2015 JEEP GRAND CHEROKEE transmission

2. Shift the transmission into PARK, if possible. If not,
shift the transmission to NEUTRAL.
3. Press and hold the ignition switch until the engine
turns OFF.
4. Wait approximately 30 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.When To Use TOW Mode
When driving in hilly areas, towing a trailer, carrying a
heavy load, etc., and frequent transmission shifting oc-
curs, select TOW mode, using the rotary switch on the
center console. Selecting TOW mode will improve per-
formance and reduce the potential for transmission over-
heating or failure due to excessive shifting. Refer to
“Selec-Track™” in “Starting And Operating” for further
information.
PADDLE SHIFT MODE
Paddle Shift mode is a driver-interactive transmission
feature providing manual shift control, giving you more
control of the vehicle. Paddle Shift allows you to maxi-
mize engine braking, eliminate undesirable upshifts and
downshifts, and improve overall vehicle performance.
This system can also provide you with more control
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during passing, city driving, cold slippery conditions,
mountain driving, trailer towing, and many other situa-
tions.
Operation
When the transmission is in DRIVE or SPORT mode, it
will operate automatically, shifting between the eight
available gears. To activate Paddle Shift mode, simply tap
one of the steering wheel-mounted shift paddles (+/-)
while in DRIVE or SPORT mode. Tapping (-) to enter
Paddle Shift mode will downshift the transmission to the
next lower gear, while using (+) to enter Paddle Shift
mode will retain the current gear. When Paddle Shift
mode is active, the current transmission gear is displayed
in the instrument cluster.
In Paddle Shift mode, the transmission will shift up or
down when (+/-) is manually selected by the driver,
unless an engine lugging or overspeed condition wouldresult. It will remain in the selected gear until another
upshift or downshift is chosen, except as described
below.
•Normally, in Paddle Shift mode, the transmission will
automatically shift up when maximum engine speed is
reached. If, however, Paddle Shift is engaged while in
SPORT or TRACK mode, the transmission will remain
in the selected gear even when maximum engine
speed is reached. The transmission will upshift only
when commanded by the driver.
•The transmission will automatically downshift as the
vehicle slows (to prevent engine lugging) and will
display the current gear.
•The transmission will automatically downshift to first
gear when coming to a stop. After a stop, the driver
should manually upshift (+) the transmission as the
vehicle is accelerated.
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•You can start out, from a stop, in first or second gear
(or third gear, in SNOW mode). Tapping (+) (at a stop)
will allow starting in second gear. Starting out in
second gear can be helpful in snowy or icy conditions.
•If a requested downshift would cause the engine to
over-speed, that shift will not occur.
•The system will ignore attempts to upshift at too low
of a vehicle speed.
•Holding the (-) paddle depressed will downshift the
transmission to the lowest gear possible at the current
speed.
•Transmission shifting will be more noticeable when
Paddle Shift mode is enabled.
•The system may revert to automatic shift mode if a
fault or overheat condition is detected.To disengage Paddle Shift mode, press and hold the (+)
shift paddle until “D” or “S” is once again indicated in
the instrument cluster. You can shift in or out of Paddle
Shift mode at any time without taking your foot off the
accelerator pedal.
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 a collision or
personal injury.
SELEC-TRACK® — IF EQUIPPED
Description
Selec-Track™ combines the capabilities of the vehicle
control systems, along with driver input, to provide the
best performance for all terrains.
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Selec-Track™ consists of the following positions:
•Sport– Dry weather, on-road calibration. Performance
based tuning that provides a rear wheel drive feel but
with improved handling and acceleration over a two-
wheel drive vehicle. The customer has the option of
going to partial ESC. The active suspension systemwill be in Firm mode and the transmission will be in
SPORT shift mode then and a green flag will light up
in the instrument cluster. The transmission will pro-
vide a more aggressive shifting pattern (Refer to
“Paddle Shift Mode” in “Starting And Operating” for
further information). This feature will reset to AUTO
on an ignition cycle.
•Snow– Tuning set for additional stability in inclement
weather. Use on and off road on loose traction surfaces
such as snow. When in Snow mode (depending on
certain operating conditions), the transmission may
use second gear (rather than first gear) during
launches, to minimize wheel slippage. This feature will
reset to AUTO upon an ignition cycle.
•Auto– Fully automatic full time four-wheel drive
operation can be used on and off road. Balances
Selec-Track™ Switch
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traction with seamless steering feel to provide im-
proved handling and acceleration over two-wheel
drive vehicles. The active suspension system will be in
Touring Mode.
•Track– Track road calibration for use on high traction
surfaces. Driveline is maximized for traction. Some
binding may be felt on less forgiving surfaces. The
electronic brake controls are set to Partial OFF to limit
traction control management of throttle and wheel
spin.
•The transmission will be in SPORT shift mode and
provide a more aggressive shifting pattern. Refer to
“Paddle Shift Mode” in “Starting And Operating”
for further information.
•The customer has the option of going to FULL OFF
with no interaction from the ESC System. The active
suspension system will be in Full Firm mode.
•This feature will reset to AUTO on an ignition cycle.•To w– Use this mode for towing. Vehicle suspension
will go to Firm mode. Trailer sway control is enabled
in the ESC system. The terrain switch will remain in
this position through an ignition cycle until the cus-
tomer cycles into another position. This feature will
reset to AUTO upon an ignition cycle.
Active Damping System
This vehicle is equipped with an electronic controlled
damping system. This system reduces body roll and pitch
in many driving situations including cornering, accelera-
tion and braking. There are 3 modes:
•Touring Mode(Available in terrain positions AUTO
and SNOW) — Used during highway speeds where a
touring suspension feel is desired.
•Firm Mode(Available in terrain positions SPORT and
TOW) — Provides a firm suspension for better han-
dling.
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NOTE:
•When the parking brake is applied and the transmis-
sion is placed in gear, the “Brake” Warning Light will
flash. If vehicle speed is detected, a chime will sound
to alert the driver. Fully release the parking brake
before attempting to move the vehicle.
•This light only shows that the parking brake is ap-
plied. It does not show the degree of brake application.
When parking on a hill, it is important to turn the front
wheels toward the curb on a downhill grade and away
from the curb on an uphill grade. Apply the parking
brake before placing the shift lever in PARK, otherwise
the load on the transmission locking mechanism may
make it difficult to move the shift lever out of PARK. The
parking brake should always be applied whenever the
driver is not in the vehicle.WARNING!
•Never use the PARK position as a substitute for the
parking brake. Always apply the parking brake
fully when parked to guard against vehicle move-
ment and possible injury or damage.
•When leaving the vehicle, always remove the Key
Fob from the ignition and lock your vehicle.
•Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Allowing children to
be in a vehicle unattended is dangerous for a
number of reasons. A child or others could be
seriously or fatally injured. Children should be
warned not to touch the parking brake, brake pedal
or the shift lever.
•When leaving the vehicle, always make sure the
keyless ignition node is in the “OFF” mode, re-
move the Key Fob from the vehicle and lock the
vehicle.
(Continued)
424 STARTING AND OPERATING

WARNING!(Continued)
•Do not leave the Key Fob in or near the vehicle or
in a location accessible to children, and do not
leave the ignition of a vehicle equipped with
Keyless Enter-N-Go™ in the ACC or ON/RUN
mode. A child could operate power windows, other
controls, or move the vehicle.
•Be sure the parking brake is fully disengaged
before driving; failure to do so can lead to brake
failure and a collision.
•Always fully apply the parking brake when leav-
ing your vehicle, or it may roll and cause damage or
injury. Also be certain to leave the transmission in
PARK. Failure to do so may allow the vehicle to roll
and cause damage or injury.
CAUTION!
If the “Brake” Warning Light remains on with the
parking brake released, a brake system malfunction
is indicated. Have the brake system serviced by an
authorized dealer immediately.
BRAKE SYSTEM
Your vehicle is equipped with dual hydraulic brake
systems. If either of the two hydraulic systems loses
normal capability, the remaining system will still func-
tion. However, there will be some loss of overall braking
effectiveness. You may notice increased pedal travel
during application, greater pedal force required to slow
or stop, and potential activation of the “Brake System
Warning Light.”
In the event power assist is lost for any reason (i.e.,
repeated brake applications with the engine off) the
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Trailer Towing Weights (Maximum Trailer Weight Ratings)
Engine/
TransmissionGCWR (Gross
Combined Wt. Rat-
ing)Frontal AreaMax. GTW (Gross
Trailer Wt.)Max. Trailer Tongue
Wt. (See Note)
6.4L Automatic
12,600 lbs (5 715 kg)55 sq ft (5.11 sq m) 7,200 lbs (3 265 kg) 720 lbs (327 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, and
should never exceed the weight referenced on the Tire
and Loading Information placard. Refer to “Tire–
Safety Information” in “Starting and Operating” for
further information.•The manufacturer does not recommend using the run
flat feature while driving a vehicle loaded at full
capacity or towing a trailer.
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