flat tire JEEP GRAND CHEROKEE 2012 WK2 / 4.G Owner's Manual

Should a low tire condition occur on any of the four
active road tire(s), you should stop as soon as possible,
and inflate the low tire(s) that is “flashing” on the graphic
display to the vehicle’s recommended cold tire pressure.
The system will automatically update, the graphic dis-
play of the pressure value(s) will stop “flashing,” and the
Tire Pressure Monitoring Telltale Light will extinguish
once the updated tire pressure(s) have been received. The
vehicle may need to be driven for up to 20 minutes above
15 mph (24 km/h) to receive this information.
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 EVIC 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.NOTE:
Your system can be set to display pressure units
in PSI, kPa, or BAR.
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
506 STARTING AND OPERATING

Each axle’s GAWR is determined by the components in
the system with the lowest load carrying capacity (axle,
springs, tires, or wheels). Heavier axles or suspension
components, sometimes specified by purchasers for in-
creased durability, does not necessarily increase the ve-
hicle’s GVWR.
Tire Size
The tire size on the label represents the actual tire size on
your vehicle. Replacement tires must be equal to the load
capacity of this tire size.
Rim Size
This is the rim size that is appropriate for the tire size
listed.
Inflation Pressure
This is the cold tire inflation pressure for your vehicle for
all loading conditions up to full GAWR.
Curb Weight
The curb weight of a vehicle is defined as the total weight
of the vehicle with all fluids, including vehicle fuel, at full
capacity conditions, and with no occupants or cargo
loaded into the vehicle. The front and rear curb weight
values are determined by weighing your vehicle on a
commercial scale before any occupants or cargo are
added.
Loading
The actual total weight and the weight of the front and
rear of your vehicle at the ground can best be determined
by weighing it when it is loaded and ready for operation.
The entire vehicle should first be weighed on a commer-
cial scale to ensure that the GVWR has not been ex-
ceeded. The weight on the front and rear of the vehicle
should then be determined separately to be sure that the
load is properly distributed over front and rear axle.
Weighing the vehicle may show that the GAWR of either
522 STARTING AND OPERATING

Towing Requirements – Tires

Do not attempt to tow a trailer while using a compact
spare tire.
Proper tire inflation pressures are essential to the safe
and satisfactory operation of your vehicle. Refer to
“Tires – General Information” in “Starting and Oper-
ating” for proper tire inflation procedures.
Check the trailer tires for proper tire inflation pres-
sures before trailer usage.
Check for signs of tire wear or visible tire damage
before towing a trailer. Refer to “Tires – General
Information” in “Starting and Operating” for proper
inspection procedure.
When replacing tires, refer to “Tires – General Infor-
mation” in “Starting and Operating” for proper tire replacement procedures. Replacing tires with a higher
load carrying capacity will not increase the vehicle’s
GVWR and GAWR limits.
Towing Requirements – Trailer Brakes

Do
not interconnect the hydraulic brake system or
vacuum system of your vehicle with that of the trailer.
This could cause inadequate braking and possible
personal injury.
An electronically-actuated trailer brake controller is
required when towing a trailer with electronically-
actuated brakes. When towing a trailer equipped with
a hydraulic surge-actuated brake system, an electronic
brake controller is not required.
Trailer brakes are recommended for trailers over
1,000 lbs (454 kg), and required for trailers in excess of
2,000 lbs (907 kg).
5
STARTING AND OPERATING 533

Jacking Instructions
WARNING!
Carefully follow these tire changing warnings to
help prevent personal injury or damage to your
vehicle:
•Always park on a firm, level surface as far from
the edge of the roadway as possible before raising
the vehicle.
•Turn on the Hazard Warning flasher.
•Block the wheel diagonally opposite the wheel to
be raised.
•Set the parking brake firmly and set an automatic
transmission in PARK.
•Never start or run the engine with the vehicle on a
jack.(Continued)
WARNING! (Continued)
•Do not let anyone sit in the vehicle when it is on a
jack.
•Do not get under the vehicle when it is on a jack.
•Only use the jack in the positions indicated and
for lifting this vehicle during a tire change.
•If working on or near a roadway, be extremely
careful of motor traffic.
•To assure that spare tires, flat or inflated, are
securely stowed, spares must be stowed with the
valve stem facing the ground.
Jack Warning Label
552 WHAT TO DO IN EMERGENCIES

12. Remove the small center cap and securely store the
road wheel in the cargo area.
13. Have the aluminum road wheel and tire repaired as
soon as possible, properly secure the spare tire with the
special wing nut torqued to 3.7 ft-lbs (5 N·m), reinstall the
jack and tool kit foam tray, and latch the rear load floor
cover.WARNING!
A loose tire or jack, thrown forward in a collision or
hard stop could endanger the occupants of the ve-
hicle. Always stow the jack parts and the spare tire in
the places provided. Have the deflated (flat) tire
repaired or replaced immediately.
Road Tire Installation
1. Mount the road tire on the axle.
2. Install the remaining lug nuts with the cone shaped
end of the nut toward the wheel. Lightly tighten the lug
nuts.
Stowed Spare
558 WHAT TO DO IN EMERGENCIES

Temperature Grades
The temperature grades are A (the highest), B, and C,
representing the tire’s resistance to the generation of heat
and its ability to dissipate heat, when tested under
controlled conditions on a specified indoor laboratory
test wheel. Sustained high temperature can cause the
material of the tire to degenerate and reduce tire life, and
excessive temperature can lead to sudden tire failure. The
grade C corresponds to a level of performance, which all
passenger car tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades B and A repre-
sent higher levels of performance on the laboratory test
wheel, than the minimum required by law.WARNING!
The temperature grade for this tire is established for
a tire that is properly inflated and not overloaded.
Excessive speed, under-inflation, or excessive load-
ing, either separately or in combination, can cause
heat buildup and possible tire failure.
654 IF YOU NEED CONSUMER ASSISTANCE

Cargo Area Features...................... 268
Cargo Compartment ...................... 268
Light ............................. 270
Cargo Light ............................ 270
Cargo Tie-Downs ........................ 273
Cellular Phone ....................... 121,394
Center High Mounted Stop Light ............ 621
Certification Label ....................... 521
Chains, Tire ............................ 496
Changing A Flat Tire ..................... 549
Chart, Tire Sizing ........................ 479
Check Engine Light
(Malfunction Indicator Light) ............... 576
Checking Your Vehicle For Safety ............. 94
Checks, Safety ........................... 94
Child Restraint .................... 81,84,86,89
Child Restraint Tether Anchors .............85,86
Child Safety Locks ........................ 35
Clean Air Gasoline ....................... 510 Cleaning
Wheels ............................ 607
Climate Control ......................... 394
Clock ............................. 330,339
Cold Weather Operation ................... 417
Compact Disc (CD) Maintenance ............. 393
Compact Spare Tire ...................... 491
Compass .............................. 317
Compass Calibration ..................... 319
Compass Variance ....................... 318
Computer, Trip/Travel .................... 314
Connector UCI .............................. 353
Universal Consumer Interface (UCI) ....... 353
Conserving Fuel ......................... 311
Console, Overhead ....................... 240
Contract, Service ........................ 649
658 INDEX

Illuminated Entry........................ 23
Immobilizer (Sentry Key) ................... 18
Infant Restraint ........................ 81,82
Inflation Pressure Tires .................... 488
Information Center, Vehicle ................. 295
Inside Rearview Mirror ................... 107
Instrument Cluster .................... 284,285
Instrument Panel and Controls .............. 283
Instrument Panel Lens Cleaning ............. 609
Integrated Power Module (Fuses) ............ 610
Interior Appearance Care .................. 608
Intermittent Wipers (Delay Wipers) ........... 190
Introduction ............................. 4
Inverter, Power ......................... 262
Jack Location ........................... 550
Jack Operation ....................... 549,552
Jacking Instructions ...................... 552
Jump Starting .......................... 559 Key-In Reminder
......................... 18
Key, Programming ........................ 20
Key, Replacement ........................ 19
Key, Sentry (Immobilizer) ................... 18
Keyless Enter-N-Go ................. 37,317,414
Keyless Entry System ...................... 24
Keyless Go .......................... 14,317
Keys ................................. 14
Lap/Shoulder Belts ....................... 52
LATCH
(Lower Anchors and Tether for CHildren) .....85,86
Latches ................................ 98
Lead Free Gasoline ...................... 509
Leaks, Fluid ............................ 98
Life of Tires ............................ 494
Liftgate ................................ 44
Liftgate Flipper Glass ...................... 45
Liftgate Window Wiper/Washer ............. 274
664 INDEX

Supplemental Restraint System - Airbag........ 66
Suspension, Air ......................... 448
Sway Control, Trailer ..................... 470
Synthetic Engine Oil ...................... 581
System, Remote Starting .................... 29
Tachometer ............................ 285
Telescoping Steering Column .............194,195
Temperature Control, Automatic (ATC) ........ 398
Temperature Gauge, Engine Coolant .......... 294
Tether Anchor, Child Restraint ............... 85
Text Messaging ......................... 143
Tie Down Hooks, Cargo ................... 273
Tilt Steering Column ................... 194,195
Tire and Loading Information Placard ......... 483
Tire Identification Number (TIN) ............. 481
Tire Markings .......................... 477
Tire Safety Information .................... 477 Tires ............................
98,487,653
Air Pressure ........................ 488
Chains ............................ 496
Changing .......................... 549
Compact Spare ...................... 491
General Information .................. 487
High Speed ......................... 490
Inflation Pressures .................... 488
Jacking ............................ 549
Life of Tires ........................ 494
Load Capacity .................... 483,484
Pressure Monitor System (TPMS) ......... 499
Pressure Warning Light ................ 288
Quality Grading ..................... 653
Radial ............................ 490
Replacement ........................ 495
Rotation ........................... 498
Safety ............................. 477
Sizes ............................. 479
672 INDEX