2008 DODGE RAM 2500 GAS light

31. CRUISE Light
This indicator lights when the electronic speed control
system is turned on.
32. Coolant Temperature Light ± Base Cluster Only
This light indicates engine coolant temperature is
to high. If the light comes on, stop the vehicle, shift
into NEUTRAL, and increase the engine idle
speed for two to three minutes. If the light does not turn
off, shut your engine OFF and allow it to cool. See an
authorized dealer for service immediately. Refer to
ªCooling Systemº under ªMaintaining Your Vehicleº in
section 7.
CAUTION!
Do not leave your vehicle unattended with the en-
gine running as you would not be able to react to the
temperature indicator if the engine overheats.NOTE:Engine idle speed will automatically increase to
1000 rpm at elevated coolant temperatures to improve
engine cooling.
33. Battery Voltage Indicator Light ± Base Cluster
Only
When the engine is running, this light indicates
the electrical system voltage is out of normal
range. This indicator may also illuminate prior to the
voltage gauge moving out of normal range. In either case,
see you local authorized dealer for system service.
34. Oil Pressure Indicator light ± Base Cluster Only
This light indicates continuous high or low oil
pressure, and under normal driving conditions,
may indicate a lubrication system malfunction. Immedi-
ate service should be obtained.
208 UNDERSTANDING YOUR INSTRUMENT PANEL

Electrical Disturbances
Radio waves may pick up electrical disturbances during
transmission. They mainly affect the wave amplitude,
and thus remain a part of the AM reception. They
interfere very little with the frequency variations that
carry the FM signal.
TWO TYPES OF SIGNALS
There are two basic types of radio signals: AM or
Amplitude Modulation, in which the transmitted sound
causes the amplitude, or height, of the radio waves to
vary; and FM or Frequency Modulation, in which the
frequency of the wave is varied to carry the sound.
AM Reception
AM sound is based on wave amplitude, so AM reception
can be disrupted by such things as lightning, power lines
and neon signs.
FM Reception
Because FM transmission is based on frequency varia-
tions, interference that consists of amplitude variations
can be filtered out, leaving the reception relatively clear,
which is the major feature of FM radio.
NOTE:The radio, steering wheel radio controls (if
equipped), and six-disc CD/DVD changer (if equipped)
will remain active for up to 10 minutes after the ignition
switch has been turned OFF. Opening a vehicle front
door will cancel this feature.
210 UNDERSTANDING YOUR INSTRUMENT PANEL

Changing Tape Direction
If you wish to change the direction of tape travel (side
being played), press Preset 6. The lighted arrow in the
display window will show the new direction.
Metal Tape Selection
If a standard metal tape is inserted into the player, the
player will automatically select the correct equalization.
Pinch Roller Release
If ignition power or the radio ON/OFF switch is turned
off, the pinch roller will automatically retract to protect
the tape from any damage. When power is restored to the
tape player, the pinch roller will automatically reengage
and the tape will resume play.
Noise Reduction
The Dolby Noise Reduction System* is on whenever the
tape player is on, but may be switched off.
To turn off the Dolby Noise Reduction System: Press
Preset 1 after you insert the tape. The NR light in the
display will go off when the Dolby System is off.
* ºDolbyº noise reduction is manufactured under license
from Dolby Laboratories Licensing Corporation. Dolby
and the double-D symbol are trademarks of Dolby Labo-
ratories Licensing Corporation.
UNDERSTANDING YOUR INSTRUMENT PANEL 239
4

the worldwide standard for time. This makes the sys-
tem's clock very accurate once the appropriate time zone
and daylight savings information is set.
1. At theMain Menuscreen, highlight ªClock Setupº
and press ENTERORpress and hold for three seconds
the TIME button on the unit's faceplate. TheClock Setup
screen appears.2. To show the GPS clock, select ªDisplayed Clock: GPS
Clockº and press ENTER.
3. To adjust the time zone, Select ªTime Zoneº and press
ENTER. Select the appropriate time zone and press
ENTER.
4. To turn daylight savings on or off, select ªDaylight
Savingsº and press ENTER. Select ªOnº or ªOffº and
press ENTER.
5. Select DONE to exit from the clock setting mode. Press
ENTER to save your changes. If you press CANCEL or
NAV then your changes will not be saved.
UNDERSTANDING YOUR INSTRUMENT PANEL 249
4

User Defined Clock
If you wish to set the clock to a time different than the
system clock, you can manually adjust the time by
choosing the ªUser Defined Clockº option.
1. At theClock Setupscreen highlight ªDisplayed
Clock: User Defined Clockº.2. To increase the clock by hours, make sure ªHR +º is
highlighted and press ENTER. Press ENTER again to
increase the clock by another hour. You will see on the
ªUser Defined Timeº display the number of hours you
have increased the clock by.
3. To decrease the clock by one hour, use the Select
Encoder to highlight the ª-º sign. Press ENTER. Press
ENTER again to decrease the clock by another hour.
4. To increase the clock by minutes, make sure ªMIN +º
is highlighted and press ENTER. Press ENTER again to
increase the clock by another minute.
5. To decrease the clock by minutes, use the Select
Encoder to highlight the ª-ª sign. Press ENTER. Press
ENTER again to decrease the clock by another minute.
6. Select ªDONEº to exit from the clock setting mode.
Press ENTER to save your changes. If you press CAN-
CEL or NAV then your changes will not be saved.
250 UNDERSTANDING YOUR INSTRUMENT PANEL

CASSETTE TAPE AND PLAYER MAINTENANCE
To keep the cassette tapes and player in good condition,
take the following precautions:
1. Do not use cassette tapes longer than C-90; otherwise,
sound quality and tape durability will be greatly dimin-
ished.
2. Keep the cassette tape in its case to protect from
slackness and dust when it is not in use.
3. Keep the cassette tape away from direct sunlight, heat
and magnetic fields such as the radio speakers.
4. Before inserting a tape, make sure that the label is
adhering flatly to the cassette.
5. A loose tape should be corrected before use. To rewind
a loose tape, insert the eraser end of a pencil into the tape
drive gear and twist the pencil in the required direction.Maintain your cassette tape player. The head and capstan
shaft in the cassette player can pick up dirt or tape
deposits each time a cassette is played. The result of
deposits on the capstan shaft may cause the tape to wrap
around and become lodged in the tape transport. The
other adverse condition is low or ªmuddyº sound from
one or both channels, as if the treble tone control were
turned all the way down. To prevent this, you should
periodically clean the head with a commercially available
wet cleaning cassette.
As preventive maintenance, clean the head about every
30 hours of use. If you wait until the head becomes very
dirty (noticeably poor sound), it may not be possible to
remove all deposits with a simple wet cleaning cassette.
UNDERSTANDING YOUR INSTRUMENT PANEL 257
4

COMPACT DISC MAINTENANCE
To keep the compact discs in good condition, take the
following precautions:
1. Handle the disc by its edge; avoid touching the
surface.
2. If the disc is stained, clean the surface with a soft cloth,
wiping from center to edge.
3. Do not apply paper or tape to the disc; avoid scratch-
ing the disc.
4. Do not use solvents such as benzene, thinner, cleaners,
or antistatic sprays.
5. Store the disc in its case after playing.
6. Do not expose the disc to direct sunlight.
7. Do not store the disc where temperatures may become
too high.NOTE:If you experience difficulty in playing a particu-
lar disc, it may be damaged, oversized, or have theft
protection encoding. Try a known good disc before
considering disc player service.
RADIO OPERATION AND CELLULAR PHONES
Under certain conditions, the operation of a cellular
phone in your vehicle can cause erratic or noisy perfor-
mance from your radio. This condition may be lessened
or eliminated by relocating the cellular phone antenna.
This condition is not harmful to the radio. If your radio
performance does not satisfactorily ªclearº by the repo-
sitioning of the antenna, it is recommended that the radio
volume be turned down or off during cellular phone
operation.
258 UNDERSTANDING YOUR INSTRUMENT PANEL

Blower Control
The rotary knob on the left of the
control panel is the blower control.
Turn the knob clockwise to one of the
four positions to obtain the blower
speed you desire. To turn the blower
off, turn the knob to the far left posi-
tion.
Temperature Control
The rotary knob at the center of the
control panel controls the temperature
of the interior air. You can choose your
degree of comfort by rotating the
knob. The coldest temperature setting
is to the extreme left (blue region) and
the warmest setting is to the extreme
right (red region) of the rotation.
Air Conditioning and Heating Ð If Equipped
Air Conditioning Operation
To turn on the Air Conditioning, set the fan
control at any speed and press the snowflake
button located at the right of the control panel.
Conditioned air will be directed through the
outlets selected by the mode control. A light in the snow-
flake button shows that the air conditioning is on. Press the
button a second time to turn the air conditioning off.
Air Conditioning And Heating
UNDERSTANDING YOUR INSTRUMENT PANEL 261
4