JEEP COMMANDER 2010 1.G Owners Manual

JUMP-STARTING
If the vehicle has a discharged battery, booster cables may
be used to obtain a start from a booster battery or the
battery in another vehicle. This type of start can be
dangerous if done improperly, so follow this procedure
carefully.
WARNING!
•Remove any metal jewelry such as watch bands or
bracelets that might make an inadvertent electrical
contact. You could be seriously injured.
•Battery fluid is a corrosive acid solution that can
cause serious burns; do not allow battery fluid to
contact eyes, skin or clothing. Wear safety glasses
and protect your eyes at all times. If acid splashes
in eyes or on skin, flush contaminated area imme-
diately with large quantities of water.(Continued)
WARNING! (Continued)
•A battery generates hydrogen gas which is flam-
mable and explosive. Keep flame or spark away
from the vent holes. Do not lean over the battery
when attaching clamps or allow the clamps to
touch each other.
•Do not use a booster battery or any other booster
source that has a greater than 12 Volt system, i.e.,
do not use a 24 Volt power source.
1. Remove all metal jewelry such as watch bands or
bracelets, which might make an unintended electrical
contact.
2. Park the booster vehicle within cable reach but with-
out letting the vehicles touch. Set the parking brake on
both vehicles, place the transmission in PARK and turn
the ignition OFF.
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WHAT TO DO IN EMERGENCIES 351

3. Turn off the heater, radio and all unnecessary electrical
loads.
4. Connect one end of a jumper cable to the positive
terminal of the booster battery. Connect the other end of
the same cable to the positive terminal of the discharged
battery.
WARNING!
•Do not permit vehicles to touch each other as this
could establish a ground connection and personal
injury could result.
•Do not connect the cable to the negative post of the
discharged battery. The resulting electrical spark
could cause the battery to explode and could result
in personal injury.(Continued)
WARNING! (Continued)
•During cold weather when temperatures are be-
low the freezing point, electrolyte in a discharged
battery may freeze. Do not attempt jump-starting
because the battery could rupture or explode and
cause personal injury. Battery temperature must be
brought above freezing point before attempting a
jump-start.
5. Connect the other cable, first to the negative terminal
of the booster battery and then to the engine of the
vehicle with the discharged battery. Make sure you have
a good contact on the engine.
6. Start the engine in the vehicle that has the booster
battery, let the engine idle a few minutes, then start the
engine in the vehicle with the discharged battery.
7. When removing the jumper cables, reverse the above
sequence exactly. Be careful of the moving belts and fan.
352 WHAT TO DO IN EMERGENCIES

WARNING!
Any procedure other than above could result in:
•Personal injury caused by electrolyte squirting out
the battery vent.
•Personal injury or property damage due to battery
explosion.
CAUTION!
Any procedure other than above could result in
damage to the charging system of the booster vehicle
or of the immobilized vehicle.
EMERGENCY TOW HOOKS — IF EQUIPPED
If your vehicle is equipped with tow hooks, there will be
one in the rear and two mounted on the front of the
vehicle. The rear hook will be located on the driver’s side
of the vehicle.NOTE:
For off-road recovery, it is recommended to use
both of the front tow hooks to minimize the risk of
damage to the vehicle.
CAUTION!
Tow hooks are for emergency use only, to rescue a
vehicle stranded off road. Do not use tow hooks for
tow truck hookup or highway towing. You could
damage your vehicle.
WARNING!
Stand clear of vehicles when pulling with tow hooks.
Tow straps and chains may break, causing serious
injury.
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WHAT TO DO IN EMERGENCIES 353

TOWING A DISABLED VEHICLE
2–Wheel Drive Models Only
Provided the transmission is operable, tow only in NEU-
TRAL at speeds not exceeding 30 mph (48 km/h), for
distances of not more than 15 miles (24 km).
CAUTION!
Towing at more than 30 mph (48 km/h) or for more
than 15 miles (24 km), can cause severe transmission
damage.
If the transmission is not operable, or the vehicle must be
towed faster than 30 mph (48 km/h) or farther than
15 miles (24 km), remove the driveshaft or tow with all
four wheels OFFthe ground. Acceptable methods are to
tow the vehicle on a flatbed, or with one end of the
vehicle raised and the other end on a towing dolly.
4–Wheel Drive Models Only
The manufacturer requires towing your vehicle with all
four wheels OFFthe ground using a flatbed.
CAUTION!
Towing this vehicle using any other method could
result in extensive damage to the transfer case and/or
transmission.
354 WHAT TO DO IN EMERGENCIES

MAINTAINING YOUR VEHICLE
CONTENTS
Engine Compartment – 3.7L .............. 357
 Engine Compartment – 5.7L .............. 358
 Onboard Diagnostic System – OBD II ....... 359
▫ Loose Fuel Filler Cap Message ........... 359
 Emissions Inspection And Maintenance
Programs ............................ 360
 Replacement Parts ..................... 362
 Dealer Service ........................ 362
 Maintenance Procedures ................. 362 ▫
Engine Oil ......................... 363
▫ Engine Oil Filter ..................... 366
▫ Engine Air Cleaner Filter ............... 366
▫ Maintenance-Free Battery .............. 367
▫ Air Conditioner Maintenance ............ 368
▫ Body Lubrication .................... 369
▫ Windshield Wiper Blades ............... 369
▫ Adding Washer Fluid ................. 370
▫ Exhaust System ..................... 371
7

▫Cooling System ..................... 374
▫ Brake System ....................... 379
▫ Front/Rear Axle Fluid ................. 381
▫ Transfer Case ....................... 382
▫ Automatic Transmission ............... 383
▫ Maintenance After Off-Road Driving ...... 386
▫ Appearance Care And Protection From
Corrosion .......................... 387
 Fuses .............................. 392
▫ Interior Fuses ....................... 392
▫ Underhood Fuses (Power Distribution
Center) ........................... 395
▫ Underhood Fuses (Integrated Power
Module) ........................... 398 
Vehicle Storage ....................... 400
 Replacement Bulbs .................... 400
 Bulb Replacement ..................... 401
▫ Head Lamp ........................ 401
▫ Front Turn Signal .................... 402
▫ Front Fog Lamp ..................... 403
▫ Rear Tail, Stop, Turn Signal, And Backup
Lamps ............................ 404
▫ Center High Mounted Stop Lamp
(CHMSL) .......................... 406
 Fluids And Capacities .................. 407
 Fluids, Lubricants, And Genuine Parts ....... 408
▫ Engine ............................ 408
▫ Chassis ........................... 409
356 MAINTAINING YOUR VEHICLE

ENGINE COMPARTMENT – 3.7L
1 — Engine Coolant Reservoir6 — Washer Fluid Reservoir
2 — Engine Oil Dipstick 7 — Battery
3 — Brake Fluid Reservoir 8 — Engine Oil Fill
4 — Power Distribution Center 9 — Coolant Pressure Cap
5 — Integrated Power Module 10 — Air Cleaner Filter
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MAINTAINING YOUR VEHICLE 357

ENGINE COMPARTMENT – 5.7L
1 — Engine Coolant Reservoir7 — Washer Fluid Reservoir
2 — Automatic Transmission Dipstick 8 — Battery
3 — Engine Oil Fill 9 — Engine Oil Dipstick
4 — Brake Fluid Reservoir 10 — Coolant Pressure Cap
5 — Power Distribution Center 11 — Air Cleaner Filter
6 — Integrated Power Module
358 MAINTAINING YOUR VEHICLE

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” (MIL). 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 authorized dealer for service as
soon as possible.CAUTION!
•Prolonged driving with the MIL on could cause
further damage to the emission control system. It
could also affect fuel economy and drivability. The
vehicle must be serviced before any emissions
tests can be performed.
•If the MIL is flashing while the engine is running,
severe catalytic converter 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 “CHECK GASCAP” message
will be displayed in the EVIC (Refer to Section 4 of this
manual). Tighten the gas cap until aclickingsound is
heard. This is an indication that the gas cap is properly
tightened.
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MAINTAINING YOUR VEHICLE 359

The message will remain displayed until the vehicle
diagnostic system can retest the fuel system. The test will
perform the next time the vehicle is started, if the vehicle
was keyed off above 40°F (4°C) outside temperature and
the following vehicle start is above 40°F (4°C) outside
temperature. It may be possible to have a message that
will not clear due to the test being disabled due to low
outside temperatures. If the test is performed and the
problem is gone, the message will disappear.
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 off. See your authorized dealer for service.
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 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 may notbe ready if your 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, 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 II system is ready, you must
do the following:
1. Insert your ignition key into the ignition switch.
360 MAINTAINING YOUR VEHICLE