transmission JEEP WRANGLER 2012 JK / 3.G User Guide

A. Electronic Vehicle Information
Center (EVIC) Controls pg. 73
B. Turn Signal/Lights Lever (behind
steering wheel) pg. 22
C. Electronic Vehicle Information
Center (EVIC) Display (behind
steering wheel) pg. 73
D. Instrument Cluster pg. 8
E. Wiper/Washer Lever (behind
steering wheel) pg. 23
F. Power Windows
G. Audio System (touch-screen-radio
shown) pg. 34H. Climate Controls pg. 25
I. Power Outlet/Cigar Lighter pg. 76
J. SWITCH PANEL
− Heated Seat Switches pg. 20
− Electronic Stability Control
pg. 84
− Hill Descent
− Hazard SwitchK. Transmission Gear Selector
L. Transfer Case Gear Selector
M. Power Mirrors
N. Speed Control pg. 24
O. Ignition Switch
P. Tilt Steering Column Lever pg. 19
Q. Power Door Locks
CONTROLS AT A GLANCE
7

Indicators
- Turn Signal Indicators
- High Beam Indicator
- Front Fog Light
Indicator
- Front Axle Lock
Indicator*
- Rear Axle Lock
Indicator*
- Vehicle Security
Indicator*
- O/D (Overdrive) Off
Indicator
- 4WD Indicator*
- Sway Bar Indicator*
- Electronic Stability
Control (ESC) Off
Indicator
- Cruise Indicator
Odometer MessagesECO - Fuel Saver Indicator LoW tirE* - Low Tire Pressure
door - Door Ajar HOTOIL* - Transmission Temperature Warning
Message
gASCAP - Fuel Cap Fault CHAngE OIL* - Change Engine Oil
gATE* - Swing Gate Ajar ESPOFF * - ESP Deactivated
noFUSE* - Fuse Fault
* If equipped
** Bulb Check with Key On
CONTROLS AT A GLANCE
9

ENGINE BREAK-IN RECOMMENDATIONS
• A long break-in period is not required for the engine and drivetrain
(transmission and axle) in your vehicle.
• Drive moderately during the first 300 miles (500 km). After the initial
60 miles (100 km), speeds up to 50 or 55 mph (80 or 90 km/h) are
desirable.
• While cruising, brief full-throttle acceleration within the limits of local
traffic laws contributes to a good break-in. Wide-open throttle
acceleration in low gear can be detrimental and should be avoided.
• The engine oil installed in the engine at the factory is a high-quality
energy conserving type lubricant. Oil changes should be consistent with
anticipated climate conditions under which vehicle operations will occur.
For the recommended viscosity and quality grades, refer to “Maintaining
Your Vehicle”.
NOTE:A new engine may consume some oil during its first few thousand
miles (kilometers) of operation. This should be considered a normal part of
the break-in and not interpreted as an indication of difficulty.
CAUTION!
Never use Non-Detergent Oil or Straight Mineral Oil in the engine or
damage may result.
OPERATING YOUR VEHICLE
21

COMMAND-TRAC®/ROCK-TRAC®
• The transfer case provides four
mode positions: 2H (Two-wheel
drive high range), 4H (Four-wheel
drive high range), N (Neutral), and
4L (Four-wheel drive low range).
• The transfer case is intended to be
driven in the 2H position for
normal street and highway
conditions such as hard-surfaced
roads.
• Shifting between 2H and 4H can
be made with the vehicle stopped
or in motion. Shift the transfer
case lever firmly to 4H at any
speed up to 50 mph (80 km/h).
• Shifting between 4H and 4L can be made with the vehicle rolling at 2 to
3 mph (3 to 5 km/h). Shift the automatic transmission into NEUTRAL or
fully depress the clutch pedal on a manual transmission. Shift the transfer
case lever firmly to 4L (do not pause with the transfer case in
NEUTRAL). Once the shift is completed, place the automatic
transmission into DRIVE or release the clutch pedal on a manual
transmission.
NOTE:To enhance off-road performance in 4L mode, manual transmission
vehicles will start regardless of whether or not the clutch pedal is depressed.
AXLE LOCK (TRU-LOK®) RUBICON ONLY
• The AXLE LOCK switch is located on the instrument panel (to the left of
the steering column).
• This feature will only activate when the following conditions are met:
• Key in ignition, vehicle in 4L (Low) range.
• Vehicle speed at 10 mph (16 km/h) or less.
• Press the bottom of the AXLE LOCK switch once to lock the rear axle
only and a second time to lock the front axle (the rear and front axle lock
indicator lights will illuminate).
• To unlock the axles, press the top of the AXLE LOCK switch.
• The indicator light will flash until the axles are fully locked or unlocked.
OFF-ROAD CAPABILITIES
77

TRAILER TOWING WEIGHTS (MAXIMUM TRAILER WEIGHT RATINGS)Engine/Transmission Axle ModelGCWR (Gross
Combined Wt.
Rating)Frontal AreaMax. GTW
(Gross
Trailer Wt.)Max. Trailer
Tongue Wt.
(See Note)
3.6L/Manual 3.21 Two–Door Sport
Model (4WD)5,329 lbs
(2 417 kg)25 sq ft (2.32 sq
m)1,000 lbs
(453 kg)100 lbs (45 kg)
3.6L/Manual 3.73 Two–Door Sport
Model (4WD)6,329 lbs
(2 871 kg)25 sq ft (2.32 sq
m)2,000 lbs
(907 kg)200 lbs (91 kg)
3.6L/Automatic 3.73 Two–Door Sport
Model (4WD)6,353 lbs
(2 881 kg)25 sq ft (2.32 sq
m)2,000 lbs
(907 kg)200 lbs (91 kg)
3.6L/Manual 3.21 Two–Door
Sahara Model
(4WD)5,430 lbs
(2 463 kg)25 sq ft (2.32 sq
m)1,000 lbs
(453 kg)100 lbs (45 kg)
3.6L/Manual 3.73 Two–Door
Sahara Model
(4WD)6,430 lbs
(2 916 kg)25 sq ft (2.32 sq
m)2,000 lbs
(907 kg)200 lbs (91 kg)
3.6L/Automatic 3.73 Two–Door
Sahara Model
(4WD)6,454 lbs
(2 927 kg)25 sq ft (2.32 sq
m)2,000 lbs
(907 kg)200 lbs (91 kg)
3.6L/Manual 4.10 2–Door Rubicon
Model (4WD)6,507 lbs
(2 951 kg)25 sq ft (2.32 sq
m)2,000 lbs
(907 kg)200 lbs (91 kg)
3.6L/Automatic 4.10 Two–Door
Rubicon Model
(4WD)6,533 lbs
(2 963 kg)25 sq ft (2.32 sq
m)2,000 lbs
(907 kg)200 lbs (91 kg)
3.6L/Manual 3.21 Four–Door
Sport Model
(4WD)5,742 lbs
(2 604 kg)32 sq ft (2.97 sq
m)1,000 lbs
(453 kg)100 lbs (45 kg)
3.6L/Manual 3.73 Four–Door
SportModel
(4WD)8,242 lbs
(3 738 kg)32 sq ft (2.97 sq
m)3,500 lbs
(1 587 kg)350 lbs (159 kg)
UTILITY
79

Engine/Transmission Axle ModelGCWR (Gross
Combined Wt.
Rating)Frontal AreaMax. GTW
(Gross
Trailer Wt.)Max. Trailer
Tongue Wt.
(See Note)
3.6L/Automatic 3.73 Four–Door
Sport Model
(4WD)8,257 lbs
(3 745 kg)32 sq ft (2.97 sq
m)3,500 lbs
(1 587 kg)350 lbs (159 kg)
3.6L/Manual 3.21 Four–Door
Sahara Model
(4WD)5,782 lbs
(2 623 kg)32 sq ft (2.97 sq
m)1,000 lbs
(453 kg)100 lbs (45 kg)
3.6L/Manual 3.73 Four–Door
Sahara Model
(4WD)8,282 lbs
(3 757 kg)32 sq ft (2.97 sq
m)3,500 lbs
(1 587 kg)350 lbs (159 kg)
3.6L/Automatic 3.73 Four–Door
Sahara Model
(4WD)8,297 lbs
(3 763 kg)32 sq ft (2.97 sq
m)3,500 lbs
(1 587 kg)350 lbs (159 kg)
3.6L/Manual 4.10 Four–Door
Rubicon Model
(4WD)8,406 lbs
(3 813 kg)32 sq ft (2.97 sq
m)3,500 lbs
(1 587 kg)350 lbs (159 kg)
3.6L/Automatic 4.10 Four–Door
Rubicon Model
(4WD)8,431 lbs
(3 824 kg)32 sq ft (2.97 sq
m)3,500 lbs
(1 587 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 (ie. the
GVWR), and the GVWR should never exceed the weight referenced on the Tire and Loading Information placard.
UTILITY
80

RECREATIONAL TOWING (BEHIND MOTORHOME,
ETC.)
Towing This Vehicle Behind Another Vehicle
Towing ConditionWheels OFF
the GroundFour-Wheel Drive Models
Flat Tow NONESee Instructions
• Automatic transmission in
PARK
• Manual transmission in gear
(NOT in NEUTRAL (N)
• Transfer case in NEUTRAL
(N)
• Tow in forward
direction
Dolly TowFront
NOT ALLOWED
Rear
NOT ALLOWED
On Trailer ALL OK
Recreational Towing – Four-Wheel Drive Models
NOTE:The transfer case must be shifted intoNEUTRAL (N),automatic
transmission must be shifted intoPARK,and manual transmission must be
placed in gear (NOT in NEUTRAL) for recreational towing.
Shifting Into NEUTRAL (N)
Use the following procedure to prepare your vehicle for recreational towing.
1. Bring the vehicle to a complete stop.
2. Turn OFF the engine.
3. Press and hold the brake pedal.
4. Shift the automatic transmission into NEUTRAL or depress the clutch
pedal on a manual transmission.
5. Shift the transfer case lever into NEUTRAL (N).
6. Start the engine.
7. Shift the transmission into REVERSE.
8. Release the brake pedal (and clutch pedal on manual transmissions) for
five seconds and ensure that there is no vehicle movement.
9. Repeat steps 7 and 8 with automatic transmission in DRIVE or manual
transmission in first gear.
10. Turn OFF the engine.
11. Firmly apply the parking brake.
12. Shift the transmission into PARK or place manual transmission in gear
(NOT in Neutral).
UTILITY
81

13. Attach the vehicle to the tow vehicle using a suitable tow bar.
14. Release the parking brake.
Shifting Out of NEUTRAL (N)
Use the following procedure to prepare your vehicle for normal usage.
1. Bring the vehicle to a complete stop, leaving it connected to the tow
vehicle.
2. Firmly apply the parking brake.
3. Turn the ignition switch to the ON/RUN position, but do not start the
engine.
4. Press and hold the brake pedal.
5. Shift the transmission into NEUTRAL.
6. Shift the transfer case lever to the desired position.
NOTE:When shifting out of transfer case NEUTRAL (N), turning the engine
OFF may be required to avoid gear clash.
7. Shift the automatic transmission into PARK, or place manual
transmission in Neutral.
8. Release the brake pedal.
9. Disconnect vehicle from the tow vehicle.
10. Start the engine.
11. Press and hold the brake pedal.
12. Release the parking brake.
13. Shift the transmission into gear, release the brake pedal (and clutch
pedal on manual transmissions), and check that the vehicle operates
normally.
CAUTION!
• It is necessary to follow these steps to be certain that the transfer
case is fully in NEUTRAL (N) before recreational towing to prevent
damage to internal parts.
• Damage to the transmission may occur if the transmission is shifted
into PARK with the transfer case in NEUTRAL (N) and the engine
running. With the transfer case in NEUTRAL (N) ensure that the
engine is OFF prior to shifting the transmission into PARK.
• Front or rear wheel lifts should not be used. Internal damage to the
transmission or transfer case will occur if a front or rear wheel lift is
used when recreational towing.
• Tow only in the forward direction. Towing this vehicle backwards
can cause severe damage to the transfer case.
• Automatic transmissions must be placed in the PARK position for
recreational towing.
(Continued)
UTILITY
82

CAUTION!(Continued)
• Manual transmissions must be placed in gear (not in Neutral) for
recreational towing.
• Before recreational towing, perform the procedure outlined under
“Shifting Into NEUTRAL (N)” to be certain that the transfer case is
fully in NEUTRAL (N). Otherwise, internal damage will result.
• Towing this vehicle in violation of the above requirements can cause
severe transmission and/or transfer case damage. Damage from
improper towing is not covered under the New Vehicle Limited
Warranty.
• Do not use a bumper-mounted clamp-on tow bar on your vehicle.
The bumper face bar will be damaged.
WARNING!
You or others could be injured if you leave the vehicle unattended
with the transfer case in the NEUTRAL (N) position without first fully
engaging the parking brake. The transfer case NEUTRAL (N) position
disengages both the front and rear driveshafts from the powertrain
and will allow the vehicle to move, even if the transmission is in PARK.
The parking brake should always beapplied when the driver is not in
the vehicle.
UTILITY
83

- Engine Temperature Warning Light
• This light warns of an overheated engine condition.
• If the light turns on and a warning chime sounds while driving, safely pull
over and stop the vehicle. If the A/C system is on, turn it off. Also, shift
the transmission into NEUTRAL and idle the vehicle. If the temperature
reading does not return to normal, turn the engine off immediately.
• We recommend that you do not operate the vehicle or engine damage
will occur. Have the vehicle serviced immediately.
WARNING!
A hot engine cooling system is dangerous. You or others could be
badly burned by steam or boiling coolant. You may want to call an
authorized service center for service if your vehicle overheats.
BRAKE- Brake Warning Light
• The Brake Warning light illuminates when there is either a system
malfunction or the parking brake is applied. If the light is on and the
parking brake is not applied, it indicates a possible brake hydraulic
malfunction, brake booster problem or an Anti-Lock Brake System
problem.
• Please have your vehicle serviced immediately.
WARNING!
Driving a vehicle with the red brake light on is dangerous. Part of the
brake system may have failed. It will take longer to stop the vehicle.
You could have a collision. Have the vehicle checked immediately.
- Malfunction Indicator Light (MIL)
• Certain conditions, such as a loose or missing gas cap, poor fuel quality,
etc., may illuminate the MIL after engine start. The vehicle should be
serviced if the light stays on through several typical driving cycles. In
most situations, the vehicle will drive normally and not require towing.
• If the MIL flashes when the engine is running, serious conditions may
exist that could lead to immediate loss of power or severe catalytic
converter damage. We recommend you do not operate the vehicle. Have
the vehicle serviced immediately.
- Electronic Stability Control OFF Warning Light
• If the ESC OFF warning light comes on continuously with the engine
running, a malfunction has been detected.
• If this light remains on after several ignition cycles, and the vehicle has
been driven several miles (kilometers) at speeds greater than 30 mph
(48 km/h), we recommend you drive to the nearest service center and
have the vehicle serviced immediately.
WHAT TO DO IN EMERGENCIES
86