transmission DODGE GRAND CARAVAN 2006 User Guide

WARNING!It is dangerous to shift the selector lever out of “ P ” or
“ N ” if the engine speed is higher than idle speed. If
your foot is not firmly on the brake pedal, the
vehicle could accelerate quickly forward or in re-
verse. You could lose control of the vehicle and hit
someone or something. Only shift into gear when
the engine is idling normally and when your right
foot is firmly on the brake pedal.
Brake/Transmission Interlock System
This system prevents you from moving the gear shift out
of Park and into any gear unless the brake pedal is
pressed. This system is active only while the ignition
switch is in the ON position. Always depress the brake
pedal first, before moving the gear selector out of PARK. Automatic Transmission Ignition Interlock System
This system prevents the key from being removed unless
the shift lever is in PARK. It also prevents shifting out of
PARK unless the key is in the OFF or ON positions.
NOTE: If a malfunction occurs, the system will trap the
key in the ignition cylinder to warn you that this safety
feature is inoperable. The engine can be started and
stopped but the key cannot be removed until you obtain
service.
Four Speed Automatic Transmission
The electronically controlled transmission provides a
precise shift schedule. The transmission electronics are
self-calibrating; therefore, the first few shifts on a new
vehicle, may be somewhat abrupt. This is a normal
condition, and precision shifts will develop within a few
hundred miles.310 STARTING AND OPERATING

Reset Mode - Electronic Transmission
The transmission is monitored electronically for abnor-
mal conditions. If a condition is detected that could cause
damage, the transmission automatically shifts into sec-
ond gear. The transmission remains in second gear
despite the forward gear selected. Park (P), Reverse (R),
and Neutral (N) will continue to operate. This Reset
feature allows the vehicle to be driven to a dealer for
service without damaging the transmission.
In the event that the problem has been momentary, the
transmission can be reset to regain all forward gears.
• Stop the vehicle and shift into Park (P).
• Turn the key to OFF then restart the engine.
• Shift into the desired range and resume driving.
NOTE: Even if the transmission can be reset, it is
recommended that you visit a dealer at your earliest possible convenience. Your dealer has diagnostic equip-
ment to determine if the problem could recur.
If the transmission cannot be reset, dealer service is
required.
Gear Ranges
DO NOT race the engine
when shifting from PARK
or NEUTRAL positions into
another gear range.
“ P ” Park
Supplements the parking brake by locking the transmis-
sion. The engine can be started in this range. Never
attempt to use PARK while vehicle is in motion.
Apply parking brake when leaving vehicle in this range. Transmission Gear Ranges STARTING AND OPERATING 311
5

“ R ” Reverse
Shift into this range only after the vehicle has come to a
complete stop.
“ N ” Neutral
Engine may be started in this range.
“ D ” Overdrive
For most city and highway driving, it provides smoothest
upshifts and downshifts and best fuel economy. When
frequent transmission shifting occurs while using the
“ D ” Overdrive position, 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), using the “ 3 ” position will improve
performance and extend transmission life by reducing
excessive shifting and heat build-up.
“ 3 ” Drive
This range eliminates shifts into Overdrive. The transmis-
sion will operate normally in First, Second and Third while in this range. The “ 3 ” position should also be used
when descending steep grades to prevent brake system
distress.
NOTE: Using the “ 3 ” range while operating the vehicle
under heavy operating conditions will improve perfor-
mance and extend transmission life by reducing exces-
sive shifting and heat build up.
“ L ” Low
This range should be used for engine braking when
descending very steep grades. In this range, upshifts will
occur only to prevent engine overspeed while downshifts
occur earlier than other gear range selections.
NOTE: The vehicle computer will over ride Overdrive
and “ 3 ” Drive ranges by changing shift points if the
transmission operating temperature exceeds acceptable
limits. This is done to prevent transmission damage due
to overheating.312 STARTING AND OPERATING

PARKING BRAKE
When the parking brake is applied with the ignition
switch on, the brake light in the instrument cluster will
turn on.
NOTE: This light only shows that the parking brake is
applied. It does not show the degree of brake application.
Before leaving the vehicle, make sure that the parking
brake is fully applied and place the gear selector in the
Park position. To release the parking brake, pull out on
the parking brake release located on the left side of the
instrument panel.
When parking on a hill, it is important to set the parking
brake before placing the gear selector in Park, otherwise
the load on the transmission locking mechanism may
make it difficult to move the selector out of park. As an Parking Brake Release STARTING AND OPERATING 313
5

Engine/Transmission GCWR (Gross Com-
bined Wt. Rating) Frontal Area Max. GTW (Gross
Trailer Wt.) Max. Tongue Wt.
2.4L Automatic 5,200 lbs (2358 kg) 40 SQ. FT.
(3.72 square meters) Up to 2 persons &
Luggage 850 lbs
(385 kg) 85 lbs (39 kg)
5,200 lbs (2358 kg) 40 SQ. FT.
(3.72 square meters) 3 to 5 persons &
Luggage 400 lbs
(181 kg) 40 lbs (18 kg)
5,200 lbs (2358 kg) 40 SQ. FT.
(3.72 square meters) 6 to 7 persons &
Luggage Not Recom-
mended N/A354 STARTING AND OPERATING

Engine/Transmission GCWR (Gross Com-
bined Wt. Rating) Frontal Area Max. GTW (Gross
Trailer Wt.) Max. Tongue Wt.
3.3L & 3.8L
Automatic 6,600 lbs (2993 kg) 40 SQ. FT.
(3.72 square meters) Up to 2 persons &
Luggage 1,800 lbs
(816 kg) 180 lbs (82 kg)
6,600 lbs (2993 kg) 40 SQ. FT.
(3.72 square meters) 3 to 5 persons &
Luggage 1,350 lbs
(612 kg) 135 lbs (61 kg)
6,600 lbs (2993 kg) 40 SQ. FT.
(3.72 square meters) 6 to 7 persons &
Luggage 1,000 lbs
(454 kg) 100 lbs (45 kg) STARTING AND OPERATING 355
5

Engine/Transmission GCWR (Gross Com-
bined Wt. Rating) Frontal Area Max. GTW (Gross
Trailer Wt.) Max. Tongue Wt.
3.3L & 3.8L
Automatic with
trailer tow package 8,600 lbs (3900 kg) 40 SQ. FT.
(3.72 square meters) Up to 2 persons &
Luggage 3,800 lbs
(1723 kg)* 380 lbs (172 kg)
8,600 lbs (3900 kg) 40 SQ. FT.
(3.72 square meters) 3 to 5 persons &
Luggage 3,350 lbs
(1519 kg)* 335 lbs (152 kg)
8,600 lbs (3900 kg) 40 SQ. FT.
(3.72 square meters) 6 to 7 persons &
Luggage 3,000 lbs
(1360 kg)* 300 lbs (136 kg)
* For vehicles equipped with Fold-in-Floor seating, the Gross Trailer Weight must be reduced by 100 lbs (45 kg).
Refer to local laws for maximum trailer towing speeds.
NOTE: The trailer tongue weight must be considered as
part of the combined weight of occupants and cargo, and
should never exceed the weight referenced on the Tire
and Loading Information placard. Refer to the Tire –
Safety Information Section in this manual. Trailer and Tongue Weight
Always load a trailer with 60% to 65% of the weight in
the front of the trailer. This places 10% to 15% of the
Gross Trailer Weight (GTW) on the tow hitch of your
vehicle. Loads balanced over the wheels or heavier in the
rear can cause the trailer to sway severely side to side356 STARTING AND OPERATING

Towing Requirements
To promote proper break-in of your new vehicle driv-
etrain components the following guidelines are recom-
mended:
CAUTION!• Avoid towing a trailer for the first 500 miles (805
km) of vehicle operation. Doing so may damage
your vehicle.
• During the first 500 miles (805 km) of trailer
towing, limit your speed to 50 mph (80 km/h).
Perform the maintenance listed in Section 8 of this
manual. When towing a trailer, never exceed the GAWR,
or GCWR, ratings. WARNING!Improper towing can lead to an injury accident.
Follow these guidelines to make your trailer towing
as safe as possible:
Make certain that the load is secured in the trailer
and will not shift during travel. When trailering
cargo that is not fully secured, dynamic load shifts
can occur that may be difficult for the driver to
control. You could lose control of your vehicle and
have an accident.
• When hauling cargo or towing a trailer, do not over-
load your vehicle or trailer. Overloading can cause a
loss of control, poor performance or damage to brakes,
axle, engine, transmission, steering, suspension, chas-
sis structure or tires.358 STARTING AND OPERATING

• Safety chains must always be used between your
vehicle and trailer. Always connect the chains to the
frame or hook retainers of the vehicle hitch. Cross the
chains under the trailer tongue and allow enough
slack for turning corners.
• Vehicles with trailers should not be parked on a grade.
When parking, apply the parking brake on the tow
vehicle. Put the tow vehicle automatic transmission in
P for Park. Always, block or  chock  the trailer wheels.
• GCWR must not be exceeded.
• Total weight must be distributed between the tow
vehicle and the trailer such that the following four
ratings are not exceeded:
1. GVWR
2. GTW
3. GAWR 4. Tongue weight rating for the trailer hitch utilized
(This requirement may limit the ability to always
achieve the 10% to 15% range of tongue weight as a
percentage of total trailer weight).
Towing Requirements — Tires
Do not attempt to tow a trailer while using a compact
spare tire.
Proper tire inflation pressures are essential to the safe
and satisfactory operation of your vehicle. Refer to the
Ti re s – General Information section of this manual on
Tire Pressures for proper tire inflation procedures.
Also, check the trailer tires for proper tire inflation
pressures before trailer usage.
Check for signs of tire wear or visible tire damage
before towing a trailer. Refer to the Tires – General
Information section of this manual on Tread Wear
Indicators for the proper inspection procedure. STARTING AND OPERATING 359
5

Towing Tips
Before setting out on a trip, practice turning, stopping
and backing the trailer in an area away from heavy
traffic. Towing Tips — Automatic Transmission
The “ D ” range can be selected when towing. However, if
frequent shifting occurs while in this range, the “ 3 ” range
should be selected.
NOTE: Using the “ 3 ” range while operating the vehicle
under heavy operating conditions will improve perfor-
mance and extend transmission life by reducing exces-
sive shifting and heat build up. This action will also
provide better engine braking.
The automatic transmission fluid and filter should be
changed if you REGULARLY tow a trailer for more than
45 minutes of continuous operation. See Schedule “ B ” in
section 8 of this manual for transmission fluid change
intervals.
NOTE: Check the automatic transmission fluid level
before towing.7 - Pin Connector362 STARTING AND OPERATING