
STARTING AND OPERATING153
(Continued)
(Continued)
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 fault lamp 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 transmission 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 indi
-
cator solidly indicates PARK (P) without 
blinking. Ensure that the vehicle is completely 
stopped, and the PARK position is properly 
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.
WARNING!
4
22_DT_OM_EN_USC_t.book  Page 153   

154STARTING AND OPERATING  
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.
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 transmis -
sion 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 chil -
dren to be in a vehicle unattended is 
dangerous for a number of reasons. A child or 
others could be seriously or fatally injured. 
Children should be warned not to touch the 
parking brake, brake pedal or the transmis -
sion 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.
22_DT_OM_EN_USC_t.book  Page 154   

STARTING AND OPERATING157
(Continued) 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.
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 transmis
-
sion 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 chil -
dren to be in a vehicle unattended is 
dangerous for a number of reasons. A child or 
others could be seriously or fatally injured. 
Children should be warned not to touch the 
parking brake, brake pedal or the transmis -
sion gear selector.
WARNING!
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.
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!
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  Ú page 228.
For Towing A Disabled Vehicle  Ú page 390.
4
22_DT_OM_EN_USC_t.book  Page 157   

158STARTING AND OPERATING  
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 158. 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.
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 may operate only in 
certain gears, or may not shift at all.  Vehicle performance may be severely degraded 
and the engine may stall. In some situations, the 
transmission may not re-engage if the engine is 
turned off and restarted. The Malfunction Indicator 
Light (MIL) may be illuminated. A message in the 
instrument cluster will inform the driver of the 
more serious conditions, and indicate what actions 
may be necessary.
In the event of a momentary problem, the 
transmission can be reset to regain all forward 
gears by performing the following steps:
NOTE:In cases where the instrument cluster message 
indicates the transmission may not re-engage after 
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, an authorized dealer service is 
required.
Electronic Range Select (ERS) Operation — 
If Equipped
The ERS shift control allows the driver to limit the 
highest available gear when the transmission is in 
DRIVE and ERS mode is not active. For example, if 
you set the transmission gear limit to FOURTH 
gear, the transmission will hold that gear and not 
shift above FOURTH gear, but will shift through the 
lower gears normally.
NOTE:ERS will only upshift during a FIRST to SECOND 
gear shift when in 4WD LOW. All other ranges will 
hold the gear.
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 “-” button (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 “-” 
or “+” button will change the top available gear.
22_DT_OM_EN_USC_t.book  Page 158   
![RAM 1500 2022  Owners Manual 
166STARTING AND OPERATING  
Aero Height (Lowers the vehicle approximately 
0.6 inch [15 mm]) – This position provides 
improved aerodynamics by lowering the vehicle. 
The vehicle will automatica RAM 1500 2022  Owners Manual 
166STARTING AND OPERATING  
Aero Height (Lowers the vehicle approximately 
0.6 inch [15 mm]) – This position provides 
improved aerodynamics by lowering the vehicle. 
The vehicle will automatica](/manual-img/34/59196/w960_59196-167.png)
166STARTING AND OPERATING  
Aero Height (Lowers the vehicle approximately 
0.6 inch [15 mm]) – This position provides 
improved aerodynamics by lowering the vehicle. 
The vehicle will automatically enter Automatic 
Aero Mode when the vehicle speed remains 
between 62 mph (100 km/h) and 66 mph 
(106 km/h) for greater than 20 seconds or if the 
vehicle speed exceeds 66 mph (106 km/h). The 
vehicle will return to NRH from Aero Mode if the 
vehicle speed remains between 30 mph 
(48 km/h) and 35 mph (56 km/h) for greater 
than 20 seconds or if the vehicle speed falls 
below 30 mph (48 km/h).
NOTE:
Automatic Aero mode will be disabled if a 
trailer is detected to prevent shifting loads.
Speed thresholds for raising/lowering the 
vehicle automatically at higher speeds only 
apply if Automatic Aero Mode is enabled in 
your Uconnect Radio settings.
To enter Aero Height manually push the height 
selector switch down once from NRH at any 
vehicle speed. To return to NRH push the height 
selector switch up once while vehicle speed is 
less than 56 mph (90 km/h).
NOTE:Automatic Aero Mode may be disabled through 
vehicle settings in the instrument cluster display  
Ú page 114 or through your Uconnect Radio (if 
equipped)  Ú page 234.
Entry/Exit Height (Lowers the vehicle approxi -
mately 2 inches [51 mm])  – This position lowers 
the vehicle for easier passenger entry and exit 
as well as lowering the vehicle for easier loading 
and unloading of cargo. To enter Entry/Exit 
Mode, push the height selector switch down 
once from the NRH while the vehicle speed is 
below 33 mph (53 km/h). Once the vehicle 
speed goes below 15 mph (24 km/h) the 
vehicle height will begin to lower. If the vehicle 
speed remains between 15 mph (24 km/h) and 
25 mph (40 km/h) for greater than 60 seconds, 
or the vehicle speed exceeds 25 mph (40 km/h) 
the Entry/Exit change will be canceled. To return 
to Normal Height Mode, push the height 
selector switch up once while in Entry/Exit or 
drive the vehicle over 15 mph (24 km/h).
NOTE:Entry/Exit Height may be achieved using the 
Remote Lowering feature on your key fob for easier 
entry/loading  Ú page 19. The system requires that the ignition be in the ON/
RUN position or the engine running for all user 
requested changes. When lowering the vehicle, all 
of the doors must be closed. If a door is opened at 
any time while the vehicle is lowering, the change 
will not be completed until the open door(s) is 
closed.
This system uses a lifting and lowering pattern 
which keeps the headlights from incorrectly 
shining into oncoming traffic. When raising the 
vehicle, the rear of the vehicle will move up first 
and then the front. When lowering the vehicle, the 
front will move down first and then the rear.
After the engine is turned off, it may be noticed that 
the air suspension system operates briefly; this is 
normal. The system is correcting the position of the 
vehicle to ensure a proper appearance.
To assist with changing a spare tire, the air 
suspension system has a feature which allows the 
automatic leveling to be disabled  Ú
page 114.
CAUTION!
When in ENTRY/EXIT Height, be aware of your 
surroundings, you may not have the clearance 
required for certain areas and vehicle damage 
may occur.
22_DT_OM_EN_USC_t.book  Page 166   

168STARTING AND OPERATING  
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.
Aero Height– Indicator lamps 5 and 4 will be illu
-
minated.
Entry/Exit – Indicator lamp 5 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 4  will flash and indicator lamp 5 will remain solid 
until Entry/Exit is achieved at which point indi -
cator lamp 4 will turn off.
Automatic Aero Mode – Indicator lamps 5 and 4 
will be illuminated.
Transport Mode – No indicator lamps will be illu -
minated. Transport Mode is disabled by driving 
the vehicle or disabling in the Uconnect settings.
Tire/Jack Mode – Indicator lamps 5 and 1 will 
be illuminated. Tire/Jack Mode is disabled by 
driving the vehicle or disabling in the Uconnect 
settings.
Wheel Alignment Mode – Indicator lamps 3, 4, 
and 5 will be illuminated. Wheel Alignment 
Mode is disabled by driving the vehicle or 
disabling in the Uconnect settings.
22_DT_OM_EN_USC_t.book  Page 168   

170STARTING AND OPERATING  
NOTE:
Automatic Aero mode will be disabled if a 
trailer is detected to prevent shifting loads.
Speed thresholds for raising or lowering the 
vehicle only apply if Automatic Aero Mode is 
enabled through vehicle settings on your 
Uconnect Radio.
To enter Aero Height manually push the 
height selector switch down once from NRH 
at any vehicle speed. To return to NRH push 
the height selector switch up once while 
vehicle speed is less than 56 mph (90 km/
h).
Automatic Aero Mode may be disabled 
through vehicle settings on your Uconnect 
Radio.
Entry/Exit Height (Lowers the vehicle approxi -
mately 3 inches [73 mm])  – This position lowers 
the vehicle for easier passenger entry and exit 
as well as lowering the vehicle for easier loading 
and unloading of cargo. To enter Entry/Exit 
Mode, push the height selector switch down 
twice from the NRH while the vehicle speed is 
below 33 mph (53 km/h). Once the vehicle 
speed goes below 15 mph (24 km/h) the 
vehicle height will begin to lower. If the vehicle 
speed remains between 15 mph (24 km/h) and 
25 mph (40 km/h) for greater than 60 seconds, 
or the vehicle speed exceeds 25 mph (40 km/h) 
the Entry/Exit change will be canceled. To return  to Normal Height Mode, push the height 
selector switch up twice while in Entry/Exit or 
drive the vehicle over 15 mph (24 km/h). Entry/
Exit Height may not be available due to vehicle 
payload, an instrument cluster display message 
will be shown when this occurs  Ú
page 114.
The system requires that the ignition be in the ON/
RUN position or the engine running for all user 
requested changes. When lowering the vehicle, all 
of the doors must be closed. If a door is opened at 
any time while the vehicle is lowering, the change 
will not be completed until the open door(s) is 
closed.
This system uses a lifting and lowering pattern 
which keeps the headlights from incorrectly 
shining into oncoming traffic. When raising the 
vehicle, the rear of the vehicle will move up first 
and then the front. When lowering the vehicle, the 
front will move down first and then the rear.
After the engine is turned off, it may be noticed that 
the air suspension system operates briefly; this is 
normal. The system is correcting the position of the 
vehicle to ensure a proper appearance. To assist with changing a spare tire, the air 
suspension system has a feature which allows the 
automatic leveling to be disabled  Ú
page 234.
NOTE:Default Ride Height:
Select Aero Height or Normal Ride Height as the 
default for all vehicle speeds and operation. 
This is the selected height that the suspension 
will level for speed changes (e.g. raising from 
Entry/Exit Height at speed, lowering from Off 
Road Height at speed, etc.).
Default ride height can be changed by manually 
adjusting the Air Suspension switch to Normal 
Ride Height or Aero Ride Height and staying in 
the selected height for 2.5 seconds. It will be 
stored as the default ride height and the height 
will be maintained until a new default ride 
height is selected.
If equipped with a touchscreen radio, all enabling/
disabling of air suspension features must be done 
through the radio  Ú page 234.
CAUTION!
When in ENTRY/EXIT Height, be aware of your 
surroundings, you may not have the clearance 
required for certain areas and vehicle damage 
may occur.
WARNING!
The air suspension system uses a high pressure 
volume of air to operate the system. To avoid 
personal injury or damage to the system, see an 
authorized dealer for service.
22_DT_OM_EN_USC_t.book  Page 170   

STARTING AND OPERATING175
The transmission is not in DRIVE
Hood is open
Transfer case is in 4WD LOW
TOW/HAUL mode is selected
Accelerator pedal input
Excessive 12 Volt loads
Brake application is adequate to obtain and 
maintain a stop
It may be possible to operate the vehicle several 
consecutive times in extreme conditions and not 
meet all criteria to enable an Autostop state.
TO START THE ENGINE WHILE IN 
A
UTOSTOP MODE
While in DRIVE, the engine will start when the 
brake pedal is released or the throttle pedal is 
pressed and the transmission will automatically 
reengage upon engine restart.
Conditions That Will Cause The Engine To Start 
Automatically While In Autostop Mode
The engine will start automatically when:
The transmission selector is moved from DRIVE 
to REVERSE, NEUTRAL, or PARK
To maintain cabin temperature near the HVAC 
settings
HVAC is set to full defrost mode
12 Volt demand requires engine restart
Stop/Start OFF switch is pushed
Transfer case is in 4WD LOW
The emissions system override is present
A Stop/Start system error is present
Conditions That Force An Automatic Shift To Park 
While In Autostop Mode
The engine will not start automatically and the 
transmission will be placed in PARK if:
The driver door is open and brake pedal 
released
The driver door is open and the driver seat belt 
is unbuckled
The engine hood has been opened
A Stop/Start system error is present
The engine may then be restarted by moving the 
transmission shift selector out of PARK (e.g., to 
DRIVE) or, in some cases, only by a key start. The 
instrument cluster will display a “SHIFT OUT OF 
PARK” message, or a “STOP/START KEY START 
REQUIRED” message, to indicate which action is 
required  Ú page 114.
TO MANUALLY TURN OFF THE STOP/
S
TART SYSTEM
Stop/Start OFF Switch
Push the Stop/Start OFF switch (located on the 
switch bank). The light on the switch will illuminate. 
The “STOP/START OFF” message will appear in the 
instrument cluster display and the Autostop mode 
will be disabled  Ú page 114.
NOTE:The Stop/Start system will reset itself back to the 
ON position every time the ignition is turned OFF 
and back ON.
TO MANUALLY TURN ON THE STOP/
S
TART SYSTEM
Push the Stop/Start OFF switch (located on the 
switch bank). The light on the switch will turn off.
4
22_DT_OM_EN_USC_t.book  Page 175