2006 JEEP WRANGLER check transmission fluid

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 “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.
Towing Tips — O/D Off (If Equipped)
To reduce potential for automatic transmission overheat-
ing, turn the “O/D OFF” feature ON 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)

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.
STARTING AND OPERATING 247
5

▫Air Conditioner Maintenance .............280
▫ Power Steering Fluid Check ..............281
▫ Driveline And Steering Component
Lubrication ..........................282
▫ Body Lubrication .....................282
▫ Windshield Wiper Blades ................282
▫ Windshield Washers ...................283
▫ Exhaust System ......................283
▫ Cooling System .......................284
▫ Hoses And Vacuum/Vapor Harnesses .......289
▫ Brake System ........................290
▫ Automatic Transmission ................292
▫ Hydraulic Clutch Fluid —
Manual Transmission ..................294 ▫
Manual Transmission ..................294
▫ Transfer Case ........................295
▫ Front/Rear Axle Fluid ..................296
▫ Appearance Care And Protection From
Corrosion ...........................297

Fuse Panel ...........................305
▫ Interior Fuses ........................305
▫ Underhood Fuses
(Power Distribution Center) ..............307

Vehicle Storage ........................309

Replacement Bulbs — If Equipped ...........309

Bulb Replacement ......................310
▫ Head Light ..........................310
▫ Front Park/Turn Signal .................311
264 MAINTAINING YOUR VEHICLE

should be checked when pads are replaced. However,
low fluid level may be caused by a leak and a checkup
may be needed.
Use only manufacturer’s recommended brake fluid, refer
to Fluids, Lubricants, and Genuine Parts for correct fluid
type.
WARNING!
•Use of a brake fluid that may have a lower initial
boiling point or unidentified as to specification,
may result in sudden brake failure during hard
prolonged braking. You could have an accident.
•Overfilling the brake fluid reservoir can result in
spilling brake fluid on hot engine parts and the
brake fluid catching fire.
Use only brake fluid that has been in a tightly closed
container to avoid contamination from foreign matter. Do
not allow petroleum base fluid to contaminate the brake
fluid as seal damage will result.
Automatic Transmission
Selection of Lubricant
It is important that the proper lubricant is used in the
transmission to assure optimum transmission perfor-
mance. Use only manufacturer’s recommended transmis-
sion fluid, refer to Fluids, Lubricants, and Genuine Parts
for correct fluid type. It is important that the transmission
fluid be maintained at the prescribed level using the
recommended fluid.
292 MAINTAINING YOUR VEHICLE

CAUTION!
Using a transmission fluid other than the manufac-
turer’s recommended fluid may cause deterioration
in transmission shift quality and/or torque converter
shudder. Using a transmission fluid other than the
manufacturer’s recommended fluid will result in
more frequent fluid and filter changes. Refer to
Fluids, Lubricants, and Genuine Parts for correct
fluid type.
Fluid Level Check — 42RLE
This fluid level should be checked when the engine is
fully warmed up and the fluid in the transmission is
heated to its normal operating temperature. Operation of
the transmission with an improper fluid level will greatly
reduce the life of the transmission and of the fluid. To check the automatic transmission fluid level properly,
the following procedure must be used:
1. The vehicle must be on level ground.
2. The engine should be running at curb idle speed for a
minimum of 60 seconds.
3. Fully apply parking brake.
4. Apply the brakes and shift the transmission momen-
tarily into each gear position ending in P (Park).
5. The fluid
MUSTbe checked with the transmission in
P (Park) to be sure that the fluid level is accurate.
6. Wipe the dipstick clean and reinsert until seated.
Remove dipstick and note reading.
At normal operating temperature (approximately 180° F
(82° C), the fluid level is correct if it is in the HOT region
MAINTAINING YOUR VEHICLE 293
7

(cross-hatched area) on the oil level indicator. The fluid
level indicator should be in the COLD region at 70° F (21°
C) fluid temperature.
If the fluid level is low, add sufficient fluid to bring to the
proper level. Refer to Fluids, Lubricants and Genuine
Parts for correct fluid type.
Fluid is added through the dipstick tube.
NOTE: To prevent dirt and water from entering the
transmission after checking or replenishing fluid, make
certain that the dipstick cap is properly reseated.
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 — Manual Transmission
The clutch hydraulic system is a sealed maintenance free
system. In the event of leakage or other malfunction, the
system must be replaced.
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 3/16” (4.76 mm) below the bottom of
the hole.
Add fluid, if necessary, to maintain the proper level.
294 MAINTAINING YOUR VEHICLE

Once a Month
•Check the tire pressure and look for unusual wear or
damage.
•Inspect the battery and clean and tighten the terminals
as required.
•Check the fluid levels of the coolant reservoir, brake
master cylinder, and transmission, and add as needed.
•Check all lights and all other electrical items for correct
operation. At Each Oil Change
•Change the engine oil filter.
•Inspect the exhaust system.
•Inspect brake hoses.
•Check the coolant level, hoses, and clamps.
•After completion of off-road operation, the underside
of the vehicle should be thoroughly inspected. Exam-
ine threaded fasteners for looseness.
320 MAINTENANCE SCHEDULES
8
M
A I
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N A
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C
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D
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About Your Brakes....................... 203
ABS (Anti-Lock Brake System) ............151,205
Add-A-Trunk ........................... 74
Adding Washer Fluid ..................... 141
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 278
Air Conditioner Maintenance ............... 280
Air Conditioning ........................ 174
Air Conditioning Controls ................. 175
Air Conditioning, Operating Tips ............ 177
Air Conditioning Refrigerant ............... 281
Air Filter .............................. 278
Air Pressure, Tires ....................... 222
Airbag ................................ 27
Airbag Deployment ....................... 32
Airbag Light ......................... 34,149
Airbag Maintenance ....................... 33
Alignment and Balance ................... 227
Alterations/Modifications, Vehicle ............. 9
Antenna, Satellite Radio ................... 171 Antifreeze (Engine Coolant)
................ 314
Anti-Lock Brake System (ABS) .............. 205
Anti-Lock Warning Light .................. 151
Appearance Care ........................ 297
Automatic Dimming Mirror ................. 52
Automatic Transmission ................188,292
Adding Fluid ......................... 294
Fluid and Filter Changes ................. 292
Fluid Level Check ...................... 293
Fluid Type ........................... 292
Gear Ranges .......................... 189
Shifting ............................. 188
Special Additives ...................... 294
Torque Converter ...................... 194
Auxiliary Electrical Outlet (Power Outlet) ....... 71
Auxiliary Power Outlet .................... 71
Axle Lock ............................. 199
Battery ............................... 278
348 INDEX

Emergency Starting..................... 258
Voltmeter ............................ 147
Belts, Drive ............................ 275
Belts, Seat .............................. 20
Body Mechanism Lubrication ............... 282
B-Pillar Location ........................ 217
Brake System ........................... 290
Anti-Lock (ABS) ....................... 205
Hoses .............................. 290
Master Cylinder ....................... 291
Parking ............................. 200
Warning Light ........................ 151
Brakes ............................... 203
Brake/Transmission Interlock ............... 189
Break-In Recommendations, New Vehicle ........ 44
Bulb Replacement ..................... 309,310
Calibration, Compass ...................... 54
Capacities, Fluid ........................ 314 Caps, Filler
Fuel ................................ 233
Power Steering ........................ 281
Car Washes ............................ 298
Carbon Monoxide Warning ................. 232
Carpeting ............................. 301
Catalytic Converter ...................... 275
Caution, Exhaust Gas ...................... 45
CD (Compact Disc) Changer ................ 158
CD (Compact Disc) Player .........154,157,160,163
CD (Compact Disc) Player Maintenance ........ 171
Cellular Phone .......................... 172
Center High Mounted Stop Light ............ 313
Chains, Tire ............................ 228
Changing A Flat Tire ..................... 254
Chart, Tire Sizing ........................ 214
Check Engine Light
(Malfunction Indicator Light) .............149,269
Child Restraint ...................... 34,39,42
INDEX 349
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