2016 Ram 2500 air condition

engine coolant (antifreeze) in open containers or allow it
to remain in puddles on the ground. If ingested by a child
or pet, seek emergency assistance immediately. Clean up
any ground spills immediately.
Points To Remember
NOTE:When the vehicle is stopped after a few miles/
kilometers of operation, you may observe vapor coming
from the front of the engine compartment. This is nor-
mally a result of moisture from rain, snow, or high
humidity accumulating on the radiator and being vapor-
ized when the thermostat opens, allowing hot engine
coolant (antifreeze) to enter the radiator.
If an examination of your engine compartment shows no
evidence of radiator or hose leaks, the vehicle may be
safely driven. The vapor will soon dissipate.
• Do not overfill the coolant expansion bottle. •
Check the coolant freeze point in the radiator and in
the coolant expansion bottle. If engine coolant (anti-
freeze) needs to be added, the contents of the coolant
expansion bottle must also be protected against freez-
ing.
• If frequent engine coolant (antifreeze) additions are
required, the cooling system should be pressure tested
for leaks.
• Maintain engine coolant (antifreeze) concentration at a
minimum of 50% OAT coolant (conforming to
MS.90032) and distilled water for proper corrosion
protection of your engine which contains aluminum
components.
• Make sure that the coolant expansion bottle overflow
hoses are not kinked or obstructed.
• Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean.
5
MAINTAINING YOUR VEHICLE 143

•Do not change the thermostat for Summer or Winter
operation. If replacement is ever necessary, install
ONLY the correct type thermostat. Other designs may
result in unsatisfactory engine coolant (antifreeze)
performance, poor gas mileage, and increased emis-
sions.
Charge Air Cooler — Inter-Cooler
The charge air cooler is positioned in front of the radiator
and the air conditioner condenser. Air enters the engine
through the air cleaner and passes through the turbo-
charger, where it is pressurized. This pressurized air
rapidly reaches high temperature. The air is then directed
through a hose to the charge air cooler and through
another hose to the intake manifold of the engine. This
cooling process enables more efficient burning of fuel
resulting in fewer emissions. To guarantee optimum performance of the system, keep
the surfaces of the charge air cooler, condenser and
radiator clean and free of debris. Periodically check the
hoses leading to and from the charge air cooler for cracks
or loose clamps resulting in loss of pressure and reduced
engine performance.
Brake System
Brake Master Cylinder — Brake Fluid Level Check
The fluid level of the master cylinder should be checked
when performing under the hood service, or immedi-
ately if the “Brake System Warning Light” indicates
system failure.
The brake master cylinder has a translucent plastic
reservoir. On the outboard side of the reservoir, there is a
“MAX” mark and a “MIN” mark. The fluid level must be
kept within these two marks. Do not add fluid above the
full mark because leakage may occur at the cap.
144 MAINTAINING YOUR VEHICLE

Required Maintenance
Refer to the Maintenance Schedules on the following
pages for required maintenance.At Every Oil Change Interval As Indicated By OilChange Indicator System:
•Change oil and filter.
• Completely fill the Diesel Exhaust Fluid tank.
• Drain water from fuel filter assembly.
• Rotate the tires. Rotate at the first sign of irregu-
lar wear, even if it occurs before the oil indicator
system turns on.
• Inspect battery and clean and tighten terminals as
required.
• Inspect brake pads, shoes, rotors, drums, hoses
and park brake.
• Inspect engine cooling system protection and
hoses.
• Inspect exhaust system.
• Inspect engine air cleaner if using in dusty or
off-road conditions.
6
MAINTENANCE SCHEDULE 153

REMOTE STARTING SYSTEM — IF EQUIPPED
This system uses the Remote Keyless Entry
(RKE) transmitter to start the engine conve-
niently from outside the vehicle while still
maintaining security. The system has a range of
approximately 300 ft (91 m).
NOTE:
• The vehicle must be equipped with an automatic
transmission to be equipped with Remote Start.
• The Remote Start system will wait for the “Wait To
Start” telltale to extinguish before cranking the engine.
This allows time for the intake heater to pre-heat the
incoming air, and is normal operation in cold weather.
Refer to “Wait To Start” in “Understanding Your
Instrument Panel”.
How To Use Remote Start
All of the following conditions must be met before the
engine will remote start:
• Transmission in PARK
• Doors closed
• Hood closed
• HAZARD switch off
• BRAKE switch inactive (brake pedal not pushed)
• Ignition key removed from ignition switch
• Battery at an acceptable charge level
• RKE PANIC button not pushed
170 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

1. Tachometer•Indicates the engine speed in revolutions per minute
(RPM x 1000).
2. Engine Coolant Temperature •This gauge shows the engine coolant temperature.
The gauge pointer will likely show higher tempera-
tures when driving in hot weather, up mountain
grades, or in heavy stop and go traffic. If the red
Warning Light turns on while driving, safely bring
the vehicle to a stop, and turn off the engine. DO
NOT operate the vehicle until the cause is corrected.
CAUTION!
Driving with a hot engine cooling system could
damage your vehicle. If the temperature gauge reads
“H” pull over and stop the vehicle. Idle the vehicle
with the air conditioner turned off until the pointer
(Continued)
CAUTION! (Continued)
drops back into the normal range. If the pointer
remains on the “H”, turn the engine off immediately
and call an authorized dealer for service.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call an authorized dealer
for service if your vehicle overheats. If you decide to
look under the hood yourself, see “Maintaining Your
Vehicle.” Follow the warnings under the “Cooling
System Pressure Cap” paragraph.4
UNDERSTANDING YOUR INSTRUMENT PANEL 187

Tire Pressure Monitoring Indicator Light
Yellow TelltaleLight What It Means
Tire Pressure Monitoring Indicator 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 mentioned above, the display will show the
indications corresponding to each tire in sequence.
In any situation in which the message on the display is
See manual, it is ESSENTIAL to
refer to the contents of the Wheelsparagraph in the Technical datachapter, strictly com-
plying with the indications that you find there.
IMPORTANT: Do not continue driving with one or more
flat tires as handling may be compromised. Stop the
vehicle, avoiding sharp braking and steering. Repair
immediately using the dedicated tire repair kit and
contact your authorized dealership as soon as possible. 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
206 UNDERSTANDING YOUR INSTRUMENT PANEL

ELECTRONIC VEHICLE INFORMATION CENTER
(EVIC)
The Electronic Vehicle Information Center (EVIC) fea-
tures a driver-interactive display that is located in the
instrument cluster.This system conveniently allows the driver to select a
variety of useful information by pressing the switches
mounted on the steering wheel.
Refer to “Electronic Vehicle Information Center – If
Equipped” in the Owner’s Manual for further informa-
tion.
Instrument Cluster Messages
When the appropriate conditions exist, the Instrument
Cluster Displays the following messages:
•
System Setup Unavailable – Vehicle Not in Park
• System Setup Unavailable – Vehicle in Motion
• Service Air Filter
• Perform Service
• Exhaust Filter XX% Full Safely Drive at Highway
Speeds To Remedy — If Equipped
Electronic Vehicle Information Center (EVIC)
228 UNDERSTANDING YOUR INSTRUMENT PANEL

•Incorrect DEF Detected See Dealer — This message
will display when the fault is initially detected, each
time the vehicle is started, and periodically during
driving. The message will be accompanied by a single
chime. We recommend you drive to your nearest
authorized dealer and have your vehicle serviced as
soon as possible.
NOTE: When this message is displayed, the engine can
still be started. However, the vehicle will only operate at
a maximum speed of 5 MPH.
RAM Active Air System
Your vehicle is equipped with an advanced Ram Active
Air system that provides enhanced performance, espe-
cially when towing under demanding hot or high alti-
tude conditions. If the EVIC/DID displays the message
“Active Airbox Service Required See Dealer”, vehicle
performance may be reduced until service is performed
by an authorized RAM dealer.
Fuel Filter Life Reset
The cluster will display the “Service Fuel Filter” message
when the fuel filter maintenance life is less than 5%. To
check the remaining fuel filter life, go to the “Fuel Filter
Life” screen in the “Vehicle Info” menu. When this
message appears, dealers should replace both frame
mounted and engine mounted fuel filters.
NOTE: Use the steering wheel EVIC controls for the
following procedure(s)
Vehicles Equipped With Passive Entry
1. Without pressing the brake pedal, press the ENGINE START/STOP button and cycle the ignition to the
ON/RUN position (do not start the engine.)
2. Press and release the DOWNarrow button to scroll
downward through the main menu to “Vehicle Info”.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 239