2004 JEEP WRANGLER ECO mode

Torque Converter Clutch
A feature designed to improve fuel economy has been
added to the automatic transmission of this vehicle. A
clutch within the torque converter engages automatically
at calibrated speeds. This may result in a slightly differ-
ent feeling or response during normal operation in high
gear. When the vehicle speed drops or during accelera-
tion, the clutch automatically and smoothly disengages.
FOUR±WHEEL DRIVE OPERATION
(COMMAND-TRACŸ OR ROCK-TRACŸ) Ð IF
EQUIPPEDOperating Instructions/Precautions
The transfer case provides four mode positions Ð two
(rear) wheel drive high range, four wheel drive high
range, neutral, and four wheel drive low range.
This transfer case is intended to be driven in the two
wheel drive (2H) position for normal street and highway
conditions such as dry hard surfaced roads.
In the events when additional traction is required, the
transfer case 4H and 4L positions can be used to lock the
front and rear driveshafts together and force the front
and rear wheels to rotate at the same speed. This is
accomplished by simply moving the shift lever to these
positions. The 4H and 4L positions are intended for loose,
slippery road surfaces only. Driving in the 4H and 4L
positions on dry hard surfaced roads may cause in-
creased tire wear and damage to the driveline compo-
nents.
The 4WD indicator light, located in the instrument panel,
alerts the driver that the vehicle is in four wheel drive
and that the front and rear driveshafts are locked to-
gether. This light illuminates when the transfer case is
shifted to either the 4H or 4L positions.
170 STARTING AND OPERATING

WARNING!
To use your brakes and decelerate more safely, follow these
tips:
²Do not ªrideº the brakes by resting your foot on the pedal.
This could overheat the brakes and result in unpredictable
braking action, longer stopping distances, or brake damage.
²When descending mountains or hills, repeated braking can
cause brake fade with loss of braking control. Avoid
repeated heavy braking by downshifting the transmission
whenever possible.
²Do not downshift on icy or slippery roads, because engine
braking may cause skidding and loss of control.
²Engines may idle at higher speeds during warm-up, which
could cause rear wheels to spin and result in loss of vehicle
control. Be especially careful while driving on slippery
roads, in close-quarter maneuvering, parking or stopping.
Remember, always engage 4-wheel drive when driving on
slippery roads.
²Do not drive too fast for road conditions, especially when
roads are wet or slushy. A wedge of water can build up
between the tire tread and the road. This hydroplaning
action can cause loss of traction, braking ability, and
control. Under such conditions, engage 4-wheel drive.
²After going through deep water or a car wash, brakes may
become wet, resulting in poor performance and unpredict-
able braking action. Dry the brakes by gentle, intermittent
pedal action while driving at very slow speeds.
WARNING!
The weight and position of cargo and passengers can
change the vehicle center of gravity and vehicle han-
dling. To avoid loss of control resulting in personal
injury, follow these guidelines:
²Always place cargo evenly on the cargo floor, and
locate heavier objects as low and as far forward as
possible.
²Place as much cargo as possible in front of the rear
axle. Too much weight or improperly placed weight
over or behind the rear axle can cause the rear of the
vehicle to sway.
²Do not pile luggage or cargo higher than the top of
the seatback. This could impair visibility or become
a dangerous projectile in a sudden stop or collision.
²The rear cargo space is intended for load carrying
purposes only, not for passengers, who should sit in
seats and use seat belts.
²On hardtop models, do not drive with the lift glass
up. On fabric top models, do not drive with the rear
window curtain up unless the side curtains are also
open. This will prevent dangerous exhaust fumes
from entering the vehicle.
178 STARTING AND OPERATING

Improper alignment will not cause vehicle vibration,
which may be a result of tire and wheel out-of-balance.
Proper balancing will reduce vibration and avoid tire
cupping and spotty wear.
TIRE CHAINS
Install chains on rear tires only. Tire chains may be
installed on all models except Sahara. Follow these
recommendations to guard against damage and exces-
sive tire and chain wear:
²Use chains on P205/75R15 or P215/75R15 tires only.
P225/75R15, LT30 x 9.50R15, and LT245/75R16 tires
do not provide adequate clearance.
²Use SAE class ªSº tire chains or traction devices only.
²Chains must be the proper size for the vehicle, as
recommended by the chain manufacturer.
²Follow tire chain manufacturer's instructions for
mounting chains.
²Install chains snugly and tighten after.6 mile (1 km) of
driving.
²Do notexceed 30 mph (48 km/h).
²Drive cautiously, avoiding large bumps, potholes and
extreme driving maneuvers.
²Do notuse chains or traction devices on the Poly-spare
tire.
TIRE ROTATION RECOMMENDATIONS
Tires on the front and rear axles of vehicles operate at
different loads and perform different steering, handling,
and braking functions. For these reasons, they wear at
unequal rates, and develop irregular wear patterns.
These effects can be reduced by timely rotation of tires.
The benefits of rotation are especially worthwhile with
aggressive tread designs such as those on On/Off Road
type tires. Rotation will increase tread life, help to main-
tain mud, snow, and wet traction levels, and contribute to
a smooth, quiet ride.
196 STARTING AND OPERATING

Chassis
Component Fluid, Lubricant, or Genuine Part
Automatic Transmission MopartATF+4 Automatic Transmission Fluid.
Manual Transmission MopartManual Transmission Lubricant or equivalent.
Transfer Case MopartATF+4 Automatic Transmission Fluid.
Axle Differential (front-rear) MopartHypoid Gear Lubricant (SAE 80W-90) (API GL5) or equivalent. For
trailer towing, use a SAE 75W-140 Synthetic Gear Lubricant. Models
equipped with Trac-Lok require an additive.
Brake Master Cylinder MopartDOT 3, SAE J1703 should be used. If DOT 3, SAE J1703 brake fluid
is not available, then DOT 4 is acceptable. Use only recommended brake flu-
ids.
Power Steering Reservoir MopartATF+4 Automatic Transmission Fluid.
Steering Gear & Linkage, Ball
Joints, Prop Shafts & Yokes, Wheel
BearingsMopartMulti-Purpose Lubricant NLGI Grade 2 EP, GC-LB
260 MAINTAINING YOUR VEHICLE