2009 DODGE GRAND CARAVAN heating

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.
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 Section 7 of this
manual for proper coolant selection. 322 UNDERSTANDING YOUR INSTRUMENT PANEL

DRIVE — Six-Speed TransaxleThis range should be used for most city and highway
driving. It provides the smoothest upshifts, downshifts,
and best fuel economy. However, use the Electronic
Range Select (ERS) mode by moving the lever — / + and
select the “5” range when frequent transaxle shifting
occurs while using the DRIVE range, such as when
operating the vehicle under heavy loading conditions,
(i.e., in hilly terrain, traveling into strong head winds or
while towing heavy trailers). Under these conditions,
using the “5” range will improve performance and
extend transaxle life by reducing excessive shifting and
heat buildup.
DRIVE — Four-Speed Transaxle
This range should be used for most city and highway
driving. It provides the smoothest upshifts, downshifts,
and best fuel economy. However, select the “3” range
when frequent transaxle shifting occurs while using the
DRIVE range, such as when operating the vehicle under
heavy loading conditions, (i.e., in hilly terrain, traveling
into strong head winds or while towing heavy trailers).
Under these conditions, using the “3” range will improve
performance and extend transaxle life by reducing exces-
sive shifting and heat buildup. CAUTION!
If the transaxle operating temperature exceeds ac-
ceptable limits, the vehicle computer will override
DRIVE and select “5” range (on six-speed transaxles)
or “3” range (on four-speed transaxles) by changing
shift points. This is done to prevent transaxle damage
due to overheating.
Electronic Range Select (ERS) Operation
The Electronic Range Select (ERS) shift control allows
you to move the shift lever to the left (-) or right (+) when
the shift lever is in the DRIVE position, this allows the
selection of the desired top gear. For example, if you shift
336 STARTING AND OPERATING

Before leaving the vehicle, make sure that the parking
brake is fully applied and place the shift lever in the
PARK position. To release the parking brake, press the
emergency brake pedal a second time and let your foot
up as you feel the brake disengage.Be sure the parking brake is firmly set when parked and
the shift lever is in the PARK position. When parking on
a hill, you should apply the parking brake before placing
the shift lever in PARK, otherwise the load on the
transaxle locking mechanism may make it difficult to
move the shift lever out of PARK. WARNING!

Always fully apply the parking brake when leav-
ing your vehicle, or it may roll and cause damage
or injury. Also be certain to leave the transaxle in
PARK. Failure to do so may allow the vehicle to
roll and cause damage or injury.
Be sure the parking brake is fully disengaged
before driving. Failure to do so can lead to brake
problems due to excessive heating of the rear
brakes. (Continued)Parking Brake
344 ST

ARTING AND OPERATING

WARNING!Overloading of your tires is dangerous. Overloading
can cause tire failure, affect vehicle handling, and
increase your stopping distance. Use tires of the
recommended load capacity for your vehicle. Never
overload them.
TIRES — GENERAL INFORMATION
Tire Pressure
Proper tire inflation pressure is essential to the safe and
satisfactory operation of your vehicle. Three primary
areas are affected by improper tire pressure.
Safety
WARNING!

Improperly inflated tires are dangerous and can
cause accidents.
Under-inflation increases tire flexing and can re-
sult in over-heating and tire failure.
Over-inflation reduces a tire’s ability to cushion
shock. Objects on the road and chuckholes can
cause damage that result in tire failure.
Unequal tire pressures can cause steering prob-
lems. You could lose control of your vehicle.
Over-inflated or under-inflated tires can affect
vehicle handling and can fail suddenly, resulting
in loss of vehicle control. (Continued)
360 STARTING AND OPERATING

Cooling SystemTo reduce potential for engine and transaxle overheating,
take the following actions:
City Driving
When stopped for short periods of time, put the shift
lever in NEUTRAL but do not increase engine idle speed.
Highway Driving
Reduce speed.
Air Conditioning
Turn off temporarily.
RECREATIONAL TOWING (BEHIND
MOTORHOME, ETC.) CAUTION!
Towing this vehicle behind another vehicle (flat-
towing with all four wheels on the ground) is not
recommended.
NOTE: If the vehicle requires towing, make sure all four
wheels are off the ground.
408 STARTING AND OPERATING

HAZARD WARNING FLASHERThe Hazard Warning flasher switch is located in the
center of the instrument panel above the radio.
Press the switch to turn on the Hazard Warning
flasher. When the switch is activated, all directional
turn signals will flash on and off to warn oncoming
traffic of an emergency. Press the switch a second time to
turn off the Hazard Warning flasher.
This is an emergency warning system and should not be
used when the vehicle is in motion. Use it when your
vehicle is disabled and is creating a safety hazard for
other motorists.
When you must leave the vehicle to seek assistance, the
Hazard Warning flasher will continue to operate even
though the ignition switch is OFF.
NOTE: With extended use, the Hazard Warning flasher
may wear down your battery.
IF YOUR ENGINE OVERHEATS
In any of the following situations, you can reduce the
potential for overheating by taking the appropriate action.
On the highways — Slow down.
In city traffic — While stopped, shift the transmission
shift lever into NEUTRAL, but do not increase engine
idle speed.
NOTE: There are steps that you can take to slow down
an impending overheat condition:
If your air conditioner (A/C) is on, turn it off. The A/C
system adds heat to the engine cooling system and
turning the A/C can help remove this heat.
You can also turn the Temperature Control to maxi-
mum heat, the Mode Control to floor and the Fan
Control to high. This allows the heater core to act as a
supplement to the radiator and aids in removing heat
from the engine cooling system. 410 WHAT TO DO IN EMERGENCIES

FREEING A STUCK VEHICLEIf your vehicle becomes stuck in mud, sand or snow, it
can often be moved by a rocking motion. Turn your
steering wheel right and left to clear the area around the
front wheels. Then move the shift lever back and forth
between REVERSE and DRIVE. Using minimal accelera-
tor pedal pressure to maintain the rocking motion, with-
out spinning the wheels, is most effective.
WARNING!
Fast spinning tires can be dangerous. Forces gener-
ated by excessive wheel speeds may cause tire dam-
age or failure. A tire could explode and injure some-
one. Do not spin your vehicle’s wheels faster than
35 mph (55 km/h) when you are stuck. Do not let
anyone near a spinning wheel, no matter what the
speed. CAUTION!
Revving the engine or spinning the wheels too fast
may lead to transmission overheating and failure. It
can also damage the tires. Do not spin the wheels
above 35 mph (55 km/h).
TOWING A DISABLED VEHICLE
Towing With The Ignition Key
Your vehicle may be towed under the following condi-
tions:
The shift lever must be in NEUTRAL.
The distance to be traveled must not exceed 100 miles
(160 km).
The towing speed must not exceed 44 mph (72 km/h).
WHAT TO DO IN EMERGENCIES 427
6

CAUTION!Damage to the catalytic converter can result if your
vehicle is not kept in proper operating condition. In
the event of engine malfunction, particularly involv-
ing engine misfire or other apparent loss of perfor-
mance, have your vehicle serviced promptly. Contin-
ued operation of your vehicle with a severe
malfunction could cause the converter to overheat,
resulting in possible damage to the converter and the
vehicle.
NOTE: Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you. WARNING!A hot exhaust system can start a fire if you park over
materials that can burn. Such materials might be
grass or leaves coming into contact with your exhaust
system. Do not park or operate your vehicle in areas
where your exhaust system can contact anything that
can burn.
In unusual situations involving grossly malfunctioning
engine operation, a scorching odor may indicate severe
and abnormal catalyst overheating. If this occurs, the
vehicle should be stopped, the engine shut OFF and the
vehicle allowed to cool. Thereafter, service, including a
tune-up to manufacturer’s specifications, should be ob-
tained immediately.
444 MAINTAINING YOUR VEHICLE