2010 JEEP GRAND CHEROKEE ignition

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. Turn the ignition switch to the ON position, but do not
crank or start the engine.
2. If you crank or start the engine, you will have to start
this test over.
3. As soon as you turn the ignition switch to the ON
position, you will see the MIL symbol come on as part of
a normal bulb check.
4. 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 or start the engine. This means that your
vehicle’s OBD II system is not readyand you should
not proceed to the I/M station. b. The MIL will not flash at all and will remain fully
illuminated until you turn OFF the ignition or start the
engine. This means that your vehicle’s OBD II system
is
ready and you can proceed to the I/M station.
If your OBD II system is not ready,you should see your
authorized dealer or repair facility. If your vehicle was
recently serviced or had a battery failure or replacement,
you may need to do nothing more than drive your
vehicle as you normally would in order for your OBD II
system to update. A recheck with the above test routine
may then indicate that the system is now ready.
Regardless of whether your vehicle’s OBD II system is
ready or not, if the MIL is illuminated during normal
vehicle operation you should have your vehicle serviced
before going to the I/M station. The I/M station can fail
your vehicle because the MIL is on with the engine
running.
7
MAINTAINING YOUR VEHICLE 367

NOTE:Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
WARNING!
A hot exhaust system can start a fire if you park over
materials that can burn. Such materials might be
grass or leaves coming into contact with your exhaust
system. Do not park or operate your vehicle in areas
where your exhaust system can contact anything that
can burn.
In unusual situations involving grossly malfunctioning
engine operation, a scorching odor may suggest severe
and abnormal catalyst overheating. If this occurs, stop
the vehicle, turn off the engine and allow it to cool.
Service, including a tuneup to manufacturer’s specifica-
tions, should be obtained immediately. To minimize the possibility of catalytic converter dam-
age:
•Do not shut off the engine or interrupt the ignition,
when the transmission is in gear and the vehicle is in
motion.
•Do not try to start the engine by pushing or towing the
vehicle.
•Do not idle the engine with any spark plug wires
disconnected or removed, such as when diagnostic
testing, or for prolonged periods during very rough
idle or malfunctioning operating conditions.
7
MAINTAINING YOUR VEHICLE 379

CavityCartridge
Fuse Mini-
Fuse Description
27 20 Amp YellowHD Washer – If
Equipped (Export
Only)
28 30 Amp
GreenABS Valves
29 20 Amp
YellowPCM Batt (Gasoline
Only)
30 — Spare
31 — Spare
32 15 Amp
BluePowertrain Control
Module (Diesel Only)
33 20 Amp
YellowFinal Drive Control
Module (FDCM) E-Diff
34 — Spare
35 20 Amp
YellowTrail-Tow Mod (Export
Only)Cavity
Cartridge
Fuse Mini-
Fuse Description
36 — Spare
37 20 Amp YellowIgnition Switch
38 20 Amp
YellowHID Left
39 20 Amp
YellowHID Right
40 25 Amp
NaturalNext Generation Con-
troller (NGC), Injectors
41 20 Amp
YellowSubwoofer (SRT Only)
42 — Spare
43 25 Amp
NaturalCoils, Actuators
44 — Spare
7
MAINTAINING YOUR VEHICLE 403

CavityCartridge
Fuse Mini-
Fuse Description
18 20 Amp
YellowFront Control Module
(FCM) Batt #1
19 20 Amp
YellowLt Trailer-Tow Stop/
Turn
20 20 Amp
YellowFront Control Module
(FCM) Batt #3
21 20 Amp
YellowRt Trailer-Tow Stop/
Turn
22 30 Amp Pink Final Drive Control
Module (FDCM)
MOD
23 50 Amp Red Radiator FanCavity
Cartridge
Fuse Mini-
Fuse Description
27 15 Amp
BlueIgnition Off Draw
(IOD) #1 — Intrusion
Module, Satellite
Video, Steering Con-
trol Module
28 20 Amp
YellowIgnition Off Draw
(IOD) #2 — Radio
29 10 Amp
RedOccupant Restraint
Controller (ORC) R/S
30 10 Amp
RedOccupant Restraint
Controller (ORC)
R/O
7
MAINTAINING YOUR VEHICLE 405

VEHICLE STORAGE
If you are leaving your vehicle dormant for more than
21 days you may want to take steps to protect your
battery. You may:
•Remove fuse #27 in the Intelligent Power Module
labeled Ignition-Off Draw (IOD#1).
•Or, disconnect the negative cable from the battery.
•Anytime you store your vehicle, or keep it out of
service (i.e. vacation) for two weeks or more, run the
air conditioning system at idle for about five minutes
in the fresh air and high blower setting. This will
ensure adequate system lubrication to minimize the
possibility of compressor damage when the system is
started again.
REPLACEMENT BULBS
Interior LightsBulb Type
Glove Box Lamp ......................... 194
Grab Handle Lamp ................ L002825W5W
Overhead Console Reading Lamps .........VT4976
Rear Cargo Lamp ....................... 214–2
Visor Vanity Lamp ..................... V26377
Underpanel Courtesy Lamps ................ 906
Instrument Cluster (General Illumination) ....... 103
Telltale/Hazard Lamp ...................... 74
406 MAINTAINING YOUR VEHICLE

54,000 Miles (90,000 km) or
54 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏ Rotate tires.
❏ Inspect the front and rear axle fluid,
change if using your vehicle for police,
taxi, fleet, off-road or frequent trailer
towing.
Odometer Reading Date
Repair Order #Dealer Code
Signature Authorized Chrysler Dealer
60,000 Miles (100,000 km) or 60 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil filter.
❏ Rotate tires.
❏ Replace the engine air cleaner filter.
❏ Inspect the brake linings; replace if necessary.
❏ Replace the ignition cables (3.7L Engine).
❏ Replace the spark plugs (3.7L and 5.7L Engines).
❏ Adjust parking brake on vehicles equipped with four-wheel disc brakes.
❏ Change the automatic transmission fluid and filter(s) if using your vehicle for any of the
following: police, taxi, fleet, or frequent trailer towing.
❏ Change the transfer case fluid if using your vehicle for any of the following: police, taxi,
fleet, or frequent trailer towing.
❏ Flush and replace the engine coolant if not done at 102,000 miles (170 000 km).
❏ Inspect the front suspension, tie rod ends and boot seals for cracks or leaks and all parts for
damage, wear, improper looseness or end play; replace if necessary.
Odometer Reading Date
Repair Order #Dealer Code
Signature Authorized Chrysler Dealer
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SMAINTENANCE SCHEDULES 425

120,000 Miles (200,000 km) or 120 Months Maintenance Service
Schedule
❏Change the engine oil and engine oil filter.
❏ Rotate tires.
❏ Replace the engine air cleaner filter.
❏ Replace the ignition cables (3.7L Engine).
❏ Replace the spark plugs (3.7L and 5.7L Engines).
❏ Adjust parking brake on vehicles equipped with four-wheel disc brakes.
❏ Inspect the brake linings; replace if necessary.
❏ Inspect the CV joints.
❏ Inspect exhaust system.
❏ Inspect the front suspension, tie rod ends and boot seals for cracks or leaks and all parts for
damage, wear, improper looseness or end play; replace if necessary.
❏ Change the automatic transmission fluid and filter(s).
❏ Change the transfer case fluid.
❏ Replace the accessory drive belt(s).
Odometer Reading Date
Repair Order #Dealer Code
Signature Authorized Chrysler Dealer
126,000 Miles (210,000 km) or
126 Months Maintenance
Service Schedule
❏Change the engine oil and engine oil
filter.
❏ Rotate tires.
❏ Inspect the front and rear axle fluid,
change if using your vehicle for police,
taxi, fleet, off-road or frequent trailer
towing.
Odometer Reading Date
Repair Order #Dealer Code
Signature Authorized Chrysler Dealer
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SMAINTENANCE SCHEDULES 431

Head Rests............................. 88
Headlights .......................... 102,407
Bulb Replacement ...................... 408
Cleaning ............................ 397
On With Wipers ....................... 103
Replacing ........................... 408
Heated Mirrors .......................... 83
Heated Seats .......................... 89,91
Heater, Engine Block ..................... 242
High Beam Indicator ..................... 159
High Beam/Low Beam Select (Dimmer) Switch . . 108
Hill Descent Control ..................... 281
Hill Start Assist ......................... 278
Hitches Trailer Towing ........................ 328
Holder, Cup ........................... 142
HomeLink (Garage Door Opener) Transmitter . . . 128
Hood Release .......................... 100 Ignition
............................... 15
Key ............................... 14,15
Ignition Key Removal ..................... 15
Illuminated Entry ........................ 20
Immobilizer (Sentry Key) ................... 17
Infant Restraint .......................... 61
Inflation Pressure Tires .................... 296
Information Center, Vehicle ................. 168
Inside Rearview Mirror .................... 80
Instrument Cluster .................... 157,158
Instrument Panel and Controls .............. 156
Instrument Panel Lens Cleaning ............. 397
Integrated Power Module (Fuses) ............ 404
Interior Appearance Care .................. 396
Interior Fuses .......................... 398
Interior Lighting ........................ 108
Interior Lights .......................... 108
Intermittent Wipers (Delay Wipers) ........... 110
Introduction ............................. 4
10
INDEX 453