ignition RAM CHASSIS CAB 2007 Workshop Manual

that the anti-lock portion of the brake system is not
functioning and that service is required. See your autho-
rized dealer immediately. The ABS light could also
illuminate during loss of traction and remain illuminated
until the brake pedal is pressed.
20. Electronic Throttle Control (ETC)
This light informs you of a problem with the
Electronic Throttle Control system. If a prob-
lem is detected the light will come on while the
engine is running. If the light remains lit with
the engine running your vehicle will usually be drivable,
however, see your dealer for service as soon as possible.
If the light is flashing when the engine is running,
immediate service is required and you may experience
reduced performance, an elevated/rough idle or engine
stall and your vehicle may require towing. The light will
come on when the ignition is first turned on and remain on for 15 seconds as a bulb check. If the light does not
come on during starting, have the system checked by an
authorized dealer.
21. SERV 4WD Indicator
The 4WD indicator will be illuminated whenever the
4WD mode is engaged for either the manual or electric
shift 4WD systems. The SERV 4WD indicator monitors
the electric shift 4WD system. If the SERV 4WD light
stays on or comes on during driving, it means that the
4WD system is not functioning properly and that service
is required.
22. Front Fog Light Indicator — If Equipped
This light shows when the front fog lights are ON.178 UNDERSTANDING YOUR INSTRUMENT PANEL

23. Water In Fuel Indicator—Diesel Only
Indicates there is water detected in the fuel
filter. Refer to the Maintenance section, Drain-
ing Fuel/Water Separator Filter, for water
drain procedure. (See page 410 for more infor-
mation.)
24. Low Washer Fluid Light
This light comes on when the washer fluid level falls
below approximately 1/4 full. The light will remain on
until fluid is added and ignition switch is cycled.
25. Transmission Oil Temperature Warning Light
(Automatic Transmissions Only)
This light indicates that there is excessive trans-
mission fluid temperature that might occur
with severe usage such as trailer towing. It may
also occur when operating the vehicle in a high
torque converter slip condition, such as 4-wheel-drive
operation (e.g. snow plowing, off- road operation). If this light comes on, stop the vehicle and run the engine at idle
or faster, with the transmission in NEUTRAL until the
light goes off.
26. Wait To Start Indicator—Diesel Only
The Wait To Start Indicator will illuminate when
the ignition is turned to the run position and the
ambient temperature is below 66 degrees F. Follow
engine starting procedure for proper engine starting and
operating. Wait until the Wait To Start Indicator turns
OFF then start the vehicle.
27. Odometer/Trip Odometer Button
Press this button to toggle between the odometer and the
trip odometer display. Holding the button in resets the
trip odometer reading when in trip mode.
28. Fuel Gauge
Shows level of fuel in tank when ignition switch is in the
ON position. UNDERSTANDING YOUR INSTRUMENT PANEL 179
4

29. Low Fuel Warning Light
Glows when the pointer is between “E” and 1/8
indication mark (approximately 15% of tank vol-
ume) on the fuel gauge. When the fuel gauge
pointer is on “E” (equivalent to Distance To Empty [DTE]
= 0 on the overhead console if so equipped) there is
reserve fuel capacity, which corresponds to approxi-
mately 8% of tank volume. This reserve capacity was put
in place to prevent the likelihood of customers running
out of fuel when operating at maximum load conditions
in areas where there aren’t many gas stations. (See page
136 for more information.)
Ram fuel tank volumes are as follows:
• 52 gallons - Standard Rear Tank
• 22 gallons - Optional Mid Ship Tank 30. Door Ajar
The Door Ajar light will illuminate when any door is
opened. When the ignition is ON the Door Ajar light will
stay illuminated until the open door is closed. When the
ignition is OFF the Door Ajar light will stay illuminated
until the open door is closed or the battery saver feature
automatically turns the light off.
31. CRUISE Light
This indicator lights when the electronic speed control
system is turned on.
ELECTRONIC DIGITAL CLOCK
The clock and radio each use the display panel built into
the radio. A digital readout shows the frequency and/or
time in hours and minutes (depending on your radio
model) whenever the ignition switch is in the “ON” or
“ACC” position.180 UNDERSTANDING YOUR INSTRUMENT PANEL

When the ignition switch is in the “OFF” position, or
when the radio frequency is being displayed, time keep-
ing is accurately maintained.
On the RAQ radio the time button alternates the location
of the time and frequency on the display. On the REF only
one of the two, time or frequency is displayed at a time.
Clock Setting Procedure
1. Press and hold the time button until the hours blink.
2. Adjust the hours by turning the right side Tune /
Audio control.
3. After the hours are adjusted, press the right side Tune
/ Audio control to set the minutes.
4. Adjust the minutes using the right side Tune / Audio
control.
5. To exit, press any button/knob or wait approximately
5 seconds. RADIO GENERAL INFORMATION
Radio Broadcast Signals
Your new radio will provide excellent reception under
most operating conditions. Like any system, however, car
radios have performance limitations, due to mobile op-
eration and natural phenomena, which might lead you to
believe your sound system is malfunctioning. To help
you understand and save you concern about these “ap-
parent” malfunctions, you must understand a point or
two about the transmission and reception of radio sig-
nals.
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. UNDERSTANDING YOUR INSTRUMENT PANEL 181
4

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.
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 6 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.
SALES CODE REF — AM/FM/CD (SINGLE DISC)
RADIO WITH OPTIONAL SATELLITE RADIO AND
HANDS FREE PHONE CAPABILITY
NOTE: The radio sales code is located on the lower right
side of your radio faceplate.182 UNDERSTANDING YOUR INSTRUMENT PANEL

Operating Instructions - Radio Mode
NOTE: The ignition switch must be in the ON or ACC
position to operate the radio.
Power Switch/Volume Control (Rotary)
Press the ON/VOL control to turn the radio ON. Press
the ON/VOL a second time to turn OFF the radio.
Electronic Volume Control
The electronic volume control turns continuously (360
degrees) in either direction without stopping. Turning the
volume control to the right increases the volume and to
the left decreases it.
When the audio system is turned on, the sound will be
set at the same volume level as last played.
For your convenience, the volume can be turned down,
but not up, when the audio system is off and the ignition
is ON.REF Radio UNDERSTANDING YOUR INSTRUMENT PANEL 183
4

Mode Button (Radio Mode)
Press the mode button repeatedly to select between the
CD player and Satellite Radio (if equipped).
SEEK Button (Radio Mode)
Press and release the SEEK button to search for the next
listenable station in either AM/FM or Satellite (if
equipped) mode. Press the right side of the button to seek
up and the left side to seek down. The radio will remain
tuned to the new station until you make another selec-
tion. Holding the button will bypass stations without
stopping until you release it.
MUTE Button (Radio Mode)
Press the MUTE button to cancel the sound from the
speakers.  MUTE  will display. Press the MUTE button a
second time and the sound from the speakers will return.
Rotating the volume control, turning the radio ON/OFF,
or turning ON/OFF the ignition, will cancel the MUTE
feature. NOTE: In Hands Free Phone (if equipped) mode, the
MUTE button mutes the microphone.
SCAN Button (Radio Mode)
Pressing the SCAN button causes the tuner to search for
the next listenable station in either, AM, FM, or Satellite
(if equipped) frequencies, pausing for 5 seconds at each
listenable station before continuing to the next. To stop
the search, press SCAN a second time.
PSCAN Button (Radio Mode)
Pressing the PSCAN button causes the tuner to scan
through preset stations in either, AM, FM, or Satellite (if
equipped) frequencies, pausing for 5 seconds at each
preset station before continuing to the next. To stop the
search, press PSCAN a second time.
Time Button
Press the time button and the time of day will display for
5 seconds.184 UNDERSTANDING YOUR INSTRUMENT PANEL

Operation Instructions - CD Mode
NOTE: The ignition switch must be in the ON or ACC
position to operate the radio.
Inserting The Compact Disc (Single CD Player)
Gently insert one CD into the CD player with the CD
label facing up. The CD will automatically be pulled into
the CD Player and the CD icon will illuminate on the
radio display.
If the volume control is ON, the unit will switch to CD
mode and begin to play. The display will show the track
number and play time in minutes and seconds. Play will
begin at the start of track one.
NOTE:
• On some vehicles, you may insert or eject a disc with
the radio or ignition switch OFF. • If you insert a disc with the ignition ON and the radio
OFF, the CD will automatically be pulled into the CD
Player.
• This radio does not play discs with MP3 tracks.
SEEK Button (CD Mode)
Press the right side of the SEEK button for the next track
on the CD. Press the left side of the button to return to the
beginning of the current track, or return to the beginning
of the previous track if the CD is within the first 10
seconds of the current selection.
MUTE Button (CD Mode)
Press the MUTE button to cancel the sound from the
speakers.  MUTE  will display. Press the MUTE button a
second time and the sound from the speakers will return.
Rotating the volume control or turning OFF the ignition
will also return the sound from the speakers. UNDERSTANDING YOUR INSTRUMENT PANEL 187
4

Operation Instructions - Auxiliary Mode
The auxiliary (AUX) jack is an audio input jack, which
allows the user to plug in a portable device such as an
MP3 player, cassette player, or microphone and utilize
the vehicle’s audio system to amplify the source and play
through the vehicle speakers.
The auxiliary mode becomes active when an electrical
device is plugged into the AUX jack using a standard 3.5
mm stereo audio cable and the user presses and releases
the MODE button until AUX appears on the display.
NOTE: The radio will return to the last stored mode if
the ignition switch is turned from the OFF/LOCK posi-
tion to the ACC position, the radio is turned on, and the
radio was previously in the AUX mode.
SEEK Button (Auxiliary Mode)
No function. MUTE Button (Auxiliary Mode)
Press the MUTE button to cancel the sound from the
speakers.  MUTE  will display. Press the MUTE button a
second time and the sound from the speakers will return.
Rotating the volume control or turning OFF the ignition
will also return the sound from the speakers.
SCAN Button (Auxiliary Mode)
No function.
EJECT Button (Auxiliary Mode)
No function.
PSCAN Button (Auxiliary Mode)
No function. UNDERSTANDING YOUR INSTRUMENT PANEL 189
4

Operating Instructions - Radio Mode
NOTE: The ignition switch must be in the ON or ACC
position to operate the radio. Power Switch/Volume Control (Rotary)
Press the ON/VOL control to turn the radio ON. Press
the ON/VOL a second time to turn OFF the radio.
Electronic Volume Control
The electronic volume control turns continuously (360
degrees) in either direction without stopping. Turning the
volume control to the right increases the volume and to
the left decreases it.
When the audio system is turned on, the sound will be
set at the same volume level as last played.
For your convenience, the volume can be turned down,
but not up, when the audio system is off and the ignition
is ON.
Mode Button (Radio Mode)
Press the mode button repeatedly to select between the
CD player, Satellite Radio, or Vehicle Entertainment
System (VES) (if equipped).RAQ Radio UNDERSTANDING YOUR INSTRUMENT PANEL 191
4