2008 JEEP COMMANDER air conditioning

þAir Conditioning
Turn off temporarily.
þrefer to Cooling System Operating information in the
Maintenance section of this manual for more informa-
tion.
RECREATIONAL TOWING (BEHIND
MOTORHOME, ETC.)
Towing ± 2WD Models
Recreational towing is allowed ONLY if the driveshaft
is removed.Towing with the rear wheels on the ground
while the driveshaft is connected can result in severe
transmission damage.
Towing Ð Quadra-Trac I (Single-Speed Transfer
Case) 4WD Models
Recreational towing is not allowed.This model does not
have a N (Neutral) position in the transfer case.
Towing Ð Quadra±Trac II /Quadra±Drive II 4WD
Models
CAUTION!
Front or rear wheel lifts should not be used. Internal
damage to the transmission or transfer case will occur
if a front or rear wheel lift is used when recreational
towing.
NOTE:The transfer case must be in the N (Neutral)
position, and the transmission must be in the P (Park)
position for recreational towing.
STARTING AND OPERATING 359
5

IF YOUR ENGINE OVERHEATS
In any of the following situations, you can reduce the
potential for overheating by taking the appropriate ac-
tion.
²On the highways Ð Slow down.
²In city traffic Ð While stopped, put transmission in N
(Neutral), but do not increase engine idle speed.
NOTE:There are steps that you can take to slow down
an impending overheat condition. If your air conditioner
is on, turn it off. The air conditioning system adds heat to
the engine cooling system and turning off the A/C
removes this heat. You can also turn the Temperature
Control to maximum heat, the Mode Control to floor, and
the Fan Control to High. This allows the heater core to act
as a supplement to the radiator and aids in removing heat
from the engine cooling system.
CAUTION!
Driving with a hot cooling system could damage
your vehicle. If the temperature gauge reads ªHº,
pull over and stop the vehicle. Idle the vehicle with
the air conditioner turned off until the pointer drops
back into the normal range. If the pointer remains on
the ªHº, and you hear continuous chimes, turn the
engine off immediately, and call for service.
WHAT TO DO IN EMERGENCIES 367
6

Air Conditioner Maintenance
For best possible performance, your air conditioner
should be checked and serviced by an Authorized Dealer
at the start of each warm season. This service should
include cleaning of the condenser fins and a performance
test. Drive belt condition should also be checked at this
time.WARNING!
²Use only refrigerants and compressor lubricants
approved by the manufacturer for your air condi-
tioning system. Some unapproved refrigerants are
flammable and can explode, injuring you. Other
unapproved refrigerants or lubricants can cause
the system to fail, requiring costly repairs. Refer to
Section 3 of the Warranty Information Book for
additional warranty information.
²The air conditioning system contains refrigerant
under high pressure. To avoid risk of personal
injury or damage to the system, adding refrigerant
or any repair requiring lines to be disconnected
should be done by an experienced repairman.
MAINTAINING YOUR VEHICLE 397
7

NOTE:Use only manufacturer approved A/C System
Sealers, Stop Leak Products, Seal Conditioners, Compres-
sor Oil, and Refrigerants.
Refrigerant Recovery and Recycling
R-134a Air Conditioning Refrigerant is a hydrofluorocar-
bon (HFC) that is endorsed by the Environmental Pro-
tection Agency and is an ozone-saving product. How-
ever, the manufacturer recommends that air conditioning
service be performed by dealers or other service facilities
using recovery and recycling equipment.
Power Steering Fluid Check
The power steering system requires the use of Mopart
Hydraulic System Power Steering Fluid (P/N
05142893AA), or equivalent, which meets
DaimlerChrysler Material Standard MS-10838.
CAUTION!
Do not use Automatic Transmission Fluid (ATF) or
other types of power steering fluids when servicing
the power steering system of this vehicle. Damage to
the power steering system can result from the use of
the wrong power steering fluid.
Checking the power steering fluid level at a defined
service interval is not required. The fluid should only be
checked if a leak is suspected, abnormal noises are
apparent, and/or the system is not functioning as antici-
pated. Coordinate inspection efforts through a certified
ªDaimlerChrysler Dealership.º
398 MAINTAINING YOUR VEHICLE

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.
²Do not overfill the coolant recovery bottle.
²Check antifreeze/coolant freeze point in the radiator
and in the coolant recovery bottle. If antifreeze/
coolant needs to be added, contents of coolant recov-
ery bottle must also be protected against freezing.
²If frequent antifreeze/coolant additions are required,
or if the level in the coolant recovery bottle does not
drop when the engine cools, the cooling system should
be pressure tested for leaks.
²Maintain antifreeze/coolant concentration at 50%
HOAT antifreeze/coolant (minimum) and distilled
water for proper corrosion protection of your engine
which contains aluminum components.
²Make sure that the radiator and coolant recovery
bottle hoses are not kinked or obstructed.
²Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean, also.
²Do 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 cooling performance, poor gas
mileage, and increased emissions.
Hoses and Vacuum/Vapor Harnesses
Inspect surfaces of hoses and nylon tubing for evidence
of heat and mechanical damage. Hard or soft spots,
brittle rubber, cracking, tears, cuts, abrasions, and exces-
sive swelling indicate deterioration of the rubber.
406 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 10 Amp
RedRr HVAC (R/O)
(Commander Only)
6 Spare (B+)
7 20 Amp
YellowDoor Locks (B+)
8 15 Amp
BlueSteer Col Lock (B+)
(ELV)Cav-
ityCartridge
FuseMini Fuse Description
9 20 Amp
YellowPwr Outlet (B+)
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+)
420 MAINTAINING YOUR VEHICLE

²Anytime 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
insure adequate system lubrication to minimize the
possibility of compressor damage when the system is
started again.
REPLACEMENT BULBS
Interior Lights Bulb Type
Glove Box Light......................... 194
Grab Handle Light................L002825W5W
Overhead Console Reading Lights..........VT4976
Rear Cargo Light.......................214±2
Visor Vanity Light.....................V26377
Underpanel Courtesy Lights................. 906
Instrument Cluster (General Illumination)....... 103
Telltale/Hazard Light...................... 74
* Available only from authorized dealers.Exterior Lights Bulb Type
Backup Lights.........................3057K
Front Fog Lights........................9145
Front Park/Turn Light...................3157A
Front Side Marker...................... W5W
Headlights (Low Beam)...................9006
Headlights (High Beam)...................9005
Rear Turn/Stop/Tail Lights...............3057K
NOTE:Numbers refer to commercial bulb types that
can be purchased from your authorized dealer.
If a bulb needs to be replaced, visit your authorized
dealer or refer to the applicable Service Manual.
MAINTAINING YOUR VEHICLE 427
7

ABS (Anti-Lock Brake System)............188,302
Adding Fuel........................... 341
Adding Washer Fluid..................... 177
Adjustable Pedals....................... 135
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 393
Air Conditioner Maintenance............... 397
Air Conditioning........................ 259
Air Conditioning, Operating Tips............ 269
Air Conditioning, Rear Zone................ 267
Air Conditioning Refrigerant............... 398
Air Conditioning System.................. 259
Air Filter.............................. 393
Air Pressure, Tires....................... 316
Airbag................................ 48
Airbag Deployment....................... 55
Airbag Light.......................57,71,188
Airbag Maintenance....................... 57
Alarm, Panic............................ 24
Alarm (Security Alarm).................20,189Alarm System (Security Alarm)............... 20
Alignment and Balance................... 321
Alterations/Modifications, Vehicle............. 9
Antenna, Satellite Radio................... 250
Antifreeze (Engine Coolant)................ 435
Disposal............................ 405
Anti-Lock Brake System (ABS)............139,302
Anti-Lock Warning Light.................. 188
Anti-Theft System.....................20,189
Appearance Care........................ 415
Assist, Hill Start........................ 148
Audio Systems (Radio).................... 239
Auto Down Power Windows................ 32
Automatic Dimming Mirror................. 78
Automatic Door Locks..................... 29
Automatic Headlights.................... 126
Automatic Temperature Control (ATC)......... 260
Automatic Transmission................283,411
Adding Fluid......................... 412
458 INDEX