2008 DODGE NITRO clutch

Overdrive Operation
The overdrive automatic transmission contains an elec-
tronically controlled 5th speed (Overdrive). The trans-
mission will automatically shift from 4th gear to Over-
drive if the following conditions are present:
²the transmission selector is in D (Drive);
²the engine coolant has reached normal operating tem-
perature;
²vehicle speed is above approximately 30 mph (48
km/h);
²transmission has reached normal operating tempera-
ture.
NOTE:If the vehicle is started in extremely cold tem-
peratures, the transmission may not shift into Overdrive
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 (2) gear to 1st (1) gear after
the initial 1st (1) to 2nd (2) 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.
To reset the transmission, use the following procedure:
STARTING AND OPERATING 263
5

1. Stop the vehicle.
2. Move the shift lever to the P (Park) position.
3. Turn off the engine, 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, P
(Park), R (Reverse), and N (Neutral) will continue to
operate. Only Second gear range will operate in the D
(Drive) shifter position. Have the transmission checked at
your authorized 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
[usually after 1-3 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 transmission
is not shifting into Overdrive when cold. This is normal.
NOTE:If the vehicle has not been driven in several
days, the first few seconds of operation after shifting the
transmission into gear may seem sluggish. This is due to
the fluid partially draining from the torque converter into
264 STARTING AND OPERATING

Towing Tips
Before setting out on a trip, practice turning, stopping
and backing the trailer in an area away from heavy
traffic.
If using a manual transmission vehicle for trailer towing,
all starts must be in FIRST gear to avoid excessive clutch
slippage.
Towing Tips Ð Automatic Transmission
The ªDº range can be selected when towing. However, if
frequent shifting occurs while in this range, the ª3º range
should be selected.
NOTE:Using the ª3º (3.7L engine) or ª4º (4.0L engine)
range while operating the vehicle under heavy operating
conditions will improve performance and extend trans-
mission life by reducing excessive 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 ªBº in
section 8 of this manual for transmission fluid change
intervals.
Towing Tips Ð TOW/HAUL (If Equipped)
To reduce potential for automatic transmission overheat-
ing, press the ªTOW HAULº button when driving in
hilly areas or shift the transmission to Drive position 2 on
more severe grades. Refer to ªTransmission Shiftingº in
this section.
Towing Tips Ð Electronic Speed Control (If
Equipped)
þ
Don't use in hilly terrain or with heavy loads.
þWhen 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.
STARTING AND OPERATING 329
5

NPower Steering Fluid Check..............363
NDriveline And Steering Component
Lubrication..........................364
NBody Lubrication.....................364
NWindshield Wiper Blades................365
NWindshield Washers...................365
NExhaust System......................366
NCooling System.......................366
NHoses And Vacuum/Vapor Harnesses.......371
NBrake System........................372
NAutomatic Transmission................374
NHydraulic Clutch Fluid Ð Manual
Transmission........................375
NManual Transmission..................375NTransfer Case........................376
NFront/Rear Axle Fluid..................377
NAppearance Care And Protection From
Corrosion...........................377
mFuses (Integrated Power Module)...........381
mReplacement Light Bulbs.................389
mBulb Replacement......................389
NHead Light..........................389
NLeft Front Turn Signal..................390
NRight Front Turn Signal.................391
NFront Side Marker.....................391
NFront Fog Light (Front Fascia Mounted).....391
NRear Tail, Stop, Turn Signal, And Back-Up
Lights.............................392
346 MAINTAINING YOUR VEHICLE

Fluid Level Check Ð W5A580 (4.0L Engine)
Your vehicle is equipped with a capped dipstick tube, it
is sealed and should not be tampered with. Your autho-
rized dealer has the proper tools to ensure that the fluid
level is set properly.
Special Additives
The manufacturer strongly recommends against the ad-
dition of any additives to the transmission. The only
exception to this policy is the use of special dyes to aid in
detecting fluid leaks. The use of transmission sealers
should be avoided as they may adversely affect seals.
Hydraulic Clutch Fluid Ð Manual Transmission
The clutch hydraulic system is fed by a segregated
volume of fluid within the brake system master cylinder
reservoir. In the event of leakage or wear, use only
manufacturer's recommended brake fluid, refer to Fluids,
Lubricants, and Genuine Parts for correct fluid type.
Manual Transmission
Selection of Lubricant
Use only manufacturer's recommended manual trans-
mission fluid, refer to Fluids, Lubricants, and Genuine
Parts for correct fluid type.
Fluid Level Check
Check the fluid level by removing the fill plug. The fluid
level should be between the bottom of the fill hole and a
point not more than 3/16º (4.76 mm) below the bottom of
the hole.
Add fluid, if necessary, to maintain the proper level.
Frequency of Fluid Change
Under normal operating conditions, the fluid installed at
the factory will give satisfactory lubrication for the life of
the vehicle. Fluid changes are not necessary unless the
lubricant has become contaminated with water. If con-
taminated with water, the fluid should be changed im-
mediately.
MAINTAINING YOUR VEHICLE 375
7

Chassis
Component Fluids, Lubricants and Genuine Parts.
Automatic Transmission MopartATF+4, Automatic Transmission Fluid.
Manual Transmission MopartManual Transmission Lubricant or equivalent (meeting the re-
quirements of DaimlerChrysler Material Standard MS-9224)
Transfer Case MopartATF+4, Automatic Transmission Fluid.
Front Axle SAE 80W-90 Multipurpose Type, GL-5 Gear Lubricant or equivalent.
Rear Axle SAE 75W-140 Synthetic Gear Lubricant or equivalent.
Brake Master Cylinder/Manual
Transmission Clutch SystemMopartDOT 3 Brake Fluid, SAE J1703 should be used. If DOT 3, SAE
J1703 brake fluid is not available, then DOT 4 is acceptable. Use only rec-
ommended brake fluids.
Power Steering Reservoir MopartATF+4, Automatic Transmission Fluid.
396 MAINTAINING YOUR VEHICLE

Hitches
Trailer Towing........................ 319
Holder, Coin........................... 152
Holder, Cup........................... 151
HomeLinkt(Garage Door Opener) Transmitter . . . 137
Hood Release.......................... 121
Hoses.............................371,372
Hydraulic Clutch Fluid.................... 375
Ignition............................... 12
Key ................................. 12
Ignition Key Removal..................... 12
Illuminated Entry........................ 19
Immobilizer (Sentry Key)................... 14
Infant Restraint........................66,67
Inflation Pressure Tires.................... 288
Information Center, Vehicle................. 184
Inside Rearview Mirror.................... 83
Instrument Cluster....................167,168Instrument Panel and Controls.............. 166
Instrument Panel Lens Cleaning............. 381
Integrated Power Module (Fuses)............ 381
Interior Appearance Care.................. 380
Interior Lights.......................... 122
Intermittent Wipers (Delay Wipers)........... 126
Introduction............................. 4
Inverter, Power......................... 149
Jack Location........................... 336
Jack Operation.......................336,339
Jacking Instructions...................... 339
Key, Programming........................ 16
Key, Replacement........................ 15
Key, Sentry (Immobilizer)................... 14
Key-In Reminder......................... 14
Keyless Entry System...................... 20
Keys................................. 12
INDEX 423
10

General Information.................... 287
High Speed.......................... 290
Inflation Pressures..................... 288
Jacking............................. 336
Life of Tires.......................... 292
Load Capacity.....................283,284
Pressure Monitor System (TPMS)........... 296
Quality Grading....................... 412
Radial.............................. 290
Replacement......................... 292
Rotation............................. 295
Safety............................78,279
Sizes............................... 280
Spare Tire........................... 337
Spinning............................ 290
Tread Wear Indicators................... 291
Tongue Weight/Trailer Weight.............. 323
Torque Converter Clutch................259,264
Towing............................... 315Disabled Vehicle....................... 343
Guide.............................. 320
Recreational.......................... 330
Weight.............................. 320
Traction Control......................132,173
Trailer Towing.......................... 315
Cooling System Tips.................... 330
Hitches............................. 319
Minimum Requirements................. 324
Trailer and Tongue Weight................ 323
Wiring.............................. 327
Trailer Towing Guide..................... 320
Trailer Weight.......................... 320
Transaxle............................. 252
Automatic........................... 252
Operation........................... 252
Transfer Case........................... 376
Fluid............................... 396
Maintenance.......................... 376
INDEX 431
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