2012 JEEP GRAND CHEROKEE ECU

WARNING! (Continued)
•The jack is designed to be used as a tool for
changing tires only. The jack should not be used to
lift the vehicle for service purposes. The vehicle
should be jacked on a firm level surface only.
Avoid ice or slippery areas.
Jack Location
The scissor-type jack and tire changing tools are located
in rear cargo area, below the load floor.
Spare Tire Stowage
The spare tire is stowed under the load floor in the rear
cargo area and is secured to the body with a special wing
nut.
Jack Storage Location
550 WHAT TO DO IN EMERGENCIES

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

If the vehicle’s battery is discharged, refer to “Shift Lever
Override” in “What to Do in Emergencies” for instruc-
tions on shifting the automatic transmission out of the
PARK position for towing.
CAUTION!
Do not attempt to use sling type equipment when
towing. When securing the vehicle to a flat bed truck,
do not attach to front or rear suspension components.
Damage to your vehicle may result from improper
towing.
Towing Without The Ignition Key Fob
Special care must be taken when the vehicle is towed
with the ignition in the LOCK/OFF position. The only
approved method of towing without the ignition key is
with a flatbed truck. Proper towing equipment is neces-
sary to prevent damage to the vehicle.
Two-Wheel Drive Models
The manufacturer recommends towing your vehicle with
all four wheelsOFFthe ground using a flatbed.
If flatbed equipment is not available, and the transmis-
sion is operable, the vehicle may be towed (with rear
wheels on the ground) with the transmission in NEU-
TRAL. Speed must not exceed 30 mph (48 km/h) and the
distance must not exceed 15 miles (24 km).
CAUTION!
Towing faster than 30 mph (48 km/h) or farther than
15 miles (24 km) with rear wheels on the ground can
cause severe damage to the transmission. Such dam-
age is not covered by the New Vehicle Limited
Warranty.
568 WHAT TO DO IN EMERGENCIES

WARNING! (Continued)
•To avoid contamination from foreign matter or
moisture, use only new brake fluid or fluid that
has been in a tightly closed container. Keep the
master cylinder reservoir cap secured at all times.
Brake fluid in a open container absorbs moisture
from the air resulting in a lower boiling point.
This may cause it to boil unexpectedly during hard
or prolonged braking, resulting in sudden brake
failure. This could result in a collision.
•Overfilling the brake fluid reservoir can result in
spilling brake fluid on hot engine parts, causing
the brake fluid to catch fire. Brake fluid can also
damage painted and vinyl surfaces, care should be
taken to avoid its contact with these surfaces.(Continued)
WARNING! (Continued)
•Do not allow petroleum based fluid to contami-
nate the brake fluid. Brake seal components could
be damaged, causing partial or complete brake
failure. This could result in a collision.
Front/Rear Axle Fluid
For normal service, periodic fluid level checks are not
required. When the vehicle is serviced for other reasons
the exterior surfaces of the axle assembly should be
inspected. If gear oil leakage is suspected inspect the
fluid level. Refer to “Fluids, Lubricants, and Genuine
Parts” in “Maintaining Your Vehicle” for further informa-
tion.
Front Axle Fluid Level Check
The front axle oil level needs to be between 1/8 in (3 mm)
below the bottom of the fill hole and the bottom of the fill
hole.
7
MAINTAINING YOUR VEHICLE 599

Adaptive Cruise Control (ACC) (Cruise Control) . . 201
Adding Fuel........................... 517
Additives, Fuel ......................... 512
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 582
Air Conditioner Maintenance ............... 585
Air Conditioning ........................ 394
Air Conditioning Controls ................. 394
Air Conditioning Refrigerant ............... 586
Air Conditioning System ................394,398
Air Conditioning, Operating Tips ............ 404
Air Filter .............................. 582
Air Pressure, Tires ....................... 488
Air Suspension ......................... 448
Airbag .............................. 66,75
Airbag Deployment ....................... 77
Airbag Light ..................... 74,79,96,285
Airbag Maintenance ....................... 78
Airbag, Side ........................ 70,72,75
Airbag, Window (Side Curtain) ...........70,72,75Alarm (Security Alarm)
.................20,293
Alarm, Panic ............................ 26
Alterations/Modifications, Vehicle ............. 9
Antenna, Satellite Radio ................... 350
Anti-Lock Brake System (ABS) .............. 464
Anti-Lock Warning Light .................. 292
Anti-Theft System ....................... 293
Antifreeze (Engine Coolant) ................ 622
Appearance Care ........................ 604
Assist, Hill Start ........................ 471
Assistance Towing ....................... 135
Auto Down Power Windows ................ 42
Automatic Dimming Mirror ................ 107
Automatic Door Locks ..................... 35
Automatic Headlights .................... 181
Automatic Temperature Control (ATC) ......... 398
Automatic Transmission .............421,429,601
Adding Fluid ....................... 604
Fluid and Filter Changes ............... 601
656 INDEX

Light Bulbs............................. 98
Lights .............................. 98,180
Airbag ...................... 74,79,96,285
Anti-Lock .......................... 292
Automatic Headlights ................. 181
Back-Up ........................... 620
Brake Assist Warning .................. 476
Brake Warning ...................... 290
Bulb Replacement .................... 617
Cargo ............................. 270
Center Mounted Stop .................. 621
Daytime Running .................... 183
Dimmer Switch, Headlight .............. 180
Electronic Stability Program (ESP) Indicator . . 476
Exterior ............................ 98
Fog ............................ 287,619
Fuses ............................. 610
Hazard Warning Flasher ............... 548
Headlights ...................... 617,618Headlights On With Wipers
............. 181
High Beam Indicator .................. 287
Hill Descent Control Indicator ........... 287
Illuminated Entry ..................... 23
Low Fuel .......................... 306
Malfunction Indicator (Check Engine) ...... 285
Map Reading ....................... 186
Reading ........................ 186,240
Rear Servicing ....................... 620
Rear Tail ........................... 620
Seat Belt Reminder ................... 290
Security Alarm (Theft Alarm) ............ 293
Service ............................ 617
Service Engine Soon
(Malfunction Indicator) ................ 285
Side Marker ........................ 620
SmartBeams ........................ 182
Tire Pressure Monitoring (TPMS) ......... 288
Tow/Haul Indicator .................. 287
10
INDEX 665

Schedule, Maintenance.................... 628
Seat Belt Reminder ....................... 65
Seat Belts ............................ 52,96
Adjustable Upper Shoulder Anchorage ...... 58
And Pregnant Women .................. 66
Child Restraint ................... 81,82,89
Extender ........................... 66
Front Seat .......................... 52
Inspection .......................... 96
Maintenance ........................ 609
Pretensioners ........................ 61
Reminder .......................... 290
Shoulder Belt Anchorage ................ 58
Untwisting Procedure .................. 57
Seats ................................. 156
Adjustment ......................... 161
Cleaning ........................... 608
Easy Entry ......................... 177
Memory ........................... 174 Power
.......................... 156,158
Rear Folding ........................ 171
Reclining .......................... 162
Security Against Theft ..................... 20
Security Alarm (Theft Alarm) .............20,293
Selec-Terrain ........................... 446
Selection of Oil ......................... 580
Sentry Key (Immobilizer) ................... 18
Sentry Key Programming ................... 20
Sentry Key Replacement ................... 19
Service Assistance ....................... 647
Service Contract ......................... 649
Service Engine Soon Light
(Malfunction Indicator) .................... 285
Service Manuals ........................ 651
Setting the Clock ..................... 330,339
Settings, Personal ........................ 319
Shift Lever Override ...................... 565
670 INDEX