open hood Ram 4500 Chassis Cab 2018 User Guide

To minimize the possibility of catalytic converter damage:
•Do not interrupt the ignition when the transmission is in
gear and the vehicle is in motion.
• Do not try to start the vehicle by pushing or towing the
vehicle.
• Do not idle the engine with any ignition components
disconnected or removed, such as when diagnostic
testing, or for prolonged periods during very rough idle
or malfunctioning operating conditions.
Cooling System
WARNING!
You or others can be badly burned by hot engine
coolant (antifreeze) or steam from your radiator. If you
see or hear steam coming from under the hood, do not
open the hood until the radiator has had time to cool.
Never try to open a cooling system pressure cap when
the radiator is hot.
Engine Coolant Checks
Check the engine coolant (antifreeze) protection every 12
months (before the onset of freezing weather, where appli-
cable). If the engine coolant (antifreeze) is dirty or rusty in appearance, the system should be drained, flushed and
refilled with fresh coolant. Check the front of the A/C
condenser (if equipped) or radiator for any accumulation
of bugs, leaves, etc. If dirty, clean by gently spraying water
from a garden hose vertically down the face of the A/C
condenser (if equipped) or the back of the radiator core.
Check the engine cooling system hoses for brittle rubber,
cracking, tears, cuts and tightness of the connection at the
coolant recovery bottle and radiator. Inspect the entire
system for leaks.
DO NOT REMOVE THE COOLANT PRESSURE CAP
WHEN THE COOLING SYSTEM IS HOT.
Cooling System — Drain, Flush And Refill
NOTE:
Some vehicles require special tools to add coolant
properly. Failure to fill these systems properly could lead to
severe internal engine damage. If any coolant is needed to
be added to the system please contact your local autho-
rized dealer.
If the engine coolant (antifreeze) is dirty or contains visible
sediment, have an authorized dealer clean and flush with
OAT coolant (antifreeze) (conforming to MS.90032).
Refer to the “Maintenance Plan” in this section for the
proper maintenance intervals.
384 SERVICING AND MAINTENANCE

General Information........................ .182
Glass Cleaning ........................... .424
Grocery Bag Retainer .........................54
Gross Axle Weight Rating .....................293
Gross Vehicle Weight Rating ...................292
Guide, Body Builders .........................7
GVWR ................................. .290
Hazard Driving Through Flowing, Rising, Or Shallow
Standing Water ......................... .317
Hazard Warning Flasher ..................... .320
Headlights .............................. .326
Automatic ..............................72
Cleaning .............................. .420
High Beam ..............................71
High Beam/Low Beam Select Switch ...........71
Passing ................................72
Switch .................................69
Head Restraints ............................55
Heated Mirrors .............................67
High Beam/Low Beam Select (Dimmer) Switch ......71
Hill Descent Control ....................... .174
Hill Descent Control Indicator .................174
Hill Start Assist ........................... .166Hitches
Trailer Towing .......................... .298
Hoisting ................................ .393
HomeLink (Garage Door Opener) ...............102
Hood Prop .............................. .101
Hood Release ............................ .101
Hub Caps ............................... .344
Ignition ..................................27
Key ...................................27
Ignition Key Removal ........................27
Illuminated Entry ...........................78
Immobilizer (Sentry Key) ......................32
Inside Rearview Mirror ...............60, 61, 62, 320
Instrument Cluster ......................... .158
Instrument Panel Lens Cleaning ................423
Integrated Trailer Brake Controls ................302
Interior Appearance Care .....................422
Interior Lights ..............................76
Intermittent

Wipers (Delay Wipers) ...............79
Introduction ................................4
Inverter Outlet (115V) ...................... .127
Jack Operation ........................... .339
12
INDEX 517

Load Capacity...................... .400, 401
Pressure Monitor System (TPMS) .............176
Pressure Warning Light ....................155
Quality Grading ........................ .418
Radial ............................... .406
Replacement ........................... .409
Rotation .............................. .416
Safety ............................ .394, 404
Sizes ................................ .396
Snow Tires .............................411
Spare Tire ...........................411,413
Spinning .............................. .407
Trailer Towing .......................... .301
Tread Wear Indicators .....................408
Wheel Nut Torque ....................343, 427
Tire Safety Information ...................... .394
Tongue Weight/Trailer Weight .................299
To Open Hood ........................... .101
Torque Converter Clutch .....................256
Towing ............................. .292, 352
Disabled Vehicle ........................ .352
Guide ................................ .299
Recreational ............................311
Weight ............................... .299
Towing Vehicle Behind A Motorhome ............311Traction
................................ .316
Traction Control .......................... .168
Trailer Sway Control (TSC) ....................173
Trailer Towing ............................ .292
Cooling System Tips ..................... .308
Hitches ............................... .298
Minimum Requirements ....................300
Mirrors ................................67
Tips ................................. .307
Trailer And Tongue Weight ..................299
Wiring ............................... .306
T

railer Towing Guide ....................... .299
Trailer Weight ............................ .299
Transfer Case ............................ .393
Electronically Shifted ..................... .260
Fluid ................................ .437
Transmission Automatic ......................... .248, 389
Fluid ................................ .437
Maintenance ........................... .389
Shifting .............................. .246
Transporting Pets ......................... .233
Tread Wear Indicators ...................... .408
Turn Signals ....................... .75, 158, 326
524 INDEX