fuel pressure JEEP GRAND CHEROKEE 2006 WK / 3.G SRT Owners Manual

prevailing road conditions. The “ESP/TCS Indicator
Light” will flash any time the ESP or TCS is active and
helping to improve vehicle stability. If the “ESP/TCS
Indicator Light” is on solid, the ESP system has been
turned off by the driver or a temporary condition exists
that will not allow full ESP function. (See page 130 for
more information.)
12. Tire Pressure Monitoring Telltale Light
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recommended
by the vehicle manufacturer on the vehicle
placard or tire inflation pressure label. (If your vehicle
has tires of a different size than the size indicated on the
vehicle placard or tire inflation pressure label, you should
determine the proper tire inflation pressure for those
tires.)As an added safety feature, your vehicle has been
equipped with a tire pressure monitoring system (TPMS)
that illuminates a low tire pressure telltale when one or
more of your tires is significantly under-inflated. Accord-
ingly, when the low tire pressure telltale illuminates, you
should stop and check your tires as soon as possible, and
inflate them to the proper pressure. Driving on a signifi-
cantly under-inflated tire causes the tire to overheat and
can lead to tire failure. Under-inflation also reduces fuel
efficiency and tire tread life, and may affect the vehicle’s
handling and stopping ability.
Please note that the TPMS is not a substitute for proper
tire maintenance, and it is the driver ’s responsibility to
maintain correct tire pressure, even if under-inflation has
not reached the level to trigger illumination of the TPMS
low tire pressure telltale.
UNDERSTANDING YOUR INSTRUMENT PANEL 179
4

Reset Button
Press the RESET button to reset the display you are in.
Press and hold the RESET button (for 2 seconds) to reset
all of the displays.
Average Fuel Economy
Shows the average fuel economy since the last reset.
Distance To Empty
Shows the estimated distance that can be travelled with
the fuel remaining in the tank. This is calibrated using the
miles per gallon during the last driving period.
Trip A
Shows the total distance travelled for trip A since the last
reset.
Trip B
Shows the total distance travelled for trip B since the last
reset.
Elapsed Time
Shows the accumulated ignition ON time since the last
reset.
Engine Oil Pressure
Shows the current engine oil pressure. The scale will read
from 0–100 psi (0–689 kPa).Reset Button
UNDERSTANDING YOUR INSTRUMENT PANEL 193
4

▫Tire Loading And Tire Pressure...........252

Tires — General Information...............256
▫Run Flat Tires........................256
▫Tire Pressure.........................257
▫Tire Inflation Pressures.................258
▫Tire Pressures For High Speed Operation....260
▫Radial-Ply Tires......................261
▫Tire Spinning........................261
▫Tread Wear Indicators..................262
▫Life Of Tire.........................262
▫Replacement Tires.....................263
▫Alignment And Balance.................264

Tire Pressure Monitor System (TPMS)........265▫Premium System......................265
▫General Information...................268

Tire Rotation Recommendations............268

Fuel Requirements......................268
▫Spark Knock.........................268
▫Reformulated Gasoline.................269
▫Gasoline/Oxygenate Blends..............269
▫MMT In Gasoline.....................270
▫Materials Added To Fuel................270
▫Fuel System Cautions..................270
▫Carbon Monoxide Warnings..............271

Fuel Tank Filler Cap (Gas Cap).............272
▫Loose Fuel Filler Cap Message............273
232 STARTING AND OPERATING

2. Economy—
Improper inflation pressures can cause uneven wear
patterns to develop across the tire tread. These abnormal
wear patterns will reduce tread life resulting in a need for
earlier tire replacement. Under inflation also increases
tire rolling resistance and results in higher fuel consump-
tion.
3. Ride Comfort and Vehicle Stability—
Proper tire inflation contributes to a comfortable ride.
Over inflation produces a jarring and uncomfortable ride.
Both under inflation and over inflation affect the stability
of the vehicle and can produce a feeling of sluggish
response or over responsiveness in the steering.
Unequal tire pressures can cause erratic and unpredict-
able steering response.
Unequal tire pressure from side to side may cause the
vehicle to drift left or right.Tire Inflation Pressures
The proper cold tire inflation pressure is listed on either
the face of the driver’s door, or the driver’s side “B” pillar.
The pressure should be checked and adjusted as well as
inspecting for signs of tire wear or visible damage at least
once a month. Use a good quality pocket-type gauge to
Tire Placard Location
258 STARTING AND OPERATING

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 op-
eration.
The tire pressure sensors are covered under one of the
following licenses:
United States.....................KR5S120123
Canada........................2671-S120123
TIRE ROTATION RECOMMENDATIONS
Do not rotate the tires as the wider rear tires will not fit
on the front of the vehicle.
FUEL REQUIREMENTS
Your vehicle is designed to meet all emis-
sion regulations and provide excellent fuel
economy when using high quality pre-
mium unleaded gasoline having an octane
rating of 91 or higher.
Spark Knock
Light spark knock at low engine speeds is not harmful to
your engine. However, continued heavy spark knock at
high speeds can cause damage and immediate service is
required.
Poor quality gasoline can cause problems such as hard
starting, stalling and hesitations. If you experience these
symptoms, try another brand of “premium” gasoline
before considering service for the vehicle.
268 STARTING AND OPERATING

WARNING!
•Remove the fuel cap (gas cap) slowly to prevent
fuel spray from the filler neck which may cause
injury.
•The volatility of some gasoline may cause a
buildup of pressure in the fuel tank that may
increase while you drive. This pressure can result
in a spray of gasoline and/or vapors when the cap
is removed from a hot vehicle. Removing the cap
slowly allows the pressure to vent and prevents
fuel spray.
•Never have any smoking materials lit in or near
the vehicle when the fuel cap is removed or the
tank filled.
•Never add fuel to the vehicle when the engine is
running.
WARNING!
A fire may result if gasoline is pumped into a
portable container that is inside of a vehicle. You
could be burned. Always place gas containers on the
ground while filling.
TRAILER TOWING
In this section you will find safety tips and information
on limits to the type of towing you can reasonably do
with your vehicle. Before towing a trailer carefully re-
view this information to tow your load as efficiently and
safely as possible.
To maintain warranty coverage, follow the requirements
and recommendations in this manual concerning ve-
hicles used for trailer towing.
274 STARTING AND OPERATING

WARNING!
•Overfilling the brake fluid reservoir can result in
spilling brake fluid on hot engine parts and the
brake fluid catching fire.
•Use of a brake fluid that has a lower initial boiling
point than the recommended MOPAR DOT 3
product or a brake fluid that is unidentified as to
FMVSS specification may result in sudden brake
failure during hard prolonged braking. You could
have an accident.
Use only brake fluid that has been in a tightly closed
container to avoid contamination from foreign matter or
moisture.
CAUTION!
Do not allow petroleum base fluid to contaminate
the brake fluid, all brake seal components could be
damaged causing partial or complete brake failure.
Fuel System Hoses
Electronic Fuel Injection high pressure fuel systems are
designed with hoses and quick connect fittings which
have unique material characteristics to provide adequate
sealing and resist attack by deteriorated gasoline.
You are urged to use only the manufacturer’s specified
hoses with quick connect fittings, or their equivalent in
material and specification, in any fuel system servicing. It
is mandatory to replace any damaged hoses or quick
connect fittings that have been removed during service.
322 MAINTAINING YOUR VEHICLE

ABS (Anti-Lock Brake System)............177,243
Adding Engine Coolant (Antifreeze).......... 316
Adding Washer Fluid..................... 169
Additives, Fuel......................... 270
Adjustable Pedals....................... 144
Air Conditioner Maintenance............... 309
Air Conditioning Refrigerant............... 310
Air Pressure, Tires....................... 258
Airbag................................ 42
Airbag Deployment....................... 55
Airbag Light.......................57,71,177
Airbag Maintenance....................... 56
Alarm (Security Alarm).................25,178
Alarm System (Security Alarm)............... 25
Alignment and Balance................... 264
Alterations/Modifications, Vehicle............. 8
Antenna, Satellite Radio................... 218
Antifreeze (Engine Coolant)..............315,341
Disposal............................ 317Anti-Lock Brake System (ABS)............131,243
Anti-Lock Warning Light.................. 177
Anti-Theft System.....................25,178
Appearance Care........................ 324
Auto Down Power Windows................ 30
Automatic Dimming Mirror................. 78
Automatic Door Locks..................... 19
Automatic Headlights.................... 121
Automatic Temperature Control (ATC)......... 222
Automatic Transmission.............236,323,324
Adding Fluid......................... 324
Fluid and Filter Changes................. 324
Fluid Change......................... 324
Fluid Level Check...................... 323
Autostick............................. 239
Auxiliary Electrical Outlet (Power Outlet)...... 160
Auxiliary Power Outlet................... 160
Battery............................... 307
374 INDEX

Emergency Starting..................... 289
Keyless Transmitter Replacement (RKE)....... 24
Saving Feature (Protection)............... 120
Bearings.............................. 324
Belts, Drive............................ 304
Belts, Seat.............................. 33
Body Mechanism Lubrication............... 311
B-Pillar Location........................ 252
Brake Assist System...................... 132
Brake Control System, Electronic............. 130
Brake System........................... 319
Anti-Lock (ABS)....................131,243
Fluid Check.......................... 321
Hoses.............................. 320
Parking............................. 241
Warning Light........................ 176
Brake/Transmission Interlock............... 237
Break-In Recommendations, New Vehicle........ 69
Bulb Replacement.....................334,335Capacities, Fluid........................ 341
Caps, Filler
Fuel................................ 272
Radiator (Coolant Pressure)............... 316
Car Washes............................ 325
Carbon Monoxide Warning............70,152,271
Cargo Area Cover....................... 164
Cargo Area Features...................... 163
Cargo Compartment...................... 163
Light............................... 163
Cargo Light............................ 163
Cargo Load Floor........................ 167
Cargo Tie-Downs........................ 165
Catalytic Converter...................... 306
Caution, Exhaust Gas..................... 152
CD (Compact Disc) Player................. 198
Cellular Phone.......................... 82
Center High Mounted Stop Light............ 340
Chart, Tire Sizing........................ 249
INDEX 375
10

Life of Tires............................ 262
Liftgate................................ 26
Liftgate Flipper Glass...................... 27
Liftgate Window Wiper/Washer............. 168
Lights..............................71,118
Airbag............................57,177
Alarm............................... 71
Anti-Lock........................... 177
Automatic Headlights................... 121
Back-Up............................. 339
Battery Saver......................... 120
Brake Assist Warning.................137,181
Brake Warning........................ 176
Bulb Replacement...................... 335
Cargo .............................. 163
Center Mounted Stop................... 340
Cruise.............................. 181
Daytime Running...................... 124
Dimmer Switch, Headlight.............120,125Electronic Stability Program (ESP)
Indicator........................137,178,181
Electronic Throttle Control Warning......... 182
Fog ..........................124,183,338
Fuses............................... 328
Hazard Warning Flasher................. 288
Headlight Switch...................... 121
Headlights........................... 335
Headlights On With Wipers............... 121
High Beam Indicator.................... 176
Illuminated Entry....................... 16
Instrument Cluster..................121,123
Interior........................... 118,123
Lights On Reminder.................... 124
Low Fuel............................ 183
LowTire ............................ 179
Malfunction Indicator (Check Engine)........ 176
Map Reading......................... 119
Oil Pressure.......................... 178
INDEX 381
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