2010 CHRYSLER TOWN AND COUNTRY fuel

MAINTAINING YOUR VEHICLE
CONTENTS
Engine Compartment — 3.3/3.8L .......... 435
 Engine Compartment — 4.0L ............. 436
 Onboard Diagnostic System — OBD II ...... 437
▫ Loose Fuel Filler Cap Message ........... 437
 Emissions Inspection And Maintenance
Programs ............................ 438
 Replacement Parts ..................... 440
 Dealer Service ........................ 440
 Maintenance Procedures ................. 440 ▫
Engine Oil ......................... 441
▫ Engine Oil Filter ..................... 444
▫ Engine Air Cleaner Filter ............... 444
▫ Exhaust System ..................... 445
▫ Maintenance-Free Battery .............. 447
▫ Air Conditioner Maintenance ............ 448
▫ Body Lubrication .................... 451
▫ Windshield Wiper Blades ............... 451
▫ Cooling System ..................... 453
7

ONBOARD DIAGNOSTIC SYSTEM — OBD II
Your vehicle is equipped with a sophisticated onboard
diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the “Malfunction Indicator Light (MIL).” It
will also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your authorized dealer for service as
soon as possible.CAUTION!
•Prolonged driving with the MIL on could cause
further damage to the emission control system. It
could also affect fuel economy and driveability.
The vehicle must be serviced before any emissions
tests can be performed.
•If the MIL is flashing while the engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
Loose Fuel Filler Cap Message
If the vehicle diagnostic system determines that the fuel
filler cap is loose, improperly installed, or damaged, a
“gASCAP” message will display in the odometer or a
“CHECK GASCAP” message will be displayed in the
Electronic Vehicle Information Center (EVIC). Refer to
7
MAINTAINING YOUR VEHICLE 437

CAUTION!
•Failure to properly maintain your vehicle or per-
form repairs and service when necessary could
result in more costly repairs, damage to other
components or negatively impact vehicle perfor-
mance. Immediately have potential malfunctions
examined by an authorized Chrysler Group LLC
dealership or qualified repair center.
•Your vehicle has been built with improved fluids
that protect the performance and durability of
your vehicle and also allow extended maintenance
intervals. Do not use chemical flushes in these
components as the chemicals can damage your
engine, transmission, power steering or air condi-
tioning. Such damage is not covered by the New
Vehicle Limited Warranty. If a flush is needed
because of component malfunction, use only the
specified fluid for the flushing procedure.
Engine Oil
Checking Oil Level
To assure proper engine lubrication, the engine oil must
be maintained at the correct level. Check the oil level at
regular intervals, such as every fuel stop. The best time to
check the engine oil level is about five minutes after a
fully warmed engine is shut OFF or before starting the
engine after it has sat overnight.
Checking the oil while the vehicle is on level ground will
improve the accuracy of the oil level readings. Maintain
the oil level between the MIN and MAX markings on the
dipstick. Adding one quart of oil when the reading is at
the MIN mark will result in a MAX reading on these
engines.
7
MAINTAINING YOUR VEHICLE 441

Engine Oil Viscosity (SAE Grade) – 3.3L & 3.8L
Gasoline Engines
SAE 5W-20 engine oil is recommended for all operating
temperatures. This engine oil improves low temperature
starting and vehicle fuel economy. Your engine oil filler
cap also shows the recommended engine oil viscosity for
your vehicle.
For information on engine oil filler cap location, refer to
“Engine Compartment” in “Maintaining Your Vehicle”
for further information.
Lubricants that do not have both the engine oil certifica-
tion mark and the correct SAE viscosity grade number,
should not be used.
Engine Oil Viscosity (SAE Grade) – 4.0L Gasoline
Engines
SAE 10W-30 engine oil is preferred for all operating
temperatures. Your engine oil filler cap also shows the
recommended engine oil viscosity for your vehicle.For information on engine oil filler cap location, refer to
“Engine Compartment” in “Maintaining Your Vehicle”
for further information.
Lubricants that do not have both the engine oil certifica-
tion mark and the correct SAE viscosity grade number,
should not be used.
Synthetic Engine Oils
You may use synthetic engine oils provided the recom-
mended oil quality requirements are met, and the recom-
mended maintenance intervals for oil and filter changes
are followed.
Materials Added to Engine Oil
The manufacturer strongly recommends against the ad-
dition of any additives (other than leak detection dyes) to
the engine oil. Engine oil is an engineered product and its
performance may be impaired by supplemental
additives.7
MAINTAINING YOUR VEHICLE 443

CAUTION!
•The catalytic converter requires the use of un-
leaded fuel only. Leaded gasoline will destroy the
effectiveness of the catalyst as an emissions con-
trol device and may seriously reduce engine per-
formance and cause serious damage to the engine.
•Damage to the catalytic converter can result if your
vehicle is not kept in proper operating condition.
In the event of engine malfunction, particularly
involving engine misfire or other apparent loss of
performance, have your vehicle serviced promptly.
Continued operation of your vehicle with a severe
malfunction could cause the converter to overheat,
resulting in possible damage to the converter and
vehicle.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.
446 MAINTAINING YOUR VEHICLE

FUSES/TIPM
Cavity Cartridge
Fuse Mini-Fuse Description
J7 30 Amp Pink — Antilock Brakes
Valve/Stability
Control System
J8 40 Amp Green —
Power Memory
Seat – If
Equipped
J9 40 Amp Green —
Partial Zero
Emissions Ve-
hicle Motor/
Flex Fuel
J10 30 Amp Pink —
Headlamp
Wash Relay/
Manifold Tun-
ing ValveFUSES/TIPM
Cavity Cartridge
Fuse Mini-Fuse Description
J11 30 Amp Pink — Power Sliding
Door Module/
Anti–Theft
Module Relay
Lock Feed
J13 60 Amp Yel- low —
Ignition Off
Draw (IOD) –
Main
J14 40 Amp Green —
Rear Window
Defogger
J15 30 Amp Pink —
Rear Blower
J17 40 Amp Green —
Starter Solenoid
J18 20 Amp Blue —
Powertrain
Control Module
Trans Range
472 MAINTAINING YOUR VEHICLE

FUSES/TIPM
Cavity Cartridge
Fuse Mini-Fuse Description
M20 — 15 Amp BlueInstrument
Cluster Interior
Light, Switch
Bank, Steering
Column Mod-
ule, Switch
Steering Wheel
M21 — 20 Amp Yel-
lowAutomatic
Shutdown #3
M22 — 10 Amp Red Right Horn
(HI/LOW)
M23 — 10 Amp Red Left Horn (HI/
LOW)
M24 — 25 Amp
NaturalRear WiperFUSES/TIPM
Cavity Cartridge
Fuse Mini-Fuse Description
M25 — 20 Amp Yel- lowFuel Pump,
Diesel Lift
Pump – Export
Only
M26 — 10 Amp Red Power Mirror
Switch, Driver
Window Switch
M27 — 10 Amp Red Ignition Switch,
Wireless Con-
trol Module,
Keyless Entry
Module, Steer-
ing Column
Lock
476 MAINTAINING YOUR VEHICLE

FUSES/TIPM
Cavity Cartridge
Fuse Mini-Fuse Description
M34 — 10 Amp Red Park Assist, Heater Climate
Control System
Module, Head-
lamp Wash,
Compass, IR
Sensor, Rear
Camera, Lamp
Door FT Drv/
Pass, Lamp
Flashlight,
AHLM, Relay
Diesel Cabin
Heater, Rad
Fan Diesel
M35 — 10 Amp Red Heated Mirrors
M36 — 20 Amp Yel- lowPower Outlet
#3FUSES/TIPM
Cavity Cartridge
Fuse Mini-Fuse Description
M37 — 10 Amp Red Antilock Brakes, Stability
Control System,
Stop Lamp
Switch, Fuel
Pump Rly Hi
Control
M38 — 25 Amp NaturalDoor Lock/
Unlock Motors,
Liftgate Lock/
Unlock Motors
The heated mirrors, lower instrument panel power outlet
and removable floor console, when in the front position
are fused with self-resetting fuses that are only service-
able by an authorized dealer. The power seats are fused
by a 30 Amp circuit breaker located under the driver’s
seat. The power windows are fused by a 25 Amp circuit
478 MAINTAINING YOUR VEHICLE