2018 Ram 4500 Chassis Cab coolant level

•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.
• 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 emissions.
Brake System
In order to assure brake system performance, all brake
system components should be inspected periodically. Refer
to the “Maintenance Plan” in this section for the proper
maintenance intervals.
WARNING!
Riding the brakes can lead to brake failure and possi-
bly a collision. Driving with your foot resting or riding
on the brake pedal can result in abnormally high brake
temperatures, excessive lining wear, and possible
brake damage. You would not have your full braking
capacity in an emergency.
Fluid Level Check — Brake Master Cylinder
The fluid level of the master cylinder should be checked
when performing under the hood service or immediately if
the brake system warning lamp indicates system failure.
The brake master cylinder has a translucent plastic reser-
voir. 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
MAX mark because leakage may occur at the cap.
With disc brakes the fluid level can be expected to fall as
the brake linings wear. However, an unexpected drop in
fluid level may be caused by a leak and a system check
should be conducted.
Refer to “Fluids And Lubricants” in “Technical Specifica-
tions” for further information.
WARNING!
• Use only manufacturer’s recommended brake fluid.
Refer to “Fluids And Lubricants” in “Technical
Specifications” for further information. Using the
wrong type of brake fluid can severely damage your
(Continued)
388 SERVICING AND MAINTENANCE

Adding Engine Coolant (Antifreeze).............385
Adding Fuel ............................. .289
Additives, Fuel ........................ .290, 430
Adjust Down .............................. .46, 48
Forward ............................ .46, 48
Rearward ........................... .46, 48
Up ................................ .46, 48
Adjustable Pedals ...........................59
Air Bag Air Bag Operation ....................... .200
Air Bag Warning Light .....................197
Enhanced Accident Response .............206, 355
Event Data Recorder (EDR) .................355
If A Deployment Occurs ....................205
Knee Impact Bolsters ..................... .201
Maintaining Your Air Bag System .............207
Transporting Pets ....................... .233
Air Bag Light ...................... .150, 197, 234
Air Bag Maintenance ....................... .207
Air Cleaner, Engine (Engine Air Cleaner Filter) ......368
Air Conditioner Maintenance ..................371
Air Conditioning ............................82
Air Conditioning Filter ....................97, 372
Air Conditioning, Operating Tips ................97Air Conditioning Refrigerant
...............371, 372
Air Conditioning System ...................96, 371
Air Filter ............................... .368
Air Pressure, Tires ......................... .405
Alarm, Panic ...............................22
Alarm (Security Alarm) ....................33, 151
Alarm System (Security Alarm) .................33
Alterations/Modifications, Vehicle ................7
Antifreeze (Engine Coolant) ...................385
Capacities ............................. .434
Disposal .............................. .387
Anti-Lock Brake System (ABS) .................164
Anti-Lock Warning Light .....................156
Ashtray ................................ .127
Assist,

Hill Start .......................... .166
Audio Systems (Radio) ...................... .441
Auto Down Power Windows ...................99
Automatic Door Locks ........................40
Automatic Headlights ........................72
Automatic High Beams .......................71
Automatic Temperature Control (ATC) ............96
Automatic Transmission Adding Fluid .......................... .391
Fluid And Filter Changes ...................392
Fluid Level Check .....................389, 390
512 INDEX

Child Restraints........................ .208
Child Seat Installation ..................223, 224
How To Stow An Unused ALR Seat Belt ........221
Infants And Child Restraints ................210
Locating The LATCH Anchorages .............217
Lower Anchors And Tethers For Children .......214
Older Children And Child Restraints ...........211
Seating Positions ........................ .213
Cigar Lighter ............................ .127
Clean Air Gasoline ........................ .430
Cleaning Wheels ............................... .413
Climate Control ............................82
Manual ................................82
Cold Weather Operation ..................... .244
Compact Disc (CD) Maintenance ................502
Compact Spare Tire .........................411
Contract, Service .......................... .508
Coolant Pressure Cap (Radiator Cap) .............386
Cooling System ........................... .384
Adding Coolant (Antifreeze) .................385
Coolant Capacity ........................ .434
Coolant Level ....................... .384, 387
Disposal Of Used Coolant ..................387
Drain, Flush, And Refill ....................384 Inspection
............................. .387
Points To Remember ..................... .387
Pressure Cap ........................... .386
Radiator Cap .......................... .386
Selection Of Coolant (Antifreeze) ..........385, 435
Corrosion Protection ....................... .420
Cruise Light ............................. .159
Cupholders .............................. .122
Customer Assistance ....................... .506
Customer Programmable Features ...............464
Daytime Running Lights ......................71
Dealer Service ............................ .366
Defr
oster, Rear Window .......................82
Defroster, Windshield .....................82, 234
Delay (Intermittent) Wipers ....................79
Diagnostic System, Onboard ...................159
Differential, Limited-Slip .....................265
Dipsticks Automatic Transmission ....................390
Power Steering ......................... .269
Disabled Vehicle Towing .....................352
Disposal Antifreeze (Engine Coolant) .................387
Door Ajar ............................... .153
514 INDEX