ignition Ram 2500 (Diesel) 2007 Service Manual

selected. To make your selection, press and release the
RESET button until “ON” or “OFF” appears.
•“HEAD LAMP OFF DELAY > 0 SEC” – When this
feature is selected, the driver can choose to have the
headlights remain on for 0, 30, 60, or 90 seconds when
exiting the vehicle. To make your selection, press and
release the RESET button until “0,” “30,” “60,” or “90”
appears.
•“KEY OFF POWER DELAY > OFF” – When this
feature is selected, the power window switches, radio,
hands–free system (if equipped), and power outlets
will remain active for up to 60 minutes after the
ignition switch is turned off. Opening a vehicle door
will cancel this feature. To make your selection, press
and release the RESET button until “Off,” “45 sec.,” “5
min.,” “10 min appears.
•“ILLUMINATED APRCH > OFF” – When this feature
is selected, the headlights will activate and remain on
for up to 90 seconds when the doors are unlocked with
the remote keyless entry transmitter. To make your
selection, press and release the RESET button until
“OFF,” “30 sec.,” “60 sec.,” or “90 sec.” appears.
NOTE:If this feature is enabled, the headlamps will be
on during the engine pre-heat and cold crank; therefore,
it is recommended that the feature be disabled when
overnight ambient temperature is at or below 20F (-7C) to
prevent excessive drain on batteries during cold cranking
•“UNIT IN > US/METRIC” – The EVIC, odometer can
be changed between English and Metric units of
measure. To make your selection, press and release the
RESET button until “US” or “METRIC” appears.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 155
3

•“COMPASS VARIANCE > 1” – Press the RESET
button to change the compass variance setting. Refer
to Compass Variance, in this section for additional
information.
•“COMPASS CALIBRATE > YES” – Press the RESET
button to calibrate the compass. Refer to Manual
Compass Calibration, in this section for additional
information.
•OIL CHANGE REQUIRED — If Equipped
Your vehicle is equipped with an engine oil change
indicator system. This system will alert you when it is
time to change your engine oil by displaying the
words “Oil Change Required” on your Electronic
Vehicle Information Center (EVIC).Oil Change Indicator – Reset (If Equipped)
To reset the oil change indicator system (after performing
the scheduled maintenance) refer to the following proce-
dure:
1. Turn the ignition switch to the ON position(Do not
start the engine)..
2. Fully depress the accelerator pedal slowly three
times within 10 seconds.
3. Turn the ignition switch to the OFF/LOCK position.
NOTE:If the indicator message illuminates when you
start the vehicle, the oil change indicator system did not
reset. If necessary repeat this procedure.
156 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Manual Compass Calibration
If the compass appears erratic and the “CAL” message
does not appear in the EVIC display, you must put the
compass into the Calibration Mode manually as follows:
1. Turn the ignition switch to the ON/RUN position.
2. Press the menu button until Personal Settings is dis-
played.
3. Press the STEP button until “Calibrate Compass YES”
is displayed.
4. Press and release the RESET button to start the cali-
bration. The message “CAL” will display in the EVIC.
5. Slowly drive the vehicle 5 mph in a complete 360°
circle (in an area free from large metal or metallic objects)
until the “CAL” message turns off. The compass will now
function normally.
Compass Variance
Compass Variance is 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
using the following procedure:
NOTE:Magnetic materials should be kept away from
the overhead console. This is where the compass sensor is
located.
158 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

1. Turn the ignition switch to the ON/RUN position.
2. Press the menu button until Personal Settings is dis-
played.
3. Press the STEP button until “Compass Variance” is
displayed.
4. Press and release RESET button until the proper
variance zone is selected according to the map.
5. Press and release the compass button to exit.
Compass Variance Map
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 159
3

Security
If you sell your vehicle, be sure to erase the frequencies.
To erase all of the previously trained frequencies, hold
down both outside buttons until the green light begins to
flash.
This device complies with part 15 of FCC rules and with
RSS-210 of Industry Canada. Operation is subject to the
following conditions:
•This device may not cause harmful interference.
•This device must accept any interference that may be
received including interference that may cause undes-
ired operation.NOTE:Changes or modifications not expressly ap-
proved by the party responsible for compliance could
void the user’s authority to operate the equipment.
HomeLinkis a trademark owned by Johnson Controls,
Inc.
POWER SUNROOF — IF EQUIPPED
The power sunroof switch is located between the sun
visors on the overhead console.
NOTE:The Power Accessory Delay feature will allow
the power sunroof to operate for ten minutes after the
ignition is turned off.
166 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

WARNING!
•Never leave children alone in a vehicle. Leaving
children in a vehicle unattended is dangerous for a
number of reasons. A child or others could be
seriously or fatally injured. Don’t leave the keys in
the ignition. A child could operate power win-
dows, other controls, or move the vehicle.
•In an accident, there is a greater risk of being
thrown from a vehicle with an open sunroof. You
could also be seriously injured or killed. Always
fasten your seat belt properly and make sure all
passengers are properly secured too.
•Do not allow small children to operate the sun-
roof. Never allow fingers or other body parts, or
any object to project through the sunroof opening.
Injury may result.
Open Sunroof - Express Mode
Momentarily pressing the switch rearward will activate
the Express Open Feature, causing the sunroof to open
automatically. During the Express Open operation, any
movement of the switch will stop the sunroof and it will
remain in a partial open position. Again, momentarily
pressing the switch rearward will activate the Express
Open Feature.
Comfort Stop
The sunroof is equipped with an intermediate “Comfort
Stop” position. This is the first stop that express open
reaches. This is designed to reduce wind buffeting at
vehicle speeds between 20 - 40 mph (32 - 64 km/h).
Pressing the switch momentarily rearward again will
open the sunroof to its full open position however wind
buffeting can occur at full open.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 167
3

The outlet(s) has/have a fused direct feed from the
battery so it/they receive power whether the ignition is
ON or OFF.
All accessories connected to this/these outlet(s) should
be removed or turned OFF when the vehicle is not in use
to protect the battery against discharge.
NOTE:If desired, all of the power outlets can be
converted by your authorized dealer to provide power
with the ignition switch in the ON position only.CAUTION!
Electrical Outlet Use With Engine Off
•Many accessories that can be plugged in draw
power from the vehicle’s battery, even when not in
use (i.e. cellular phones, etc.). Eventually, if
plugged in long enough, the vehicle’s battery will
discharge sufficiently to degrade battery life
and/or prevent engine starting.
•Accessories that draw higher power (i.e. coolers,
vacuum cleaners, lights, etc.), will discharge the
battery even more quickly. Only use these inter-
mittently and with greater caution.
•After the use of high power draw accessories, or
long periods of the vehicle not being started (with
accessories still plugged in), the vehicle must be
driven a sufficient length of time to allow the
generator to recharge the vehicle’s battery.
170 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

CIGAR LIGHTER AND ASH RECEIVER
The removable ash receiver is located in the instrument
panel cup holder tray.
The cigar lighter is located on the instrument panel,
above and to the left of the ash receiver.
As a child safety precaution, the lighter only operates
with the ignition switch ON. It heats when pushed in and
pops out automatically when ready for use.To preserve
the heating element, do not hold the lighter in the
heating position.
Ash Tray Automatic Transmission
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 171
3

Plastic Grocery Bag Retainers (Mega Cab
Models)
Retainer hooks which will hold plastic grocery bag
handles are built into the back panel of the cab, behind
the rear seat.
REAR WINDOW FEATURES
Electric Rear Window Defroster and Heated Side
view Mirrors — If Equipped
The Electric Rear Window Defroster and Heated
side view mirrors are activated by pressing the
heated grid button, located on the Climate Control panel,
with the ignition On. Turning Off the ignition will
deactivate the Electric Rear Window Defroster and
Heated side view mirrors feature. These features also
turn off after activation, when 15 minutes have elapsed.
To reactivate, simply press the button again.
Grocery Bag Hooks
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 181
3

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