2023 RAM 1500 brake

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

23_DT_OM_EN_USC_t.book Page 121

122STARTING AND OPERATING
ENGINE BREAK-IN RECOMMENDATIONS
A long break-in period is not required for the engine and
drivetrain (transmission and axle) in your vehicle.
Drive moderately during the first 300 miles (500 km).
After the initial 60 miles (100 km), speeds up to 50 or
55 mph (80 or 90 km/h) are desirable.
While cruising, brief full-throttle acceleration within the
limits of local traffic laws contributes to a good break-in.
Wide-open throttle acceleration in low gear can be
detrimental and should be avoided.
The engine oil installed in the engine at the factory is a
high-quality energy conserving type lubricant. Oil changes
should be consistent with anticipated climate conditions
under which vehicle operations will occur. For the
recommended viscosity and quality grades
Úpage 396.
NOTE:A new engine may consume some oil during its first few
thousand miles (kilometers) of operation. This should be
considered a normal part of the break-in and not inter -
preted as a problem. Please check your oil level with the
engine oil indicator often during the break-in period. Add
oil as required.
PARKING BRAKE
ELECTRIC PARK BRAKE (EPB)
Your vehicle is equipped with an EPB that offers simple
operation, and some additional features that make the
parking brake more convenient and useful.
The parking brake is primarily intended to prevent the
vehicle from rolling while parked. Before leaving the
vehicle, make sure that the parking brake is applied. Also,
be certain to leave the transmission in PARK.
You can engage the parking brake in two ways:
 Manually, by applying the parking brake switch.
 Automatically, by enabling the Auto Park Brake feature
in the Customer Programmable Features section of the
Uconnect settings.
The parking brake switch is located on the instrument
panel to the left of the steering wheel (below the
headlamp switch).

Electric Park Brake Switch

To apply the parking brake manually, pull up on the switch
momentarily. You may hear a slight sound from the back
of the vehicle while the parking brake engages. Once the
park brake is fully engaged, the BRAKE telltale light in the
instrument cluster and an indicator on the switch will
illuminate. If your foot is on the brake pedal while you
apply the parking brake, you may notice a small amount of
brake pedal movement. The parking brake can be applied
even when the ignition switch is OFF but the BRAKE
telltale light will not illuminate, however, it can only be
released when the ignition is in the ON/RUN position.
NOTE:The EPB Warning Light will illuminate if the EPB switch is
held for longer than 20 seconds in either the released or
applied position. The light will extinguish upon releasing
the switch.
If the Auto Park Brake feature is enabled, the parking
brake will automatically engage whenever the
transmission is placed into PARK. If your foot is on the
brake pedal, you may notice a small amount of brake
pedal movement while the parking brake is engaging.
The parking brake will release automatically when the
ignition is ON, the transmission is in DRIVE or REVERSE,
the driver seat belt is buckled, and an attempt is made to
drive away.
To release the parking brake manually, the ignition switch
must be in the ON/RUN position. Put your foot on the
brake pedal, then push the parking brake switch down
momentarily. You may hear a slight whirring sound from
the back of the vehicle while the parking brake
disengages.
CAUTION!
Never use Non-Detergent Oil or Straight Mineral Oil in
the engine or damage may result.

23_DT_OM_EN_USC_t.book Page 122

STARTING AND OPERATING123
(Continued)
You may also notice a small amount of movement in the
brake pedal. Once the parking brake is fully disengaged,
the BRAKE telltale light in the instrument cluster and the
LED indicator on the switch will extinguish.
NOTE:When parking on a hill, it is important to turn the front
wheels toward the curb on a downhill grade and away from
the curb on an uphill grade. Apply the parking brake before
placing the gear selector in PARK, otherwise the load on
the transmission locking mechanism may make it difficult
to move the gear selector out of PARK.
If exceptional circumstances should make it necessary to
engage the parking brake while the vehicle is in motion,
maintain upward pressure on the EPB switch for as long as
engagement is desired. The BRAKE telltale light will
illuminate, and a continuous chime will sound. The rear
stop lamps will also be illuminated automatically while the
vehicle remains in motion.To disengage the parking brake while the vehicle is in
motion, release the switch. If the vehicle is brought to a
complete stop using the parking brake, when the vehicle
reaches approximately 3 mph, (5 km/h) the parking brake
will remain engaged.
In the unlikely event of a malfunction of the EPB system, a
yellow EPB Warning Light will illuminate. This may be
accompanied by the BRAKE telltale light flashing. In this
event, urgent service of the EPB system is required. Do not
rely on the parking brake to hold the vehicle stationary.
Auto Park Brake
The Electric Park Brake (EPB) can be programmed to be
applied automatically whenever the vehicle is at a
standstill and the automatic transmission is placed in
PARK. Auto Park Brake is enabled and disabled by
customer selection through the Customer Programmable
Features section of the Uconnect Settings
Úpage 206.
Any single Auto Park Brake application can be bypassed by
pushing the EPB switch to the release position while the
transmission is placed in PARK.
WARNING!
 Never use the PARK position as a substitute for the
parking brake. Always apply the parking brake fully
when parked to guard against vehicle movement and
possible injury or damage.
 When exiting the vehicle, always remove the key fob
from the ignition and lock your vehicle.
 Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Allowing children to
be in a vehicle unattended is dangerous for a
number of reasons. A child or others could be seri -
ously or fatally injured. Children should be warned
not to touch the parking brake, brake pedal or the
gear selector.
 Do not leave the key fob in or near the vehicle, or in
a location accessible to children, and do not leave a
vehicle equipped with Keyless Enter ‘n Go™ in the
ACC or ON/RUN position. A child could operate power
windows, other controls, or move the vehicle.
 Be sure the parking brake is fully disengaged before
driving; failure to do so can lead to brake failure and
a collision.
 Always fully apply the parking brake when leaving
your vehicle, or it may roll and cause damage or
injury. Also be certain to leave the transmission in
PARK. Failure to do so may allow the vehicle to roll
and cause damage or injury.
CAUTION!
If the Brake System Warning Light remains on with the
parking brake released, a brake system malfunction is
indicated. Have the brake system serviced by an
authorized dealer immediately.
WARNING!
WARNING!
Driving the vehicle with the parking brake engaged, or
repeated use of the parking brake to slow the vehicle,
may cause serious damage to the brake system.
Be sure the parking brake is fully disengaged before
driving; failure to do so can lead to brake failure and a
collision.
4

23_DT_OM_EN_USC_t.book Page 123

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

STARTING AND OPERATING125
IGNITION PARK INTERLOCK
This vehicle is equipped with an Ignition Park Interlock
which requires the transmission to be in PARK before the
ignition can be turned to the OFF position. This helps the
driver avoid inadvertently leaving the vehicle without
placing the transmission in PARK. This system also locks
the transmission in PARK whenever the ignition is in the
OFF position.
NOTE:The transmission is NOT locked in PARK when the ignition
is in the ACC position (even though the engine will be off).
Ensure that the transmission is in PARK, and the ignition
is OFF (not in ACC position) before exiting the vehicle.
BRAKE/TRANSMISSION SHIFT
I
NTERLOCK (BTSI) SYSTEM
This vehicle is equipped with a BTSI system that holds the
transmission gear selector in PARK unless the brakes are
applied. To shift the transmission out of PARK, the engine
must be running and the brake pedal must be pressed. The brake pedal must also be pressed to shift from
NEUTRAL into DRIVE or REVERSE when the vehicle is
stopped or moving at low speeds.
8-SPEED AUTOMATIC TRANSMISSION
Rotary Shifter — If Equipped
The transmission is controlled using a rotary electronic
gear selector located on the instrument panel. The
transmission gear range (PRND) is displayed both above
the gear selector and in the instrument cluster. To select
a gear range, simply rotate the gear selector. You must
press the brake pedal to shift the transmission out of
PARK (or NEUTRAL, when the vehicle is stopped or moving
at low speeds). To shift past multiple gear ranges at once
(such as PARK to DRIVE), simply rotate the gear selector
to the appropriate detent. Select the DRIVE range for
normal driving.
NOTE:In the event of a mismatch between the gear selector
position and the actual transmission gear (for example,
driver selects PARK while driving), the position indicator
will blink continuously until the selector is returned to the
proper position, or the requested shift can be completed.
The electronically controlled transmission adapts its shift
schedule based on driver inputs, along with environmental
and road conditions. The transmission electronics are
self-calibrating; therefore, the first few shifts on a new
vehicle may be somewhat abrupt. This is a normal
condition, and precision shifts will develop within a few
hundred miles (kilometers).

Unintended movement of a vehicle could injure
those in or near the vehicle. As with all vehicles, you
should never exit a vehicle while the engine is
running. Before exiting a vehicle, always come to a
complete stop, then apply the parking brake, shift
the transmission into PARK, and turn the ignition
OFF. When the ignition is in the OFF position, the
transmission is locked in PARK, securing the vehicle
against unwanted movement.
 When exiting the vehicle, always make sure the
ignition is in the OFF position, remove the key fob
from the vehicle, and lock the vehicle.
 Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Allowing children to
be in a vehicle unattended is dangerous for a
number of reasons. A child or others could be seri -
ously or fatally injured. Children should be warned
not to touch the parking brake, brake pedal or the
transmission gear selector.
 Do not leave the key fob in or near the vehicle
(or in a location accessible to children), and do not
leave the ignition in the ACC or ON/RUN position.
A child could operate power windows, other controls,
or move the vehicle.
WARNING!CAUTION!
Shift into or out of PARK or REVERSE only after the
vehicle has come to a complete stop.
 Do not shift between PARK, REVERSE, NEUTRAL, or
DRIVE when the engine is above idle speed.
 Before shifting into any gear, make sure your foot is
firmly pressing the brake pedal.
4

23_DT_OM_EN_USC_t.book Page 125

126STARTING AND OPERATING

Only shift from DRIVE to PARK or REVERSE when the
accelerator pedal is released and the vehicle is stopped.
Be sure to keep your foot on the brake pedal when shifting
between these gears.
The transmission gear selector has only PARK, REVERSE,
NEUTRAL, and DRIVE positions. Manual downshifts can be
made using the Electronic Range Select (ERS) shift control.
Pushing the GEAR “-”/GEAR “+” switches (on the steering
wheel) while in the DRIVE position will select the highest
available transmission gear, and will display that gear limit
in the instrument cluster as 1, 2, 3, etc.

Ú
page 128. Some
models will display both the selected gear limit, and the
actual current gear, while in ERS mode.
Electronic Transmission Gear Selector

Console Shifter — If Equipped

The transmission gear range is displayed both beside the
gear selector and in the instrument cluster. To select a gear
range, push the lock button on the gear selector and move
the selector rearward or forward. To shift the transmission
out of PARK (P), the engine must be running and the brake
pedal must be pressed. You must also press the brake pedal to shift from NEUTRAL
(N) into DRIVE (D) or REVERSE (R) when the vehicle is
stopped or moving at low speeds. Select the DRIVE range for
normal driving.

NOTE:

The transmission electronics are self-calibrating; there -
fore, the first few shifts on a new vehicle may be some -
what abrupt. This is a normal condition, and precision
shifts will develop within a few hundred miles
(kilometers).
 In the event of a mismatch between the gear selector
position and the actual transmission gear (for example,
driver selects PARK while driving), the position indi -
cator will blink continuously until the selector is
returned to the proper position, or the requested shift
can be completed.
The electronically controlled transmission adapts its shift
schedule based on driver inputs, along with environmental
and road conditions.
Only shift from DRIVE to PARK or REVERSE when the
accelerator pedal is released and the vehicle is stopped.
Be sure to keep your foot on the brake pedal when shifting
between these gears.
The transmission gear selector provides PARK, REVERSE,
NEUTRAL, and SPORT (S) (AutoStick) shift positions.
Manual shifts can be made using the AutoStick shift
control. Toggling the gear selector forward (-) or rearward
(+) while in the SPORT (AutoStick) position (beside the
DRIVE position), or tapping the paddle shifters (+/-) (if
equipped), will manually select the transmission gear, and
will display the current gear in the instrument cluster
Úpage 129.

Gear Selector

NOTE:
If the gear selector cannot be moved to the PARK,
REVERSE, or NEUTRAL position (when pushed forward), it
is probably in the AutoStick (+/-) position (beside the
DRIVE position). In AutoStick mode, the transmission gear
(1, 2, 3, etc.) is displayed in the instrument cluster. Move
the gear selector to the right (into the DRIVE position) for
access to PARK, REVERSE, and NEUTRAL.
Gear Ranges
Do not press the accelerator pedal when shifting from
PARK or NEUTRAL into another gear range.
NOTE:After selecting any gear range, wait a moment to allow the
selected gear to engage before accelerating. This is espe -
cially important when the engine is cold.

23_DT_OM_EN_USC_t.book Page 126

STARTING AND OPERATING127
PARK (P)
This range supplements the parking brake by locking the
transmission. The engine can be started in this range.
Never attempt to use PARK while the vehicle is in motion.
Apply the parking brake when exiting the vehicle in this
range.
When parking on a hill, apply the parking brake before
shifting the transmission to PARK. As an added
precaution, turn the front wheels toward the curb on a
downhill grade and away from the curb on an uphill grade.
NOTE:On four-wheel drive vehicles be sure that the transfer case
is in a drive position.
When exiting the vehicle, always:
Apply the parking brake.
 Shift the transmission into PARK.
 Turn the engine off.
 Remove the key fob from the vehicle. The following indicators should be used to ensure that you
have properly engaged the transmission into the PARK
position:

Look at the transmission gear position display and
verify that it indicates the PARK position (P), and is not
blinking.
 With the brake pedal released, verify that the gear
selector will not move out of PARK.
REVERSE (R)
This range is for moving the vehicle backward. Shift into
REVERSE only after the vehicle has come to a complete
stop.
NEUTRAL (N)
Use this range when the vehicle is standing for prolonged
periods with the engine running. Apply the parking brake
and shift the transmission into PARK if you must exit the
vehicle. DRIVE (D)
This range should be used for most city and highway
driving. It provides the smoothest upshifts and downshifts,
and the best fuel economy. The transmission
automatically upshifts through all forward gears.
When frequent transmission shifting occurs (such as
when operating the vehicle under heavy loading
conditions, in hilly terrain, traveling into strong head
winds, or while towing a heavy trailer), select TOW/HAUL
mode or use the Electronic Range Select (ERS) shift
control to select a lower gear range
Úpage 128. Under
these conditions, using a lower gear range will improve
performance and extend transmission life by reducing
excessive shifting and heat buildup.
During extremely cold temperatures (-22°F [-30°C] or
below), transmission operation may be modified
depending on engine and transmission temperature as
well as vehicle speed. Normal operation will resume once
the transmission temperature has risen to a suitable level.
CAUTION!
 DO NOT race the engine when shifting from PARK or
NEUTRAL into another gear range, as this can
damage the drivetrain.
 Before moving the transmission gear selector out of
PARK, you must start the engine, and also press the
brake pedal. Otherwise, damage to the gear selector
could result.
WARNING!
Do not coast in NEUTRAL and never turn off the ignition
to coast down a hill. These are unsafe practices that
limit your response to changing traffic or road
conditions. You might lose control of the vehicle and
have a collision.
CAUTION!
Towing the vehicle, coasting, or driving for any other
reason with the transmission in NEUTRAL can cause
severe transmission damage.
For Recreational Towing
Úpage 187.
For Towing A Disabled Vehicle
Úpage 330.
4

23_DT_OM_EN_USC_t.book Page 127

STARTING AND OPERATING131
Four-Wheel Drive Low Range (4WD LOW) — This range
provides low speed four-wheel drive. It maximizes
torque (increased torque over 4WD HIGH) to the front
driveshaft; allowing front and rear wheels to rotate at
the same speed. This range provides additional trac -
tion and maximum pulling power for loose or slippery
road surfaces only. Do not exceed 25 mph (40 km/h)
in this range.
 N (Neutral) — This range disengages both the front and
rear driveshafts from the powertrain. To be used for flat
towing behind another vehicle
Úpage 187.
NOTE:
The 4WD HIGH and 4WD LOW positions are designed
for loose, slippery road surfaces only. Driving in the
4WD HIGH and 4WD LOW positions on dry, hard
surfaced roads may cause increased tire wear and
damage to the driveline components.
 The transfer case N (Neutral) button is located in the
center of the 4WD Control Switch and is pushed by
using a ballpoint pen or similar object. The transfer
case N (Neutral) position is to be used for recreational
towing only
Úpage 187.
Transfer Case Position Indicator Lights
The Transfer Case Position Indicator Lights (4WD HIGH
and 4WD LOW) are located in the instrument cluster and
indicate the current and desired transfer case selection.
When you select a different transfer case position, the
indicator lights will do the following:

1. The current position indicator light will turn off.

2. The selected position indicator light will flash until the transfer case completes the shift.
3. When the shift is complete, the indicator light for the selected position will stop flashing and remain on. If the transfer case does not shift into the desired position,
one or more of the following events may occur:

1. The indicator light for the current position will
remain on.

2. The newly selected position indicator light will continue to flash.
3. If the transfer case will not shift, a message will
appear on the cluster stating the 4WD shift has
canceled.NOTE:Before retrying a selection, make certain that all the
necessary requirements for selecting a new transfer case
position have been met. To retry the selection, push the
current position, wait five seconds, and retry selection.
The SERV 4WD Warning Light monitors the electronic shift
four-wheel drive system. If this light remains on after
engine start-up or illuminates during driving, it means that
the four-wheel drive system is not functioning properly and
that service is required.WARNING!
 You or others could be injured or killed if you leave
the vehicle unattended with the transfer case in the
N (Neutral) position without first fully engaging the
parking brake. The transfer case N (Neutral) position
disengages both the front and rear drive shaft from
the powertrain, and will allow the vehicle to roll, even
if the transmission is in PARK. The parking brake
should always be applied when the driver is not in 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.
WARNING!
Always engage the parking brake when powering down
the vehicle if the SERV 4WD Warning Light is
illuminated. Not engaging the parking brake may allow
the vehicle to roll which may cause personal injury or
death.
4

23_DT_OM_EN_USC_t.book Page 131