2007 DODGE GRAND CARAVAN turn signal

you understand and save you concern about these “ap-
parent” malfunctions, you must understand a point or
two about the transmission and reception of radio sig-
nals.
Two Types of Signals
There are two basic types of radio signals... AM or
Amplitude Modulation, in which the transmitted sound
causes the amplitude, or height, of the radio waves to
vary... and FM or Frequency Modulation, in which the
frequency of the wave is varied to carry the sound.
Electrical Disturbances
Radio waves may pick up electrical disturbances during
transmission. They mainly affect the wave amplitude,
and thus remain a part of the AM reception. They
interfere very little with the frequency variations that
carry the FM signal. AM Reception
AM sound is based on wave amplitude, so AM reception
can be disrupted by such things as lightning, power lines
and neon signs.
FM Reception
Because FM transmission is based on frequency varia-
tions, interference that consists of amplitude variations
can be filtered out, leaving the reception relatively clear,
which is the major feature of FM radio.
NOTE: The radio, steering wheel radio controls (if
equipped), and 6 disc CD/DVD changer (if equipped)
will remain active for up to 10 minutes after the ignition
switch has been turned off. Opening a vehicle front door
will cancel this feature. UNDERSTANDING YOUR INSTRUMENT PANEL 221
4

Tuning
Press the TUNE control up or down to increase or
decrease the frequency. If you press and hold the button,
the radio will continue to tune until you release the
button. The frequency will be displayed and continu-
ously updated while the button is pressed.
Radio Data System (RDS)
The Radio Data System allows radio broadcasting sta-
tions to send data signals on a subcarrier frequency
which is added to the stereo signal. RDS was developed
to give FM receivers user-friendly features, such as
Program Service name (PS) and Program Type (PTY).
Program Service name is typically used by the broad-
caster to display the station’s name or call letters, for
example  WNIC  . Typically these are 8 characters in
length and are displayed by the radio for those stations which are broadcasting this information. PTY (Program
Type) is used to characterize the station’s program ma-
terial, for example  Rock Music  .
PTY (Program Type) Button
Pressing this button once will turn on the PTY mode for
5 seconds. If no action is taken during the 5 second time
out the PTY icon will turn off. Pressing the PTY button
within 5 seconds will allow the program format type to
be selected. Many radio stations do not currently broad-
cast PTY information.
Toggle the PTY button to select the following format
types:
Program Type Radio Display
Adult Hits Adult Hits
Classical Classical
Classic Rock Classic Rock
College CollegeUNDERSTANDING YOUR INSTRUMENT PANEL 223
4

Towing Requirements — Trailer Lights & Wiring
Whenever you pull a trailer, regardless of the trailer size,
stop lights and turn signals on the trailer are required for
motoring safety.
The Trailer Tow Package may includ ea4and7pin
wiring harness. Use a factory approved trailer harness
and connector.
NOTE: Do not cut or splice wiring into the vehicles
wiring harness.
The electrical connections are all complete to the vehicle
but you must mate the harness to a trailer connector.
Refer to the following illustrations. 4 - Pin Connector380 STARTING AND OPERATING

HAZARD WARNING FLASHER
The hazard flasher switch is located in the center of
the instrument panel above the radio.
To engage the Hazard Warning Flashers, depress the
switch on the instrument panel. When the Hazard Warn-
ing Switch is activated, all directional turn signals will flash on and off to warn oncoming traffic of an emer-
gency. Push the switch a second time to turn off the
flashers.
This is an emergency warning system and should not be
used when the vehicle is in motion. Use it when your
vehicle is disabled and is creating a safety hazard for
other motorists.
When you must leave the vehicle to seek assistance, the
Hazard Warning Flashers will continue to operate even
though the ignition switch is OFF.
NOTE: With extended use, the Hazard Warning Flash-
ers may wear down your battery.Hazard Flasher Switch384 WHAT TO DO IN EMERGENCIES

▫ Front Suspension Ball Joints ..............430
▫ Steering Shaft Seal ....................431
▫ Steering Linkage ......................431
▫ Drive Shaft Universal Joints ..............431
▫ Body Lubrication .....................431
▫ Windshield Wiper Blades ................432
▫ Windshield And Rear Window Washers .....432
▫ Exhaust System ......................433
▫ Cooling System .......................434
▫ Hoses And Vacuum/Vapor Harnesses .......439
▫ Brakes .............................439
▫ Master Cylinder — Brake Fluid Level Check . . 441
▫ Fuel System Hoses ....................442 ▫ Automatic Transmission ................442
▫ Front And Rear Wheel Bearings ...........446
▫ Appearance Care And Protection From
Corrosion ...........................446
▫ Cleaning The Instrument Panel And Underseat
Cup Holders ........................450

Fuses — Integrated Power Module ..........452

Vehicle Storage ........................455

Replacement Light Bulbs .................455

Bulb Replacement ......................456
▫ Headlights ..........................456
▫ Front Park/Turn Signal And Sidemarker
Lights .............................458
▫ Fog Lights ..........................459412 MAINTAINING YOUR VEHICLE

▫ Rear Tail, Stop, Turn Signal, Side Marker And
Back-Up Lights .......................459
▫ Center High Mounted Stop Light (CHMSL) . . . 460
▫ License Light ........................461

Fluids And Capacities ...................461
Fluids, Lubricants And Genuine Parts ........462
▫ Engine .............................462
▫ Chassis ............................463 MAINTAINING YOUR VEHICLE 413
7

NOTE: For lighted switches, see your dealer for replace-
ment instructions.
All of the interior bulbs are glass wedge base or glass
cartridge types. Aluminum base bulbs are not approved
and should not be used for replacement.
LIGHT BULBS — Exterior Bulb Number
Back-up, Tail, Stop, Turn Signal, & Sidemarker . . . 3057
Center High-Mounted Stop Light ............. 921
Fog Light — If Equipped .................. 9145
Front Side marker, Park/Turn Signal ........ 3457AK
Headlight ............................. 9007
License ................................ 168 BULB REPLACEMENT
Headlights
1. Remove the three screws securing the headlight mod-
ule.456 MAINTAINING YOUR VEHICLE

Front Park/Turn Signal and Sidemarker Lights
1. Remove the three screws securing the headlight mod-
ule.
2. Twist the turn signal socket to remove from the
headlight module and pull bulb from socket. 3. Replace bulb, reinstall socket and then reinstall the
headlight module.458 MAINTAINING YOUR VEHICLE