Towing Requirements — Tires
•Do not attempt to tow a trailer while using a compact
spare tire.
•Proper tire inflation pressures are essential to the safe
and satisfactory operation of your vehicle. Refer to
“Tires – General Information” in “Starting and Oper-
ating” for proper tire inflation procedures.
•Check the trailer tires for proper tire inflation pres-
sures before trailer usage.
•Check for signs of tire wear or visible tire damage
before towing a trailer. Refer to “Tires – General
Information” in “Starting and Operating” for the
proper inspection procedure.
•When replacing tires, refer to “Tires – General Infor-
mation” in “Starting and Operating” for proper tirereplacement procedures. Replacing tires with a higher
load carrying capacity will not increase the vehicle’s
GVWR and GAWR limits.
Towing Requirements — Trailer Brakes
WARNING!
•Do not connect trailer brakes to your vehicle’s
hydraulic brake lines. It can overload your brake
system and cause it to fail. You might not have
brakes when you need them and could have an
accident.
•Towing any trailer will increase your stopping
distance. When towing you should allow for addi-
tional space between your vehicle and the vehicle
in front of you. Failure to do so could result in an
accident.4
STARTING AND OPERATING 81
CAUTION!
If the trailer weighs more than 1,000 lbs (454 kg)
loaded, it should have its own brakes and they
should be of adequate capacity. Failure to do this
could lead to accelerated brake lining wear, higher
brake pedal effort, and longer stopping distances.
•Donotinterconnect the hydraulic brake system or
vacuum system of your vehicle with that of the trailer.
This could cause inadequate braking and possible
personal injury.
•An electronically actuated trailer brake controller is
required when towing a trailer with electronically
actuated brakes. When towing a trailer equipped with
a hydraulic surge actuated brake system, an electronic
brake controller is not required.•Trailer brakes are recommended for trailers over
1,000 lbs (454 kg) and required for trailers in excess of
1,653 lbs (750 kg).
Integrated Trailer Brake Module — If Equipped
Your vehicle may have an Integrated Trailer Brake Mod-
ule (ITBM) for Electric and Electric Over Hydraulic
(EOH) trailer brakes.
NOTE:This module has been designed and verified with
electric trailer brakes and new electric over hydraulic
systems. Some previous EOH systems may not be com-
patible with ITBM.
82 STARTING AND OPERATING
Common Towing Definitions
The following trailer towing related definitions will assist
you in understanding the following information:
Gross Vehicle Weight Rating (GVWR)
The GVWR is the total allowable weight of your vehicle.
This includes driver, passengers, cargo and tongue
weight. The total load must be limited so that you do not
exceed the GVWR. Refer to “Vehicle Loading/Vehicle
Certification Label” in “Starting and Operating” for
further information.
Gross Trailer Weight (GTW)
The GTW is the weight of the trailer plus the weight of all
cargo, consumables and equipment (permanent or tem-
porary) loaded in or on the trailer in itsloaded and
ready for operationcondition. The recommended way tomeasure GTW is to put your fully loaded trailer on a
vehicle scale. The entire weight of the trailer must be
supported by the scale.
Gross Combination Weight Rating (GCWR)
The GCWR is the total permissible weight of your vehicle
and trailer when weighed in combination.
Gross Axle Weight Rating (GAWR)
The GAWR is the maximum capacity of the front and rear
axles. Distribute the load over the front and rear axles
evenly. Make sure that you do not exceed either front or
rear GAWR. Refer to “Vehicle Loading/Vehicle Certifica-
tion Label” in “Starting and Operating” for further
information.
262 STARTING AND OPERATING
•Proper tire inflation pressures are essential to the safe
and satisfactory operation of your vehicle. Refer to
“Tires – General Information” in “Starting and Oper-
ating” for proper tire inflation procedures.
•Check the trailer tires for proper tire inflation pres-
sures before trailer usage.
•Check for signs of tire wear or visible tire damage
before towing a trailer. Refer to “Tires – General
Information” in “Starting and Operating” for the
proper inspection procedure.
•When replacing tires, refer to “Tires – General Infor-
mation” in “Starting and Operating” for proper tire
replacement procedures. Replacing tires with a higher
load carrying capacity will not increase the vehicle’s
GVWR and GAWR limits.Towing Requirements — Trailer Brakes
WARNING!
•Do not connect trailer brakes to your vehicle’s
hydraulic brake lines. It can overload your brake
system and cause it to fail. You might not have
brakes when you need them and could have an
accident.
•Towing any trailer will increase your stopping
distance. When towing you should allow for addi-
tional space between your vehicle and the vehicle
in front of you. Failure to do so could result in an
accident.
4
STARTING AND OPERATING 269
CAUTION!
If the trailer weighs more than 1,000 lbs (454 kg)
loaded, it should have its own brakes and they
should be of adequate capacity. Failure to do this
could lead to accelerated brake lining wear, higher
brake pedal effort, and longer stopping distances.
•Donotinterconnect the hydraulic brake system or
vacuum system of your vehicle with that of the trailer.
This could cause inadequate braking and possible
personal injury.
•An electronically actuated trailer brake controller is
required when towing a trailer with electronically
actuated brakes. When towing a trailer equipped with
a hydraulic surge actuated brake system, an electronic
brake controller is not required.•Trailer brakes are recommended for trailers over
1,000 lbs (454 kg) and required for trailers in excess of
1,653 lbs (750 kg).
Integrated Trailer Brake Module — If Equipped
Your vehicle may have an Integrated Trailer Brake Mod-
ule (ITBM) for Electric and Electric Over Hydraulic
(EOH) trailer brakes.
NOTE:This module has been designed and verified with
electric trailer brakes and new electric over hydraulic
systems. Some previous EOH systems may not be com-
patible with ITBM.
270 STARTING AND OPERATING
Tank Capacity..........................121
Fueling.................................92
Gauges
Speedometer...........................23
Tachometer............................18
Voltmeter..............................63
Gross Axle Weight Rating....................75
Gross Vehicle Weight Rating..................74
Hitches
Trailer Towing..........................77
Information Center, Vehicle...................30
Instrument Cluster.........................16
Integrated Trailer Brake Controls...............82
Intervention Regeneration Strategy..............41
Keyless Enter-N-Go........................61Lights
Airbag................................23
Alarm................................24
Anti-Lock.............................18
Brake Warning..........................21
Check Engine (Malfunction Indicator)..........18
Fog ..................................26
High Beam............................22
High Beam Indicator......................22
Instrument Cluster.......................18
Seat Belt Reminder.......................22
Security Alarm..........................24
Tire Pressure Monitoring (TPMS).............24
Warning (Instrument Cluster Description).......18
Maintenance Procedures....................101
Maintenance Schedule......................128
New Vehicle Break-In Period..................14
348 INDEX - RAM 1500
Oil, Engine..............................102
Capacity.............................121
Change Interval........................103
Dipstick..............................102
Disposal..............................104
Filter............................104 , 122
Filter Disposal.........................104
Materials Added to......................104
Recommendation.......................102
Viscosity.............................103
Overheating, Engine........................20
Radiator Cap (Coolant Pressure Cap)...........113
Remote Starting System......................12
Schedule, Maintenance.....................128
Seat Belts
Reminder..............................22
Selection of Coolant (Antifreeze)...............122Signals, Turn.............................19
Speedometer.............................23
Starting.................................59
Automatic Transmission...................60
Engine Block Heater...................62,68
Remote...............................12
Starting Procedures.........................59
Starting Procedures (Diesel Engines).............59
Tachometer..............................18
Tip Start................................60
Ti re s
Pressure Warning Light....................24
Tongue Weight/Trailer Weight.................78
Towing.................................74
Guide................................78
Weight...............................78
Trailer Towing............................74
Cooling System Tips......................90
INDEX - RAM 1500 349
Engine Oil Disposal.....................296
Flashers
Turn Signal...........................155
Fluid Capacities..........................327
Fluid Level Checks
Brake................................316
Manual Transmission....................318
Transfer Case..........................317
Fluids, Lubricants and Genuine Parts...........328
Fog Lights..............................162
Fuel...................................248
Adding..........................253 , 256
Diesel........................248 , 256 , 328
Filter................................300
Requirements..........................248
Specifications..........................249
Tank Capacity..........................327
Fueling................................253Gauges
Speedometer..........................159
Tachometer............................154
Voltmeter.............................214
Gear Ranges.............................228
Gross Axle Weight Rating...................262
Gross Vehicle Weight Rating..................262
Hitches
Trailer Towing.........................265
Idle Up Feature...........................218
Information Center, Vehicle..................166
Instrument Cluster........................152
Integrated Trailer Brake Controls..............270
Intervention Regeneration Strategy.............178
Jump Starting............................282
INDEX - RAM 2500 / 3500 / 4500 / 5500 353