Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of engine
coolant (antifreeze), and to ensure that the engine coolant
(antifreeze) will return to the radiator from the coolant
expansion bottle.
The cap should be inspected and cleaned if there is any
accumulation of foreign material on the sealing surfaces.
WARNING!
•Do not open hot engine cooling system. Never add
engine coolant (antifreeze) when the engine is over-
heated. Do not loosen or remove the cap to cool an
overheated engine. Heat causes pressure to build up
in the cooling system. To prevent scalding or injury,
do not remove the pressure cap while the system is
hot or under pressure.
• Do not use a pressure cap other than the one speci-
fied for your vehicle. Personal injury or engine
damage may result.
Disposal Of Used Engine Coolant
Used ethylene glycol-based engine coolant (antifreeze) is a
regulated substance requiring proper disposal. Check with
your local authorities to determine the disposal rules for
your community. To prevent ingestion by animals or
children, do not store ethylene glycol-based engine coolant
(antifreeze) in open containers or allow it to remain in
puddles on the ground. If ingested by a child or pet, seek
emergency assistance immediately. Clean up any ground
spills immediately.
Checking Coolant Level — 6.4L Engine
The level of the coolant in the pressurized coolant bottle
should be between the “MIN” and “MAX” range on the
bottle when the engine is cold.
The radiator normally remains completely full, so there is
no need to remove the cap unless checking for coolant
freeze point or replacing engine coolant (antifreeze). Ad-
vise your service attendant of this. As long as the engine
operating temperature is satisfactory, the coolant bottle
need only be checked once a month. When additional
engine coolant (antifreeze) is needed to maintain the
proper level, it should be added to the coolant bottle. Do
not overfill.
474 MAINTAINING YOUR VEHICLE
Points To Remember
NOTE:When the vehicle is stopped after a few miles/
kilometers of operation, you may observe vapor coming
from the front of the engine compartment. This is normally
a result of moisture from rain, snow, or high humidity
accumulating on the radiator and being vaporized when
the thermostat opens, allowing hot engine coolant (anti-
freeze) to enter the radiator.
If an examination of your engine compartment shows no
evidence of radiator or hose leaks, the vehicle may be
safely driven. The vapor will soon dissipate.
• Do not overfill the coolant expansion bottle.
• Check the coolant freeze point in the radiator and in the
coolant expansion bottle. If engine coolant (antifreeze)
needs to be added, the contents of the coolant expansion
bottle must also be protected against freezing.
• If frequent engine coolant (antifreeze) additions are
required, the cooling system should be pressure tested
for leaks.
• Maintain engine coolant (antifreeze) concentration at a
minimum of 50% OAT coolant (conforming to MS.90032) and distilled water for proper corrosion pro-
tection of your engine which contains aluminum com-
ponents.
• Make sure that the coolant expansion bottle overflow
hoses are not kinked or obstructed.
• Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean.
• Do not change the thermostat for Summer or Winter
operation. If replacement is ever necessary, install ONLY
the correct type thermostat. Other designs may result in
unsatisfactory engine coolant (antifreeze) performance,
poor gas mileage, and increased emissions.
Brake System
In order to assure brake system performance, all brake
system components should be inspected periodically. Refer
to the “Maintenance Schedule” for the proper maintenance
intervals.
7
MAINTAINING YOUR VEHICLE 475
LIGHT BULBS — Exterior
Bulb Number
Quad Headlamp – Low Beam H11
Quad Headlamp – High Beam 9005
Quad Headlamp – Front Turn Signal Lamp 3157NA
Premium Headlamp – Low Beam HIR2
Premium Headlamp – High Beam 9005
Premium Headlamp –
Front Turn Signal Lamp LED (See authorized
dealer for service)
Horizontal Fog Lamp 9145
Vertical Fog Lamp 9006
Cab Roof Marker Lamps 194NA
Center High Mounted Stop Lamp 921
Rear Cargo Lamp 921
Box Off Tail Lamps –
Stop/Turn/Tail/License 1157
Bulb Number
Plate
Box Off Tail Lamps – Back Up 1156
BULB REPLACEMENT
NOTE:
Lens fogging can occur under certain atmospheric
conditions. This will usually clear as atmospheric condi-
tions change to allow the condensation to change back into
a vapor. Turning the lamps on will usually accelerate the
clearing process.
Base Quad / Premium Bi-Halogen: Low Beam
Headlamp, High Beam Headlamp, Front Park And
Turn — If Equipped
1. Open the hood.
2. Disconnect and isolate the negative battery cable.
3. Remove the six plastic push-in fasteners that secure the upper radiator seal to the grille support and both fender
ledges.
4. Remove the two plastic push-in rivets that secure the upper radiator seal to the radiator.
494 MAINTAINING YOUR VEHICLE
5. Remove the upper radiator seal from the vehicle.
6. Remove the two headlamp assembly attachment screws.
7. Reach into the front wheel house ahead of the frontwheel, remove the fastener, and lift the cover over the
access hole in the front of the wheel house splash shield.
Access to the rear of the lamp can be gained through this
access hole. 8. Reach through the access hole of the wheel house splash
shield and lift the slide lock upward far enough to
disengage it from the lock post on the back of the front
lamp unit housing.
9. Remove the headlamp assembly. Grasp the outboard edge of the lamp and pull it straight forward to disen-
gage the ball stud from the plastic grommet.
10. Disconnect the wiring harness connectors from the bulb socket.
11. Replace bulb(s) as necessary.
Headlamp Assembly Attachment Screw LocationsSlide Lock
7
MAINTAINING YOUR VEHICLE 495
CAUTION!
•Mixing of engine coolant (antifreeze) other than
specified Organic Additive Technology (OAT) en-
gine coolant (antifreeze), may result in engine dam-
age and may decrease corrosion protection. Organic
Additive Technology (OAT) engine coolant is differ-
ent and should not be mixed with Hybrid Organic
Additive Technology (HOAT) engine coolant (anti-
freeze) or any “globally compatible” coolant (anti-
freeze). If a non-OAT engine coolant (antifreeze) is
introduced into the cooling system in an emergency,
the cooling system will need to be drained, flushed,
(Continued)
CAUTION! (Continued)
and refilled with fresh OAT coolant (conforming to
MS.90032), by an authorized dealer as soon as pos-
sible.
• Do not use water alone or alcohol-based engine
coolant (antifreeze) products. Do not use additional
rust inhibitors or antirust products, as they may not
be compatible with the radiator engine coolant and
may plug the radiator.
• This vehicle has not been designed for use with
propylene glycol-based engine coolant (antifreeze).
Use of propylene glycol-based engine coolant (anti-
freeze) is not recommended.
7
MAINTAINING YOUR VEHICLE 501
Fluid Type......................... .478, 502
Shifting .............................. .327
Special Additives ........................ .479
Axle Fluid ........................ .477, 478, 502
Axle Lubrication ....................... .477, 478
Back-Up Camera .......................... .161
Battery .............................. .204, 457
Charging System Light ....................204
Keyless Key Fob Replacement ................24
Belts, Seat .................................96
Body Builders Guide ..........................6
Body Mechanism Lubrication ..................465
B-Pillar Location .......................... .371
Brake Assist System ........................ .355
Brake Control System, Electronic ................353
Brake Fluid .......................... .476, 502
Brake System ......................... .352, 475
Fluid Check ........................... .476
Master Cylinder ........................ .476
Parking .............................. .350
Warning Light .......................... .202
Brake/Transmission Interlock ..................327
Bulb Replacement ......................... .494Bulbs, Light
........................... .98, 493
Cab Top Clearance Lights .....................498
Camera, Rear ............................ .161
Capacities, Antifreeze (Engine Coolant) ...........499
Capacities, Fluid .......................... .499
Caps, Filler Oil (Engine) ........................... .453
Power Steering ......................... .350
Radiator (Coolant Pressure) .................474
Carbon Monoxide Warning .................95, 399
Cargo Light ............................. .137
Car Washes .............................. .481
Center High Mounted Stop Light ...............496
Center
Seat Storage Compartment ...............182
Certification Label ......................... .401
Chart, Tire Sizing .......................... .367
Check Engine Light (Malfunction Indicator Light). . . .449
Checking Your Vehicle For Safety ................95
Checks, Safety .............................95
Child Restraint .............................70
Child Restraints Booster Seats ............................74
Child Restraints ..........................70
Child Seat Installation .................83, 84, 85
10
INDEX 517
How To Stow An Unused ALR Seat Belt.........81
Infants And Child Restraints .................72
Locating The LATCH Anchorages ..............79
Lower Anchors And Tethers For Children ........76
Older Children And Child Restraints ...........73
Seating Positions ..........................75
Cigar Lighter ............................ .177
Clean Air Gasoline ........................ .396
Cleaning Wheels ............................... .483
Climate Control ........................... .277
Cold Weather Operation ..................... .323
Compact Disc (CD) Maintenance ................275
Compact Spare Tire ........................ .381
Console, Overhead ........................ .164
Contract, Service .......................... .512
Coolant Pressure Cap (Radiator Cap) .............474
Cooling System ........................... .471
Adding Coolant (Antifreeze) .................473
Coolant Capacity ........................ .499
Coolant Level ....................... .471, 474
Disposal Of Used Coolant ..................474
Drain, Flush, And Refill ....................472
Inspection ............................. .474
Points To Remember ..................... .475Pressure Cap
........................... .474
Radiator Cap .......................... .474
Selection Of Coolant (Antifreeze) ..........472, 500
Corrosion Protection ....................... .481
Cruise Light ....................... .220, 221, 222
Cupholders .............................. .178
Customer Assistance ....................... .510
Customer Programmable Features ...............256
Daytime Running Lights .....................131
Dealer Service ............................ .451
Defroster, Rear Window ..................... .186
Defroster, Windshield ........................96
Delay
(Intermittent) Wipers ...................139
Differential, Limited-Slip .....................346
Dipsticks Automatic Transmission ....................479
Power Steering ......................... .350
Disabled Vehicle Towing .....................442
Disposal Antifreeze (Engine Coolant) .................474
Do Not Disturb ........................... .314
Door Ajar ............................... .207
Door Ajar Light ........................... .207
518 INDEX
Take-Off Adapter........................ .336
Take-Off Operation ...................... .336
Windows ...............................37
Power Seats Down .............................115,116
Forward ............................115,116
Rearward ...........................115,116
Recline ................................115
Tilt...................................116
Up................................115,116
Power Steering Fluid ....................... .502
Pregnant Women And Seat Belts .................51
Pretensioners Seat Belts ...............................52
Programmable Electronic Features ...............230
Programming Key Fobs (Remote Keyless Entry) ......21
PTO (Power Take-Off) ...................... .336
Radial Ply Tires ........................... .378
Radiator Cap (Coolant Pressure Cap) .........472, 474
Radio Frequency General Information .............17, 19, 27, 30, 37
Radio Operation .......................... .275
Radio (Sound Systems) ..................... .273
Rain Sensitive Wiper System ...................140 Rear Axle (Differential)
...................477, 478
Rear ParkSense System ...................148, 155
Rear Window Features ...................... .186
Rear Window, Sliding ...................... .187
Reclining Rear Seats ........................ .120
Recreational Towing ........................ .418
Shifting Into Transfer Case Neutral (N) .........420
Shifting Out Of Transfer Case Neutral (N) .......422
Reformulated Gasoline ...................... .396
Refrigerant .............................. .459
Reminder, Seat Belt ..........................42
Remote Control Starting System ...........................27
Remote Keyless Entry ..................... .21, 22
Programming Additional Key Fobs .............18
Remote Sound System (Radio) Controls ...........274
Remote Starting Uconnect Customer Programmable Features . .249, 266
Uconnect Settings .....................249, 266
Remote Starting System .......................27
Replacement
Keys ...........................18
Replacement Parts ......................... .450
Replacement Tires ......................... .384
Reporting Safety Defects .....................513
Restraint, Head ........................... .121
10
INDEX 525