service indicator RAM 1500 2022 Owners Manual

15
Electronic Park Brake Warning Light Úpage 131
Electronic Stability Control (ESC) Active Warning Light Úpage 131
Electronic Stability Control (ESC) OFF Warning Light Úpage 132
Engine Check/Malfunction Indicator Warning Light (MIL) Úpage 132
Low Washer Fluid Warning Light Úpage 132
Low Fuel Warning Light Úpage 132
Rear Axle Locker Fault Indicator Light Úpage 133
Service Forward Collision Warning (FCW) Light Úpage 133
Yellow Warning Lights
Service Stop/Start System Warning Light
Úpage 133
Service 4WD Warning Light Úpage 133
Service LaneSense Warning Light Úpage 132
Tire Pressure Monitoring System (TPMS) Warning Light Úpage 133
Yellow Indicator Lights
Air Suspension Payload Protection Indicator Light
Úpage 134
Air Suspension Off-Road 1 Indicator Light Úpage 134
Air Suspension Off-Road 2 Indicator Light Úpage 134
Yellow Warning Lights
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112GETTING TO KNOW YOUR INSTRUMENT PANEL
6. Diesel Exhaust Fluid (DEF) Gauge
The DEF Gauge displays the actual level of
Diesel Exhaust Fluid in the DEF tank. DEF is
required to maintain normal vehicle opera -
tion and emissions compliance. If some -
thing is wrong with the gauge, a DEF
Warning Message or Malfunction Indicator
Light (MIL) will be displayed Ú page 125.
NOTE:
• The gauge may take up to five seconds to
update after adding a gallon or more of
Diesel Exhaust Fluid to the DEF tank.
If you have a fault related to the DEF
system, the gauge may not update to the
new level. See an authorized dealer for
service. • The DEF gauge may also not immediately
update after a refill if the temperature of
the DEF fluid is below 12°F (-11°C). The
DEF line heater will possibly warm up the
DEF fluid and allow the gauge to update
after a period of run time. Under very cold
conditions, it is possible that the gauge
may not reflect the new fill level for
several drives.
• Outside temperature can affect DEF consumption. In cold conditions, 12°F
(-11°C) and below, the DEF gauge needle
can stay on a fixed position and may not
move for extended periods of time. This is
a normal function of the system.
7. Fuel Gauge
The gauge shows the level of fuel in the fuel
tank when the ignition switch is in the ON/
RUN position.
The fuel pump symbol points to the
side of the vehicle where the fuel door
is located.

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114GETTING TO KNOW YOUR INSTRUMENT PANEL
PREMIUM INSTRUMENT CLUSTER
D
ESCRIPTIONS — DIESEL

1. Tachometer

Indicates the engine speed in revolutions
per minute (RPM x 1000).
2. Instrument Cluster Display
When the appropriate conditions exist, this
display shows the instrument cluster
display messages Ú page 114.
The display always shows one of the main
menu items after ignition on.
3. Speedometer
Indicates vehicle speed.
4. Diesel Exhaust Fluid (DEF) Gauge
The DEF Gauge displays the actual level of
Diesel Exhaust Fluid in the DEF tank. DEF is
required to maintain normal vehicle opera -
tion and emissions compliance. If some -
thing is wrong with the gauge, a DEF
Warning Message or Malfunction Indicator
Light (MIL) will be displayed Ú page 125.
NOTE:
• The DEF tank on these vehicles is
designed with a large amount of full
reserve. So the level sensor will indicate
a full reading even before the tank is completely full. To put it another way,
there’s additional storage capacity in the
tank above the Full mark that’s not repre
-
sented in the gauge. You may not see any
movement in the reading – even after
driving up to 2,000 miles (3,219 km) in
some cases.
• The gauge may take up to five seconds to update after adding a gallon or more of
DEF to the DEF tank. If you have a fault
related to the DEF system, the gauge may
not update to the new level. See an
authorized dealer for service.
• The DEF gauge may also not immediately update after a refill if the temperature of
the DEF fluid is below 12°F (-11°C). The
DEF line heater will possibly warm up the
DEF fluid and allow the gauge to update
after a period of run time. Under very cold
conditions, it is possible that the gauge
may not reflect the new fill level for
several drives.
• Outside temperature can affect DEF consumption. In cold conditions, 12°F
(-11°C) and below, the DEF gauge needle
can stay on a fixed position and may not
move for extended periods of time. This is
a normal function of the system.
5. Fuel Gauge
The pointer shows the level of fuel in the
fuel tank when the ignition switch is in the
ON/RUN position.
 The fuel pump symbol points to
the side of the vehicle where the
fuel filler door is located.
INSTRUMENT CLUSTER DISPLAY
Your vehicle will be equipped with an instrument
cluster display, which offers useful information to
the driver. With the ignition in the OFF mode,
opening/closing of a door will activate the display
for viewing, and display the total miles, or
kilometers, in the odometer. Your instrument
cluster display is designed to display important
information about your vehicle’s systems and
features. Using a driver interactive display located
on the instrument panel, your instrument cluster
display can show you how systems are working and
give you warnings when they are not. The steering
wheel mounted controls allow you to scroll through
the main menus and submenus. You can access
the specific information you want and make
selections and adjustments.

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GETTING TO KNOW YOUR INSTRUMENT PANEL125
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.
DISPLAYS
When the appropriate conditions exist, the
instrument cluster display displays the following
messages:
System Setup Unavailable – Vehicle Not in Park
System Setup Unavailable – Vehicle in Motion
Exhaust Filter Full Safely Drive at Highway
Speeds To Remedy
Exhaust Filter XX% Full – Power Reduced See
Dealer
Exhaust Service Required – See Dealer Now
Exhaust System – Filter XX% Full Service
Required See Dealer
Exhaust System – Regeneration In Process
Exhaust Filter XX% Full
Exhaust System – Regeneration Completed
Engine Will Not Restart in XXXX mi DEF Low
Refill Soon
Engine Will Not Restart in XXXX mi Refill DEF
Engine Will Not Restart Refill DEF
Service DEF System See Dealer
Incorrect DEF Detected See Dealer
Engine Will Not Restart in XXX mi Service DEF
See Dealer
Engine Will Not Restart Service DEF System See
Dealer
DIESEL EXHAUST FLUID (DEF)
W
ARNING MESSAGES
Your vehicle will begin displaying warning
messages when the DEF level reaches a driving
range of approximately 500 miles (800 km). If the
following warning message sequence is ignored,
your vehicle may not restart unless DEF is added
with in the displayed mileage shown in the cluster
message.
Engine Will Not Restart in XXXX mi DEF Low
Refill Soon — This message will display when
DEF driving range is less than 500 miles, DEF
fluid top off is required within the displayed
mileage. The message will be displayed in the
cluster during vehicle start up with the current
allowed mileage and accompanied by a single
chime. The remaining mileage can be pulled up
anytime in the “Messages” list within the instru -
ment cluster display.
Engine Will Not Restart in XXXX mi Refill DEF —
This message will display when DEF driving
range is less than 200 miles. It is also displayed
at 150 miles and 100 miles. DEF fluid top off is
required within the displayed mileage. The
message will be displayed in the instrument
cluster display during vehicle start up with an
updated distance mileage, and it will be accom -
panied by a single chime. Starting at 100 miles,
remaining range will be continuously displayed
CAUTION!
See an authorized dealer, as damage to the
exhaust system could occur soon with continued
operation.
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126GETTING TO KNOW YOUR INSTRUMENT PANEL
while operating the vehicle. Chimes will also
accompany the 75, 50 and 25 mile remaining
distances. The DEF Low telltale will be on contin -
uously until DEF fluid is topped off.
Engine Will Not Restart Refill DEF — This
message will display when the DEF driving range
is less than one mile, DEF fluid top off is
required or the engine will not restart. The
message will be displayed in the instrument
cluster display during vehicle start up, and it will
be accompanied by a single chime. The DEF Low
telltale will be illuminated continuously until
DEF fluid tank is filled with a minimum of
two gallons of DEF.
DIESEL EXHAUST FLUID (DEF) FAULT
W
ARNING MESSAGES
There are different messages which are displayed
if the vehicle detects that the DEF system has been
filled with a fluid other than DEF, has experienced
component failures, or when tampering has been
detected.
When the DEF system needs to be serviced the
following warnings will display:
Service DEF System See Dealer — This message
will display when the fault is initially detected
and each time the vehicle is started. The
message will be accompanied by a single chime
and the Malfunction Indicator Light. We recom -
mend you drive to the nearest authorized dealer and have your vehicle serviced immediately. If
not corrected in 50 miles, vehicle will enter the
“Engine Will not restart in XXX mi Service DEF
See dealer” warning stage and message.
Incorrect DEF Detected See Dealer
— This
message will display if the DEF system has
detected the incorrect fluid has been introduced
to the DEF tank. The message will be accompa -
nied by a single chime. We recommend you
drive to your nearest authorized dealer and
have your vehicle serviced immediately. If not
corrected in 30 miles, vehicle will enter the
“Engine Will not restart in XXX mi Service DEF
See dealer” warning stage and message.
Engine Will Not Restart in XXX mi Service DEF
See Dealer — This message is first displayed if
the fault detected is not serviced after 50 miles
of operation. It is also displayed at 150 miles,
125 miles and 100 miles. System service is required within the displayed mileage. The
message will be displayed during vehicle start
up with an updated distance mileage, and it will
be accompanied by a single chime. Starting at
100 miles, remaining range will be continuously
displayed while operating the vehicle. Chimes
will also accompany the 75, 50 and 25 mile
remaining distances. We recommend you drive
to the nearest authorized dealer and have your
vehicle serviced immediately.
Engine Will Not Restart Service DEF System See
Dealer — This message will display if DEF
system issue detected is not serviced during the
allowed period. Your engine will not restart
unless your vehicle is serviced by an authorized
dealer. This message will be displayed when
under 1 mile until engine will not start and each
time the vehicle is started, and will be continu -
ously displayed. The message will be accompa -
nied by a single chime. Your Malfunction
Indicator Light will be continuously illumined.
We highly recommend you drive to the nearest
authorized dealer if the message appears while
engine is running.
Engine Will Not Start Service DEF System See
Dealer — This message will display when the
fault detected is not serviced after the Engine
will not restart Service DEF System See Dealer
message is displayed on the next subsequent
restart. Your engine will not start unless your
vehicle is serviced by an authorized dealer.
The message will be accompanied by a single
chime. Your Malfunction Indicator Light will be
continuously illuminated. If the message
appears and you can not start the engine, we
recommend having your vehicle towed to the
nearest authorized dealer immediately.

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128GETTING TO KNOW YOUR INSTRUMENT PANEL
What to do when an electrical load reduction
action message is present (“Battery Saver On” or
“Battery Saver Mode”)
During a trip:
Reduce power to unnecessary loads if possible:
Turn off redundant lights (interior or exte -
rior).
Check what may be plugged in to power
outlets +12 Volts, 115 Volts AC, USB ports.
Check HVAC settings (blower, temperature).
Check the audio settings (volume).
After a trip:
Check if any aftermarket equipment was
installed (additional lights, upfitter electrical
accessories, audio systems, alarms) and review
specifications if any (load and Ignition Off Draw
currents).
Evaluate the latest driving cycles (distance,
driving time and parking time).
The vehicle should have service performed if
the message is still present during consecutive
trips and the evaluation of the vehicle and
driving pattern did not help to identify the cause.
WARNING LIGHTS AND MESSAGES
The warning/indicator lights will illuminate in the
instrument panel together with a dedicated
message and/or acoustic signal when applicable.
These indications are indicative and precautionary
and as such must not be considered as exhaustive
and/or alternative to the information contained in
the Owner’s Manual, which you are advised to read
carefully in all cases. Always refer to the
information in this chapter in the event of a failure
indication. All active telltales will display first if
applicable. The system check menu may appear
different based upon equipment options and
current vehicle status. Some telltales are optional
and may not appear.
RED WARNING LIGHTS
Air Bag Warning Light
This warning light will illuminate to
indicate a fault with the air bag, and will
turn on for four to eight seconds as a bulb
check when the ignition is placed in the
ON/RUN or ACC/ON/RUN position. This light will
illuminate with a single chime when a fault with the
air bag has been detected, it will stay on until the
fault is cleared. If the light is either not on during
startup, stays on, or turns on while driving, have
the system inspected at an authorized dealer as
soon as possible.
Brake Warning Light
This warning light monitors various brake
functions, including brake fluid level and
parking brake application. If the brake
light turns on it may indicate that the
parking brake is applied, that the brake fluid level
is low, or that there is a problem with the Anti-Lock
Brake System reservoir.
If the light remains on when the parking brake has
been disengaged, and the fluid level is at the full
mark on the master cylinder reservoir, it indicates
a possible brake hydraulic system malfunction or
that a problem with the Brake Booster has been
detected by the Anti-Lock Brake System (ABS) /
Electronic Stability Control (ESC) system. In this
case, the light will remain on until the condition has
been corrected. If the problem is related to the
brake booster, the ABS pump will run when
applying the brake, and a brake pedal pulsation
may be felt during each stop.
The dual brake system provides a reserve braking
capacity in the event of a failure to a portion of the
hydraulic system. A leak in either half of the dual
brake system is indicated by the Brake Warning
Light, which will turn on when the brake fluid level
in the master cylinder has dropped below a
specified level.
The light will remain on until the cause is corrected.

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GETTING TO KNOW YOUR INSTRUMENT PANEL129
NOTE:The light may flash momentarily during sharp
cornering maneuvers, which change fluid level
conditions. The vehicle should have service
performed, and the brake fluid level checked.
If brake failure is indicated, immediate repair is
necessary.
Vehicles equipped with the Anti-Lock Brake System
(ABS) are also equipped with Electronic Brake
Force Distribution (EBD). In the event of an EBD
failure, the Brake Warning Light will turn on along
with the ABS Light. Immediate repair to the ABS
system is required.
Operation of the Brake Warning Light can be
checked by turning the ignition switch from the OFF
position to the ON/RUN position. The light should
illuminate for approximately two seconds. The light
should then turn off unless the parking brake is
applied or a brake fault is detected. If the light does
not illuminate, have the light inspected by an
authorized dealer. The light also will turn on when the parking brake
is applied with the ignition switch in the ON/RUN
position.
NOTE:This light shows only that the parking brake is
applied. It does not show the degree of brake appli
-
cation.
Battery Charge Warning Light
This warning light will illuminate when the
battery is not charging properly. If it stays
on while the engine is running, there may
be a malfunction with the charging
system. Contact an authorized dealer as soon as
possible.
This indicates a possible problem with the
electrical system or a related component.
Door Open Warning Light
This indicator will illuminate when a
door is ajar/open and not fully closed.
NOTE:If the vehicle is moving there will also be a single
chime.
Electronic Throttle Control (ETC) Warning
Light
This warning light will illuminate to
indicate a problem with the ETC system.
If a problem is detected while the vehicle
is running, the light will either stay on or
flash depending on the nature of the problem.
Cycle the ignition when the vehicle is safely and
completely stopped and the transmission is placed
in the PARK position. The light should turn off. If
the light remains on with the vehicle running, your
vehicle will usually be drivable; however, see an
authorized dealer for service as soon as possible.
NOTE:This light may turn on if the accelerator and brake
pedals are pressed at the same time.
If the light continues to flash when the vehicle is
running, immediate service is required and you
may experience reduced performance, an
elevated/rough idle, or engine stall and your
vehicle may require towing. The light will come on
when the ignition is placed in the ON/RUN or ACC/
ON/RUN position and remain on briefly as a bulb
check. If the light does not come on during starting,
have the system checked by an authorized dealer.
WARNING!
Driving a vehicle with the red brake light on is
dangerous. Part of the brake system may have
failed. It will take longer to stop the vehicle. You
could have a collision. Have the vehicle checked
immediately.
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130GETTING TO KNOW YOUR INSTRUMENT PANEL
Electric Power Steering (EPS) Fault
Warning Light
This warning light will turn on when
there's a fault with the EPS system
Úpage 173.
Engine Coolant Temperature Warning
Light
This warning light warns of an
overheated engine condition. If the
engine coolant temperature is too high,
this indicator will illuminate and a single
chime will sound. If the temperature reaches the
upper limit, a continuous chime will sound for four
minutes or until the engine is able to cool,
whichever comes first.
If the light turns on while driving, safely pull over
and stop the vehicle. If the Air Conditioning (A/C)
system is on, turn it off. Also, shift the transmission
into NEUTRAL (N) and idle the vehicle. If the
temperature reading does not return to normal,
turn the engine off immediately and call for service
Ú page 387.
Hood Open Warning Light
This warning light will illuminate when the
hood is ajar/open and not fully closed.
NOTE:If the vehicle is moving, there will also be a single
chime.
Oil Pressure Warning Light
This warning light will illuminate, and a
chime will sound, to indicate low engine
oil pressure. If the light and chime turn on
while driving, safely stop the vehicle and
turn off the engine as soon as possible. After the
vehicle is safely stopped, restart the engine and
monitor the Oil Pressure Warning Light. If the Oil
Pressure Warning Light is still illuminated, turn the
engine OFF and contact an authorized dealer for
further assistance. Do not operate the vehicle until
the cause is corrected. If the lamp is no longer
illuminated, the engine can be operated but it is
recommended to take the vehicle to an authorized
dealer as soon as possible.
Do not operate the vehicle until the cause is
corrected. This light does not indicate how much oil
is in the engine. The engine oil level must be
checked under the hood.
Oil Temperature Warning Light
This warning light will illuminate to
indicate the engine oil temperature is
high. If the light turns on while driving,
stop the vehicle and shut off the engine
as soon as possible. Wait for oil temperature to
return to normal levels.
Seat Belt Reminder Warning Light
This warning light indicates when the
driver or passenger seat belt is
unbuckled. When the ignition is first
placed in the ON/RUN or ACC/ON/RUN
position and if the driver’s seat belt is unbuckled,
a chime will sound and the light will turn on. When
driving, if the driver or front passenger seat belt
remains unbuckled, the Seat Belt Reminder Light
will flash or remain on continuously and a chime
will sound Ú page 334.
Tailgate Open Warning Light
This warning light will illuminate when the
tailgate is open.
NOTE:If the vehicle is moving, there will also be a single
chime.
WARNING!
Continued operation with reduced assist could
pose a safety risk to yourself and others. Service
should be obtained as soon as possible.

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GETTING TO KNOW YOUR INSTRUMENT PANEL131
Trailer Brake Disconnected Warning Light
This warning light will illuminate when the
Trailer Brake has been disconnected.

Transmission Temperature Warning Light —
If Equipped

This warning light will illuminate to warn
of a high transmission fluid temperature.
This may occur with strenuous usage
such as trailer towing. If this light turns
on, stop the vehicle and run the engine at idle or
slightly faster, with the transmission in PARK or
NEUTRAL, until the light turns off. Once the light
turns off, you may continue to drive normally.
Vehicle Security Warning Light —
If Equipped
This light will flash at a fast rate for
approximately 15 seconds when the
vehicle security system is arming, and
then will flash slowly until the vehicle
is disarmed.
YELLOW WARNING LIGHTS
Adaptive Cruise Control (ACC) Fault
Warning Light — If Equipped
This warning light will illuminate to
indicate a fault in the ACC system.
Contact an authorized dealer for service
Ú page 178.
Air Suspension Fault Warning Light —
If Equipped
This light will illuminate when a fault is
detected with the air suspension system.
Anti-Lock Brake System (ABS) Warning
Light
This warning light monitors the ABS.
The light will turn on when the ignition is
placed in the ON/RUN or ACC/ON/RUN
position and may stay on for as long as
four seconds. If the ABS light remains on or turns on while
driving, then the Anti-Lock portion of the brake
system is not functioning and service is required as
soon as possible. However, the conventional brake
system will continue to operate normally,
assuming the Brake Warning Light is not also on.
If the ABS light does not turn on when the ignition
is placed in the ON/RUN or ACC/ON/RUN position,
have the brake system inspected by an authorized
dealer.
Electronic Park Brake Warning Light
This warning light will illuminate to
indicate the Electronic Park Brake is not
functioning properly and service is
required. Contact an authorized dealer.
Electronic Stability Control (ESC) Active
Warning Light — If Equipped
This warning light will indicate when the
ESC system is Active. The ESC Indicator
Light in the instrument cluster will come
on when the ignition is placed in the
ON/RUN or ACC/ON/RUN position, and when ESC
is activated. It should go out with the engine
running. If the ESC Indicator Light comes on
continuously with the engine running, a
malfunction has been detected in the ESC system.
If this warning light remains on after several
ignition cycles, and the vehicle has been driven
WARNING!
If you continue operating the vehicle when the
Transmission Temperature Warning Light is
illuminated you could cause the fluid to boil over,
come in contact with hot engine or exhaust
components and cause a fire.
CAUTION!
Continuous driving with the Transmission
Temperature Warning Light illuminated will
eventually cause severe transmission damage
or transmission failure.
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132GETTING TO KNOW YOUR INSTRUMENT PANEL
several miles (kilometers) at speeds greater than
30 mph (48 km/h), see an authorized dealer as
soon as possible to have the problem diagnosed
and corrected.
The ESC OFF Indicator Light and the ESC Indi -
cator Light come on momentarily each time the
ignition is placed in the ON/RUN or ACC/ON/
RUN position.
The ESC system will make buzzing or clicking
sounds when it is active. This is normal; the
sounds will stop when ESC becomes inactive.
This light will come on when the vehicle is in an
ESC event.
Electronic Stability Control (ESC) OFF
Warning Light — If Equipped
This warning light indicates
the ESC is off.
Each time the ignition is turned to ON/RUN or ACC/
ON/RUN, the ESC system will be on, even if it was
turned off previously.
Service LaneSense Warning Light —
If Equipped
This warning light will illuminate when the
LaneSense system is not operating and
requires service. Please contact an
authorized dealer.
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 is less than a ¼ tank,
and the Distance to Empty is less than
50 miles, this light will turn on and
remain on until fuel is added.
A single warning chime will sound with Low Fuel
Warning.
Engine Check/Malfunction Indicator
Warning Light (MIL)
The MIL is a part of an Onboard
Diagnostic System called OBD II that
monitors engine and automatic
transmission control systems. This
warning light will illuminate when the ignition is in
the ON/RUN position before engine start. If the
bulb does not come on when turning the ignition
switch from OFF to ON/RUN, have the condition
checked promptly.
Certain conditions, such as a loose or missing gas
cap, poor quality fuel, etc., may illuminate the light
after engine start. The vehicle should be serviced if the light stays on through several typical driving
styles. In most situations, the vehicle will drive
normally and will not require towing.
When the engine is running, the MIL may flash to
alert serious conditions that could lead to
immediate loss of power or severe catalytic
converter damage. The vehicle should be serviced
by an authorized dealer as soon as possible if this
occurs.
WARNING!
A malfunctioning catalytic converter, as
referenced above, can reach higher
temperatures than in normal operating
conditions. This can cause a fire if you drive
slowly or park over flammable substances such
as dry plants, wood, cardboard, etc. This could
result in death or serious injury to the driver,
occupants or others.
CAUTION!
Prolonged driving with the Malfunction Indicator
Light (MIL) on could cause damage to the
vehicle control system. It also could affect fuel
economy and driveability. If the MIL is flashing,
severe catalytic converter damage and power
loss will soon occur. Immediate service is
required.

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