2018 Ram 4500 Chassis Cab heating

WARNING!
Fast spinning tires can be dangerous. Forces generated
by excessive wheel speeds may cause damage, or even
failure, of the axle and tires. A tire could explode and
injure someone. Do not spin your vehicle’s wheels
faster than 30 mph (48 km/h) or for longer than 30
seconds continuously without stopping when you are
stuck and do not let anyone near a spinning wheel, no
matter what the speed.
CAUTION!
•Racing the engine or spinning the wheels may lead
to transmission overheating and failure. Allow the
engine to idle with the transmission in NEUTRAL
for at least one minute after every five rocking-
motion cycles. This will minimize overheating and
reduce the risk of clutch or transmission failure
during prolonged efforts to free a stuck vehicle.
• When “rocking” a stuck vehicle by shifting between
DRIVE/SECOND GEAR and REVERSE, do not spin
the wheels faster than 15 mph (24 km/h), or drive-
train damage may result.
(Continued)
CAUTION! (Continued)
•Revving the engine or spinning the wheels too fast
may lead to transmission overheating and failure. It
can also damage the tires. Do not spin the wheels
above 30 mph (48 km/h) while in gear (no transmis-
sion shifting occurring).
7
IN CASE OF EMERGENCY 351

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, refer
to “Safety Tips” in “Safety” for further information.
• A hot exhaust system can start a fire if you park over
materials that can burn. Such materials might be
grass or leaves coming into contact with your exhaust
system. Do not park or operate your vehicle in areas
where your exhaust system can contact anything that
can burn.
CAUTION!
• The catalytic converter requires the use of unleaded
fuel only. Leaded gasoline will destroy the effective-
ness of the catalyst as an emissions control device
and may seriously reduce engine performance and
cause serious damage to the engine.
• Damage to the catalytic converter can result if your
vehicle is not kept in proper operating condition. In
(Continued)
CAUTION! (Continued)
the event of engine malfunction, particularly involv-
ing engine misfire or other apparent loss of perfor-
mance, have your vehicle serviced promptly. Contin-
ued operation of your vehicle with a severe
malfunction could cause the converter to overheat,
resulting in possible damage to the converter and
vehicle.
Under normal operating conditions, the catalytic converter
will not require maintenance. However, it is important to
keep the engine properly tuned to assure proper catalyst
operation and prevent possible catalyst damage.
NOTE: Intentional tampering with emissions control sys-
tems can result in civil penalties being assessed against
you.
In unusual situations involving grossly malfunctioning
engine operation, a scorching odor may suggest severe and
abnormal catalyst overheating. If this occurs, stop the
vehicle, turn off the engine and allow it to cool. Service,
including a tune-up to manufacturer’s specifications,
should be obtained immediately.
8
SERVICING AND MAINTENANCE 383

Tires — General Information
Tire Pressure
Proper tire inflation pressure is essential to the safe and
satisfactory operation of your vehicle. Four primary areas
are affected by improper tire pressure:
•Safety and Vehicle Stability
• Economy
• Tread Wear
• Ride Comfort
Safety
WARNING!
• Improperly inflated tires are dangerous and can
cause collisions.
• Underinflation increases tire flexing and can result
in overheating and tire failure.
• Overinflation reduces a tire’s ability to cushion
shock. Objects on the road and chuckholes can cause
damage that result in tire failure.
(Continued)
WARNING! (Continued)
•Overinflated or underinflated tires can affect vehicle
handling and can fail suddenly, resulting in loss of
vehicle control.
• Unequal tire pressures can cause steering problems.
You could lose control of your vehicle.
• Unequal tire pressures from one side of the vehicle
to the other can cause the vehicle to drift to the right
or left.
• Always drive with each tire inflated to the recom-
mended cold tire inflation pressure.
Both under-inflation and over-inflation affect the stability
of the vehicle and can produce a feeling of sluggish
response or over responsiveness in the steering.
NOTE:
• Unequal tire pressures from side to side may cause
erratic and unpredictable steering response.
• Unequal tire pressure from side to side may cause the
vehicle to drift left or right.
404 SERVICING AND MAINTENANCE

Door Ajar Light........................... .153
Door Locks, Automatic .......................40
Door Opener, Garage ....................... .102
Driver’s Seat Back Tilt ........................43
Driving Through Flowing, Rising, Or Shallow Standing
Water ................................ .317
Dual Rear Wheels ....................343, 417, 427
Electrical Power Outlets ..................... .123
Electronically Shifted Transfer Case ..............260
Electronic Brake Control System ................165
Anti-Lock Brake System ....................164
Electronic Roll Mitigation ...................173
Traction Control System ....................168
Electronic Range Select (ERS)..................254
Electronic Speed Control (Cruise Control) .........270
Electronic Stability Control (ESC) ...............169
Electronic Throttle Control Warning Light .........152
Emergency Brake .......................... .245
Emergency, In Case Of Freeing Vehicle When Stuck .................350
Hazard Warning Flasher ...................320
Jacking ............................... .339
Jump Starting .......................... .345Emission Control System Maintenance
............160
Engine ................................. .364
Air Cleaner ............................ .368
Break-In Recommendations .................244
Compartment Identification .................364
Coolant (Antifreeze) ..................... .435
Exhaust Gas Caution ...................233, 433
Fails To Start ........................... .243
Flooded, Starting ........................ .243
Fuel Requirements ....................... .429
Jump Starting .......................... .345
Oil .............................. .367, 435
Oil Filler Cap ....................... .364, 368
Oil Filter .............................. .368
Oil
Selection ........................... .367
Oil Synthetic ........................... .368
Overheating ........................... .348
Engine Oil Viscosity ........................ .368
Enhanced Accident Response Feature .........206, 355
Entry System, Illuminated .....................78
Ethanol ................................. .431
Exhaust Gas Caution .....................233, 433
Exhaust System ....................... .233, 382
Exterior Lighting ............................69
12
INDEX 515

Occupant Restraints........................ .183
Octane Rating, Gasoline (Fuel) .................429
Oil, Engine ........................... .367, 435
Capacity .............................. .434
Change Interval ........................ .367
Dipstick .............................. .365
Disposal .............................. .368
Filter ............................. .368, 435
Filter Disposal .......................... .368
Identification Logo ...................... .367
Materials Added To ...................... .368
Pressure Warning Light ....................152
Recommendation ........................ .367
Synthetic ............................. .368
Viscosity .............................. .368
Oil Filter, Change ......................... .368
Oil Filter, Selection ......................... .368
Oil Pressure Light ......................... .152
Onboard Diagnostic System ...................159
Operating Precautions ...................... .159
Operator Manual (Owner’s Manual) ...............5
Outside Rearview Mirrors .....................62
Overdrive ............................... .255
Overdrive OFF Switch ...................... .255
Overheating, Engine ....................... .348Owner’s Manual (Operator Manual)
...........5,510
Paint Care ............................... .420
Panic Alarm ...............................22
Parking Brake ............................ .245
ParkSense System, Rear ...................273, 280
Passive Entry ..............................37
Pedals, Adjustable ...........................59
Personalized Menu Bar ..................... .441
Personal Settings .......................... .144
Pets ................................... .233
Placard, Tire And Loading Information ...........400
Power Distribution

Center (Fuses) ..................332
Door Locks ..............................37
Mirrors ................................63
Outlet (Auxiliary Electrical Outlet) .........123, 127
Seats ..................................46
Steering ........................... .268, 269
Take-Off Adapter ........................ .266
Take-Off Operation ...................... .266
Windows ...............................99
Power Seats Down .............................. .46, 48
Forward ............................ .46, 48
520 INDEX