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Mazda CX-7 Navigation System

cxrabbitcxrabbit Posts: 134
Radio Flicker issue:


Radio Button Lights started flickering. I have the Technology Package, and it's JUST the buttons for the radio (around the nav screen), but not including the navigation screen. All other interior and exterior lighting appears to be fine. It started tonight... lasted about 10 minutes... and then stopped.


First time since last Friday and the radio lights were flickering tonight again. I go in for an oil change next week, so I'm going to mention it. Audio guy took a quick look and didn't see anything wrong. Someone on these forums reported a similar problem as well (but no known cause yet).

Interestingly enough, it wasn't cold tonight (like it was last week when it happened). It also only seemed to start after I had been driving the car for a while (more than 30 minutes). I do a lot of local driving and often am not in the car longer than 10 minutes.

I can't link it to anything else. Turned off power seats it still continued. Radio off it still continued. Heat off it continued. Nav screen and other interior/exterior lights seem fine.


Went for 1,000 mile oil change.
Dealer couldn't replicate the problem (which I knew would happen). I have to try to bring it in when it's occurring. They did do a PCM Flash and the other (previously mentioned) person with the same problem said that fixed it (or was just a coincidence) - so my fingers are crossed.


Last night the radio lights were flickering again. PCM Flash did not resolve it.

I took the car back to the dealer today. It has been difficult to demonstrate the problem because during the day you cannot see that the radio buttons are lit (and they aren't lit unless the headlights are on). It also doesn't happen until after the car is good and warmed up (after I've been driving it at least 30 minutes). I did drive it for a good hour before bringing it, hoping they would see the issue when it was pulled into the (darker) shop. The technician connected the car to a computer and it did not return any diagnostic codes/problems. He then called the Mazda Tech Line and they said "there have been some issues with the radio/navigation system but not this specific problem" (and my symptoms do not include the navigation screen - that seems to be fine). They told the tech to remove the radio and check connections first and that the unit might need to be replaced.

This was not something they could do today (they were on a limited schedule because of the holiday), so I am scheduled to bring the car back on January 4th (their earliest appointment available). I will be leaving the car with them for the day.

Everyone at Mazda has been VERY nice and professional, and they are trying their best to track down the issue. Right now it's more of an annoyance to me than a serious issue, but I just hope it's not an indication of other electrical problems.

It was curious to me that the Mazda Tech Line said there were some issues. Anyone else having issues?

I am also directly in touch with Bose, and will keep you posted of the outcome.


  • Anyone know how to disable the nav safety feature that prevents you from entering destinations while the vehicle is moving?
  • vbbuiltvbbuilt Posts: 498
    This applies to model's with the Tech Package.

    The owner's manual seems to indicate that the Voice Command can be suspended. Sometimes, I want to use the steering column's MUTE button for just that...mute. However, with Nav installed, the mute button activates Voice Command. The owner's manual indicates that if I press the Voice Command button aka Mute for .7 seconds continually, then Voice Command is suspended. No such luck. The audio system is still broadcasting music. If I press the Voice Command button again, the audio goes mute for a few seconds, but the NAV system interprets the silence as an unrecognized command.

    The owner's manual is clearly wrong or poorly written or I'm just flat-out doing something wrong.

    Any thoughts?

  • What they mean is that you can cancel the current voice command input. If you press the voice command button and then decide not to enter a command, you can either say "Cancel" or press the button and hold it for .7 seconds.
  • Before the CX-7, I used the portable Garmin C330. Navteq provides the database for both systems. With the garmin, if I wanted to find a WalMart near me, I just typed in Walmart and it would list all of the Walmarts starting from the closest one. If I try this with the CX-7, I get only a couple of listing and they could be any where within the U.S, but none near me. It would list a couple 50 to 100 miles from me.

    The best I can determine is that the CX-7 only list shopping centers or Malls, not individual stores like the Garmin. I just want to know if the CX-7 data base is that much more limited or is it a Software issue or is it the way I am using it. I have been trying to get an answer from both Mazda and Navteq. They both referred me to the other :( . At least Mazda is still trying to figure it out. BTW, I do have the Nav set for CA and NV. The garmin only has an internal 2.5 GB hard drive and the CX-7 could use the full 4.7 GB of the DVD so it could have even more data than the Garmin, but I wonder if Mazda skimped licensed a cheaper more limited version.
  • vbbuiltvbbuilt Posts: 498
    I'm beginning to wonder about that as well. I have an Eclipse AVN 2524 in my Santa Fe and it can find many entries based on user input. Not so with the CX7 NAV. :(
  • tidestertidester Posts: 10,110
    Issues? Concerns? Discuss them here!
  • I agree that this wonderful SUV should include the Bluetooth option but... I order the Parrot CK3200 but could not get someone to installed for me. Bestbuy told me I need to contact Parrot... Did any body have a solution? Is any way to get Bluetooth to the CX-7? :blush:
  • Is any way that you can preset the NAV system to pop up the NAV Screen?

    For example if you are not using the Nav and instead using the Satelite Radio or FM Radio... Maybe browsing through the stations.... The NAV screen keep poping up... Is any way to keep the SOUND creen instead the NAV screen? :mad:
  • vbbuiltvbbuilt Posts: 498
    Yes, it's in the user options. I don't have the NAV screen in front of me, but just flip through the user screens and you'll see an option that allows you to defeat the auto default to bring up NAV. Once set, then if you want NAV, you press NAV and if you want audio, you select the button.

  • I recently leased a CX7 and love it. I was wonder though, I have a 6 CD changer (that came with the car) that can play MP3's and the system uses a DVD CD to update maps - which I assume goes into the same slot as the CD's (an avail. slot of course), so why can't I burn MP3's on a DVD and have 6 DVD's with 4.5 GB of music rather than 6 CD's at 700 MB of music? Why does the system fail to read the DVD v.s. a CD? From a PC standpoint a DVD ROM player is just as cheap as a CD ROM player.

    Thank you

  • vbbuiltvbbuilt Posts: 498
    Good assumptions! One would think a really well-designed NAV system would do exactly as you surmise.

    But....The Nav in the CX7 does not plays DVDs - it will play standard CDs or MP3 encoded CDs. The map disk goes into the NAV deck under the passenger seat and it isn't meant to be swapped with any other disk.

  • nmknmk Posts: 111
    OK, can anyone explain this.
    Set the nav system with Lake Placid, NY as our destination.
    Drove from Hudson NY to Lake Placid for an overnight. This morning climbed Mt. Whiteface nearby. Set the nav system to return home to Hudson, NY.

    It sent us north one way, and south another way. Any explanation?

  • Thanks for the info Vince. I never thought that there was a separate DVD ROM player elsewhere in the car.

  • vbbuiltvbbuilt Posts: 498
    You're welcome!

    Understand that unit is NOT designed to play DVD movies. It's only purpose is processing the DVD map disk.

  • aviboy97aviboy97 Posts: 3,159
    I'm not quite sure what you are trying to say, but, the NAV system does give you three route options, and you must have chosen one that was not the most direct.
  • anyone had any luck with mazda or navteq for updated maps?
  • vbbuiltvbbuilt Posts: 498
    I checked on this about a month ago. NAVTEQ denied that they provided any support to the CX7. Mazda indicated that they're in negotiations with NAVTEQ to provide support. If you go to, you'll see that CX-7 isn't listed.

    I'm guessing we'll have to wait at least a year before we'll know if updates are available. :(

  • nmknmk Posts: 111
    Regarding the change of instructions on destinations, you may well be correct. In any event we disregarded the nav instructions for the last 30 miles as we knew of a better way home. Thanks for your remarks,

  • vbbuiltvbbuilt Posts: 498
    The nice thing about the Nav system, is that if necessary, you can always tell Madge (that's my nick for my female Nav system) to "button" it and that the master knows his way to the next destination. Of course, Madge is occasionally smarter than I am, but not often! :P

  • nmknmk Posts: 111
    Funny thing, Vince, is that my wife has a penchant for naming our possessions.

    The CX is named "Maddy the Mazda". We have a Mercury wagon called "Mindy the Merc".

    I haven't told my wife that my first real girl friend was named "Maddy" and I have not intention of ever telling her either. (Grin)
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