2008 JEEP PATRIOT key battery

RESET button to turn off the message. If the problem
persists, the message will appear the next time the
vehicle is started. This might indicate a damaged cap. If
the problem is detected twice in a row, the system will
turn on the MIL. Resolving the problem will turn the MIL
light off.
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass
an inspection of this vehicle’s emissions control system.
Failure to pass could prevent vehicle registration.
For states that require an Inspection and Mainte-
nance (I/M), this check verifies the Malfunction
Indicator Light (MIL) is functioning and is not on
when the engine is running, and that the OBD II system
is ready for testing.Normally, the OBD II system will be ready. The OBD II
system maynotbe ready if the vehicle was recently
serviced, recently had a dead battery, or a battery replace-
ment. If the OBD II system should be determined not
ready for the I/M test, the vehicle may fail the test.
This vehicle has a simple ignition key-actuated test,
which you can use prior to going to the test station. To
check if this vehicle’s OBD II system is ready, you must
do the following:
1. Insert the ignition key into the ignition switch.
2. Turn the ignition to the ON position, but do not crank
or start the engine.
3. If you crank or start the engine, you will have to start
this test over.
4. As soon as you turn the ignition key to the ON
position, you will see the MIL symbol come on as part of
a normal bulb check.
350 MAINTAINING YOUR VEHICLE

5. Approximately 15 seconds later, one of two things will
happen:
a. The MIL will flash for about 10 seconds and then
return to being fully illuminated until you turn OFF
the ignition key or start the engine. This means that the
vehicle’s OBD II system isnot readyand you should
notproceed to the I/M station.
b. The MIL will not flash at all and will remain fully
illuminated until you turn OFF the ignition key or start
the engine. This means that the vehicle’s OBD II
system isready,and you can proceed to the I/M
station.
If the OBD II system isnot ready,you should see an
authorized dealer or repair facility. If this vehicle was
recently serviced or had a battery failure or replacement,
you may need to do nothing more than drive the vehicleas you normally would in order for the OBD II system to
update. A recheck with the above test routine may then
indicate that the system is now ready.
Regardless of whether the vehicle’s OBD II system is
ready or not ready, if the MIL is illuminated during
normal vehicle operation, you should have the vehicle
serviced before going to the I/M station. The I/M station
can fail the vehicle because the MIL is on with the engine
running.
REPLACEMENT PARTS
The use of genuine Moparparts for normal/scheduled
maintenance and repairs is highly recommended to en-
sure the designed performance. Damage or failures
caused by the use of non-Moparparts for maintenance
and repairs will not be covered by the manufacturer’s
warranty.
MAINTAINING YOUR VEHICLE 351
7

BallJoints ............................. 362
Battery............................... 359
Keyless Transmitter Replacement (RKE)....... 24
Belts,Drive ............................ 356
Body Mechanism Lubrication............... 363
B-Pillar Location........................ 287
Brake Assist System...................... 135
Brake Fluid............................ 397
Brake, Parking.......................... 276
Brake System........................278,371
Anti-Lock (ABS).................133,134,279
Hoses.............................. 371
Master Cylinder....................... 372
Parking............................. 276
Warning Light........................ 175
Brakes.............................278,371
Brake/Transmission Interlock............... 246
Break-In Recommendations, New Vehicle........ 69
Bulb Replacement.....................385,386Bulbs,Light ............................ 385
Calibration, Compass..................... 192
Capacities, Antifreeze (Engine Coolant)........ 395
Capacities, Fluid........................ 395
Caps, Filler
Fuel................................ 314
Oil (Engine).......................348,354
Car Washes............................ 377
Carbon Monoxide Warning................. 314
Cargo Area Cover....................... 158
Cargo Area Features...................... 156
Cargo Compartment
Light ............................... 156
Luggage Carrier....................... 164
CargoLight ............................ 156
Cargo Load Floor........................ 159
Cargo Tie-Downs........................ 160
Catalytic Converter...................... 356
INDEX 419
10

Guide .............................. 321
Recreational.......................... 329
Weight .............................. 321
Towing Assistance........................ 95
Traction.............................. 276
TrailerTowing .......................... 317
Cooling System Tips.................... 328
Hitches............................. 320
Minimum Requirements................. 323
Trailer and Tongue Weight................ 322
Wiring .............................. 326
TrailerTowingGuide ..................... 321
TrailerWeight .......................... 321
Transaxle............................. 244
Automatic.................... 13,239,244,373
Autostick............................ 249
Manual........................ 12,239,242
Operation........................... 244
Overdrive........................... 248Selection of Lubricant................... 373
Transmission
Range Indicator....................... 177
Transmitter Battery Service
(Remote Keyless Entry).................... 24
Transmitter, Garage Door Opener
(HomeLink) ........................... 142
Transmitter Programming
(Remote Keyless Entry).................... 22
Transporting Pets........................ 68
Tread Wear Indicators.................... 297
Trip Odometer.......................... 179
Trip Odometer Reset Button................ 177
Turn Signals......................123,173,389
UConnect(Hands-Free Phone).............. 82
Understanding Your Instrument Panel......... 170
Uniform Tire Quality Grades................ 415
Universal Transmitter..................... 142
INDEX 433
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