2023 RAM 1500 air condition

102GETTING TO KNOW YOUR INSTRUMENT PANEL
LaneSense — If Equipped
The instrument cluster display displays the current
LaneSense system settings. The information displayed
depends on LaneSense system status and the conditions
that need to be met
Úpage 116.
Vehicle Info
Push and release the up or down arrow button until
the Vehicle Info menu icon is displayed in the instrument
cluster display. Push and release the left or right
arrow button to scroll through the information submenus
and push and release the OK button to select or reset the
resettable submenus.
BASE AND MIDLINE CLUSTER
 Tire Pressure Monitor System
 Air Suspension — If Equipped
 Coolant Temperature — If Equipped
 Trans Temperature
 Oil Temperature
 Oil Pressure — If Equipped
 Oil Life
 Battery Voltage — If Equipped
 Gauge Summary — If Equipped
 Coolant Temp
 Trans Temp
 Oil Temp
 Oil Pressure
 Engine Hours — If Equipped
PREMIUM CLUSTER
Fuel Economy
 Average
 Current
 Range to Empty
 Gauge Summary
 Coolant Temperature — If Equipped
 Battery Voltage — If Equipped
 Trans Temperature
 Oil Summary
 Oil Temperature
 Oil Life
 Oil Pressure — If Equipped
 Tire Pressure Monitor System
 Stop/Start — If Equipped
 Air Suspension Status — If Equipped
 Engine Hours — If Equipped
Off Road – If Equipped
Push and release the up or down arrow button
until the Off Road menu icon is displayed in the instrument
cluster display. Push and release the left or right
arrow button to scroll through the information submenus. 
Vehicle Dynamics
 Front Wheel Angle: displays the graphical and
numerical value of calculated average front wheel
angle from the steering wheel orientation.
 Transfer Case Lock Status: displays “Lock”
graphic only during 4WD High, 4WD Auto, 4WD
Low status.
 Axle Lock And Sway Bar Status (If Equipped):
displays front and rear or rear only axle locker
graphic, and sway bar connection graphic with text
message (connected or disconnected).
 Pitch And Roll
 Displays the pitch and roll of the vehicle in the
graphic with the angle number on the screen.
NOTE:When vehicle speed becomes too high to display the pitch
and roll, “- -” will display in place of the numbers, and the
graphic will be grayed out. A message indicating the
necessary speed for the feature to become available will
also display.
Fuel Economy
Push and release the up or down arrow button until
the Fuel Economy menu item is highlighted in the
instrument cluster display. Push and hold the OK button to
reset Average Fuel Economy.
 Current Fuel Economy
 Average Fuel Economy
 Range To Empty

23_DT_OM_EN_USC_t.book Page 102

108GETTING TO KNOW YOUR INSTRUMENT PANEL
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.
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 application.
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.
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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GETTING TO KNOW YOUR INSTRUMENT PANEL109
Electric Power Steering (EPS) Fault
Warning Light
This warning light will turn on when there's a
fault with the EPS system Úpage 141.
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.
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
Úpage 327.
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 light 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.
WARNING!
Continued operation with reduced assist could pose a
safety risk to yourself and others. Service should be
obtained as soon as possible.3

23_DT_OM_EN_USC_t.book Page 109

112GETTING TO KNOW YOUR INSTRUMENT PANEL
Rear Axle Locker Fault Warning Light —
If Equipped
This warning light will illuminate to indicate
when a rear axle locker fault has been
detected.
Service Forward Collision Warning (FCW)
Light — If Equipped
This warning light will illuminate to indicate a
fault in the FCW System. Contact an authorized
dealer for service
Úpage 274.
Service Stop/Start System Warning Light —
If Equipped
This warning light will illuminate when the
Stop/Start system is not functioning properly
and service is required. Contact an authorized
dealer for service.
Service 4WD Warning Light — If Equipped
This warning light will illuminate to signal a fault
with the 4WD system. If the light stays on or
comes on during driving, it means that the 4WD
system is not functioning properly and that
service is required. We recommend you drive to the
nearest service center and have the vehicle serviced
immediately.
Cruise Control Fault Warning Light
This warning light will illuminate to indicate the
Cruise Control System is not functioning
properly and service is required. Contact 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 recommended 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 previously
mentioned, 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.
As an added safety feature, your vehicle has been
equipped with a TPMS that illuminates a low tire pressure
telltale when one or more of your tires is significantly
underinflated. 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 underinflated tire
causes the tire to overheat and can lead to tire failure.
Underinflation 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 underinflation has
not reached the level to trigger illumination of the TPMS
low tire pressure telltale.
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.
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.

23_DT_OM_EN_USC_t.book Page 112

STARTING AND OPERATING121
(Continued)
IF ENGINE FAILS TO START
If the engine fails to start after you have followed the
“Normal Starting” procedure and the vehicle has not
experienced an Extended Park condition as defined
above, it may be flooded. Push the accelerator pedal all
the way to the floor and hold it there while the engine is
cranking. This should clear any excess fuel in case the
engine is flooded.
The starter motor will engage automatically, run for 10
seconds, and then disengage. Once this occurs, release
the accelerator pedal and the brake pedal, wait 10 to 15
seconds, then repeat the “Normal Starting” procedure.
If the engine has been flooded, it may start to run, but not
have enough power to continue running when the ignition
button/key is released. If this occurs, continue cranking
with the accelerator pedal pushed all the way to the floor.
Release the accelerator pedal and the ignition button/key
once the engine is running smoothly.
If the engine shows no sign of starting after a 10 second
period of engine cranking with the accelerator pedal held
to the floor, wait 10 to 15 seconds, then repeat the
“Normal Starting” procedure.
AFTER STARTING
The idle speed is controlled automatically, and it will
decrease as the engine warms up.
ENGINE BLOCK HEATER — IF EQUIPPED

Engine Block Heater Cord Location

The engine block heater warms engine coolant and
permits quicker starts in cold weather. Connect the heater
cord to a ground-fault interrupter protected 110–115 Volt
AC electrical outlet with a grounded, three-wire extension
cord.
To ensure reliable starting at these temperatures, use of
an externally powered electric engine block heater
(available from an authorized dealer) is recommended.
The engine block heater cord is routed under the hood on
the passenger side of the vehicle next to the engine
coolant reservoir.
WARNING!
Never pour fuel or other flammable liquid into the
throttle body air inlet opening in an attempt to start
the vehicle. This could result in flash fire causing
serious personal injury.
 Do not attempt to push or tow your vehicle to get it
started. Vehicles equipped with an automatic trans -
mission cannot be started this way. Unburned fuel
could enter the catalytic converter and once the
engine has started, ignite and damage the converter
and vehicle.
 If the vehicle has a discharged battery, booster
cables may be used to obtain a start from a booster
battery or the battery in another vehicle. This type of
start can be dangerous if done improperly
Úpage 325.
CAUTION!
To prevent damage to the starter, do not crank the
engine for more than 10 seconds at a time.
Wait 10 to 15 seconds before trying again.
WARNING!
WARNING!
Remember to disconnect the engine block heater cord
before driving. Damage to the 110-115 Volt electrical
cord could cause electrocution.
4

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124STARTING AND OPERATING
(Continued)
SafeHold
SafeHold is a safety feature of the Electric Park Brake
(EPB) system that will engage the parking brake
automatically if the vehicle is left unsecured while the
ignition is in ON/RUN.
The parking brake will automatically engage if all of the
following conditions are met:
The vehicle is at a standstill.
 There is no attempt to press the brake pedal and accel -
erator pedal.
 The seat belt is unbuckled.
 The driver door is open.
SafeHold can be temporarily bypassed by pushing the EPB
switch while the driver door is open. Once manually
bypassed, SafeHold will be enabled again once the vehicle
reaches 12 mph (20 km/h) or the ignition is turned to the
OFF position and back to ON again.
Brake Service Mode
We recommend having your brakes serviced by an
authorized dealer. You should only make repairs for which
you have the knowledge and the right equipment.
You should only enter Brake Service mode during
brake service. When servicing your rear brakes, it may be necessary for
you or your technician to push the rear piston into the rear
caliper bore. With the Electric Park Brake (EPB) system,
this can only be done after retracting the EPB actuator.
Fortunately, actuator retraction can be done easily by
entering the Brake Service mode through the Uconnect
Settings in your vehicle. This menu-based system will
guide you through the steps necessary to retract the EPB
actuator in order to perform rear brake service.
Service Mode has requirements that must be met in order
to be activated:

The vehicle must be at a standstill.
 The parking brake must be unapplied.
 The transmission must be in PARK or NEUTRAL.
While in Service Mode, the EPB Warning Light will flash
continuously while the ignition is in ON/RUN.
When brake service work is complete, the following steps
must be followed to reset the park brake system to normal
operation:
 Ensure the vehicle is at a standstill.
 Press the brake pedal with moderate force.
 Apply the EPB Switch.
AUTOMATIC TRANSMISSION
You must press and hold the brake pedal while shifting out
of PARK.
WARNING!
You can be badly injured working on or around a motor
vehicle. Do only that service work for which you have
the knowledge and the right equipment. If you have any
doubt about your ability to perform a service job, take
your vehicle to a competent mechanic.
WARNING!
Never use the PARK position as a substitute for the
parking brake. Always apply the parking brake fully
when exiting the vehicle to guard against vehicle
movement and possible injury or damage.
 Your vehicle could move and injure you and others if
it is not in PARK. Check by trying to move the trans -
mission gear selector out of PARK with the brake
pedal released. Make sure the transmission is in
PARK before exiting the vehicle.
 The transmission may not engage PARK if the vehicle
is moving. Always bring the vehicle to a complete
stop before shifting to PARK, and verify that the
transmission gear position indicator solidly indicates
PARK (P) without blinking. Ensure that the vehicle is
completely stopped, and the PARK position is prop -
erly indicated, before exiting the vehicle.
 It is dangerous to shift out of PARK or NEUTRAL if the
engine speed is higher than idle speed. If your foot is
not firmly pressing the brake pedal, the vehicle could
accelerate quickly forward or in reverse. You could
lose control of the vehicle and hit someone or
something. Only shift into gear when the engine is
idling normally and your foot is firmly pressing the
brake pedal.

23_DT_OM_EN_USC_t.book Page 124

136STARTING AND OPERATING
Automatic Aero Mode
To improve aerodynamics, the air suspension system has
a feature which will put the vehicle into Aero Height
automatically at higher speeds
Úpage 98.
Automatic Aero Mode may be disabled through vehicle
settings in the Uconnect Radio (if equipped)
Úpage 191.
Tire Jack Mode
To assist with changing a tire, the air suspension system
has a feature which allows the automatic leveling to be
disabled
Úpage 191.
Transport Mode
For towing your vehicle with four wheels off the road, the
air suspension system has a feature which will put the
vehicle into Entry/Exit height and disable the automatic
load leveling system
Úpage 191.
Wheel Alignment Mode
Before performing a wheel alignment, this mode must be
enabled which will put the vehicle into NRH and disable
automatic leveling
Úpage 191.
Protection Strategy
In order to protect the air suspension system, the vehicle
will disable load leveling as required (suspension
overloaded, battery charge low, etc.). Load leveling will
automatically resume as soon as system operation
requirements are met. See an authorized dealer if system
does not resume.
NOTE:For towing with air suspension Úpage 173.
INSTRUMENT CLUSTER DISPLAY
M
ESSAGES
When the appropriate conditions exist, a message will
appear in the instrument cluster display Úpage 98.
An audible chime will be heard whenever a system error
has been detected.
See an authorized dealer for system service if normal
operation does not resume.
OPERATION

Air Suspension Switch

The indicator lamps 1 through 5 will illuminate to show the
current position of the vehicle. Flashing indicator lamps
will show a position which the system is working to
achieve. When raising, if multiple indicator lamps are
flashing, the highest flashing indicator lamp is the position
the system is working to achieve.
When lowering, if multiple indicators are flashing, the
lowest solid indicator lamp is the position the system is
working to achieve. Pushing the height selector up once will move the
suspension one position higher from the current position,
assuming all conditions are met (i.e., ignition in ON/RUN
position, engine running, speed below threshold, etc.).
The height selector switch can be pushed up multiple
times, each push will raise the requested level by one
position up to a maximum position of OR2 or the highest
position allowed based on current conditions
(i.e., vehicle speed, etc.).
Pushing the height selector down once will move the
suspension one position lower from the current level,
assuming all conditions are met (i.e., ignition in ON/RUN
position, engine running, doors closed, speed below
threshold, etc.). The height selector switch can be pushed
down multiple times, each push will lower the requested
level by one position down to a minimum of Entry/Exit
Mode or the lowest position allowed based on current
conditions (i.e., vehicle speed, etc.).
Automatic height changes will occur based on vehicle
speed and the current vehicle height. The indicator lamps
and instrument cluster display messages will operate the
same for automatic changes and user requested changes.

Off-Road 2 (OR2) – Indicator lamps 5, 4, 3, 2 and 1 will
be illuminated.
 Off-Road 1 (OR1) – Indicator lamps 5, 4, 3 and 2 will be
illuminated.
 Normal Ride Height (NRH) – Indicator lamps 5, 4 and 3
will be illuminated.

23_DT_OM_EN_USC_t.book Page 136

STARTING AND OPERATING139
Wheel Alignment Mode
Before performing a wheel alignment, this mode must be
enabled which moves the vehicle to normal ride height
and disables the automatic leveling
Úpage 191.
Protection Strategy
In order to protect the air suspension system, the vehicle
will disable load leveling as required (suspension
overloaded, battery charge low, etc.). Load leveling will
automatically resume as soon as system operation
requirements are met. See an authorized dealer if system
does not resume.
NOTE:For towing with air suspension Úpage 173.
INSTRUMENT CLUSTER DISPLAY
M
ESSAGES
When the appropriate conditions exist, a message will
appear in the instrument cluster display Úpage 98.
An audible chime will be heard whenever a system error
has been detected.
See an authorized dealer for system service if normal
operation does not resume.
OPERATION

Air Suspension Switch

The indicator lamps 1 through 4 will illuminate to show the
current position of the vehicle. Flashing indicator lamps
will show a position which the system is working to
achieve. When raising or lowering, the flashing indicator
lamp is the position the system is working to achieve.
Pushing the height selector switch up once will move the
suspension one position higher from the current position,
assuming all conditions are met (i.e., key in ON/RUN
position, engine running, speed below threshold, etc.).
The height selector switch can be pushed up multiple
times, each push will raise the requested level by one
position up to a maximum position of OR or the highest
position allowed based on current conditions
(i.e., vehicle speed, etc.). Pushing the height selector switch down once will move
the suspension one position lower from the current level,
assuming all conditions are met (i.e., key in ON/RUN
position, engine running, doors closed, speed below
threshold, etc.). The height selector switch can be pushed
down multiple times, each push will lower the requested
level by one position down to a minimum of Entry/Exit
Mode or the lowest position allowed based on current
conditions (i.e., vehicle speed, etc.).
Automatic height changes will occur based on vehicle
speed and the current vehicle height. The indicator lamps
and instrument cluster display messages will operate the
same for automatic changes and user requested changes.

Off-Road 1 (OR1) – Indicator lamps 4, 3, 2, and 1 will
be illuminated.
 Normal Ride Height (NRH) – Indicator lamps 4, 3, and
2 will be illuminated.
 Aero Height– Indicator lamps 4 and 3 will be
illuminated.
 Entry/Exit – Indicator lamp 4 will be illuminated.
Entry/Exit can be requested up to 33 mph (53 km/h).
If vehicle speed is reduced to, and kept below, 15 mph
(24 km/h) indicator lamp 3 will flash and indicator
lamp 4 will remain solid until Entry/Exit is achieved at
which point indicator lamp 3 will turn off.
 Automatic Aero Mode – Indicator lamps 5 and 4 will be
illuminated.
 Transport Mode – No indicator lamps will be illumi -
nated. Transport Mode is disabled by driving the
vehicle or disabling through the Uconnect settings.
4

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