2007 DODGE GRAND CARAVAN towing

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.” 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 dealer for service as soon as
possible. CAUTION!• Prolonged driving with the “Malfunction Indica-
tor Light” 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 per-
formed.
• If the “Malfunction Indicator Light” is flashing
while the engine is running, severe catalytic con-
verter damage and power loss will soon occur.
Immediate service is required.
Loose Fuel Filler Cap Message
After fuel is added, the vehicle diagnostic system can
determine if the fuel filler cap is loose, improperly
installed, or damaged. A loose fuel filler cap message will
be displayed in the instrument cluster. Tighten the gas416 MAINTAINING YOUR VEHICLE

Change Engine Oil
Road conditions and your kind of driving affects the
interval at which your oil should be changed. Check the
following list to see if any apply to you.
• Day or night temperatures are below 32°F (0°C).
• Stop and Go driving.
• Extensive engine idling.
• Driving in dusty conditions.
• Short trips of less than 10 miles (16 km).
• More than 50% of your driving is at sustained high
speeds during hot weather, above 90°F (32°C).
• Trailer towing.
• Taxi, Police or delivery service (commercial service).
• Off-Road or desert operation. • If equipped for and operating with E-85 (ethanol)
fuel.
If ANY of these apply to you, then change your engine oil
at every interval shown in schedule “B” of the “Mainte-
nance Schedules” section of this manual.
If none of these apply to you, then change your engine oil
at every interval shown on schedule “A” of the “Main-
tenance Schedules” section of this manual
NOTE: Under no circumstances should oil change in-
tervals exceed 6000 miles (10 000 km) or 6 months
whichever comes first.
Engine Oil Selection
For best performance and maximum protection under all
types of operating conditions, the manufacturer only
recommends engine oils that are API certified and meet
the requirements of DaimlerChrysler Material Standard
MS-6395. MAINTAINING YOUR VEHICLE 421
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NOTE: Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
WARNING!A hot exhaust system can start a fire if you park over
materials that can burn. Such materials might be
grass or leaves coming into contact with your ex-
haust system. Do not park or operate your vehicle in
areas where your exhaust system can contact any-
thing that can burn. In unusual situations involving grossly malfunctioning
engine operation, a scorching odor may indicate severe
and abnormal catalyst overheating. If this occurs, the
vehicle should be stopped, the engine shut off and the
vehicle allowed to cool. Thereafter, service, including a
tune-up to manufacturer’s specifications, should be ob-
tained immediately.
To minimize the possibility of catalyst damage:
• 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 engine by pushing or towing the
vehicle.426 MAINTAINING YOUR VEHICLE

CAUTION!Do not overfill. Dirt and water in the transmission
can cause serious damage. To prevent dirt and water
from entering the transmission after checking or
replenishing fluid, make certain that the dipstick cap
is reseated properly.
Fluid and Filter Changes
Automatic transmission fluid should be changed on all
transmissions as follows:
Normal Usage — No change necessary
Severe Usage (fluid and filter) — Refer to Maintenance
Schedule “B” Severe Usage is defined as:
• Police, taxi, limousine, commercial type operation, or
trailer towing where the vehicle is driven regularly for
more than 45 minutes of continuous operation.
NOTE: Refer to Section 8 of this manual for Mainte-
nance Schedules.
If the transmission is disassembled for any reason, the
fluid and filter should be changed.
Special Additives
Do not add any fluid additives to the transmission. The
only exception to this policy is the use of special dyes to
aid in detecting fluid leaks. The use of transmission
sealers should be avoided as they may adversely affect
seals. MAINTAINING YOUR VEHICLE 445
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EMISSION CONTROL SYSTEM MAINTENANCE
The “Scheduled” maintenance services, listed in bold
type must be done at the times or mileages specified to
assure the continued proper functioning of the emission
control system. These, and all other maintenance services
included in this manual, should be done to provide best
vehicle performance and reliability. More frequent main-
tenance may be needed for vehicles in severe operating
conditions such as dusty areas and very short trip
driving.
Inspection and service also should be done any time a
malfunction is suspected.
NOTE: Maintenance, replacement, or repair of the emis-
sion control devices and systems on your vehicle may be
performed by any automotive repair establishment or
individual using any automotive part, which has been
certified pursuant to U.S. EPA or, in the State of Califor-
nia, California Air Resources Board regulations. MAINTENANCE SCHEDULES
There are two maintenance schedules that show the
required service for your vehicle.
First is Schedule “B” . It is for vehicles that are operated
under the conditions that are listed below and at the
beginning of the schedule.
• Day or night temperatures are below 0° C (32° F).
• Stop and go driving.
• Extensive engine idling.
• Driving in dusty conditions.
• Short trips of less than 16 km (10 miles).
• More than 50% of your driving is at sustained high
speeds during hot weather, above 32° C (90° F).
• Trailer towing. 466 MAINTENANCE SCHEDULES
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SCHEDULE “B”
Follow schedule “B” if you usually operate your vehicle
under one or more of the following conditions. Change
the automatic transmission fluid and filter every 96 000
km (60,000 miles) if the vehicle is usually operated under
one or more of the conditions marked with an  .
• Day or night temperatures are below 0° C (32° F).
• Stop and go driving.
• Extensive engine idling.
• Driving in dusty conditions. • Short trips of less than 16 km (10 miles).
• More than 50% of your driving is at sustained high
speeds during hot weather, above 32° C (90° F).
• Trailer towing. 
• Taxi, police, or delivery service (commercial ser-
vice). 
• Off-road or desert operation.
• If equipped for and operating with E-85 (ethanol)
fuel. SCHEDULE “B” 469
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Miles 108, 000 111, 000 114, 000 117, 000 120, 000
(Kilometers) (180 000) (185 000) (190 000) (195 000) (200 000)
Inspect the serpentine drive belt on 3.3 liter
and 3.8 liter engines, replace if necessary. ‡ X
Change the automatic transmission fluid and
filter.
X
Replace the air conditioning filter. XX
‡ This maintenance is not required if previously replaced.

This maintenance is required only for police, taxi,
limousine type operation, or trailer towing. Inspection and service should also be performed anytime
a malfunction is observed or suspected. Retain all re-
ceipts. SCHEDULE “B” 477
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Compass Variance ....................... 170
Computer, Trip/Travel .................... 171
Console, Overhead ....................... 167
Console, Removable ................... 193,194
Contract, Service ........................ 488
Coolant Pressure Cap (Radiator Cap) .......... 436
Cooling System ......................... 434
Adding Coolant (Antifreeze) .............. 436
Coolant Capacity ...................... 461
Coolant Level ...................... 434,437
Disposal of Used Coolant ................ 437
Drain, Flush, and Refill .................. 435
Inspection ........................... 437
Points to Remember .................... 438
Pressure Cap ......................... 436
Radiator Cap ......................... 436
Selection of Coolant (Antifreeze) ...... 435,461,462
Cruise Control (Speed Control) .............. 164
Cruise Light ........................... 219 Cup Holder ......................... 187,450
Customer Assistance ..................... 486
Data Recorder, Event ...................... 73
Daytime Running Lights ................... 153
Dealer Service .......................... 419
Defroster, Rear Window ................... 304
Defroster, Windshield ................ 90,283,295
Diagnostic System, Onboard ................ 416
Digital Video Disc (DVD) Player ............. 259
Dimmer Control ........................ 152
Dipsticks
Automatic Transmission ................. 444
Oil (Engine) .......................... 420
Disabled Vehicle Towing ................... 408
Disposal
Antifreeze (Engine Coolant) ............... 437
Engine Oil ........................... 423
Domelight ............................. 152 INDEX 499
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