Page 442 of 523

Cooling System
WARNING!
•When working near the radiator cooling fan, dis-
connect the fan motor lead or turn the ignition
switch to the LOCK position. The fan is tempera-
ture controlled and can start at any time the
ignition switch is in the ON position.
•You or others can be badly burned by hot coolant
or steam from your radiator. If you see or hear
steam coming from under the hood, don’t open the
hood until the radiator has had time to cool. Never
try to open a cooling system pressure cap when the
radiator is hot.
Coolant Checks
Check engine coolant (antifreeze) protection every 12
months (before the onset of freezing weather, where
applicable). If coolant is dirty or rusty in appearance, the
system should be drained, flushed, and refilled with
fresh coolant. Check the front of the A/C condenser for
any accumulation of bugs, leaves, etc. If dirty, clean by
gently spraying water from a garden hose vertically
down the face of the condenser.
Check the coolant recovery bottle tubing for brittle rub-
ber, cracking, tears, cuts, and tightness of the connection
at the bottle and radiator. Inspect the entire system for
leaks.
440 MAINTAINING YOUR VEHICLE
Page 460 of 523
CAUTION!
•When installing the power module cover, it is
important to ensure the cover is properly posi-
tioned and fully latched. Failure to do so may
allow water to get into the TIPM, and possibly
result in an electrical system failure.
•When replacing a blown fuse, it is important to
use only a fuse having the correct amperage rating.
The use of a fuse with a rating other than indicated
may result in a dangerous electrical system over-
load. If a properly rated fuse continues to blow, it
indicates a problem in the circuit that must be
corrected.
CavityCartridge
Fuse Mini-
Fuse Description
J1 40 Amp Green —Power Folding Seat
J2 30 Amp Pink —Transfer Case Module
- if equipped
J3 30 Amp Pink —Rear Door Module
J4 25 Amp White —Driver Door Node
J5 25 Amp White —Passenger Door Node
J6 40 Amp Green —Anti-Lock Brake Sys-
tem (ABS) Pump/
Electronic Stability
Program (ESP)
458 MAINTAINING YOUR VEHICLE
Page 461 of 523
CavityCartridge
Fuse Mini-
Fuse Description
J7 30 Amp Pink —Anti-Lock Brake Sys-
tem (ABS) Valve/
Electronic Stability
Program (ESP)
J8 40 Amp Green —Power Memory Seat -
if equipped
J9 40 Amp Green —Flex Fuel/PZEV Mo-
tor - if equipped
J10 30 Amp Pink —(If Equipped) Head-
lamp Washer Relay-
(BUX), Manual Tun-
ing Valve
J11 30 Amp Pink —(If Equipped) Sway
Bar/Thatchum Secu-
rity (BUX)/Power
Sliding DoorCavity
Cartridge
Fuse Mini-
Fuse Description
J13 60 Amp Yellow —Ignition Off Draw
(IOD) Main
J14 40 Amp Green —Electric Back Light
(EBL)
J15 30 Amp Pink —Rear Blower - if
equipped
J17 40 Amp Green —Starter Solenoid
J18 20 Amp Yellow — NGC (Powertrain
Control Module)/
Transmission Range
J19 60 Amp Yellow —Radiator Fan Motor
J20 30 Amp Pink —Front Windshield
Wiper Hi/Low
J21 20 Amp Blue —Front/Rear Washer
MAINTAINING YOUR VEHICLE 459
7
Page 465 of 523
CavityCartridge
Fuse Mini-
Fuse Description
M25 —20 Amp
Yellow Fuel Pump/Diesel
Lift Pump
M26 —10 Amp
Red Power MIRRORS
Switch/Drivers Win-
dow Switch
M27 —10 Amp
Red Steering Column
Lock, Wireless Igni-
tion Node (WIN)
M28
—10 Amp
Red
NGC (Powertrain
Control Module)/
Transmission Feed
(Batt)
M29 —10 Amp
Red Occupant Classifica-
tion Module (OCM)
M30 —15 Amp
Blue Rear Wiper Module
Module/Power Fold-
ing MirrorCavity
Cartridge
Fuse Mini-
Fuse Description
M31 —20 Amp
Yellow Back-Up Lights
M32 —10 Amp
Red Occupant Restraint
Controller (ORC)
M33 —10 Amp
Red NGC (Powertrain
Control Module) Bat-
tery Feed
M34
—10 Amp
Red
Power Assist Module,
HVAC Module, Head-
lamp Washers, Com-
pass Module - if
equipped, Flashlight -
if equipped
M35 —10 Amp
Red Heated Mirrors - if
equipped
M36 —20 Amp
Yellow Power Outlet #3
(Batt)
MAINTAINING YOUR VEHICLE 463
7
Page 466 of 523
CavityCartridge
Fuse Mini-
Fuse Description
M37
—10 Amp
Red
Anti-Lock Brake Sys-
tem (ABS), Electronic
Stability Program
(ESP), STOP LIGHT
Switch
M38 —25 Amp
Natural Lock/Unlock Motors
K1
—— Ignition Run/
Accessory Relay
K2 — — Ignition Run Relay
K3 — — Starter Solenoid Relay
K4 —— Ignition Run/Start
Relay
K5 —— (NGC) Powertrain
Control Module Relay
K6 —— Electric Back Light
(EBL) Relay
K7 — — —
K8 — — —
K9 — — Rear Blower Relay
K10 —— ASD Relay (Feed for
M19 and M21)
K11 —— Radiator Fan Relay
Low Speed
VEHICLE STORAGE
If you will not be using your vehicle for more than 21
days you may want to take steps to preserve your battery.
You may:
•Remove the IOD (Ignition Off-Draw) mini-fuses from
the Totally Integrated Power Module located in the
engine compartment.
•Or, disconnect the batter negative cable.
464 MAINTAINING YOUR VEHICLE
Page 468 of 523
BULB REPLACEMENT
Low Beam Headlight, High Beam Headlight, Front
Turn Signal/Park Light, Side Marker Light
1. Open the hood.
NOTE:It may be necessary to remove the air cleaner
filter housing and position the Totally Integrated Power
Module (TIPM) aside to replace certain the lights in the
left headlight housing.
2. Rotate the applicable bulb and connector assembly
1 4
turn counterclockwise and remove the assembly from the
headlight housing.
3. Disconnect the bulb from the harness connector and
then connect the replacement bulb.
1 — Front Turn Signal/Park Light Bulb
2 — Side Marker Light Bulb
3 — Low Beam Headlight Bulb
4 — High Beam Headlight Bulb
466 MAINTAINING YOUR VEHICLE
Page 469 of 523
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.
4. Install the bulb and connector assembly into the
headlight housing and rotate it
1 4turn clockwise to lock
it in place.
Front Fog Light
NOTE: Turn the steering wheel to the right if replacing
the left front fog light or to the left if replacing the right
front fog light to allow for easier access to the front of the
wheel well.
1. Remove the fasteners retaining the front lower wheel
well access panel and remove the access panel. 2. Rotate the bulb’s electrical connector
1 4turn counter-
clockwise and remove it from the fog light housing.
3. Remove the bulb from the connector socket and install
the replacement bulb.
MAINTAINING YOUR VEHICLE 467
7
Page 470 of 523

CAUTION!
Do not touch the new bulb with your fingers. Oil
contamination will severely shorten bulb life. If the
bulb comes in contact with an oily surface, clean the
bulb with rubbing alcohol.
4. Install the bulb and connector assembly into the fog
light housing and rotate the connector
1 4turn clockwise
to lock it in place.
5. Reinstall the front lower wheel well access panel and
fasteners.
Tail/Stop Light, Rear Turn Signal Light, Tail Light,
Backup Light
The taillights are a two-piece design. The tail/stop lights
and rear turn signal lights are located in the rear corner
body panels. The tail and backup lights are located in the
liftgate.
Changing the Tail/Stop Light or Rear Turn Signal
Light
1. Open the liftgate.
2. Remove the two fasteners from the inboard side of the
taillight housing.
3. Carefully insert a trim stick (plastic flat-blade tool)
between the body panel and the outboard side of the
taillight housing with one hand and grasp the flange on
the inboard side of the taillight housing with the other
hand. Use the trim stick and hand pressure together to
disengage the taillight housing from the vehicle.
468 MAINTAINING YOUR VEHICLE