2009 DODGE NITRO automatic transmission

Overdrive Operation
The overdrive automatic transmission contains an elec-
tronically controlled 5th gear (OVERDRIVE). The trans-
mission will automatically shift from 4th gear to OVER-
DRIVE if the following conditions are present:
•the transmission selector is in DRIVE
•the engine coolant has reached normal operating tem-
perature
•the vehicle speed is above approximately 30 mph
(48 km/h)
•the transmission has reached normal operating
temperature
NOTE:If the vehicle is started in extremely cold tem-
peratures, the transmission may not shift into OVER-
DRIVE and will automatically select the most desirable
gear for operation at this temperature. Normal operation
will resume when the transmission fluid temperature hasrisen to a suitable level. Refer also to the note under
torque converter clutch later in this section.
During cold temperature operation, you may notice
delayed upshifts depending on engine and transmission
temperature. This feature improves the warm up time of
the engine and transmission.
During cold temperature operation, the transmission
may not downshift from 2nd gear to 1st gear after the
initial 1st to 2nd gear upshift.
Transmission Limp Home Mode
Transmission function is monitored for abnormal condi-
tions. If a condition is detected that could result in
transmission damage, the Transmission Limp Home
Mode will be engaged. In this mode, the transmission
will remain in the current gear until the vehicle is
brought to a stop.
STARTING AND OPERATING 273
5

To reset the transmission, use the following procedure:
1. Stop the vehicle.
2. Move the shift lever to the PARK position.
3. Turn OFF the engine and be sure to turn the key to the
LOCK position.
4. Wait approximately 10 seconds, then restart the en-
gine.
5. Move the shift lever to the desired gear range.
If the problem is no longer detected, the transmission will
return to normal operation. If the problem persists,
PARK, REVERSE, and NEUTRAL will continue to oper-
ate. Only 2nd gear range will operate in the DRIVE
position. Have the transmission checked at your autho-
rized dealer as soon as possible.Torque Converter Clutch
A feature designed to improve fuel economy has been
included in the automatic transmission on your vehicle.
A clutch within the torque converter engages automati-
cally at a calibrated speed at light throttle. It engages at
higher speeds under heavier acceleration. This may re-
sult in a slightly different feeling or response during
normal operation in high gear. When the vehicle speed
drops below a calibrated speed, or during acceleration,
the clutch automatically and smoothly disengages. The
feature is operational in OVERDRIVE and in DRIVE.
NOTE:
•The torque converter clutch will not engage until the
transmission fluid and engine coolant are warm (usu-
ally after 1 to 3 miles (1.6 - 4.8 km) of driving). Because
the engine speed is higher when the torque converter
clutch is not engaged, it may seem as if the transmis-
sion is not shifting into OVERDRIVE when cold. This
is normal.
274 STARTING AND OPERATING

Trailer Towing Weights (Maximum Trailer Weight Ratings)
The following chart provides the maximum trailer weight ratings towable for your given drivetrain.
Engine/
TransmissionModel Frontal AreaMax GTW (Gross Trailer
Wt)Tongue Wt. (See Note)
3.7L/Automatic 4x2 32 sq ft (2.97 sq m) 2,000 lbs (907 kg) 200 lbs (91 kg)
3.7L/Automatic 4x4 32 sq ft (2.97 sq m) 2,000 lbs (907 kg) 200 lbs (91 kg)
3.7L/Automatic
w/ Cooler4x2 64 sq ft (5.94 sq m) 3,500 lbs (1 588 kg) 350 lbs (159 kg)
3.7L/Automatic
w/Cooler4x4 64 sq ft (5.94 sq m) 3,500 lbs (1 588 kg) 350 lbs (159 kg)
4.0L/Automatic 4x2 32 sq ft (2.97 sq m) 2,000 lbs (907 kg) 200 lbs (91 kg)
4.0L/Automatic 4x4 32 sq ft (2.97 sq m) 2,000 lbs (907 kg) 200 lbs (91 kg)
4.0L/Automatic
w/ Cooler4x2 64 sq ft (5.94 sq m) 3,500 lbs (1 588 kg) 350 lbs (159 kg)
4.0L/Automatic
w/ Cooler4x4 64 sq ft (5.94 sq m) 3,500 lbs (1 588 kg) 350 lbs (159 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, andshould never exceed the weight referenced on the tire
and loading information placard. Refer to the Tire Safety
Information section in this manual.
342 STARTING AND OPERATING

When Towing Trailers with Gross Trailer Weight (GTW) between 3,500 Lbs (1 588 kg) and 5,000 Lbs
(2 268 kg)
The following chart provides maximum trailer weight ratings towable for the following engine/transmission
combinations,ONLYif using a weight distributing hitch.
Engine/
TransmissionModel Frontal Area Max GTW (Gross Trailer
Wt)Tongue Wt. (See Note)
3.7L/Automatic
w/ Cooler4x2 64 sq ft (5.94 sq m) 5,000 lbs (2 268 kg) 500 lbs (227 kg)
3.7L/Automatic
w/Cooler4x4 64 sq ft (5.94 sq m) 5,000 lbs (2 268 kg) 500 lbs (227 kg)
4.0L/Automatic
w/ Cooler4x2 64 sq ft (5.94 sq m) 5,000 lbs (2 268 kg) 500 lbs (227 kg)
4.0L/Automatic
w/ Cooler4x4 64 sq ft (5.94 sq m) 5,000 lbs (2 268 kg) 500 lbs (227 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, andshould never exceed the weight referenced on the tire
and loading information placard. Refer to the Tire Safety
Information section in this manual.
STARTING AND OPERATING 343
5

Towing Tips
Before setting out on a trip, practice turning, stopping
and backing up 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 TOW/
HAUL button should be selected.
NOTE:Using the TOW/HAUL button (3.7L engine) or
“4” range (4.0L engine) while operating the vehicle under
heavy operating conditions will improve performance
and extend transmission life by reducing excessive shift-
ing 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 than45 minutes of continuous operation. See Schedule B in
section 8 of this manual for transmission fluid change
intervals.
Towing Tips — TOW/HAUL (If Equipped)
To reduce potential for automatic transmission overheat-
ing, press the TOW HAUL button when driving in hilly
areas or shift the transmission to DRIVE position 2 on
more severe grades. Refer to “Transmission Shifting” in
this section.
Towing Tips — Electronic Speed Control (If
Equipped)

Do not use in hilly terrain or with heavy loads.
When using the speed control, if you experience speed
drops greater than 10 mph (16 km/h), disengage until
you can get back to cruising speed.
Use speed control in flat terrain and with light loads to
maximize fuel efficiency.
350 STARTING AND OPERATING

Preparations For Jacking
1. Park the vehicle on a firm level surface. Avoid icy or
slippery areas.
WARNING!
Do not attempt to change a tire on the side of the
vehicle close to moving traffic. Pull far enough off
the road to avoid being hit when operating the jack
or changing the wheel.
2. Set the parking brake.
3. Place the shift lever into PARK (automatic transmis-
sion) or REVERSE (manual transmission).
4. Turn the ignition to the LOCK position.
5. Turn on the Hazard Warning Flasher.6. Block both the front and rear of the
wheel diagonally opposite of the jack-
ing position. For example, if changing
the right front tire, block the left rear
wheel.
Jacking Instructions
WARNING!
Carefully follow these tire changing warnings to help
prevent personal injury or damage to your vehicle:
•Always park on a firm, level surface as far from
the edge of the roadway as possible before raising
the vehicle.
•Block the wheel diagonally opposite the wheel to
be raised.
(Continued)
358 WHAT TO DO IN EMERGENCIES

WARNING! (Continued)
•Set the parking brake firmly and set an automatic
transmission in PARK; a manual transmission in
REVERSE.
•Never start or run the engine with the vehicle on a
jack.
•Do not let anyone sit in the vehicle when it is on a
jack.
•Do not get under the vehicle when it is on a jack.
•Only use the jack in the positions indicated and
for lifting this vehicle during a tire change.
•If working on or near a roadway, be extremely
careful of motor traffic.
•To assure that spare tires, flat or inflated are
securely stowed, spares must be stowed with the
valve stem facing the ground.
•Turn on the Hazard Warning Flasher.1. Remove spare tire.
2. Remove jack and tools from mounting bracket. As-
semble the tools by connecting the driver to the exten-
sion, and then to the lug wrench.
3. Loosen (but do not remove) the wheel lug nuts by
turning them to the left one turn while the wheel is still
on the ground.
Jack Warning Label
WHAT TO DO IN EMERGENCIES 359
6

JUMP-STARTING
WARNING!
•Battery fluid is a corrosive acid solution; do not
allow battery fluid to contact eyes, skin or cloth-
ing. Don’t lean over battery when attaching
clamps or allow the clamps to touch each other. If
acid splashes in eyes or on skin, flush the contami-
nated area immediately with large quantities of
water.
•A battery generates hydrogen gas which is flam-
mable and explosive. Keep flame or spark away
from the vent holes. Do not use a booster battery
or any other booster source with an output that
exceeds 12-Volts.
1. Wear eye protection and remove all metal jewelry such
as watch bands or bracelets which might make an
unintended electrical contact.2. Park the booster vehicle within cable reach but with-
out letting the vehicles touch. Set the parking brake, place
the automatic transmission in PARK, and turn the igni-
tion OFF on both vehicles.
3. Turn off the heater, radio, and all unnecessary electri-
cal loads.
4. Connect one end of a jumper cable to the positive
terminal of the booster battery. Connect the other end of
the same cable to the positive terminal of the discharged
battery.
WARNING!
Do not permit vehicles to touch each other as this
could establish a ground connection and personal
injury could result.
362 WHAT TO DO IN EMERGENCIES