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Symptom Troubleshooting Index

NOTE: Many problems are caused because the remotes have not been "linked." When troubleshooting a complaint, make sure the remotes are linked first.
DTC TROUBLESHOOTING INDEX

Symptom Diagnostic procedure Also check for
Navigation system stays on the GPS initialization screen
  • Navigation unit
  • Internal defect in GPS antenna
  • GPS antenna/cable is disconnected or damaged
  • Aftermarket metallic window tint
  • The wrong color DVD or version is installed
  • The DVD is damaged or dirty
  • Harness/fuses/switches
No picture is displayed Symptom Troubleshooting (see NO PICTURE IS DISPLAYED  )
  • Navigation unit
  • Internal defect in GPS antenna
  • GPS antenna/cable
  • Aftermarket metallic window tint
  • PCM (speed and fuel pulses)
  • Harness/fuses/switches
Vehicle position icon constantly leaves road, moves erratically, or is displayed very far from actual vehicle position Symptom Troubleshooting (see VEHICLE POSITION ICON CONSTANTLY LEAVES ROAD, MOVES ERRATICALLY, OR IS DISPLAYED VERY FAR FROM ACTUAL VEHICLE POSITION  )
  • Navigation unit
  • Internal defect in GPS antenna
  • GPS antenna/cable
  • Aftermarket metallic window tint
  • PCM (speed and fuel pulses)
  • Harness/fuses/switches
Picture is missing a color or tone or is an odd color Symptom Troubleshooting (see PICTURE IS MISSING A COLOR OR TONE OR IS AN ODD COLOR  )
  • The wrong color DVD or version is installed
  • The DVD is damaged or dirty
  • Navigation unit
  • Navigation display unit
  • Aftermarket accessories connected to the system
  • Harness/fuses/switches
Picture has lines, rolls, or is blurry Symptom Troubleshooting (see PICTURE HAS LINES, ROLLS, OR IS BLURRY  )
  • Aftermarket accessories connected to the system
  • Navigation unit
  • Navigation display unit
  • Harness/fuses/switches
Interface dial buttons do not work Symptom Troubleshooting (see INTERFACE DIAL BUTTONS DO NOT WORK  )
  • Navigation unit
  • The wrong color DVD or version is installed
  • The DVD is damaged or dirty
  • Navigation display unit
  • Interface dial
  • Harness/fuses/switches
GPS icon is white or not shown Symptom Troubleshooting (see GPS ICON IS WHITE OR NOT SHOWN  )
  • Navigation unit
  • Internal defect in GPS antenna
  • The wrong color DVD or version is installed
  • Aftermarket accessories connected to the system
  • GPS antenna/cable
  • The DVD is damaged or dirty
  • Aftermarket metallic window tint
  • Harness/fuses/switches
Voice guidance cannot be heard, is broken up, or there is static Symptom Troubleshooting (see VOICE GUIDANCE CANNOT BE HEARD, IS BROKEN UP, OR THERE IS STATIC  )
  • Navigation unit
  • Volume or voice feedback settings (see Owner's Manual)
  • Audio unit/Stereo amplifier
  • Harness/fuses/switches
Voice control does not work/respond Symptom Troubleshooting (see VOICE CONTROL DOES NOT WORK/RESPOND  )
  • Navigation unit
  • Microphone/voice control switch
  • Volume or voice feedback setting (see Owner's Manual)
  • HandsFreeLink control unit
  • Harness/fuses/switches
DVD screen error messages Symptom Troubleshooting (see DVD SCREEN ERROR MESSAGES  )
  • Navigation unit
  • The wrong color DVD or version is installed
  • Navigation display unit
  • The DVD is damaged or dirty
Navigation cannot control HVAC with voice command Symptom Troubleshooting (see NAVIGATION CANNOT CONTROL HVAC WITH VOICE COMMAND  )
  • HVAC control unit
  • Navigation display unit
  • The wrong color DVD or version is installed
  • The DVD is damaged or dirty
  • Harness/fuses/switches
Display day/night mode does not work or does not work properly Symptom Troubleshooting (see DISPLAY DAY/NIGHT MODE DOES NOT WORK OR DOES NOT WORK PROPERLY  )
  • Navigation display unit
  • HVAC control unit
  • Display brightness set to High
  • Gauge control module (CAN)
  • The wrong color DVD or version is installed
  • The DVD is damaged or dirty
  • Harness/fuses/switches
System locks up or freezes constantly Symptom Troubleshooting (see SYSTEM LOCKS UP OR FREEZES CONSTANTLY  )
  • Navigation unit
  • The wrong color DVD or version is installed
  • The DVD is damaged or dirty
  • Harness/fuses/switches
Vehicle icon wanders across the map when driving (does not follow a displayed road) or map or vehicle ICON spins Symptom Troubleshooting (see VEHICLE ICON WANDERS ACROSS THE MAP WHEN DRIVING (DOES NOT FOLLOW A DISPLAYED ROAD) OR MAP VEHICLE ICON SPINS  )
  • Navigation unit
  • GPS antenna/cable
  • Aftermarket metallic window tint
  • PCM (speed signal)
  • Internal defect in GPS antenna
Navigation system does not Map Match Refer to troubleshooting for vehicle icon wanders across the map when driving (see VEHICLE ICON WANDERS ACROSS THE MAP WHEN DRIVING (DOES NOT FOLLOW A DISPLAYED ROAD) OR MAP VEHICLE ICON SPINS  ).  
Navigation system does not accept security code Symptom Troubleshooting (see NAVIGATION SYSTEM DOES NOT ACCEPT SECURITY CODE  )
  • The wrong color DVD or version is installed
  • The DVD is damaged or dirty
Navigation display stays on with ignition switch in LOCK (0) Symptom Troubleshooting (see NAVIGATION DISPLAY STAYS ON WITH IGNITION SWITCH IN LOCK (0)  )
  • Harness/fuses/switches
  • Aftermarket accessories connected to the system
Navigation cannot control audio system Symptom Troubleshooting (see NAVIGATION CANNOT CONTROL AUDIO SYSTEM  )
  • Audio unit
  • Harness
  • The wrong color DVD or version is installed
  • The DVD is damaged or dirty
Navigation cannot control XM radio Symptom Troubleshooting (see NAVIGATION CANNOT CONTROL XM RADIO  )
  • The wrong color DVD or version is installed
  • The DVD is damaged or dirty
  • Audio unit
  • XM receiver
  • Harness
Navigation frequently asks for anti-theft code and/or needs GPS initialization Symptom Troubleshooting (see NAVIGATION FREQUENTLY ASKS FOR ANTI-THEFT CODE AND/OR NEEDS GPS INITIALIZATION  )
  • Loss of voltage or poor ground (G602)
  • Navigation unit
  • Software not up to date
  • Low battery voltage
  • Harness/fuses/switches
Traffic or Weather information is not shown on map screen Symptom Troubleshooting (see TRAFFIC OR WEATHER INFORMATION IS NOT SHOWN ON MAP SCREEN  )
  • AcuraLink (XM)
  • Navigation unit
  • Harness
Trip computer-no distance Symptom Troubleshooting (see TRIP COMPUTER-NO DISTANCE  )
  • PCM (speed and fuel pulses)
  • Harness/fuses/switches
Trip computer-no fuel information Symptom Troubleshooting (see TRIP COMPUTER-NO FUEL INFORMATION  )
  • Gauge control module (CAN communication)
  • Harness/fuses/switches
Rearview camera image does not come on or work properly Symptom Troubleshooting (see REARVIEW CAMERA IMAGE DOES NOT COME ON OR WORK PROPERLY  )
  • Check software for the latest up-dates
  • The DVD is damaged or dirty
  • No backup signal
  • The wrong color DVD or version is installed
Navigation does not call using the HFL Symptom Troubleshooting (see NAVIGATION DOES NOT CALL USING THE HFL  ) The wrong color DVD or version is installed
A POI cannot be found See HOW TO ANSWER CLIENT QUESTIONS ABOUT NAVIGATION COVERAGE 
  • The DVD is damaged or dirty
  • The database may be out of data. Confirm the POI exists in a current production vehicle
A specific city cannot be found See HOW TO ANSWER CLIENT QUESTIONS ABOUT NAVIGATION COVERAGE 
  • The DVD is damaged or dirty
  • The database may be out of data. Confirm the POI exists in a current production vehicle
Address cannot be found or system gives poor routing
  • Verify proper operation and system limitations using the navigation system manual
  • See Answering client question about navigation coverage in general troubleshooting
  • Database limitations (address not in database)
  • Wrong color DVD installed
  • Older database
Previous Destinations button is dim and not selectable in the Enter destination by screen (grayed-out) The vehicle may be new, or the client deleted the destination. Enter a destination, and allow the system to route to it. After the trip, the Previous Destinations button will be selectable.  
The map will not display the Southern portion of the U.S. or the Northern parts of Canada North American coverage is different for U.S./Canada markets. See the VERSION DIAGNOSTIC SCREEN  for details on coverage differences.
  • See Owner's Manual
  • The wrong color DVD or wrong market DVD is installed
Time is not correct Reset Time Adjustment in set-up.  
Today's Destinations button is dim and not selectable in the Enter destination by screen (grayed-out) The client has not entered a group of locations for Today's Destinations. This is normal. The button is only selectable if the client is using this function. See Owner's Manual
Navigation unit will not eject or accept the navigation DVD Symptom Troubleshooting (see NAVIGATION UNIT WILL NOT EJECT OR ACCEPT THE NAVIGATION DVD  )