2015 Ram 1500 Cooling

Exhaust Gas
WARNING!
Exhaust gases can injure or kill. They contain carbon
monoxide (CO), which is colorless and odorless.
Breathing it can make you unconscious and can
eventually poison you. To avoid breathing (CO),
follow these safety tips:
•Do not run the engine in a closed garage or in
confined areas any longer than needed to move
your vehicle in or out of the area.
•If you are required to drive with the trunk/liftgate/
rear doors open, make sure that all windows are
closed and the climate control BLOWER switch is
set at high speed. DO NOT use the recirculation
mode.
(Continued)
WARNING!(Continued)
•If it is necessary to sit in a parked vehicle with the
engine running, adjust your heating or cooling
controls to force outside air into the vehicle. Set the
blower at high speed.
The best protection against carbon monoxide entry into
the vehicle body is a properly maintained engine exhaust
system.
Whenever a change is noticed in the sound of the exhaust
system, when exhaust fumes can be detected inside the
vehicle, or when the underside or rear of the vehicle is
damaged, have a competent mechanic inspect the com-
plete exhaust system and adjacent body areas for broken,
damaged, deteriorated, or mispositioned parts. Open
seams or loose connections could permit exhaust fumes
to seep into the passenger compartment. In addition,
inspect the exhaust system each time the vehicle is raised
for lubrication or oil change. Replace as required.
2
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 115

NOTE:
•The “ESC Off Indicator Light” and the “ESC
Activation/Malfunction Indicator Light” come on
momentarily each time the ignition switch is turned
to ON/RUN.
•Each time the ignition is turned to ON/RUN, the
ESC system will be ON, even if it was turned off
previously.
•The ESC system will make buzzing or clicking
sounds when it is active. This is normal; the sounds
will stop when ESC becomes inactive following the
maneuver that caused the ESC activation.
24. Temperature Gauge
The temperature gauge shows engine coolant tempera-
ture. Any reading within the normal range indicates that
the engine cooling system is operating satisfactorily.
The gauge pointer will likely indicate a higher tempera-
ture when driving in hot weather, up mountain grades,
or when towing a trailer. It should not be allowed to
exceed the upper limits of the normal operating range.
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
drops back into the normal range. If the pointer
remains on the “H” and you hear continuous chimes,
turn the engine off immediately and call an autho-
rized dealer for service.
298 UNDERSTANDING YOUR INSTRUMENT PANEL

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.
25. Stop/Start – If Equipped
Press and release the UP or DOWN arrow
button until the Stop/Start icon is highlighted
in the EVIC. Press and release the RIGHT
arrow button to display the Stop/Start status.
26.Electric Power Steering Malfunction Warning Light —
If Equipped
This telltale is on when the Electric Power
Steering is not operating and needs service.
27. Electronic Throttle Control (ETC) Light
This light informs you of a problem with the
Electronic Throttle Control (ETC) system. The
light will come on when the ignition is first
turned ON and remain on briefly as a bulb
check. If the light does not come on during starting, have
the system checked by an authorized dealer.
If a problem is detected, the light will come on while the
engine is running. Cycle the ignition key when the
vehicle has completely stopped and the shift lever is
placed in the PARK position. The light should turn off.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 299

•Automatic Unavailable Use Autostick Service Req.
•Transmission Getting Hot Press Brake
•Trans. Hot Stop Safely Shift to Park Wait to Cool
•Transmission Cool Ready to Drive
•Trailer Brake Disconnected
•Service Transmission
•Service Shifter
•Engage Park Brake to Prevent Rolling
•Transmission Too cold Idle with Engine On
•Washer Fluid Low
•Service Air Suspension System
•Heavy Duty Air Suspension System Disable
•Normal Ride Height Achieved
•Aerodynamic Ride Height Achieved
•Off Road 1 Ride Height Achieved
•Off Road 2 Ride Height Achieved
•Entry/Exit Ride Height Achieved
•Selected Ride Height Not Permitted
•Service Air Suspension System Immediately
•Reduce Speed To Maintain Selected Ride Height
•Air Suspension System Cooling Down Please Wait
•Vehicle Cannot Be Lowered Door Open
•Off Road 2 Watch For Clearance
•Entry/Exit Watch For Clearance
•Air Suspension Temporarily Disabled For Jacking And
Tire Change
310 UNDERSTANDING YOUR INSTRUMENT PANEL

•Battery Low Start Engine To Change Ride Height
•Stop/Start Ready – If Equipped
•Stop/Start Not Ready – If Equipped
•Stop/Start Not Ready Hood Open – If Equipped
•Stop/Start Not Ready Battery Charging – If Equipped
•Stop/Start Not Ready Trailer Tow/Haul Selected – If
Equipped
•Stop/Start Not Ready 4WD/Low Range Selected – If
Equipped
•Stop/Start Not Ready Fuel Level Low – If Equipped
•Stop/Start Not Ready Steep Incline – If Equipped
•Stop/Start Not Ready Extreme Outside Temperature –
If Equipped
•Stop/Start Not Ready Engine Temperature Too High –
If Equipped
•Stop/Start Not Ready Engine Temperature Too Low –
If Equipped
•Stop/Start Not Ready Driver Seatbelt Unbuckled – If
Equipped
•Stop/Start Not Ready Driver Door Open – If Equipped
•Stop/Start Not Ready Cabin Cooling Or Heating – If
Equipped
•Stop/Start Not Ready Not Ready Max Cooling Or
Heating – If Equipped
•Stop/Start Not Ready Max Cooling Or Heating Se-
lected – If Equipped
•Stop/Start Not Ready Front Defrost Selected – If
Equipped
4
UNDERSTANDING YOUR INSTRUMENT PANEL 311

•Transmission Too cold Idle with Engine On
•Washer Fluid Low
•Service Air Suspension System
•Heavy Duty Air Suspension System Disable
•Normal Ride Height Achieved
•Aerodynamic Ride Height Achieved
•Off Road 1 Ride Height Achieved
•Off Road 2 Ride Height Achieved
•Entry/Exit Ride Height Achieved
•Selected Ride Height Not Permitted
•Service Air Suspension System Immediately
•Reduce Speed To Maintain Selected Ride Height
•Air Suspension System Cooling Down Please Wait
•Vehicle Cannot Be Lowered Door Open
•Off Road 2 Watch For Clearance
•Entry/Exit Watch For Clearance
•Air Suspension Temporarily Disabled For Jacking And
Tire Change
•Battery Low Start Engine To Change Ride Height
•Stop/Start Ready – If Equipped
•Stop/Start Not Ready – If Equipped
•Stop/Start Not Ready Hood Open – If Equipped
•Stop/Start Not Ready Battery Charging – If Equipped
•Stop/Start Not Ready Trailer Tow/Haul Selected – If
Equipped
•Stop/Start Not Ready 4WD/Low Range Selected – If
Equipped
322 UNDERSTANDING YOUR INSTRUMENT PANEL

•Stop/Start Not Ready Fuel Level Low – If Equipped
•Stop/Start Not Ready Steep Incline – If Equipped
•Stop/Start Not Ready Extreme Outside Temperature –
If Equipped
•Stop/Start Not Ready Engine Temperature Too High –
If Equipped
•Stop/Start Not Ready Engine Temperature Too Low –
If Equipped
•Stop/Start Not Ready Driver Seatbelt Unbuckled – If
Equipped
•Stop/Start Not Ready Driver Door Open – If Equipped
•Stop/Start Not Ready Cabin Cooling Or Heating – If
Equipped
•Stop/Start Not Ready Not Ready Max Cooling Or
Heating – If Equipped
•Stop/Start Not Ready Max Cooling Or Heating Se-
lected – If Equipped
•Stop/Start Not Ready Front Defrost Selected – If
Equipped
•Stop/Start Not Ready Steering Wheel Turned – If
Equipped
•Stop/Start Autostop Active – If Equipped
•Stop/Start To Restart Press Clutch Or Shift To Neutral
– If Equipped
•Stop/Start Req’d Fault Detected – If Equipped
•Stop/Start Cannot Autostart Hood Open – If
Equipped
•Stop/Start Unavailable Service Battery – If Equipped
•Stop/Start Unavailable Service Stop/Start System – If
Equipped
4
UNDERSTANDING YOUR INSTRUMENT PANEL 323

•Transmission Getting Hot Press Brake
•Trans. Hot Stop Safely Shift to Park Wait to Cool
•Transmission Cool Ready to Drive
•Trailer Brake Disconnected
•Service Transmission
•Service Shifter
•Engage Park Brake to Prevent Rolling
•Transmission Too cold Idle with Engine On
•Washer Fluid Low
•Service Air Suspension System
•Normal Ride Height Achieved
•Aerodynamic Ride Height Achieved
•Off Road 1 Ride Height Achieved
•Off Road 2 Ride Height Achieved
•Entry/Exit Ride Height Achieved
•Selected Ride Height Not Permitted
•Service Air Suspension System Immediately
•Reduce Speed To Maintain Selected Ride Height
•Air Suspension System Cooling Down Please Wait
•Vehicle Cannot Be Lowered Door Open
•Off Road 2 Watch For Clearance
•Entry/Exit Watch For Clearance
•Air Suspension Temporarily Disabled For Jacking And
Tire Change
•Battery Low Start Engine To Change Ride Height
•Stop/Start Ready – If Equipped
4
UNDERSTANDING YOUR INSTRUMENT PANEL 339