Dodge 2010 Grand Caravan - Manual (Page 313)

The Rear ATC System is located in the headliner, near the
center of the vehicle. 1. Press the REAR LOCK button on the front lower ATC
panel. This turns off the REAR LOCK icon in the rear
temperature knob.
2. Rotate the Rear Blower, Rear Temperature and the
Rear Mode Control knobs to suit your comfort needs.
3. ATC is selected by adjusting the rear blower knob
counterclockwise to AUTO.
Once the desired temperature is displayed, the ATC
System will automatically achieve and maintain that
comfort level. When the system is set up for your comfort
level, it is not necessary to change the settings. You will
experience the greatest efficiency by simply allowing the
system to function automatically.
Rear ATC Control Features
1 - Blower Speed 3 - Rear ATC Lock
2 - Rear Temperature 4 - Rear MODE
312 UNDERSTANDING YOUR INSTRUMENT PANEL