Jeep 2004 Grand Cherokee Owner's Manual page 168

168 UNDERSTANDING YOUR INSTRUMENT PANEL
level is displayed the system will maintain that level
automatically using the heating system. Should the de-
sired comfort level require air conditioning, the system
will automatically make the adjustment.
You may notice the blower speed getting lower as the
difference between the driver and passenger temperature
settings gets larger. This is an extreme condition and the
airflow may not perform as anticipated.
The temperature can be displayed in U.S. or Metric by
selecting the US/M customer programmable feature.
Refer to the "Overhead Console-Customer Program-
mable Features" in Section 3 of this manual.
The left knob controls the blower fan. Within the AUTO
setting on this control, you can select a HI volume of air
from the blower or a LO volume. Once the system is set
up for your comfort level, it is not necessary to change
the setting. You will experience the greatest efficiency by
simply allowing the system to function automatically.
Manual Operation
However, this system does offer a full complement of
manual override features. There is a manual blower
range used when the AUTO setting is not desired. The
left control can be set to any fixed blower speed by
rotating the knob from LO to HI on the upper portion of
the dial.
The operator can override the AUTO mode setting and
select the direction of the air by rotating the right mode
knob to one of the following positions.
• Defrost
Air is directed to the windshield through the
outlets at the base of the windshield.
• Defrost/Floor
Air flows through the front and rear floor outlets
and the outlets at the base of the windshield.