Symptom Troubleshooting Index

Symptom	Diagnostic procedure	Also check for
Navigation system stays on the GPS initialization screen	System Initialization (see AUDIO-NAVIGATION UNIT AND HDD SERVICE PRECAUTIONS )	Audio-navigation unit Internal defect in GPS antenna GPS antenna/cable is disconnected or damaged Aftermarket metallic window tint Software not up to date 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 )	Audio-navigation unit Internal defect in GPS antenna GPS antenna/cable Aftermarket metallic window tint PCM (speed and fuel pulses) Harness/fuses/switches
System always comes up in in-line diagnostic mode	Factory diagnostic screen in Line Diag (see FACTORY DIAGNOSTIC SCREEN IN LINE DIAG )
Navigation system will not accept security code	Symptom Troubleshooting (see NAVIGATION SYSTEM WILL NOT ACCEPT SECURITY CODE )	Anti-theft code not matching
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 (G651) Navigation unit Software not up to date Low battery voltage Harness/fuses/switches
GPS icon is white or not shown	Symptom Troubleshooting (see GPS ICON IS WHITE OR NOT SHOWN )	Audio-navigation unit Internal defect in GPS antenna Aftermarket accessories connected to the system GPS antenna/cable Aftermarket metallic window tint 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 )	Audio-navigation unit GPS antenna/cable Aftermarket metallic window tint PCM (speed signal) Internal defect in GPS antenna
No picture is displayed	Symptom Troubleshooting (see SYMPTOM TROUBLESHOOTING )	Software not up to date Audio-navigation unit Navigation display unit Harness/fuses/switches
Picture has lines or rolls	Symptom Troubleshooting (see PICTURE HAS LINES OR ROLLS )	Aftermarket accessories connected to the system Audio-navigation unit Navigation display unit 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 )	Software not up to date Audio-navigation unit Navigation display unit Aftermarket accessories connected to the system 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) Audio-navigation unit Low or weak battery Harness Client account status Area outage Area not covered
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 )	Audio-navigation unit The gauge brightness level is set to High in day or night mode Navigation display unit Gauge control module (CAN) The navigation display brightness is not set to Auto mode Harness/fuses/switches
System locks up or freezes constantly	Symptom Troubleshooting (see DISPLAY DAY/NIGHT MODE DOES NOT WORK OR DOES NOT WORK PROPERLY )	Audio-navigation unit Software not up to date 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 )	Volume or voice feedback setting (see ) Audio-navigation unit Stereo/amplifier Harness/fuses/switches
Voice control does not work/respond	Symptom Troubleshooting (see VOICE CONTROL DOES NOT WORK/RESPOND )	Audio-navigation unit Microphone Harness/switches HandsFreeLink control unit
Navigation cannot control HVAC by voice command	Symptom Troubleshooting (see NAVIGATION CANNOT CONTROL HVAC BY VOICE COMMAND )	Software not up to date Harness/fuses/switches Wrong audio-navigation unit (model code) B-CAN DTCs
Navigation cannot control XM radio	Symptom Troubleshooting (see NAVIGATION CANNOT CONTROL XM RADIO )	Software not up to date Audio-navigation unit AcuraLink control unit(XM receiver) (USA models) or XM receiver (Canada models) Harness
Navigation cannot control audio system	Symptom Troubleshooting (see NAVIGATION DISPLAY STAYS ON WITH THE IGNITION SWITCH IN LOCK (0), OR IN THE OFF MODE )	Audio-navigation unit Harness Software not up to date
Interface dial buttons do not work	Symptom Troubleshooting (see INTERFACE DIAL BUTTONS DO NOT WORK )	Audio-navigation unit Navigation display unit Interface dial Harness/fuses/switches
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
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 Without a stored previous destination, the system can't route to a previous destination Enter a destination, and allow the system to route to it After the trip, the Previous Destinations button will be selectable
Address cannot be found or system gives poor routing	Verify proper operation and system limitations using the owner's service information See Answering client question about Navigation coverage in general troubleshooting	Database limitations (address not in database) Software not up to date Older database
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 latest up-dates No backup signal Wrong disc installed in navigation unit
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 (see VERSION ) for details on coverage differences	Software not up to date
Navigation display stays on with the ignition switch in LOCK (0), or in the OFF mode	Symptom Troubleshooting (see NAVIGATION DISPLAY STAYS ON WITH THE IGNITION SWITCH IN LOCK (0), OR IN THE OFF MODE )	Harness/fuses/switches Aftermarket accessories connected to the system
Navigation system will not go beyond the disclaimer screen and displays the OK button	Also see Interface dial buttons do not work	Software not up to date Audio-navigation unit
The navigation anti-theft code card is lost or missing	See anti-theft feature (see GENERAL TROUBLESHOOTING INFORMATION )
The vehicle icon lags behind when the vehicle turns	See self-inertial navigation limitations (see GENERAL TROUBLESHOOTING INFORMATION )	Aftermarket accessories connected to the system GPS antenna/cable Aftermarket metallic window tint
Navigation screen is darker than normal or takes time to brighten when it is cold	See LCD unit limitations (see MUTING LOGIC )	Compare to a known-good vehicle
The navigation clock is off by 1 to 3 hours after replacing the navigation unit	See service precautions (see AUDIO-NAVIGATION UNIT AND HDD SERVICE PRECAUTIONS )	Do map matching (see ENTERING THE SECURITY CODE ) GPS antenna/cable Aftermarket metallic window tint Check and adjust the clock settings Check the keyless remote linking
Time is not correct	Reset Time Adjustment in set-up See service precautions (see AUDIO-NAVIGATION UNIT AND HDD SERVICE PRECAUTIONS )	Software not up to date Reset Time Adjustment in set-up A defective GPS receiver in the audio-navigation unit
A POI cannot be found	See how to answer client questions about navigation coverage (see HOW TO ANSWER CLIENT QUESTIONS ABOUT NAVIGATION COVERAGE )	Software not up to date The database may be out of date Confirm the POI exists in a current production vehicle
A specific city cannot be found	See how to answer client questions about navigation coverage (see HOW TO ANSWER CLIENT QUESTIONS ABOUT NAVIGATION COVERAGE )	Software not up to date The database may be out of date Confirm the address exists in a current production vehicle
Error messages are displayed	See Error Message Table	Software not up to date The database may be out of date Confirm the address exists in a current production vehicle