2020 Ram 1500 height

STARTING AND OPERATING 327
NOTE:
Automatic Aero Mode may be disabled through vehicle
settings on your Uconnect Radio.
•Entry/Exit Mode (Lowers the vehicle approximately
3 inches (73 mm)) – This position lowers the vehicle for
easier passenger entry and exit as well as lowering the
rear of 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
cancelled. 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
mode may not be available due to vehicle payload, an
instrument cluster display message will be shown when
this occurs.
Refer to “Instrument Cluster Display” in “Getting To
Know Your Instrument Panel” for further information. 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.CAUTION!
When in ENTRY/EXIT setting, be aware of your
surroundings, you may not have the clearance required
for certain areas and vehicle damage may occur.
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328 STARTING AND OPERATING

To assist with changing a spare tire, the air suspension system
has a feature which allows the automatic leveling to be disabled.
Refer to “Instrument Cluster Display” in “Getting To Know
Your Instrument Panel” for further information.

NOTE:
If equipped with a touch screen radio all enabling/disabling
of air suspension features must be done through the radio.
Refer to “Uconnect Settings” in “Multimedia” for further
information.
Air Suspension Modes
The Air Suspension system has multiple modes to protect the
system in unique situations:
AERO Mode
To improve aerodynamics, the air suspension system has a
feature which will put the vehicle into AERO height auto-
matically. Refer to “Instrument Cluster Display” in “Getting
To Know Your Instrument Panel” for further information. NOTE:
This mode is intended to be enabled with engine running.
Tire Jack Mode
To assist with changing a tire, the air suspension system has
a feature which allows the automatic leveling to be disabled.
Refer to “Instrument Cluster Display” in “Getting To Know
Your Instrument Panel” or “Uconnect Settings” in “Multi
-
media” if equipped with a touch screen radio for further
information.
NOTE:
This mode is intended to be enabled with engine running.
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. Refer to “Instrument Cluster Display” in
“Getting To Know Your Instrument Panel” or “Uconnect
Settings” in “Multimedia” if equipped with a touch screen
radio for further information.
NOTE:
This mode is intended to be enabled with engine running.
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 your authorized dealer for
service.
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STARTING AND OPERATING 329
Wheel Alignment Mode
Before performing a wheel alignment, this mode must be
enabled. Refer to “Instrument Cluster Display” in “Getting
To Know Your Instrument Panel” or “Uconnect Settings” in
“Multimedia” if equipped with a touch screen radio for
further information.
NOTE:
This mode is intended to be enabled with engine running.
Protection Strategy
In order to “protect” the air suspension system, the vehicle
will disable load leveling as required (suspension over-
loaded, battery charge low, etc.). Load leveling will automat -
ically resume as soon as system operation requirements are
met. See your authorized dealer if system does not resume.
NOTE:
If towing with air suspension refer to “Trailer Towing” in
“Starting And Operating” for further information.
Instrument Cluster Display Messages
When the appropriate conditions exist, a message will
appear in the instrument cluster display. Refer to “Instru-
ment Cluster Display” in “Getting To Know Your Instru-
ment Panel” for further information. An audible chime will be heard whenever a system error has
been detected.
See an authorized dealer for system service if normal opera
-
tion does not resume.
Operation
Air Suspension Switch
1 — Off-Road Indicator (Customer selectable)
2 — Normal Ride Height Indicator (Customer selectable)
3 — Aero Mode Indicator (Customer Selectable)
4 — Entry/Exit Mode Indicator (Customer selectable)
5 — Height Selector
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330 STARTING AND OPERATING
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 posi-
tion, 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 posi -
tion, 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 posi -
tion 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 when the vehicle is in OR1.
• Normal Ride Height (NRH) – Indicator lamps 4, 3, and 2 will be illuminated when the vehicle is in this position.
• Aero Mode – Indicator lamps 4 and 3 will be illuminated when the vehicle is in this position.
• Entry/Exit Mode – Indicator lamp 4 will be illuminated when the vehicle is in Entry Exit Mode. Entry/Exit mode
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 Mode is achieved at which point indicator
lamp 3 will turn off.
• Transport Mode – No indicator lamps will be illuminated. Transport Mode is disabled by driving the vehicle.
• Tire/Jack Mode – Indicator lamps 4 and 1 will be illumi -
nated. Tire/Jack Mode is disabled by driving the vehicle.
• Wheel Alignment Mode – Indicator lamps 2, 3, and 4 will be illuminated. Wheel Alignment Mode is disabled by
driving the vehicle.
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STARTING AND OPERATING 355
able. If this occurs, try activating ACC again later, following
an ignition cycle. If the problem persists, see your authorized
dealer.
Precautions While Driving With ACC
In certain driving situations, ACC may have detection issues.
In these cases, ACC may brake late or unexpectedly. The
driver needs to stay alert and may need to intervene.
NOTE:
• Aftermarket add-ons such as snow plows, lift kits, andbrush/grille bars can hinder module performance. Ensure
the radar/camera has no obstructions in the field of view.
• Height modifications can limit module performance and functionality.
• Do not put stickers or easy passes over the camera/radar field of view.
• Any modifications to the vehicle that may obstruct the field of view of the radar/camera are not recommended.
Cleaning Instructions
Dust and dirt can accumulate on the cover and block the
camera lens. Clean the camera lens with a soft microfiber
cloth, being careful not to damage or scratch the module. Towing A Trailer
ACC while towing a trailer is recommended only with an
Integrated Trailer Brake Controller. Aftermarket trailer
brake controllers will not activate the trailer brakes when
ACC is braking.
Offset Driving
ACC may not detect a vehicle in the same lane that is offset
from your direct line of travel, or a vehicle merging in from
a side lane. There may not be sufficient distance to the
vehicle ahead. The offset vehicle may move in and out of the
line of travel, which can cause your vehicle to brake or accel
-
erate unexpectedly.
Offset Driving Condition Example
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408 STARTING AND OPERATING
Gross Combination Weight Rating (GCWR)
The Gross Combination Weight Rating (GCWR) is the total
allowable weight of your vehicle and trailer when weighed
in combination.
Gross Axle Weight Rating (GAWR)
The Gross Axle Weight Rating (GAWR) is the maximum
capacity of the front and rear axles. Distribute the load over
the front and rear axles evenly. Make sure that you do not
exceed either front or rear GAWR. Refer to “Vehicle
Loading/Vehicle Certification Label” in “Starting And
Operating” for further information.Tongue Weight (TW)
The Tongue Weight (TW) is the downward force exerted on
the hitch ball by the trailer. You must consider this as part of
the load on your vehicle.
Trailer Frontal Area
The frontal area is the maximum height multiplied by the
maximum width of the front of a trailer.
Trailer Sway Control
The Trailer Sway Control (TSC) can be a mechanical tele
-
scoping link that can be installed between the hitch receiver
and the trailer tongue that typically provides adjustable fric -
tion associated with the telescoping motion to dampen any
unwanted trailer swaying motions while traveling.
WARNING!
If the gross trailer weight is 5,000 lbs (2,267 kg) or more,
it is recommended to use a weight-distributing hitch to
ensure stable handling of your vehicle. If you use a
standard weight-carrying hitch, you could lose control of
your vehicle and cause a collision.WARNING!
It is important that you do not exceed the maximum front
or rear GAWR. A dangerous driving condition can result
if either rating is exceeded. You could lose control of the
vehicle and have a collision.
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410 STARTING AND OPERATING
With Weight-Distributing Hitch (Correct)
Improper Adjustment Of Weight-Distributing Hitch (Incorrect) Recommended Distribution Hitch Adjustment
Towing With 1500 Air Suspension
1. Set air suspension to normal ride height. No action is
required if already in normal ride height.
NOTE:
The vehicle must remain in the engine run position with all
doors closed while attaching a trailer for proper leveling of
the air suspension system.
2. Position the truck to be ready to connect to the trailer (do not connect the trailer).
3. Under the instrument cluster or touch screen radio settings, enable tire jack mode. Tire jack mode will be
canceled and procedure must be restarted if the vehicle is
driven at speeds above 5mph (8 kmh).
4. Measure the height of the top of the front wheel opening on the fender to ground, this is height H1.
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STARTING AND OPERATING 411
Measuring Height (H)
5. Attach the trailer to the vehicle without the weight distri -
bution bars connected.
6. Measure the height of the top of the front wheel opening on the fender to ground, this is height H2.
7. Install and adjust the tension in the weight distributing bars per the manufacturers’ recommendations so that the
height of the front fender is approximately (H2-H1)/
3+H1 (about 1/3 the difference between H2 and H1 above
normal ride height [H1]). 8. Use the instrument cluster or touch screen radio settings
and switch off tire jack mode. Make sure the truck returns
to normal ride height. Preform a visual inspection of the
trailer and weight distributing hitch to confirm manufac -
turers’ recommendations have been met.
9. The truck can now be driven.
NOTE:
For all towing conditions, we recommend towing with tow
haul mode engaged.
Trailer Hitch Type and Maximum Trailer Weight
The following chart provides the maximum trailer weight a
given factory equipped trailer hitch type can tow and should
be used to assist you in selecting the correct trailer hitch for
your intended towing condition.
Measurement Example Example 1500 Height (mm) H1 925
H2 946
H2-H1 21
(H2-H1)/3 7
(H2-H1)/3 + H1 932
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