2007 JEEP GRAND CHEROKEE lock

²Do not ªrideº the brakes by resting your foot on the
pedal. This could overheat the brakes and result in
unpredictable braking action, longer stopping dis-
tances, or brake damage.
²When descending mountains or hills, repeated brak-
ing can cause brake fade with loss of braking control.
Avoid repeated heavy braking by downshifting the
transmission or locking out overdrive whenever pos-
sible.
²Engines may idle at higher speeds during warm-up,
which could cause rear wheels to spin and result in
loss of vehicle control. Be especially careful while
driving on slippery roads, in close-quarter maneuver-
ing, parking or stopping.
²Do not drive too fast for road conditions, especially
when roads are wet or slushy. A wedge of water canbuild up between the tire tread and the road. This
hydroplaning action can cause loss of traction, braking
ability, and control.
²After going through deep water or a car wash, brakes
may become wet, resulting in decreased performance
and unpredictable braking action. Dry the brakes by
gentle, intermittent pedal action while driving at very
slow speeds.
POWER STEERING
The standard power steering system will give you good
vehicle response and increased ease of maneuverability
in tight spaces. The system will provide mechanical
steering capability if power assist is lost.
If for some reason the power assist is interrupted, it will
still be possible to steer your vehicle. Under these condi-
tions, you will observe a substantial increase in steering
effort, especially at very low vehicle speeds and during
parking maneuvers.
248 STARTING AND OPERATING

²Safety chains must always be used between your
vehicle and trailer. Always connect the chains to the
hook retainers of the vehicle hitch. Cross the chains
under the trailer tongue and allow enough slack for
turning corners.
²Vehicles with trailers should not be parked on a grade.
When parking, apply the parking brake on the tow
vehicle. Put the tow vehicle in P (Park). Always, block
or9chock9the trailer wheels.
²GCWR must not be exceeded.
²Total weight must be distributed between the tow
vehicle and the trailer such that the following four
ratings are not exceeded:
1. GVWR
2. GTW
3. GAWR4. Tongue weight rating for the trailer hitch utilized
(This requirement may limit the ability to always
achieve the 10% to 15% range of tongue weight as a
percentage of total trailer weight).
Towing Requirements Ð Tires
þ
Proper tire inflation pressures are essential to the safe
and satisfactory operation of your vehicle. Refer to
ªTires±General Informationº for proper tire inflation
procedures.
þAlso, check the trailer tires for proper tire inflation
pressures before trailer usage.
þCheck for signs of tire wear or visible tire damage
before towing a trailer. Refer to ªTires±General Infor-
mationº for proper inspection procedure.
STARTING AND OPERATING 285
5

Body Lubrication
Locks and all body pivot points, including such items as
seat tracks, doors, trunk 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 MopartLock Cylinder Lubri-
cant or equivalent 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. This will remove accu-
mulations 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 remove frost or ice from
the windshield. Keep the blade rubber out of contact with
petroleum products such as engine oil, gasoline, etc.
Windshield Washers Ð Front and Rear
On vehicles equipped with a Electronic Vehicle Informa-
tion Center (EVIC), 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
316 MAINTAINING YOUR VEHICLE

Cav-
ityCartridge
FuseMini Fuse Description
1 30 Amp
GreenAudio Amp (B+)
2 15 Amp
BlueSunroof (B+)
3 10 Amp
RedHtd Mirror (EBL)
4 20 Amp
YellowRr Pwr Out (B+)
5 Spare
6 Spare
7 20 Amp
YellowDoor Locks (B+)
8 15 Amp
BlueSteer Col Lock (B+)
(ELV)
9 20 Amp
YellowPwr Outlet (B+)Cav-
ityCartridge
FuseMini Fuse Description
10 10 Amp
RedFinal Drive Control
Module (FDCM),
Heater Ventilation, Air
Conditioning (HVAC),
Switch Bank, Transfer
Case Switch, O/H,
Heater Ventilation, Air
Conditioning (HVAC)
Relay, Rear Park As-
sist
11 Spare (B+)
12 10 Amp
RedDoor Mods, Mem. Sw,
O/H Lamps, IP Cour-
tesy Lamps, Glove
Box Lamp (B+)
13 10 Amp
RedAutowipe (R/A)
334 MAINTAINING YOUR VEHICLE

Underhood Fuses (Power Distribution Center)
Cav-
ityCartridge
FuseMini Fuse Description
1 40 Amp
GreenHVAC Blower
Cav-
ityCartridge
FuseMini Fuse Description
2 30 Amp
PinkPower Outlets
3 30 Amp
PinkRr Wiper/Ign R/O
4 30 Amp
PinkABS Pump
5 Spare
6 50 Amp
RedAuto Shut Down
(ASD)
7 Spare
8 40 Amp
GreenAcc Delay/Seats
9 Spare
10 40 Amp
GreenStarter/Junction Block
(JB) Power
Power Distribution Center
336 MAINTAINING YOUR VEHICLE

Cav-
ityCartridge
FuseMini Fuse Description
11 30 Amp
PinkCig Ltr/T-Tow
12 40 Amp
GreenRear Window Defog-
ger (EBL)/Htd Mirror
13 40 Amp
GreenJunction Block (JB)
Power
14 Spare
15 Spare
16 25 Amp
NaturalIntegrated Power
Module (IPM)/Coils
17 Spare
18 20 Amp
YellowEATX/AC Clutch
19 20 Amp
YellowIgn SwCav-
ityCartridge
FuseMini Fuse Description
20 20 Amp
YellowPCM Batt (Gasoline
Only)
21 30 Amp
GreenABS Valves
22 20 Amp
YellowT-Tow (BUX)
23 20 Amp
YellowFinal Drive Control
Module (FDCM)
24 20 Amp
YellowFuel Pump
25 20 Amp
YellowFinal Drive Control
Module (FDCM)
26 Spare
27 15 Amp
BlueBrake/Stop Lamps
28 Spare
MAINTAINING YOUR VEHICLE 337
7

BULB REPLACEMENT
Head Light
1. Open the hood.
2. Remove the headlamp cover.3. Turn the low or high beam bulb 1/4 turn counter
clockwise to remove from housing.
4. Disconnect the electrical connector and replace the
bulb.
MAINTAINING YOUR VEHICLE 341
7

3. Turn the turn signal bulb 1/4 turn counter clockwise
to remove from housing.
4. Disconnect the electrical connector and replace the
bulb.CAUTION!
Do not touch the new bulb with your fingers. Oil
contamination will severely shorten bulb life. If the
bulb comes in contact with any oily surface, clean
the bulb with rubbing alcohol.
Front Fog Light
1. Reach behind the front fascia from under the vehicle.
2. Turn the front fog light bulb 1/4 turn counter clock-
wise to remove from housing.
3. Disconnect the electrical connector and replace bulb.
MAINTAINING YOUR VEHICLE 343
7