2010 DODGE GRAND CARAVAN Owners Manual

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

NOTE:
•It is not necessary to move the temperature settings for
cold or hot vehicles. The system automatically adjusts
the temperature, mode and fan speed to provide
comfort as quickly as possible.
•The temperature can be displayed in English or Metric
units by selecting the “Display Units of Measure in”
customer-programmable feature. Refer to the “Elec-
tronic Vehicle Information Center (EVIC) — Customer-
Programmable Features” in this Section.
Rear Blower Control
The rear blower control knob can be manually set to off,
or any fixed blower speed, by rotating the knob from low
to high. This allows the rear seat occupants to control the
volume of air circulated in the rear of the vehicle.
CAUTION!
Interior air enters the Rear Automatic Temperature
Control System through an intake grille, located in
the right side trim panel behind the third row seats.
The heater outlets are located in the right side trim
panel, just behind the sliding door. Do not block or
place objects directly in front of the inlet grille or
heater outlets. The electrical system could overload
causing damage to the blower motor.
Rear Temperature Control
To change the temperature in the rear of the vehicle,
rotate the temperature knob counterclockwise to lower
the temperature, and clockwise to increase the tempera-
ture. The REAR temperature settings are displayed in the
front upper ATC panel.
When rear controls are locked by the front system, the
LOCK symbol on the temperature knob is illuminated
and any rear overhead adjustments are ignored.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 313

Rear Mode Control
Auto Mode
The rear system automatically maintains the correct
mode and comfort level desired by the rear seat occu-
pants.
Headliner ModeAir comes from the outlets in the headliner. Each of
these outlets can be individually adjusted to direct
the flow of air. Moving the air vanes of the outlets to one
side will shut off the airflow.
Bi-Level Mode Air comes from both the headliner outlets and the
floor outlets.
NOTE: In many temperature positions, the BI-LEVEL
mode is designed to provide cooler air out of the head-
liner outlets and warmer air from the floor outlets. Floor Mode
Air comes from the floor outlets.
Summer Operation
The engine cooling system in air conditioned vehicles
must be protected with a high-quality antifreeze coolant
to provide proper corrosion protection and to protect
against engine overheating. A solution of 50% ethylene
glycol antifreeze coolant and 50% water is recommended.
Refer to “Maintenance Procedures” in “Maintaining Your
Vehicle” for proper coolant selection.
314 UNDERSTANDING YOUR INSTRUMENT PANEL

Winter Operation
To ensure the best possible heater and defroster perfor-
mance, make sure the engine cooling system is function-
ing properly and the proper amount, type, and concen-
tration of coolant is used. Refer to “Maintenance
Procedures” in “Maintaining Your Vehicle” for proper
coolant selection. Use of the air RECIRCULATION mode
during Winter months is not recommended, because it
may cause window fogging.
Vacation/Storage
Before you store your vehicle, or keep it out of service
(i.e., vacation) for two weeks or more, run the air
conditioning system at idle for about five minutes, in
fresh air with the blower setting on high. This will ensure
adequate system lubrication to minimize the possibility
of compressor damage when the system is started again.
Window Fogging
Vehicle windows tend to fog on the inside in mild, rainy
and/or humid weather. To clear the windows, select
DEFROST or MIX mode and increase the front blower
speed. Do not use the RECIRCULATION mode without
A/C for long periods, as fogging may occur.
Outside Air Intake
Make sure the air intake, located directly in front of the
windshield, is free of obstructions such as leaves. Leaves
collected in the air intake may reduce airflow, and if they
enter the plenum they could plug the water drains. In
Winter months make sure the air intake is clear of ice,
slush and snow.4
UNDERSTANDING YOUR INSTRUMENT PANEL 315

Operating TipsA/C Air Filter— If Equipped
On vehicles equipped with Automatic Temperature Con-
trol (ATC), the climate control system filters out dust and
pollen from the air. Refer to “Air Conditioning” in
“Maintaining Your Vehicle” for filter replacement
instructions.
316 UNDERSTANDING YOUR INSTRUMENT PANEL

STARTING AND OPERATING
CONTENTS
Starting Procedures .................... 321
▫ Automatic Transmission ............... 321
▫ Normal Starting ..................... 321
▫ Extreme Cold Weather
(Below 20°F Or –29°C) ............... 322
▫ If The Engine Fails To Start ............. 322
▫ After Starting ....................... 323
 Engine Block Heater — If Equipped ........ 323
Automatic Transmission ................. 324
▫ Key Ignition Park Interlock ............. 324
▫ Brake/Transmission Interlock System ...... 325
▫ Four-Speed Or Six-Speed Automatic
Transmission ....................... 325
▫ Gear Ranges ........................ 326
 Driving On Slippery Surfaces ............. 332
▫ Acceleration ........................ 332
▫ Traction ........................... 332
5

Driving Through Water ................. 333
▫ Flowing/Rising Water ................. 333
▫ Shallow Standing Water ............... 333
 Power Steering ....................... 335
▫ Power Steering Fluid Check ............. 335
 Parking Brake ........................ 336
 Anti-Lock Brake System (ABS) ............ 338
▫ Anti-Lock Brake Warning Light .......... 340
 Electronic Brake Control System ........... 341
▫ Traction Control System (TCS) ........... 341
▫ Brake Assist System (BAS) .............. 342
▫ Electronic Stability Program (ESP) ........ 343
▫ ESP/BAS Warning Light ............... 344 
Tire Safety Information ................. 345
▫ Tire Markings ....................... 345
▫ Tire Identification Number (TIN) ......... 349
▫ Tire Terminology And Definitions ......... 350
▫ Tire Loading And Tire Pressure .......... 351
 Tires — General Information ............. 355
▫ Tire Pressure ....................... 355
▫ Tire Inflation Pressures ................ 356
▫ Tire Pressures For High-Speed Operation . . . 357
▫ Radial-Ply Tires ..................... 358
▫ Compact Spare Tire ................... 358
▫ Tire Spinning ....................... 359
▫ Tread Wear Indicators ................. 360
318 STARTING AND OPERATING

▫Life Of Tire ........................ 361
▫ Replacement Tires .................... 361
 Snow Tires .......................... 363
 Tire Rotation Recommendations ........... 363
 Tire Pressure Monitor System (TPMS) ....... 364
▫ Base System ........................ 366
▫ Premium System – If Equipped .......... 368
 Fuel Requirements ..................... 372
▫ 3.3L And 3.8L Engine ................. 372
▫ 4.0L Engine ........................ 373
▫ Reformulated Gasoline ................ 373
▫ Gasoline/Oxygenate Blends ............. 374
▫ E85 Usage In Non-Flex Fuel Vehicles ...... 374▫
MMT In Gasoline .................... 375
▫ Materials Added To Fuel ............... 375
▫ Fuel System Cautions ................. 376
▫ Carbon Monoxide Warnings ............ 377
 Flexible Fuel (3.3L Engine Only) —
If Equipped .......................... 377
▫ E85 General Information ............... 377
▫ Ethanol Fuel (E85) ................... 379
▫ Fuel Requirements ................... 379
▫ Selection Of Engine Oil For Flexible Fuel
Vehicles E85 And Gasoline Vehicles ....... 380
▫ Starting ........................... 380
▫ Cruising Range ...................... 380
▫ Replacement Parts ................... 381
5
STARTING AND OPERATING 319