2009 JEEP GRAND CHEROKEE TPMS

If the ignition key 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, theCHECK 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 EVIC will also display aCHECK TPM SYSTEM
message for three seconds when a system fault is de-
tected possibly related to the trigger component. In this
case, theCHECK TPM SYSTEMmessage is then fol-
lowed by a graphic display, with pressure values still
shown. This indicates the pressure values are still being
received from the TPM Sensors. However, the system still
needs to be serviced as long as theCHECK TPM
SYSTEMmessage exists.
NOTE:
•If your vehicle is equipped with a matching full-size
spare wheel and tire assembly, it has a tire pressure
monitoring sensor, and can be monitored by the Tire
Pressure Monitoring System (TPMS). In the event that
the matching full-size spare tire is swapped with a low
pressure road tire, the next ignition key cycle will still
show the Tire Pressure Monitoring Telltale Light to be
ON, a chime to sound, a Low Pressure message to
appear in the EVIC, and the graphic display will still
STARTING AND OPERATING 353
5

show the low tire pressure value “flashing.” Driving
the vehicle for up to 20 minutes above 15 mph
(24 km/h) will turn OFF the Tire Pressure Monitoring
Telltale Light as long as none of road tires are below
the low pressure warning threshold. The EVIC will
also display a “SPARE LOW PRESSURE” message,
and the graphic display will show a tire pressure value
in place of the “flashing” low tire pressure value.
•If your vehicle is not equipped with a matching
full-size spare wheel and tire assembly, it does not
have a tire pressure monitoring sensor in the spare tire.
The TPMS will not be able to monitor the tire pressure.
If you install the spare tire in place of a road tire that
has a pressure below the low-pressure warning limit,
upon the next ignition key cycle, the Tire Pressure
Monitoring Telltale Light will remain ON, a chime will
sound, and the EVIC will still display a “flashing”
pressure value in the graphic display. After driving the
vehicle for up to 20 minutes above 15 mph (24 km/h),the Tire Pressure Monitoring Telltale Light will flash
on and off for 75 seconds and then remain on solid. In
addition, the EVIC will display a “CHECK TPM
SYSTEMmessage for three seconds and then display
dashes (- -) in place of the pressure value. For each
subsequent ignition key cycle, a chime will sound, the
Tire Pressure Monitoring Telltale Light will flash on
and off for 75 seconds and then remain on solid, and
the EVIC will display aCHECK TPM SYSTEM
message for three seconds and then display dashes (- -)
in place of the pressure value. Once you repair or
replace the original road tire, and reinstall it on the
vehicle in place of the spare tire, the TPMS will update
automatically.
In addition, the Tire Pressure Monitoring Telltale Light
will turn OFF and the graphic in the EVIC will display a
new pressure value instead of dashes (- -), as long as no
tire pressure is below the low-pressure warning limit in
any of the four active road tires. The vehicle may need to
354 STARTING AND OPERATING

be driven for up to 20 minutes above 15 mph (24 km/h)
in order for the TPMS to receive this information.
General Information
This device complies with part 15 of the FCC rules and
RSS 210 of Industry Canada. Operation is subject to the
following conditions:
•This device may not cause harmful interference.
•This device must accept any interference received,
including interference that may cause undesired
operation.
The tire pressure sensors are covered under one of the
following licenses:
United States.....................KR5S120123
Canada........................2671-S120123
FUEL REQUIREMENTS
3.7 and 4.7L Engine
All engines (except 5.7L engines) are de-
signed to meet all emissions regulations
and provide excellent fuel economy and
performance when using high-quality un-
leaded “regular” gasoline having an oc-
tane rating of 87. The use of premium
gasoline is not recommended, as it will not provide any
benefit over regular gasoline in these engines.
5.7L Engine
The 5.7L engine is designed to meet all
emissions regulations and provide satisfac-
tory fuel economy and performance when
using high-quality unleaded gasoline hav-
ing an octane range of 87 to 89. The manu-
facturer recommends the use of 89 octane
STARTING AND OPERATING 355
5

Bulb Replacement...................... 450
Cargo .............................. 167
Center Mounted Stop................... 455
Cruise.............................. 191
Daytime Running...................... 133
Dimmer Switch, Headlight.............130,137
Electronic Stability Program (ESP) Indicator . . . 325
Electronic Throttle Control Warning......... 192
Exterior.............................. 71
Fog ..........................135,192,453
Four-Wheel Drive Indicator............... 191
Fuses............................... 441
Glow Plug Light....................... 193
Hazard Warning Flasher................. 390
Headlight Switch...................... 130
Headlights........................450,451
Headlights On With Wipers............... 131
High Beam Indicator.................... 185
Illuminated Entry....................... 21Instrument Cluster..................130,134
Interior..........................134,137
Lights On Reminder.................... 135
Low Fuel............................ 193
Malfunction Indicator (Check Engine)........ 185
Map Reading......................... 138
Oil Pressure.......................... 187
Passing............................. 137
Reading..........................138,153
Rear Servicing........................ 454
Rear Tail............................ 454
Seat Belt Reminder..................... 191
Security Alarm (Theft Alarm).............. 187
Service............................. 450
Service Engine Soon (Malfunction Indicator) . . . 185
Side Marker.......................... 454
SmartBeams.......................... 132
Tire Pressure Monitoring (TPMS)........... 187
Tow/Haul Indicator.................... 190
INDEX 507
10

Sunglasses Storage....................... 154
Supplemental Restraint System - Airbag........ 46
Sway Control, Trailer..................... 320
Synthetic Engine Oil...................... 417
System, Remote Starting.................... 27
Tachometer............................ 187
Telescoping Steering Column............... 142
Temperature Control, Automatic (ATC)........ 264
Temperature Gauge, Engine Coolant.......... 189
Tether Anchor, Child Restraint............... 63
Theft System Arming...................... 20
Theft System Disarming.................... 21
Tie Down Hooks, Cargo................... 170
Tilt Steering Column..................... 142
Time Delay, Headlight.................... 137
Tip Start.............................. 284
Tire and Loading Information Placard......... 331
Tire Identification Number (TIN)............. 330Tire Markings.......................... 326
Tire Safety Information.................... 326
Tires ............................71,335,494
Air Pressure.......................... 336
Chains.............................. 343
Changing............................ 391
Compact Spare........................ 338
General Information.................... 335
High Speed.......................... 337
Inflation Pressures..................... 336
Jacking............................. 391
Life of Tires.......................... 341
Load Capacity........................ 331
Pressure Monitor System (TPMS)........... 345
Pressure Warning Light.................. 187
Quality Grading....................... 494
Radial.............................. 338
Replacement......................... 342
Rotation............................ 344
514 INDEX