Page 437 of 514

Under normal operating conditions, the catalytic con-
verter will not require maintenance. However, it is im-
portant to keep the engine properly tuned to assure
proper catalyst operation and prevent possible catalyst
damage.
NOTE:Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
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 tune-up 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 435
Page 438 of 514

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 anytime the igni-
tion switch is in the ON position.
•You or others can be badly burned by hot engine
coolant (antifreeze) or steam from your radiator. If
you see or hear steam coming from under the
hood, do not 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 the engine coolant (antifreeze) is dirty orrusty in appearance, the system should be drained,
flushed, and refilled with fresh engine coolant (anti-
freeze). 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.
Cooling System – Drain, Flush, And Refill
If the engine coolant (antifreeze) is dirty or contains a
considerable amount of sediment, clean and flush with a
reliable cooling system cleaner. Follow with a thorough
rinsing to remove all deposits and chemicals. Properly
dispose of the old engine coolant (antifreeze).
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
436 MAINTAINING YOUR VEHICLE
Page 456 of 514
CavityCartridge
Fuse Mini Fuse Description
3— 10 Amp
Red Center High
Mounted Stop
Light (CHMSL)/
Brake Switch
4— 10 Amp
Red Ignition Switch
5— 20 Amp
Yellow Trailer Tow – If
Equipped
6— 10 Amp
Red Power Mirror
Switch/Climate
Controls
7— 30 Amp
Green Ignition Off Draw
(IOD) Sense 1
8— 30 Amp
Green Ignition Off Draw
(IOD) Sense 2Cavity
Cartridge
Fuse Mini Fuse Description
9 40 Amp
Green Battery Feed –
Power Seats – If
Equipped
10 — 20 Amp
Yellow Instrument Panel/
Power Locks/
Interior Lights
11 — 15 Amp
Lt Blue Selectable Power
Outlet (Inside Cen-
ter Arm Rest)
12 — — —
13 — 20 Amp
Yellow Ignition/Cigar
Lighter
14 — 10 Amp
Red Instrument Panel
15 40 Amp
Green — Radiator Fan Relay
454 MAINTAINING YOUR VEHICLE
Page 457 of 514
CavityCartridge
Fuse Mini Fuse Description
16 — 15 Amp
Lt. Blue Sunroof – If
Equipped
17 — 10 Amp
Red Wireless Control
Module (WCM)/
Clock/Steering
Control Module
(SCM)
18 40 Amp
Green —Auto Shutdown
(ASD) Relay
19 — 20 Amp
Yellow Audio Amplifier –
If Equipped
20 — 15 Amp
Lt. Blue Radio
21 — 10 Amp
Red Siren – If EquippedCavity Cartridge
Fuse Mini Fuse Description
22 — 10 Amp
Red Ignition Run – Cli-
mate Controls/Hot
Cupholder – If
Equipped
23 — 15 Amp
Lt. Blue Auto Shutdown
(ASD) Relay 3
24 — 25 Amp
Natural Sunroof – If
Equipped
25 — 10 Amp
Red Ignition Run —
Heated Mirrors - If
Equipped
26 — 15 Amp
Lt. Blue Auto Shutdown
(ASD) Relay 2
7
MAINTAINING YOUR VEHICLE 455
Page 458 of 514
CavityCartridge
Fuse Mini Fuse Description
27 — 10 Amp
Red Ignition Run – Oc-
cupant Classifica-
tion Module
(OCM)/Occupant
Restraint Control-
ler (ORC)
28 — 10 Amp
Red Ignition Run —
Occupant Classifi-
cation Module
(OCM)/Occupant
Restraint Control-
ler (ORC)
29 — — Hot Car (No Fuse
Required)
30 — 20 Amp
Yellow Ignition Run –
Heated Seats – If
EquippedCavity
Cartridge
Fuse Mini Fuse Description
31 — — Spare
32 30 Amp
Pink —Auto Shutdown
(ASD) Relay 1
33 — 10 Amp
Red Switch Bank/
Diagnostic Link
Connector/
Powertrain Control
Module (PCM)
34 30 Amp
Pink —Anti-Lock Brakes
(ABS) Module – If
Equipped/
Electronic Stability
Control (ESC)
Module – If
Equipped
456 MAINTAINING YOUR VEHICLE
Page 460 of 514

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.
•Disengage the mini-fuse in the Power Distribution
Center labeled IOD (Ignition Off-Draw).
•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
All the inside bulbs are brass or glass wedge base.
Aluminum base bulbs are not approved and should not
be used for replacement.
LIGHT BULBS – Interior Bulb No.
Front Courtesy/Reading Lamp..........578/W5W
Center Courtesy/Reading Lamp ..........578/W5W
Visor Vanity Lamp ...................... A6220
Glove Box Lamp ....................... A6220
Shift Indicator Lamp ................. IKLE14140
Rear Compartment (Trunk) Lamp ............. 579
NOTE: For lighted switches, see your authorized dealer
for replacement.
458 MAINTAINING YOUR VEHICLE
Page 501 of 514

Odometer.......................... 200
Tachometer ......................... 200
Gear Ranges ........................ 304,312
Gear Select Lever Override ................. 411
General Information ................. 18,129,364
General Maintenance ..................... 422
Glass Cleaning .......................... 451
Gross Axle Weight Rating ...............376,379
Gross Vehicle Weight Rating .............376,378
GVWR ............................... 376
Hands-Free Phone (Uconnect™) .............. 99
Hazard Driving Through Flowing, Rising, or Shallow
Standing Water ...................... 322
Hazard Warning Flasher ................... 392
Head Restraints ......................... 143
Headlights ............................ 459
Bulb Replacement .................... 459 Cleaning
........................... 449
High Beam ...................... 152,209
High Beam/Low Beam Select Switch ...... 152
On With Wipers ..................... 159
Passing ............................ 153
Switch ............................ 150
Heated Seats ........................... 137
Heater ............................... 279
Heater, Engine Block ..................... 301
Hitches Trailer Towing ....................... 380
HomeLink® (Garage Door Opener) Transmitter . . 164
Hood Release .......................... 148
Ignition ............................... 13
Key ............................. 12,13
Ignition Key Removal ..................... 13
Illuminated Entry ........................ 21
Immobilizer (Sentry Key) ................... 16
10
INDEX 499