionality. Although the vehicle is still
drivable 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.
Pedestrian Emergency Braking (PEB) —
If Equipped
PEB is a subsystem of the Forward Collision
Warning (FCW) system which provides the driver
with audible warnings and visual warnings, in the
instrument cluster display. It may apply limited automatic braking when it detects a potential
frontal collision with a pedestrian/cyclist.
If a PEB event begins at a speed below 39 mph
(62 km/h), the system may provide maximum
braking to mitigate the potential collision with a
pedestrian/cyclist. If the PEB event stops the
vehicle completely, the system will hold the vehicle
at a standstill for two seconds and then release the
brakes. When the system determines a collision
with the pedestrian/cyclist in front of you is no
longer probable, the warning message will be
deactivated.
The minimum speed for PEB activation is 3 mph
(5 km/h).
Turning PEB On Or OffNOTE:The default status of PEB is “On.” This allows the
system to warn you of a possible frontal collision
with the pedestrian.The PEB button is located in the Uconnect display
in the Control settings Ú
page 199.
To turn the PEB system off, push the Pedestrian
Emergency Braking button.
To turn the PEB system back on, push the Warning
Active Braking button.
Changing the PEB status to “Off” deactivates the
system, so no warning or active braking will be
available in case of a possible frontal collision with
the pedestrian/cyclist.
NOTE:The PEB system will retain the last setting selected
by the driver after ignition shut down. The system
will not reset to the default setting when the
vehicle is restarted.
TIRE PRESSURE MONITORING SYSTEM
(TPMS)
(Vehicles Under 10K Gross Vehicle Weight Rating
(GVWR) Only)
The Tire Pressure Monitoring System (TPMS) will
warn the driver of a low tire pressure based on the
vehicle recommended 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 pressure values of
WARNING!
Pedestrian Emergency Braking (PEB) is not
intended to avoid a collision on its own, nor can
PEB detect every type of potential collision with
a pedestrian. 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.

23_DPF_OM_EN_USC_t.book Page 280

SAFETY287
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 customer may choose to disable or enable the
STFA feature through use of the TFA settings in the
radio. If STFA appears grayed out it must be turned
on prior to selecting.
In order to use STFA, the Tire Fill Alert feature must
be enabled through the radio Ú page 199.
The system will be activated when the TPMS
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.
If the hazard lamps do not come on while inflating
or deflating the tire, the TPMS sensor may be in a
null spot preventing the TPMS sensor signal from
being received. In this case, the vehicle may need to be moved either forward or backward slightly to
exit the null spot.
When Tire Fill Alert mode is entered, the tire
pressure display screen will be displayed in the
instrument cluster.
Operation:
The horn will chirp once when the selected pres
-
sure 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)
3500/4500/5500 Series Trucks
Your vehicle may be equipped with a Tire Pressure
Information 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 TPMS sensors (Single Rear Wheel (SRW)
applications)
Six TPMS sensors (Dual Rear Wheel (DRW)
applications)
Pressure display in the instrument cluster
The TPIS will display all four (Single Rear Wheel
(SRW) applications) or six (Dual Rear Wheel (DRW)
applications) 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.
6

23_DPF_OM_EN_USC_t.book Page 287