2007 Ram 2500 (Diesel) heating

WARNING!
Be certain that the seatback is securely locked into
position. If the seatback in not securely locked into
position the seat will not provide the proper stability
for child seats and/or passengers. An improperly
latched seat could cause serious injury.
Heated Seats — If Equipped
The heated seat switches are located in the instrument
panel under the climate controls.
Each heated seat switch has two settings (HI and LOW).
Press the switch once to obtain High heat level, then
press the switch again to obtain Low heat level. Pressing
the switch a third time will turn the heated seats OFF. If
you do not purposefully turn the switch OFF, the seat
heating level will automatically change to the next lower
Heated Seat Switches
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 125
3

8. Return to the vehicle and firmlypress, hold for two
seconds and releasethe programmed HomeLink button.
Repeat thepress/hold/releasesequence a second time,
and, depending on the brand of the garage door opener
(or other rolling code equipped device), repeat this
sequence a third time to complete the programming.
HomeLink should now activate your rolling code
equipped device.
NOTE:To program the remaining two HomeLink but-
tons, begin withProgrammingstep two. Do not repeat
step one. For questions or comments, please contact
HomeLink atwww.homelink.com or 1-800-355-3515.
Canadian Programming/Gate Programming
Canadian radio-frequency laws require transmitter sig-
nals totime-out(or quit) after several seconds of
transmission which may not be long enough for
HomeLink to pick up the signal during programming.Similar to this Canadian law, some U.S. gate operators are
designed totime-outin the same manner.
If you live in Canada or you are having difficulties
programming a gate operator by using theProgram-
mingprocedures (regardless of where you live),replace
Programming HomeLinkstep 3with the following:
NOTE:If programming a garage door opener or gate
operator, it is advised to unplug the device during the
cyclingprocess to prevent possible overheating.
3. Continue to press and hold the HomeLink button
while youpress and release every two seconds(cycle)
your hand-held transmitter until the frequency signal has
successfully been accepted by HomeLink. (The indicator
light will flash slowly and then rapidly.) Proceed with
Programmingstep four to complete.
164 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

▫PTY ButtonSeek.....................252
▫Satellite Antenna......................252
▫Reception Quality.....................253

Remote Sound System Controls —
If Equipped...........................253
▫Radio Operation......................254
▫Tape Player.........................254
▫CD Player..........................254

Cassette Tape And Player Maintenance.......255

Compact Disc Maintenance................256
Radio Operation And Cellular Phones........256

Climate Controls.......................257
▫Heater Only — If Equipped..............257
▫Air Conditioning And Heating
— If Equipped.......................259
▫Air Conditioning With Dual Zone Temperature
Control — If Equipped.................262
▫Operating Tips.......................267
▫Operating Tips Chart...................269
194 UNDERSTANDING YOUR INSTRUMENT PANEL

CLIMATE CONTROLS
The controls for the heating and ventilation system in this
vehicle consist of a series of rotary knobs. These comfort
controls can be set to obtain desired interior conditions.
Heater Only — If Equipped
The mode control (at the right of the
control panel) can be set in any of the
following positions:
Climate Control Location
Manual Heating Controls
UNDERSTANDING YOUR INSTRUMENT PANEL 257
4

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 — 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
Air Conditioning And Heating
UNDERSTANDING YOUR INSTRUMENT PANEL 259
4

Air Conditioning and Heating Operation
To turn on the Air Conditioning, set the fan control at any
speed and press the snowflake button located on the
control panel. Conditioned air will be directed through
the outlets selected by the mode control. A light in the
snowflake button shows that the air conditioning is on.
Press the button a second time to turn the air condition-
ing off.
A/C Pushbutton
With the fan control in the ON posi-
tion, pushing the A/C button turns on
the air conditioning compressor. An
indicator light on the button shows
that the Air Conditioning compressor
is on. Conditioned air is now directed
through the mode outlets selected.
Pushing the button a second time turns the compressor
OFF.
Recirculation Pushbutton
Pushing the Recirculation button al-
lows interior air to recirculate continu-
ously in any position except defrost
and defrost/floor mode for rapid cool
down of the interior. See “Fast
Cooldown” later in this section.
Mode Control
The mode control allows you to
choose from several patterns of air
distribution.
UNDERSTANDING YOUR INSTRUMENT PANEL 263
4

Summer Operation
Air conditioned vehicles must be protected with a high
quality antifreeze coolant during summer to provide
proper corrosion protection and to raise the boiling point
of the coolant for protection against overheating. A 50 %
concentration is recommended. Refer to Recommended
Fluids and Genuine Parts for the proper coolant type.
When using the air conditioner in extremely heavy traffic
in hot weather especially when towing a trailer, addi-
tional engine cooling may be required. If this situation is
encountered, operate the transmission in a lower gear to
increase engine RPM, coolant flow and fan speed. When
stopped in heavy traffic, it may be necessary to shift into
NEUTRAL and depress the accelerator slightly for fast
idle operation to increase coolant flow and fan speed.NOTE:On models equipped with Diesel engines, the
idle speed will automatically increase to 1000 rpm at
elevated coolant temperatures to improve engine cooling.
Your air conditioning system is also equipped with an
automatic recirculation system. When the system senses
a heavy load or high heat conditions, it may use partial
Recirculation A/C mode to provide additional comfort.
Winter Operation
When operating the system during the winter months,
make sure the air intake, located directly in front of the
windshield, is free of ice, slush, snow, or other obstruc-
tions.
268 UNDERSTANDING YOUR INSTRUMENT PANEL