2006 JEEP COMMANDER light

ONBOARD DIAGNOSTIC SYSTEM — OBD II
Your vehicle is equipped with a sophisticated onboard
diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the “Malfunction Indicator Light.” It will
also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your dealer for service as soon as
possible.CAUTION!
•Prolonged driving with the “Malfunction Indica-
tor Light” on could cause further damage to the
emission control system. It could also affect fuel
economy and driveability. The vehicle must be
serviced before any emissions tests can be per-
formed.
•If the “Malfunction Indicator Light” is flashing
while the engine is running, severe catalytic con-
verter damage and power loss will soon occur.
Immediate service is required.
Loose Fuel Filler Cap Message
After fuel is added, the vehicle diagnostic system can
determine if the fuel filler cap is loose, improperly
installed, or damaged. A loose fuel filler cap message will
be displayed in the instrument cluster. Tighten the gas
348 MAINTAINING YOUR VEHICLE

cap until aclickingsound is heard. This is an indication
that the gas cap is properly tightened. Press the odometer
reset button to turn the message off. 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 Malfunction Indicator Light (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 your vehicle’s emissions control system.
Failure to pass could prevent vehicle registration.
For states which have an I/M (Inspection and
Maintenance) requirement, this check verifies the
following: the MIL (Malfunction Indicator Lamp)is functioning and is not on when the engine is running,
and that the OBD (On Board Diagnostic) system is ready
for testing.
Normally, the OBD system will be ready. The OBD
system maynotbe ready if your vehicle was recently
serviced, if you recently had a dead battery, or a battery
replacement. If the OBD system should be determined
not ready for the I/M test, your vehicle may fail the test.
Your vehicle has a simple ignition key actuated test
which you can use prior to going to the test station. To
check if your vehicle’s OBD system is ready, you must do
the following:
1. Insert your 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.
MAINTAINING YOUR VEHICLE 349
7

Body Lubrication
Locks and all body pivot points, including such items as
seat tracks, doors, tailgate and hood hinges, should be
lubricated periodically to assure quiet, easy operation
and to protect against rust and wear. Prior to the appli-
cation of any lubricant, the parts concerned should be
wiped clean to remove dust and grit; after lubricating
excess oil and grease should be removed. Particular
attention should also be given to hood latching compo-
nents to insure proper function. When performing other
underhood services, the hood latch, release mechanism
and safety catch should be cleaned and lubricated.
The external lock cylinders should be lubricated twice a
year, preferably in the fall and spring. Apply a small
amount of a high quality lubricant such as MoparLock
Cylinder Lubricant directly into the lock cylinder.
Windshield Wiper Blades
The rubber edges of the wiper blades and the windshield
should be cleaned periodically with a sponge or soft cloth
and a mild nonabrasive cleaner to remove accumulations
of salt or road film.
Operation of the wipers on dry glass for long periods
may cause deterioration of the wiper blades. Always use
washer fluid when using the wipers to remove salt or dirt
from a dry windshield.
Avoid using the wiper blades to wipe frost or ice from the
windshield. Keep the blade rubber out of contact with
petroleum products such as engine oil, gasoline, etc.
Windshield Washers — Front and Rear
On vehicles equipped with a Vehicle Information Center,
the low washer fluid level will be indicated. When the
sensor detects a low fluid level, the windshield will light
on the vehicle graphic outline and the “Washer Fluid
Low” message will be displayed.
MAINTAINING YOUR VEHICLE 363
7

5. Remove the dipstick, wipe it clean and reinsert it until
seated.
6. Remove the dipstick again and note the fluid level on
both sides. The fluid level should be between the “HOT”
(upper) reference holes on the dipstick at normal operat-
ing temperature. The fluid level is only valid if there is a
solid coating of oil is seen on both sides of the dipstick. If
the fluid is low, add as required into the dipstick tube.Do
not overfill.After adding any quantity of oil through the
oil fill tube, wait a minimum of two (2) minutes for the oil
to fully drain into the transmission before rechecking the
fluid level.
NOTE:If it is necessary to check the transmissionbelow
the operating temperature, the fluid level should be
between the two “COLD” (lower) holes on the dipstick
with the fluid at approximately 70°F (21°C) (room tem-
perature). If the fluid level is correctly established at
room temperature, it should be between the “HOT”(upper) reference holes when the transmission reaches
180°F (82°C). Remember it is best to check the level at the
normal operating temperature.
CAUTION!
Be aware that if the fluid temperature is below 50°F
(10°C) it may not register on the dipstick. Do not add
fluid until the temperature is elevated enough to
produce an accurate reading.
7. Check for leaks. Release parking brake.
To prevent dirt and water from entering the transmission
after checking or replenishing fluid, make certain that the
dipstick cap is properly reseated. It is normal for the
dipstick cap to spring back slightly from its fully seated
position, as long as its seal remains engaged in the
dipstick tube.
374 MAINTAINING YOUR VEHICLE

REPLACEMENT BULBS
Interior Lights Bulb Type
Glove Box Light......................... 194
Grab Handle Light................L002825W5W
Overhead Console Reading Lights..........VT4976
Rear Cargo Light.......................214–2
Visor Vanity Light.....................V26377
Underpanel Courtesy Lights................. 906
Instrument Cluster (General Illumination)....... 103
Telltale/Hazard Light...................... 74
* Available only from authorized dealers.Exterior Lights Bulb Type
Backup Lights.........................3057K
Front Fog Lights........................9145
Front Park/Turn Light...................3157K
Front Side Marker.......................2825
Headlights (Low Beam)...................9006
Headlights (High Beam)...................9005
Rear License Plate Light.................... 168
Rear Stop/Tail Lights....................3057K
Rear Turn/Tail Lights (2)..................3057
NOTE:Numbers refer to commercial bulb types that
can be purchased from your authorized dealer.
If a bulb needs to be replaced, visit your authorized
dealer or refer to the applicable Service Manual.
MAINTAINING YOUR VEHICLE 387
7

•Check the windshield washer solvent, add as required.
Once a Month
•Check the tire pressure and look for unusual wear or
damage.
•Inspect the battery and clean and tighten the terminals
as required.
•Check the fluid levels of the coolant reservoir, brake
master cylinder, and transmission, and add as needed.
•Check all lights and all other electrical items for correct
operation.At Each Oil Change
•Change the engine oil filter.
•Inspect the exhaust system.
•Inspect brake hoses.
•Check the engine coolant/anti-freeze level, hoses, and
clamps.
•After completion of off-road operation, the underside
of the vehicle should be thoroughly inspected. Exam-
ine threaded fasteners for looseness.
394 MAINTENANCE SCHEDULES
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S

Customer Assistance For The Hearing Or Speech
Impaired (TDD/TTY)
To assist customers who have hearing difficulties, the
manufacturer has installed special TDD (Telecommuni-
cation Devices for the Deaf) equipment at its Customer
Center. Any hearing or speech impaired customer who
has access to a TDD or a conventional teletypewriter
(TTY) in the United States can communicate with the
manufacturer by dialing 1–800–380–CHRY.
Service Contract
You may have purchased a service contract for your
vehicle to help protect you from the high cost of unex-
pected repairs after your manufacturer’s new vehicle
limited warranty expires. The manufacturer stands be-
hind only the manufacturer’s Service Contracts. If you
purchased a manufacturer’s Service Contract, you will
receive Plan Provisions and an Owner Identification Card
in the mail within three weeks of your vehicle delivery
date. If you have any questions about your servicecontract, call the manufacturer’s Service Contract Na-
tional Customer Hotline at 1-800-521-9922.
The manufacturer will not stand behind any service
contract that is not the manufacturer’s Service Contract. It
is not responsible for any service contract other than the
manufacturer’s Service Contract. If you purchased a
service contract that is not a manufacturer’s Service
Contract, and you require service after your manufactur-
er’s new vehicle limited warranty expires, please refer to
your contract documents, and contact the person listed in
those documents.
We appreciate that you have made a major investment
when you purchased your new vehicle. Your dealer has
also made a major investment in facilities, tools, and
training to assure that you are absolutely delighted with
your ownership experience. You’ll be pleased with their
sincere efforts to resolve any warranty issues or related
concerns.
414 IF YOU NEED CONSUMER ASSISTANCE

ABS (Anti-Lock Brake System)............179,271
Adding Washer Fluid..................... 169
Adjustable Pedals....................... 147
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 358
Air Conditioner Maintenance............... 360
Air Conditioning........................ 232
Air Conditioning, Operating Tips............ 236
Air Conditioning, Rear Zone................ 243
Air Conditioning Refrigerant............... 361
Air Conditioning System.................. 232
AirFilter .............................. 358
Air Pressure, Tires....................... 290
Airbag................................ 42
Airbag Deployment....................... 54
Airbag Light....................... 56,70,179
Airbag Maintenance....................... 56
Alarm (Security Alarm)................. 25,180
Alarm System (Security Alarm)............... 25
Alignment and Balance................... 296Alterations/Modifications, Vehicle............. 9
Antenna, Satellite Radio................... 229
Antifreeze (Engine Coolant)................ 388
Anti-Lock Brake System (ABS)............132,271
Anti-Lock Warning Light.................. 179
Anti-Theft System..................... 25,180
Appearance Care........................ 377
Auto Down Power Windows................ 30
AutomaticDimmingMirror ................. 79
Automatic Door Locks..................... 20
Automatic Headlights.................... 123
Automatic Temperature Control (ATC)......... 237
Automatic Transmission................256,372
Adding Fluid......................... 374
Fluid and Filter Changes................. 372
Fluid Level Check...................... 373
FluidType ........................... 372
Special Additives...................... 375
Torque Converter...................... 262
420 INDEX