trailer RAM CHASSIS CAB 2007 Owner's Guide

Towing Tips — Cooling System
To reduce potential for engine and transmission over-
heating, take the following actions:
City Driving
When stopped for short periods of time, put transmission
in neutral and increase engine idle speed.
Highway Driving
Reduce speed.
Air Conditioning
Turn off temporarily.
refer to Cooling System Operating information in the
Maintenance section of this manual for more informa-
tion. Trailer Towing Mirrors — If Equipped
These mirrors are designed with an adjustable mirror
head to provide a greater vision range when towing
extra-wide loads. To change position inboard or out-
board, the mirror head should be rotated (flipped Out or
In). A small blindspot mirror is integrated onto the main
mirror surface.
NOTE: Fold th e7x10 inch trailer towing mirrors
rearward prior to entering an automated car wash.354 STARTING AND OPERATING

SNOWPLOW
Snowplow Prep Packages are available as a factory
installed option. These packages include components
necessary to equip your vehicle with a snowplow.Blindspot Mirror Trailer Towing Position STARTING AND OPERATING 355
5

Change Engine Oil (Gas Engines)
Road conditions as well as your kind of driving affect the
interval at which your oil should be changed. Check the
following to determine if any apply to you:
• Frequent short trips where the engine does not achieve
full operating temperature (operating temperature de-
fined as 190° F (66° C ) coolant temperature).
• Extensive engine idling (over 10 minutes per hour of
operation) at ambient temperatures less than 32° F (0°
C).
• Driving in dusty conditions.
• Frequent trailer towing.
• Taxi, police, or delivery service (commercial service).
• Off-road or desert operation.
• Extensive operation at high engine speeds (greater
than 2900 rpm) and loads (greater than 70% throttle). If ANY of these apply to you, then change your engine oil
at every interval shown in schedule  B  of the  Mainte-
nance Schedules  section of this manual.
If none of these apply to you, then change your engine oil
at every interval shown on schedule  A  of the  Mainte-
nance Schedules  section of this manual.
NOTE: Most vehicles are operated under the conditions
listed for Schedule  B. 
Dusty Conditions
Driving through dust-laden air increases the problems of
keeping abrasive materials out of the engine. Under these
conditions, special attention should be given to the
engine air cleaner, the crankcase inlet air cleaner and the
crankcase ventilation system. Make sure that these units
are clean at all times. This will tend to reduce to a
minimum the amount of abrasive material that may enter
the engine.400 MAINTAINING YOUR VEHICLE

reference holes when the transmission reaches 180° F (21°
C). Remember it is best to check the level at the normal
operating temperature.
CAUTION!Be aware that if the fluid temperature is below 50° F
(10° C), it may not register on the dipstick. Do not
add fluid until the temperature is elevated enough to
produce an accurate reading.
7. Check for leaks. Release the Parking Brake.
NOTE: To prevent dirt and water from entering the
transmission after checking or replenishing fluid, make
certain that the dipstick cap is properly reseated. It is
normal for the dipstick cap to spring back slightly from
its fully seated positions, as long as its seal remains
engaged in the dipstick tube. Automatic Transmission Fluid and Filter Change
The fluid and filter(s) should be changed and the as
specified in the Maintenance Schedule (Section 8). Ve-
hicles having severe usage should follow Maintenance
Schedule “B” of the Maintenance Schedule (Section 8).
Severe usage consists of:
• Off-the-highway operation;
• Trailer towing;
• Snow plow operation;
• Prolonged operation with heavy loading, especially in
hot weather.
NOTE: If the transmission is disassembled for any
reason, the fluid and filter should be changed, and the
bands adjusted (if equipped).440 MAINTAINING YOUR VEHICLE

The fluid and filter(s) should be changed and the bands
adjusted (if equipped) as specified in the Maintenance
Schedule (Section 8). Vehicles equipped with gas engines
having severe usage should follow Maintenance Sched-
ule “B” of the Maintenance Schedule (Section 8).
Severe usage consists of:
• Off-the-highway operation;
• Trailer towing;
• Snow plow operation;
• Prolonged operation with heavy loading, especially in
hot weather.
NOTE: If the transmission is disassembled for any
reason, the fluid and filter should be changed, and the
bands adjusted (if equipped). Special Additives
The manufacturer recommends against the addition of
any additives to the transmission. Exception to this
policy is the use of special dyes to aid in detecting fluid
leaks. The use of transmission sealers should be avoided,
since they may adversely affect seals.
Front and rear Wheel Bearings
Front Wheel Bearings
Front wheel bearings for all Dodge Ram Trucks are
sealed-for-life. They do not require greasing or seal
replacement. In some instances, these bearings will
“purge” excess grease and the bearing will look slightly
wet. This is normal. Periodic inspection for excess play is
recommended.444 MAINTAINING YOUR VEHICLE

Cavity Cartridge
Fuse Mini
Fuse Description
8 10 Amp
Red Heated Mirrors
9 30 Amp
Pink Off Road Module
Power
10 5 Amp
Orange Trx-Off Rd Pkg Sen
(Gas Engine Only)
NOTE: Insert a 5 amp fuse in this cavity to enable
the TRX capability.
11 20 Amp
Yellow Ignition Off Draw
(IOD)-Cabin Compart-
ment Node (CCN)/
Radio/Under Hood
Lamp/Wireless Con-
trol Module (WCM)/
Satellite Digital Audio
Receiver (SDARS)/
Hands Free Module
(HFM) Cavity Cartridge
Fuse Mini
Fuse Description
12 30 Amp
Pink Electric Brake
13 25 Amp
Natural Power-Battery
RWAL/ABS Module
Feed
14 15 Amp
Blue Park Lamps Left
15 20 Amp
Yellow Trailer Park Lamps
16 15 Amp
Blue Park Lamps Right
17 – –
18 40 Amp
Green ABS Pump
19 30 Amp
Pink Trailer Tow
20 10 Amp
Red Occupant Restraints
Controller (ORC) 2458 MAINTAINING YOUR VEHICLE

WARNING!You can be badly injured working on or around a
motor vehicle. Do only that service work for which
you have the knowledge and the right equipment. If
you have any doubt about your ability to perform a
service job, take your vehicle to a competent me-
chanic.
MAINTENANCE SCHEDULES – GAS ENGINES
There are two maintenance schedules that show the
required service for your vehicle.
First is Schedule “B” . It is for vehicles that are operated
under one or more of the following conditions that are
listed below and at the beginning of the schedule.
• Day or night temperatures are below 32° F (0° C).
• Stop and go driving. • Extensive engine idling.
• Driving in dusty conditions.
• Short trips of less than 10 miles (16 km).
• More than 50% of your driving is at sustained high
speeds during hot weather, above 90° F (32°C).
• Trailer towing.
• Snowplowing.
• Heavy Loading.
• Taxi, police, or delivery service (commercial service).
• Off-road or desert operation.
• If equipped for and operating with E-85 (ethanol)
fuel.
NOTE: If ANY of these apply to you then change your
engine oil every 3,000 miles (5 000 km) or 3 months,484 MAINTENANCE SCHEDULES
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Schedule “B”
Follow schedule “B” if you usually operate your vehicle
under one or more of the following conditions.
• Day or night temperatures are below 32° F (0° C).
• Stop and go driving.
• Extensive engine idling.
• Driving in dusty conditions.
• Short trips of less than 10 miles (16 km).
• More than 50% of your driving is at sustained high
speeds during hot weather, above 90° F (32° C).
• Trailer towing.
• Snowplowing.
• Heavy Loading.
• Taxi, police, or delivery service (commercial service). • Off-road or desert operation.
• If equipped for and operating with E-85 (ethanol)
fuel.
NOTE: If ANY of these apply to you then change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first and follow schedule “B” of the
 Maintenance Schedules  section of this manual.
NOTE: If ANY of these apply to you then flush and
replace your engine coolant every 102,000 miles (170 000
km) or 60 months, whichever comes first and follow
schedule “B” of the  Maintenance Schedules  section of
this manual.
NOTE: If none of these apply to you, then change your
engine oil at every interval shown on schedule  A  of the
 Maintenance Schedules  section of this manual. SCHEDULE “B” 487
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Miles 105,000 108,000 111,000 114,000 117,000 120,000
(Kilometers) (175 000) (180 000) (185 000) (190 000) (195 000) (200 000)
Inspect engine air cleaner filter, replace if
necessary. XX
Replace spark plugs. X
Inspect PCV valve, replace as necessary. X
Inspect auto tension drive belt and replace if
required.* XX
Flush and replace engine coolant if not done
at 102,000 miles (170 000 km). X
*This maintenance is not required if the belt was previ-
ously replaced.
** This applies only if the vehicle is used for frequent
trailer towing, snowplowing, fleet vehicle or commercial
service. Inspection and service should also be performed anytime
a malfunction is observed or suspected. Retain all re-
ceipts. SCHEDULE “B” 497
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Gasoline (Fuel) ......................... 327
Gasoline, Reformulated ................... 328
Gauges ............................... 172
Coolant Temperature .................... 174
Fuel ................................ 179
Oil Pressure .......................... 174
Speedometer ......................... 173
Tachometer .......................... 173
Voltmeter ......................... 172,257
Gear Ranges ...................... 267,273,280
General Information .................... 18,112
Glass Cleaning .......................... 456
Grocery Bag Retainer ..................... 159
Gross Axle Weight Rating .................. 342
Gross Vehicle Weight Rating ................ 341
GVWR ............................... 338
Hands-Free Phone (UConnect™) .............. 87
Hazard Warning Flasher ................... 370 Head Restraints ......................... 115
Headlights ............................ 462
Cleaning ............................ 455
High Beam ........................... 127
High Beam/Low Beam Select Switch ........ 127
Lights On Reminder .................... 125
Passing ............................. 126
Switch .............................. 124
Heated Mirrors ....................... 86,160
Heated Seats ........................... 118
Heater ............................... 233
Heater, Engine Block ..................... 265
High Beam/Low Beam Select (Dimmer) Switch . . 127
Hitches
TrailerTowing ........................ 345
Hoisting .............................. 381
Hood Release .......................... 120
Hoses ................................ 433
Hub Caps ............................. 377520 INDEX