2007 DODGE RAM 2500 DIESEL Owners Manual

OVERHEAD CONSOLE WITH
COMPASS/TEMPERATURE MINI-TRIP COMPUTER
— IF EQUIPPED
This optional overhead console consists of the following:
•Courtesy Lights
•Compass/Temperature Mini-Trip Computer (CMTC) This overhead console allows you to choose between a
compass/temperature display and one of four trip con-
ditions being monitored.
US/M Button
Use this button to change the display from U.S. to metric
measurement units.
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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.
138 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 resettable 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 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.
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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.
140 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

WARNING!
Even if the display still reads a few degrees above
32°F ( 0°C), the road surface may be icy, particularly
in woods or on bridges. Drive carefully under such
conditions to prevent an accident and possible per-
sonal injury or property damage.
Automatic Compass Calibration
This compass is self-calibrating which eliminates the
need to manually set the compass. When the vehicle is
new, the compass may appear erratic and the CAL
symbol will be displayed.
After completing up to three 360° turns, with the vehicle
traveling less than 5 mph (8 km/h), in an area free from
large metal or metallic objects, the CAL symbol will turn
off and the compass will function normally.
Manual Compass Calibration
NOTE: To ensure proper compass calibration, make
sure the compass variance is properly set before manu-
ally calibrating the compass.
If the compass appears erratic and the CAL symbol does
not appear, you must manually put the compass into the
“Calibration” mode.
Recalibrating The Compass
Turn on the ignition and set the display to “Compass/
Temperature.” Press and hold the RESET button to
change the display between VAR (compass variance) and
CAL (compass calibration) modes. When the CAL sym-
bol is displayed complete one 360° turn in an area free
from large metal objects or power lines. The CAL symbol
will turn off and the compass will function normally.
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Compass Varianceis the difference between magnetic
north and geographic north. In some areas of the country,
the difference between magnetic and geographic north is
great enough to cause the compass to give false readings.
If this occurs, the compass variance must be set according
to the Compass Variance Map.
142 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

NOTE:The default for the compass variance is zone 8.
To set the variance: Turn the ignition ON and set the
display to “Compass/Temperature.” Press and hold the
RESET button approximately five seconds. The last vari-
ance zone number will be displayed. Press the STEP
button to select the new variance zone and press the
RESET button to resume normal operation.
Outside Temperature
Because the ambient temperature sensor is located un-
derhood, engine temperature can influence the displayed
temperature, therefore, temperature readings are slowly
updated when the vehicle speed is below 20 mph (30
km/h) or during stop and go driving.
GARAGE DOOR OPENER — IF EQUIPPED
The HomeLink Universal Transceiver replaces up to
three remote controls (hand held transmitters) that operate
devices such as garage door openers, motorized gates, or
home lighting. It triggers these devices at the push of a
button. The Universal Transceiver operates off your vehi-
cle’s battery and charging system; no batteries are needed.
HomeLink Programming Buttons
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For additional information on HomeLink, call 1–800–
355–3515, or on the internet at www.homelink.com.
WARNING!
A moving garage door can cause injury to people and
pets in the path of the door. People or pets could be
seriously or fatally injured. Only use this transceiver
with a garage door opener that has a “stop and
reverse” feature as required by federal safety stan-
dards. This includes most garage door opener mod-
els manufactured after 1982. Do not use a garage
door opener without these safety features it could
cause injury or death. Call toll-free 1–800–355–3515
or, on the Internet at www.homelink.com for safety
information or assistance.
WARNING!
Vehicle exhaust contains carbon monoxide, a danger-
ous gas. Do not run the vehicle’s exhaust while
training the transceiver. Exhaust gas can cause seri-
ous injury or death.
WARNING!
Your motorized door or gate will open and close
while you are training the Universal Transceiver. Do
not train the transceiver if people or pets are in the
path of the door or gate. A moving door or gate can
cause serious injury or death to people and pets or
damage to objects.
144 UNDERSTANDING THE FEATURES OF YOUR VEHICLE