2015 JEEP GRAND CHEROKEE snow chains

mode. This mode should be used for most driving
situations. ESC should only be turned to “Partial Off”
mode for specific reasons as noted below.
Partial Off
This mode is entered by momentarily pressing the “ESC
OFF” switch. When in “Partial Off” mode, the TCS
portion of ESC, except for the BLD feature described in
the TCS section, has been disabled and the “ESC Off
Indicator Light” will be illuminated. All other stability
features of ESC function normally. This mode is intended
to be used if the vehicle is in deep snow, sand, or gravel
conditions and more wheel spin than ESC would nor-
mally allow is required to gain traction. To turn ESC on
again, momentarily press the “ESC OFF” switch. This
will restore the normal “ESC On” mode of operation.
NOTE:To improve the vehicle’s traction when driving
with snow chains, or starting off in deep snow, sand, or
gravel, it may be desirable to switch to the “Partial Off”
mode by pressing the “ESC OFF” switch. Once the
situation requiring ESC to be switched to the “Partial
Off” mode is overcome, turn ESC back on by momen-
tarily pressing the “ESC OFF” switch. This may be done
while the vehicle is in motion.
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STARTING AND OPERATING 479

WARNING!(Continued)
•Never use a tire with a smaller load index or
capacity, other than what was originally equipped
on your vehicle. Using a tire with a smaller load
index could result in tire overloading and failure.
You could lose control and have a collision.
•Failure to equip your vehicle with tires having
adequate speed capability can result in sudden tire
failure and loss of vehicle control.
CAUTION!
Replacing original tires with tires of a different size
may result in false speedometer and odometer read-
ings.
TIRE CHAINS (TRACTION DEVICES)
Use of traction devices require sufficient tire-to-body
clearance. Follow these recommendations to guard
against damage.
•Traction device must be of proper size for the tire, as
recommended by the traction device manufacturer.
•Install on Rear Tires Only
•Due to limited clearance, Thule XG-12 Pro or equiva-
lent is recommended on P245/70/R17, P265/60R18 or
265/50R20 tires.
WARNING!
Using tires of different size and type (M+S, Snow)
between front and rear axles can cause unpredictable
handling. You could lose control and have a collision.
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STARTING AND OPERATING 517

SERVICE TPM SYSTEM Warning
The Tire Pressure Monitoring Telltale Light will flash on
and off for 75 seconds, and remain on solid when a
system fault is detected. The system fault will also sound
a chime. The DID will display a “SERVICE TPM SYS-
TEM” message for a minimum of five seconds. This
message is then followed by a graphic display, with “- -“
in place of the pressure value(s), indicating which Tire
Pressure Monitoring Sensor(s) is not being received.
If the ignition switch is cycled, this sequence will repeat,
providing the system fault still exists. If the system fault
no longer exists, the Tire Pressure Monitoring Telltale
Light will no longer flash, the#SERVICE TPM SYSTEM#
message will not be present, and a pressure value will be
displayed instead of dashes. A system fault can occur by
any of the following:
1. Jamming due to electronic devices or driving next to
facilities emitting the same Radio Frequencies as the
TPM sensors.
2. Installing some form of aftermarket window tinting
that affects radio wave signals.
3. Lots of snow or ice around the wheels or wheel
housings.
4. Using tire chains on the vehicle.
5. Using wheels/tires not equipped with TPM sensors.
The DID will also display a#SERVICE TPM SYSTEM#
message for a minimum of five seconds when a system
fault is detected possibly related to an incorrect sensor
location fault. In this case, the#SERVICE TPM SYSTEM#
message is then followed by a graphic display, with
pressure values still shown. This indicates the pressure
values are still being received from the TPM Sensors but
they may not be located in the correct vehicle position.
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STARTING AND OPERATING 525

SENTRY KEY®
FCC General Information..................18
Key Programming.......................18
Sentry Key (Immobilizer)....................16
Sentry Key Replacement.....................17
Service Assistance.........................685
Service Contract..........................687
Service Manuals..........................690
Shifting................................426
Automatic Transmission..................426
Shoulder Belts............................53
Signals, Turn.............................112
SmartBeams.............................168
Snow Chains (Tire Chains)...................517
Snow Plow..............................556
Snow Tires..............................510
Spare Tire...............................512
Spark Plugs.............................670
Speed Control (Cruise Control)................188
Speedometer.............................293
Starting.................................24
Automatic Transmission..................421
Cold Weather..........................424
Engine Block Heater.....................426
Engine Fails to Start.....................424
Remote...............................24
Starting and Operating.....................421
Starting Procedures........................421
Steering
Power...............................466
Tilt Column...........................184
Wheel, Heated.........................186
Wheel, Tilt............................184
Steering Wheel Audio Controls...............381
Steering Wheel Mounted Sound System Controls . . .381
Storage................................273
Storage, Vehicle...........................394
Storing Your Vehicle.......................65910
INDEX 709

Sunglasses Storage........................247
Sun Roof...............................257
Sun Visor Extension.......................134
Supplemental Restraint System - Airbag..........68
Suspension, Air...........................450
Sway Control, Trailer.......................480
Synthetic Engine Oil.......................609
System, Remote Starting.....................24
Tachometer..............................292
Telescoping Steering Column.................184
Temperature Control, Automatic (ATC)..........392
Temperature Gauge, Engine Coolant............294
Tie Down Hooks, Cargo....................280
Tilt Steering Column.......................184
Tire and Loading Information Placard...........500
Tire Markings............................493
Ti re s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2
Aging (Life of Tires).....................515
Air Pressure...........................505
Chains...............................517
Compact Spare.........................512
General Information.....................505
High Speed...........................508
Inflation Pressures.......................506
Life of Tires...........................515
Load Capacity.........................500
Pressure Monitor System (TPMS)............520
Pressure Warning Light...................297
Quality Grading........................691
Radial...............................508
Replacement...........................515
Rotation..............................518
Safety...............................493
Sizes................................494
Snow Tires............................510
Spare Tire.............................573
Spinning.............................514
710 INDEX