2006 JEEP COMMANDER clutch

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 has
risen to a suitable level. Refer also to the Note under
torque converter clutch, later in this section.
During cold temperature operation you may notice de-
layed upshifts depending on engine and transmission
temperature. This feature improves the warm up time of
the engine and transmission.
If the transmission temperature gets extremely hot, the
transmission will automatically select the most desirable
gear for operation at this temperature. If the transmission
temperature becomes hot enough, the “TRANSMISSIONOVER TEMP” message may display and the transmis-
sion may downshift out of Overdrive until the transmis-
sion cools down. After cooldown, the transmission will
resume normal operation.
In high ambient temperatures with sustained high engine
speed and load, an upshift followed shortly thereafter by
a downshift may occur. This is a normal part of the
overheat protection strategy when operating in the
“Tow/Haul” mode.
The transmission will downshift from Overdrive to the
most desirable gear if the accelerator pedal is fully
depressed at vehicle speeds above approximately 35 mph
(56 km/h).
When To Use “TOW/HAUL” Mode — If Equipped
When driving in hilly areas, towing a trailer, carrying a
heavy load, etc., and frequent transmission shifting oc-
curs, press the “TOW/HAUL” button. This will improve
performance and reduce the potential for transmission
260 STARTING AND OPERATING

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 is included
in all automatic transmissions. A clutch within the torque
converter engages automatically at a calibrated speed at
light throttle. It engages at higher speeds under heavier
acceleration. This may result in a slightly different feeling
or response during normal operation in high gear. When
the vehicle speed drops below a calibrated speed, orduring acceleration, the clutch automatically and
smoothly disengages. The feature is operational in Over-
drive 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.
Manually shifting between 3 (third gear) and 4 (fourth
gear) positions (using the ERS shift control) will demon-
strate that the transmission is able to shift into and out of
Overdrive.
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
the transmission. This condition is normal and will not
262 STARTING AND OPERATING

4LOWto4HI
With the vehicle at speeds of 0 to 3 mph (0 to 5 km/h),
key ON or engine running, shift the transmission into N
(Neutral), and raise the transfer case T-handle. The “4WDLOW Indicator Lamp” in the instrument cluster will flash
and go out when the shift is complete. Release the
T-handle.
NOTE:If shift conditions/interlocks are not met, or a
transfer case motor temperature protection condition
exists, a “CHECK SHIFT PROCEDURES” message will
flash from the EVIC (Electronic Vehicle Information Cen-
ter). Refer to “Electronic Vehicle Information Center
(EVIC)” in Section 4 of this manual. (See page 186 for
more information.)
NOTE:Shifting into or out of 4WD LOW is possible
with the vehicle completely stopped, however difficulty
may occur due to the mating clutch teeth not being
properly aligned. Several attempts may be required for
clutch teeth alignment and shift completion to occur. The
preferred method is with the vehicle rolling 0 to 3 mph (0
to 5 km/h). If the vehicle is moving faster than 3 mph (5
km/h), the transfer case will not allow the shift.
Shifter T-Handle
STARTING AND OPERATING 267
5

If using a manual transmission vehicle for trailer towing,
all starts must be in FIRST gear to avoid excessive clutch
slippage.
Towing Tips — Automatic Transmission
The “D” range can be selected when towing. However, if
frequent shifting occurs while in this range, the ”Tow/
Haul” mode (if equipped) or the “3” range should be
selected. Shift the transmission to Drive position 2 on
more severe grades.
NOTE:Using the ”Tow/Haul” mode (if equipped) or
the “3” range while operating the vehicle under heavy
operating conditions will improve performance and ex-
tend transmission 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 than45 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.
Towing Tips — Electronic Speed Control (If
Equipped)

Don’t 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.
Towing Tips — Cooling System
To reduce potential for engine and transmission over-
heating, take the following actions:
322 STARTING AND OPERATING

Underhood Fuses (Power Distribution Center)
Cavity Fuse/Color Description
1 40 Amp Green HVAC Blower
2 30 Amp Pink Power Outlets
3 30 Amp Pink Rr Wiper/Ign R/O
Cavity Fuse/Color Description
4 30 Amp Pink ABS Pump
5 50 Amp Red Cabin Htr 1 (Diesel Only)
6 50 Amp Red ASD
7 30 Amp Pink Rr HVAC (XK)
8 40 Amp Green Acc Delay/Seats
9 Spare
10 40 Amp Green Starter/JB Power
11 30 Amp Pink Cig Ltr/T-Tow
12 40 Amp Green EBL/Htd Mirror
13 40 Amp Green JB Power
14 50 Amp Red Cabin Htr 2 (Diesel Only)
15 50 Amp Red Cabin Htr 3 (Diesel Only)
16 25 Amp Natural IPM/Coils
17 Spare
18 20 Amp Yellow TCM/AC Clutch
19 20 Amp Yellow Ign Sw
Power Distribution Center
MAINTAINING YOUR VEHICLE 383
7

Cavity Fuse/Color Description
20 20 Amp Yellow PCM Batt (Gasoline Only)
21 30 Amp Pink ABS Valves
22 Spare
23 20 Amp Yellow FDCM
24 20 Amp Yellow Fuel Pump
25 20 Amp Yellow FDCM/E-Diff.
26 15 Amp Blue Hyd/PCM (Diesel Only)
27 15 Amp Blue Brake/Stop Lamps
28 25 Amp Natural NGC/Injectors
29 Spare
30 Spare
31 Mini Relay Cabin Htr 1 Rly (Diesel
Only)
32 Micro Relay TCM Rly (Gasoline Only)
33 Micro Relay Starter Rly
34 Micro Relay AC Clutch RlyCavity Fuse/Color Description
35 Micro Relay Fuel Pump Rly
36 Mini Relay Cabin Htr 3 Rly (Diesel
Only)
38 Mini Relay Cabin Htr 2 Rly (Diesel
Only)
39 Mini Relay HVAC Blower Rly
40 Mini Relay ASD Rly
384 MAINTAINING YOUR VEHICLE

Inflation Pressures..................... 290
Jacking............................. 332
LifeofTires .......................... 294
Load Capacity.....................285,286
Pressure Monitor System (TPMS)........... 297
Pressure Warning Light.................. 181
Quality Grading....................... 417
Radial.............................. 293
Replacement......................... 295
Rotation............................. 304
Safety............................ 71,281
Sizes ............................... 282
Spare Tire........................... 333
Spinning ............................ 293
Tread Wear Indicators................... 294
Wheel Mounting....................... 337
Tongue Weight/Trailer Weight.............. 316
Torque Converter Clutch.................. 262
Tow Hooks, Emergency................... 340Tow/Haul Indicator Light................. 183
Towing ............................312,341
Disabled Vehicle....................... 341
Guide .............................. 315
Recreational.......................... 323
Weight .............................. 315
Traction Control......................... 133
Traction Control Light.................... 180
TrailerTowing .......................... 312
Cooling System Tips.................... 322
Hitches............................. 314
Minimum Requirements................. 317
Trailer and Tongue Weight................ 316
Wiring .............................. 320
TrailerTowingGuide ..................... 315
TrailerWeight .......................... 315
Transfer Case........................... 375
Maintenance.......................... 375
INDEX 435
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