2015 Ram 2500 check engine light

System Information
After pressing the “System Information” button on the
touchscreen the following information will be available:
•System Information
When System Information is selected, a System Information
screen will appear displaying the system software version.
Customer Programmable Features — Uconnect®
8.4A/8.4AN Personal Settings
Press the “Settings” button on the touchscreen (if
equipped) or press the “Apps” button on the touchscreen
then press the “Settings” button on the touchscreen to
display the settings menu screen. In this mode the
Uconnect® system allows you to access programmable
features that may be equipped such as Display, Voice,
Clock, Safety & Driving Assistance, Lights, Doors &
Locks, Auto-On Comfort (if equipped), Engine Off Op-
tions, Suspension, Trailer Brake, Audio, Phone/ Bluetooth®, SiriusXM Setup (if equipped), Restore Set-
tings, Clear Personal Data and System Information.
NOTE:
Only one category may be selected at a time.
When making a selection, press the button on the touch-
screen to enter the desired mode. Once in the desired
mode, press and release the preferred setting until a
check-mark appears next to the setting, showing that
setting has been selected. Once the setting is complete,
either press the back arrow button on the touchscreen or
the Back button on the faceplate to return to the previous
menu or press the “X” button on the touchscreen to close
out of the settings screen. Pressing the Up or Down
Arrow buttons on the touchscreen on the right side of the
screen will allow you to toggle up or down through the
list of available settings.
NOTE: All settings should be changed with the ignition
in the “Run” position.
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•Engine Off Power Delay
When this feature is selected, the power window
switches, radio, Uconnect® phone system (if equipped),
DVD video system (if equipped), power sunroof (if
equipped), and power outlets will remain active for up to
10 minutes after the ignition is cycled to OFF. Opening
either front door will cancel this feature. To change the
Engine Off Power Delay status press the “+” or “–”
buttons on the touchscreen to adjust the time delay up or
down. Press the back arrow button on the touchscreen to
return to the previous menu.
• Headlight Off Delay
When this feature is selected, the driver can choose to
have the headlights remain on for 0, 30, 60, or 90 seconds
when exiting the vehicle. To make your selection press
the “+” or “–” buttons on the touchscreen to adjust the
seconds up or down. Press the back arrow button on the
touchscreen to return to the previous menuAir Suspension — If Equipped
After pressing the “Suspension” button on the touch-
screen the following settings will be available.
• Sound Horn With Lower
When this feature is selected, a short horn sound will
occur when the RKE transmitter REMOTE LOWER but-
ton is pressed. Press the box next to your selection and a
check-mark appears next to the feature showing the
system has been activated or the check-mark is removed
showing the system has been deactivated.
• Flash Lights With Lower
When this feature is selected, the front and rear turn
signals will flash when the RKE transmitter REMOTE
LOWER button is pressed twice. This feature may be
selected with or without the Sound Horn on Lower
feature selected. Press the box next to your selection and
a check-mark appears next to the feature showing the
384 UNDERSTANDING YOUR INSTRUMENT PANEL

3. At the next vehicle stop (after turning off the STOP/START system) the engine will not be stopped.
4. If the STOP/START system is manually turned off, the engine can only be started and stopped by cycling the
ignition switch.
5. The STOP/START system will reset itself back to an ON condition every time the key is turned off and
back on.
To Manually Turn On The Stop Start System
1. Press the STOP/START Off switch (located on theswitch bank).
2. The light on the switch will turn off.
System Malfunction
If there is a malfunction in the STOP/START system, the
system will not shut down the engine. A SERVICE
STOP/START SYSTEM message will appear in the Elec-
tronic Vehicle Information Center (EVIC)/Driver Infor-
mation Display (DID). Refer to “Electronic Vehicle Infor-
mation Center (EVIC) or Driver Information Display
(DID)” in “Understanding Your Instrument Panel” for
further information.
The system will need to be checked by your authorized
dealer.
ENGINE BLOCK HEATER — IF EQUIPPED
The engine block heater warms the engine, and permits
quicker starts in cold weather. Connect the cord to a
standard 110-115 Volt AC electrical outlet with a
grounded, three-wire extension cord.
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your vehicle’s abilities and be able to recover it if
something goes wrong. You should never stop or shut a
vehicle off when crossing deep water unless you ingested
water into the engine air intake. If the engine stalls do not
attempt to restart it. Determine if it has ingested water
first. The key to any crossing is low and slow. You want
to use first gear in 4L (Low Range) and proceed very
slowly with a constant slow speed (3-5 mph [5–8 km/h]
maximum) and light throttle. Keep the vehicle moving;
do not try to accelerate through the crossing. After
crossing any water higher than the bottom of the axle
differentials, you should inspect all of the vehicle fluids
for signs of water ingestion.CAUTION!
Water ingestion into the axles, transmission, transfer
case, engine or vehicle interior can occur if you drive
too fast or through too deep of water. Water can cause
permanent damage to engine, driveline or other
vehicle components and your brakes will be less
effective once wet and/or muddy.
• Before You Cross Any Type Of Water – As you
approach any type of water you need to determine if
you can cross it safely and responsibly. If necessary, get
out and walk through the water or probe it with a
stick. You need to be sure of its depth, approach angle,
current and bottom condition. Be careful of murky or
muddy waters, check for hidden obstacles. Make sure
you will not be intruding on any wildlife and you can
recover the vehicle if necessary. The key to a safe
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•If you experience unusual vibration after driving in
mud, slush or similar conditions, check the wheels for
impacted material. Impacted material can cause a
wheel imbalance and freeing the wheels of it will
correct the situation.
LIMITED-SLIP DIFFERENTIAL
The limited-slip differential provides additional traction
on snow, ice, mud, sand and gravel, particularly when
there is a difference between the traction characteristics
of the surface under the right and left rear wheels. During
normal driving and cornering, the limited-slip unit per-
forms similarly to a conventional differential. On slip-
pery surfaces, however, the differential delivers more of
the driving effort to the rear wheel having the better
traction.
The limited-slip differential is especially helpful during
slippery driving conditions. With both rear wheels on a
slippery surface, a slight application of the accelerator will supply maximum traction. When starting with only
one rear wheel on an excessively slippery surface, slight
momentary application of the parking brake may be
necessary to gain maximum traction.
WARNING!
On vehicles equipped with a limited-slip differential
never run the engine with one rear wheel off the
ground since the vehicle may drive through the rear
wheel remaining on the ground. You could lose
control of the vehicle.
Care should be taken to avoid sudden accelerations when
both rear wheels are on a slippery surface. This could
cause both rear wheels to spin, and allow the vehicle to
slide sideways on the crowned surface of a road or in a
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WARNING!(Continued)
distances. Therefore, after driving through stand-
ing water, drive slowly and lightly press on the
brake pedal several times to dry the brakes.
• Failure to follow these warnings may result in
injuries that are serious or fatal to you, your pas-
sengers, and others around you.
CAUTION!
• Always check the depth of the standing water
before driving through it. Never drive through
standing water that is deeper than the bottom of
the tire rims mounted on the vehicle.
• Determine the condition of the road or the path
that is under water and if there are any obstacles in
the way before driving through the standing water.
(Continued)
CAUTION! (Continued)
•Do not exceed 5 mph (8 km/h) when driving
through standing water. This will minimize wave
effects.
• Driving through standing water may cause damage
to your vehicle’s drivetrain components. Always
inspect your vehicle’s fluids (i.e., engine oil, trans-
mission, axle, etc.) for signs of contamination (i.e.,
fluid that is milky or foamy in appearance) after
driving through standing water. Do not continue to
operate the vehicle if any fluid appears contami-
nated, as this may result in further damage. Such
damage is not covered by the New Vehicle Limited
Warranty.
• Getting water inside your vehicle’s engine can
cause it to lock up and stall out, and cause serious
internal damage to the engine. Such damage is not
covered by the New Vehicle Limited Warranty.
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CAUTION!
Do not use chemical flushes in your power steering
system as the chemicals can damage your power
steering components. Such damage is not covered by
the New Vehicle Limited Warranty.
WARNING!
Fluid level should be checked on a level surface and
with the engine off to prevent injury from moving
parts and to ensure accurate fluid level reading. Do
not overfill. Use only manufacturer’s recommended
power steering fluid.
If necessary, add fluid to restore to the proper indicated
level. With a clean cloth, wipe any spilled fluid from all
surfaces. Refer to “Fluids, Lubricants, And Genuine
Parts” in “Maintaining Your Vehicle” for further informa-
tion.
FUEL SAVER TECHNOLOGY 5.7L/6.4L ENGINES
ONLY — IF EQUIPPED
This feature offers improved fuel economy by shutting
off four of the engine’s eight cylinders during light load
and cruise conditions. The system is automatic with no
driver inputs or additional driving skills required.
NOTE: This system may take some time to return to full
functionality after a battery disconnect.
PARKING BRAKE
Before leaving the vehicle, make sure that the parking
brake is fully applied. Also, be certain to leave the
transmission in PARK.
The foot operated parking brake is located below the
lower left corner of the instrument panel. To apply the
park brake, firmly push the park brake pedal fully. To
release the parking brake, pull the parking brake release
handle.
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8. Start the engine.
9. Press and hold the brake pedal.
10. Release the parking brake.
11. Shift the transmission into gear, release the brakepedal (and clutch pedal on manual transmissions),
and check that the vehicle operates normally.
NOTE: With electronic shift transfer case:
• Steps 3 and 4 are requirements that must be met before
pressing the button to shift out of NEUTRAL (N), and
must continue to be met until the shift has been
completed. If any of these requirements are not met
before pressing the button or are no longer met during
the shift, the NEUTRAL (N) indicator light will flash
continuously until all requirements are met or until the
button is released. •
The ignition switch must be in the ON/RUN position
for a shift to take place and for the position indicator
lights to be operable. If the ignition switch is not in the
ON/RUN position, the shift will not take place and no
position indicator lights will be on or flashing.
• A flashing NEUTRAL (N) position indicator light
indicates that shift requirements have not been met.
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