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Thread: Start Keyless Entry & Start System with Dead Battery?

  1. #1
    Registered Member

    2011 Mazda CX-9 Touring

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    Mar 2011
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    Fairfax, VA
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    2

    Start Keyless Entry & Start System with Dead Battery?

    This has not happened yet, but out of curiosity, how would one go about starting a CX-9 with the advanced keyless entry system if the battery was totally drained and the doors were locked (like kids leave interior light on over the weekend)? Since there is no physical key, how would you get in to pop the hood to charge the battery? Just curious when this happens with my new car.

  2. #2
    Registered Member

    2010 CX-9 GT

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    Feb 2010
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    Dayton, OH
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    110
    There actually is a physical key. One the end of the key fob, there is a small latch on the back that releases the key. Which can then be used to unlock the door.
    2010 CX-9 GT AWD
    Cooper Red Mica/Sand
    Moonroof/Bose Package, Nav System, Roof Rack, Remote Engine Start, Class III Hidden Hitch, Softride hitch mounted 4 bike rack, and of course... a Buckeye Trailer Hitch Cover

    2003 Mazda 6S
    Dark Steel Metallic/Black
    Aluminum gas cover, air box mod

  3. #3
    Registered Member Force-1's Avatar

    2008 CX-9

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    Nov 2007
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    Albuquerque, NM
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    476
    Rtom!
    2008 GT AWD, GT Assist Pkg, Moonroof/Bose Pkg
    Sparkling Black Mica
    ***Gone but not forgotten***

  4. #4
    Track Dealer L8APEX_RX8's Avatar

    Mazda RX-8 6MT Touring, Mazda CX-9 GT

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    Feb 2012
    Location
    Roswell, GA
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    4
    Good to know, this was the one thing that I have worried about with our new CX-9. Glad I found the answer...I will have to check that out tonight when I get home.
    Last edited by L8APEX_RX8; 02-14-2012 at 09:29 AM.
    2004 Titanium Gray Mazda RX-8 6MT Touring...more track car than street car.
    2010 Crystal White Pearl CX-9 GT FWD

  5. #5
    Registered Member tex2670's Avatar

    2012 CX-9 GT AWD, Copper Red/Sand

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    Mar 2012
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    Philly
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    Quote Originally Posted by wvufan View Post
    This has not happened yet, but out of curiosity, how would one go about starting a CX-9 with the advanced keyless entry system if the battery was totally drained and the doors were locked (like kids leave interior light on over the weekend)? Since there is no physical key, how would you get in to pop the hood to charge the battery? Just curious when this happens with my new car.
    If the CAR battery is dead, you can't start the car, smart key or regular key. Like the prior post said, you slide the mechanical key out of the end of the fob, and unlock the door. But--when you get a jump, you can start the car like you normally would, once the car battery has enough charge.

  6. #6
    Registered Member ceric's Avatar

    2008 CX-9 GT AWD, 2014 Mazda3 sGT hatchback

    Join Date
    Jan 2008
    Location
    Northern California
    Posts
    3,664
    If the 12V battery was in question, the mechanic key won't help starting the car. You can enter the car with it.
    If the button battery in the key is in question, then, the mechanical key can save the day.
    2008 CX9 GT AWD + Assist Pkg + Moonroof Pkg + BSM
    ....Stormy Blue Mica / Beige
    2014 Mazda3 sGT hatchback
    ....Soul Red Metallic / Almond

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