2012 JEEP GRAND CHEROKEE automatic transmission

CAUTION!
Damage to the transmission may occur if the follow-
ing precautions are not observed:
•Shift into PARK only after the vehicle has come to
a complete stop.
•Shift into or out of REVERSE only after the
vehicle has come to a complete stop and the engine
is at idle speed.
•Do not shift from REVERSE, PARK, or NEUTRAL
into any forward gear when the engine is above
idle speed.
•Before shifting into any gear, make sure your foot
is firmly on the brake pedal.
Using Fob With Integrated Key (Tip Start)
NOTE:Normal starting of either a cold or a warm
engine is obtained without pumping or pressing the
accelerator pedal. Do not
press the accelerator. Use the Fob with Integrated
Key to briefly turn the ignition switch to the START
position and release it as soon as the starter engages. The
starter motor will continue to run, and it will disengage
automatically when the engine is running. If the engine
fails to start, the starter will disengage automatically in
10 seconds. If this occurs, turn the ignition switch to the
LOCK position, wait 10 to 15 seconds, then repeat the
“Normal Starting” procedure.
Keyless Enter-N-Go
This feature allows the driver to oper-
ate the ignition switch with the push
of a button, as long as the ENGINE
START/STOP button is installed and
the Remote Keyless Entry (RKE) trans-
mitter is in the passenger compart-
ment.
414 STARTING AND OPERATING

Installing And Removing The ENGINE
START/STOP Button
Installing The Button
1. Remove the key fob from the ignition switch.
2. Insert the ENGINE START/STOP button into the
ignition switch with the lettering facing up and readable.
3. Press firmly on the center of the button to secure it into
position.
Removing The Button
1. The ENGINE START/STOP button can be removed
from the ignition switch for key fob use.
2. Insert the metal part of the emergency key under the
chrome bezel at the 6 o’clock position and gently pry the
button loose.NOTE:
The ENGINE START/STOP button should only
be removed or inserted with the ignition in the LOCK
position (OFF position for Keyless Enter-N-Go).
Normal Starting
Using The ENGINE START/STOP Button
NOTE: Normal starting of either a cold or a warm
engine is obtained without pumping or pressing the
accelerator pedal.
To start the engine, the transmission must be in PARK or
NEUTRAL. Press and hold the brake pedal while press-
ing the ENGINE START/STOP button once. The system
takes over and attempts to start the vehicle. If the vehicle
fails to start, the starter will disengage automatically after
10 seconds. If you wish to stop the cranking of the engine
prior to the engine starting, press the button again.
5
STARTING AND OPERATING 415

To Turn Off The Engine Using ENGINE
START/STOP Button
1. Place the shift lever in PARK, then press and release
the ENGINE START/STOP button.
2. The ignition switch will return to the OFF position.
3. If the shift lever is not in PARK, the ENGINE START/
STOP button must be held for two seconds and vehicle
speed must be above 5 mph (8 km/h) before the engine
will shut off. The ignition switch position will remain in
the ACC position until the shift lever is in PARK and the
button is pressed twice to the OFF position. If the shift
lever is not in PARK and the ENGINE START/STOP
button is pressed once, the EVIC (if equipped) will
display a “Vehicle Not In Park” message and the engine
will remain running. Never leave a vehicle out of the
PARK position, or it could roll.NOTE:
If the ignition switch is left in the ACC or RUN
(engine not running) position and the transmission is in
PARK, the system will automatically time out after
30 minutes of inactivity and the ignition will switch to the
OFF position.
Keyless Enter-N-Go Functions – With Driver ’s Foot
OFF The Brake Pedal (In PARK Or NEUTRAL
Position)
The Keyless Enter-N-Go feature operates similar to an
ignition switch. It has four positions, OFF, ACC, RUN
and START. To change the ignition switch positions
without starting the vehicle and use the accessories
follow these steps.
•Starting with the ignition switch in the OFF position:
•Press the ENGINE START/STOP button once to
change the ignition switch to the ACC position (EVIC
displays “IGNITION MODE ACCESSORY”),
416 STARTING AND OPERATING

The engine block heater cord is located:
•3.6L Engine – coiled and strapped to the engine oil
dipstick tube.
•5.7L Engine – bundled and fastened to the injector
harness.
The engine block heater must be plugged in at least one
hour to have an adequate warming effect on the engine.
WARNING!
Remember to disconnect the engine block heater
cord before driving. Damage to the 110-115 Volt
electrical cord could cause electrocution.
AUTOMATIC TRANSMISSION
CAUTION!
Damage to the transmission may occur if the follow-
ing precautions are not observed:
•Shift into PARK only after the vehicle has come to
a complete stop.
•Shift into or out of REVERSE only after the
vehicle has come to a complete stop and the engine
is at idle speed.
•Do not shift between PARK, REVERSE, NEU-
TRAL, or DRIVE when the engine is above idle
speed.
•Before shifting into any gear, make sure your foot
is firmly pressing the brake pedal.
5
STARTING AND OPERATING 419

WARNING! (Continued)
•Children should be warned not to touch the park-
ing brake, brake pedal or the shift lever. Do not
leave the key fob in or near the vehicle, and do not
leave Keyless Enter-N-Go in the ACC or ON/RUN
mode. A child could operate power windows,
other controls, or move the vehicle.
Key Ignition Park Interlock
This vehicle is equipped with a Key Ignition Park Inter-
lock which requires the shift lever to be placed in PARK
before the ignition switch can be turned to the LOCK/
OFF position. The key fob can only be removed from the
ignition when the ignition is in the LOCK/OFF position
and once removed the shift lever is locked in PARK.
Brake/Transmission Shift Interlock System
This vehicle is equipped with a Brake Transmission Shift
Interlock System (BTSI) that holds the shift lever in thePARK position unless the brakes are applied. To move
the shift lever out of the PARK position, the ignition
switch must be turned to the ON/RUN position (engine
running or not) and the brake pedal must be pressed.
Five-Speed Automatic Transmission
(3.6L Engine) — If Equipped
The shift lever position display (located in the instrument
panel cluster) indicates the transmission gear range. You
must press the brake pedal to move the shift lever out of
the PARK position (refer to “Brake/Transmission Shift
Interlock System” in this section). To drive, move the shift
lever from PARK or NEUTRAL to the DRIVE position.
The electronically-controlled transmission provides a
precise shift schedule. The transmission electronics are
self-calibrating; therefore, the first few shifts on a new
vehicle may be somewhat abrupt. This is a normal
condition, and precision shifts will develop within a few
hundred miles (kilometers).
5
STARTING AND OPERATING 421

DRIVE
This range should be used for most city and highway
driving. It provides the smoothest upshifts and down-
shifts, and the best fuel economy. The transmission
automatically upshifts through underdrive first, second,
and third gears, direct fourth gear and overdrive fifth
gear. The DRIVE position provides optimum driving
characteristics under all normal operating conditions.
When frequent transmission shifting occurs (such as
when operating the vehicle under heavy loading condi-
tions, in hilly terrain, traveling into strong head winds, or
while towing heavy trailers), use the Electronic Range
Select (ERS) feature (refer to “Electronic Range Select
(ERS)” in this section) to select a lower gear range. Under
these conditions, using a lower gear range will improve
performance and extend transmission life by reducing
excessive shifting and heat buildup.
Transmission Limp Home Mode
Transmission function is monitored electronically for
abnormal conditions. If a condition is detected that could
result in transmission damage, Transmission Limp Home
Mode is activated. In this mode, the transmission remains
in the current gear until the vehicle is brought to a stop.
After the vehicle has stopped, the transmission will
remain in second gear regardless of which forward gear
is selected. PARK, REVERSE, and NEUTRAL will con-
tinue to operate. The Malfunction Indicator Light (MIL)
may be illuminated. Limp Home Mode allows the vehicle
to be driven to an authorized dealer for service without
damaging the transmission.
In the event of a momentary problem, the transmission
can be reset to regain all forward gears by performing the
following steps:
1. Stop the vehicle.
2. Shift the transmission into PARK.
5
STARTING AND OPERATING 427

3. Turn the ignition switch to the LOCK/OFF position.
4. Wait approximately 10 seconds.
5. Restart the engine.
6. Shift into the desired gear range. If the problem is no
longer detected, the transmission will return to normal
operation.
NOTE:Even if the transmission can be reset, we recom-
mend that you visit your authorized dealer at your
earliest possible convenience. Your authorized dealer has
diagnostic equipment to determine if the problem could
recur.
If the transmission cannot be reset, authorized dealer
service is required.Electronic Range Select (ERS) Operation
The Electronic Range Select (ERS) shift control allows the
driver to limit the highest available gear when the shift
lever is in the DRIVE position. For example, if you shift
the transmission into 3 (third gear), the transmission will
never shift above third gear, but will shift down into
second and first gear normally.
You can switch between DRIVE and ERS mode at any
vehicle speed. When the shift lever is in the DRIVE
position, the transmission will operate automatically,
shifting between all available gears. Tapping the shift
lever to the left (-) will downshift the transmission,
activate ERS mode, display the current gear in the
instrument cluster, and maintain that gear as the top
available gear. Once in ERS mode, tapping the shift lever
to the left (-) or right (+) will change the top available
gear.
428 STARTING AND OPERATING

To exit ERS mode, simply press and hold the shift lever to
the right (+) until “D” is once again displayed in the shift
lever position indicator in the instrument cluster.
WARNING!
Do not downshift for additional engine braking on a
slippery surface. The drive wheels could lose their
grip and the vehicle could skid, causing an accident
or personal injury.
Screen Display12 34D
Actual Gear(s)
Allowed 1 1-2 1-3 1-4 1-5
NOTE: To select the proper gear position for maximum
deceleration (engine braking), simply press and hold the
shift lever to the left (-). The transmission will shift to the
range from which the vehicle can best be slowed down.
Overdrive Operation
The automatic transmission includes an electronically
controlled Overdrive (fifth gear). The transmission will
automatically shift into the Overdrive gear if the follow-
ing conditions are present:
•the shift lever is in the DRIVE position,
•vehicle speed is sufficiently high, and
•the driver is not heavily pressing the accelerator.
Six-Speed Automatic Transmission
(5.7L Engine) — If Equipped
The shift lever position display (located in the instrument
panel cluster) indicates the transmission gear range. You
must press the brake pedal to move the shift lever out of
the PARK position (refer to “Brake/Transmission Shift
Interlock System” in this section). To drive, move the shift
lever from PARK or NEUTRAL to the DRIVE position.
5
STARTING AND OPERATING 429