fuel Ram 2500 (Diesel) 2007 Owner's Manual

INTRODUCTION
This manual has been prepared with the assistance of
service and engineering specialists to acquaint you with
the operation and maintenance of your new vehicle. It is
supplemented by a Warranty Information Booklet and
various customer oriented documents. You are urged to
read these publications carefully. Following the instruc-
tions and recommendations in this manual will help
assure safe and enjoyable operation of your vehicle.
NOTE: After you read the manual, it should be stored
in the vehicle for convenient reference and remain with
the vehicle when sold, so that the new owner will be
aware of all safety warnings.
When it comes to service, remember that your dealer
knows your vehicle best, has the factory-trained techni-
cians and genuine Moparparts, and is interested in
your satisfaction.
A MESSAGE FROM DAIMLERCHRYSLER
CORPORATION
DaimlerChrysler Corporation and Cummins welcome
you as a new Dodge Ram Cummins Turbo Diesel-
powered truck owner.
Almost 100% of the heavy duty trucks in the United
States are diesel powered because of the fuel economy,
rugged durability, and high torque which permits pulling
heavy loads. Cummins engines power well over half of
these trucks. Now this same technology and proven
performance is yours in your new Dodge Ram truck
equipped with the Cummins, Turbocharged, Charge Air
Cooled, Diesel engine.
4 INTRODUCTION

Children Too Large for Booster Seats
Children who are large enough to wear the shoulder belt
comfortably, and whose legs are long enough to bend
over the front of the seat when their back is against the
seat back should use the lap/shoulder belt in a rear seat.
•Make sure that the child is upright in the seat.
•The lap portion should be low on the hips and as snug
as possible.
•Check belt fit periodically. A child’s squirming or
slouching can move the belt out of position.
If the shoulder belt contacts the face or neck, move the
child closer to the center of the vehicle. Never allow a
child to put the shoulder belt under an arm or behind
their back.
NEW ENGINE BREAK-IN
Your Cummins 24 Valve Turbo Diesel engine does not
require a break-in period due to its construction. Normal
operation is allowed, provided the following recommen-
dations are followed:
NOTE:Light duty operation such as light trailer towing
or no load operation, will extend the time before the
engine is at full efficiency. Reduced fuel economy and
power may be seen at this time.
•Warm up the engine before placing it under load.
•Do not operate the engine at idle for prolonged
periods.
•Use the appropriate transmission gear to prevent
engine lugging.
•Observe vehicle oil pressure and temperature indica-
tors.
74 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

Lights
Check the operation of all exterior lights. Check turn
signal and high beam indicator lights on the instrument
panel.
Door Latches
Check for positive closing, latching and locking.
Fluid Leaks
Check area under vehicle after overnight parking for fuel,
water, oil, or other fluid leaks. Also, if fuel fumes are
detected the cause should be located and corrected.
78 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

Electronic Speed Control — If Equipped......139
▫To Activate..........................139
▫To Set At A Desired Speed...............140
▫To Deactivate........................140
▫To Resume Speed.....................140
▫To Vary The Speed Setting...............140
▫To Accelerate For Passing...............141

Overhead Console — If Equipped...........142
▫Courtesy/Reading Lights................142

Overhead Console With Compass/Temperature
Mini-Trip Computer — If Equipped..........143
▫US/M Button........................143
▫Reset Button.........................144▫Global Reset.........................144
▫Step Button.........................144
▫Average Fuel Economy (AVG ECO)........145
▫Distance To Empty (DTE)...............145
▫Trip Odometer (ODO)..................146
▫Elapsed Time (ET).....................146
▫C/T Button.........................146
▫Automatic Compass Calibration...........147
▫Manual Compass Calibration.............147
▫Recalibrating The Compass..............148
▫Outside Temperature...................149

Overhead Console With Electronic Vehicle
Information Center (EVIC) — Diesel Only.....150
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 81
3

RESET Button
Use this button to reset the following displays:
Average Fuel Economy (AVG ECO)
Trip Odometer (ODO)
Elapsed time (ET)
Global Reset
If the RESET button is pressed twice within 2 seconds
while in any of the 3 resettable displays (AVG ECO,
ODO, ET), the Global Reset will reset all 3 displays.
Step Button
Use this button to choose or cycle through the four trip
conditions.
144 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Average Fuel Economy (AVG ECO)
Shows the average fuel economy since the last reset.
Average fuel economy is a running average of the
amount of fuel used and the distance the vehicle has
traveled.
When the fuel economy is reset, the display will momen-
tarily blank. Then, the history information will be erased,
and the averaging will continue from where it was before
the reset. The reset value is based on a minimal amount
of fuel used and the distance traveled from the previous
drive cycle. The display may take several miles for this
value to change dependent upon driving habits.
Distance To Empty (DTE)
Shows the estimated distance that can be traveled with
the fuel remaining in the tank. This estimated distance is
determined by weighted average of the instantaneous
and average fuel economy, according to the current fuel
tank level. This is not resettableNOTE:Significant changes in driving style or vehicle
loading will greatly affect the actual drivable distance of
the vehicle, regardless of the DTE displayed value.
When the DTE value is less than 30 miles estimated
driving distance, the DTE display will change to an
alternating test display of “LO” and “FUEL”. This dis-
play will continue until the vehicle runs out of fuel.
Adding a significant amount of fuel to the vehicle will
turn off the “LO FUEL” text and a new DTE value will be
displayed, based on the current values in the DTE
calculation and the current fuel tank level.
NOTE:It is possible for DTE to display “LO FUEL”
before the low fuel warning light turns on in the instru-
ment cluster. This could occur because low fuel warning
is set to a specified fuel tank volume and DTE is an
estimated distance calculation based on fuel economy
and remaining fuel tank volume.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 145
3

Ram fuel tank volumes are as follows:
•26 gallons - 1500 short box models
•34 gallons - 1500 Quad Cab (if equipped)/2500/3500
short box models
•35 gallons - 1500/2500/3500 long box models
Trip Odometer (ODO)
This display shows the distance traveled since the last
reset. Resetting of this screen will cause the trip odometer
to change to Zero.
Elapsed Time (ET)
This display shows the accumulated ignition ON time
since the last reset. Resetting the Elapsed Time will cause
the display to change to Zero.
C/T Button
Use this button to select a readout of the outside tem-
perature and one of eight compass headings that indicate
the direction in which the vehicle is facing.
146 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Electronic Vehicle Information Center (EVIC) — If
Equipped
Pressing the menu button will change the
display to one of the following features:
Trip Functions
Pressing the STEP button allows you to scroll through
one of the following Trip Function features:
•TRIP – Shows the total distance traveled since the last
reset. To reset the TRIP function, press and hold the
RESET button.
•ELAPSED TIME – Shows the total elapsed time of
travel since the last reset. Elapsed time will increment
when the ignition switch is in the ON/RUN or START
positions.
•UNIT IN US/METRIC – Press the RESET button to
toggle between US and METRIC.
•AVG. MPG – Shows the average fuel economy since
the last reset. When the fuel economy is reset, the
display will show dashes for two seconds. Then the
history information will be erased, and the averaging
will continue from the last fuel average reading beforeOverhead Console with EVIC
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 151
3

the reset. (Example: If your Electronic Vehicle Informa-
tion Center (EVIC) displays 18 AVG. MPG and the
RESET button is pressed, the previous averaging his-
tory will be erased and the display will return to the 18
AVG. MPG, not to 0 AVG. MPG). The display may take
several miles for the value to change dependent upon
driving habits.
•MI TO EMPTY (Distance To Empty) – Shows the
estimated distance that can be traveled with the fuel
remaining in the tank. This estimated distance is
determined by a weighted average of fuel economy,
according to the current fuel tank level. MI TO EMPTY
cannot be reset through the RESET button.
NOTE:Significant changes in driving style or vehicle
loading will greatly affect the actual drivable distance of
the vehicle, regardless of the DTE displayed value.
•When the DTE value is less than 30 miles (48 km)
estimated driving distance, the DTE display will
change to a text display ofLOW FUEL.This display
will continue until the vehicle runs out of fuel. Adding
a significant amount of fuel to the vehicle will turn off
theLOW FUELtext and a new DTE value will
display.
System Status (EVIC Displays)
When the appropriate conditions exist, the Electronic
Vehicle Information Center (EVIC) displays the following
messages:
•TURN SIGNALS ON (with a continuous warning
chime)
•PERSONAL SETTINGS NOT AVAILABLE – Vehicle
Not in Park or Vehicle in Motion (manual transmis-
sions only)
152 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

INSTRUMENT CLUSTER DESCRIPTION
1. Check Gages
This light illuminates when the Voltmeter, Engine
Oil Pressure or Engine Coolant Temperature
gages indicate a reading either too high or too low.
Examine the gages carefully, and follow the instructions
contained below for each indicated problem.
NOTE:When the ignition switch is turned to OFF, the
Fuel Gage, Voltmeter, Oil Pressure and Engine Coolant
Temperature gages may not show accurate readings.
When the engine is not running, turn the ignition switch
to ON to obtain accurate readings.
2. Voltmeter
When the engine is running, the gauge indicates
the electrical system voltage. The pointer should
stay within the normal range if the battery is charged. Ifthe pointer moves to either extreme left or right and
remains there during normal driving, the electrical sys-
tem should be serviced.
NOTE:If the gauge pointer moves to either extreme of
the gauge, the “Check Gages” indicator will illuminate
and a single chime will sound.
NOTE:
•The voltmeter may show a gauge fluctuation at vari-
ous engine temperatures. This cycling operation is
caused by the post-heat cycle of the intake manifold
heater system. The number of cycles and the length of
the cycling operation is controlled by the engine
control module. Post-heat operation can run for sev-
eral minutes, and then the electrical system and volt-
meter needle will stabilize.
•The cycling action will cause temporary dimming of
the headlamps, interior lamps, and also a noticeable
reduction in blower motor speed.
198 UNDERSTANDING YOUR INSTRUMENT PANEL