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jnamorato

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  • First Name
    Jim

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  • Lexus Model
    GX470
  • Lexus Year
    2005
  • Location
    Virginia (VA)

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  1. I was tagged recently on interstate 85 South in VA (speed limit is 70) going 87 MPH, but my cruise control was set at 72. Took it to the dealer last week to get it checked out - they found nothing wrong, took it to get calibrated, they only found it off by 3MPH at a speed of 70MPH. Driving it now with a GPS speed app, and it varies over long stretches. Sometimes it is only by 5 MPH (i.e. GPS is telling me I am going 70, speedo shows 65), sometimes it is 10-12 MPH off - occasionally, the speedo is faster than the GPS (my wife said it was very erratic on her way home today). These inconsistencies will often last for tens of miles at a time (i.e. 10-12 mph faster for a long stretch, or 5mph faster for a long stretch - it is not that it fluctuates wildly while driving - but there does seem to be some correlation to hard acceleration, also seems to "reset" itself when I go into park or turn the car off - and may be a different speed off when I start to run the car again). 1) First and foremost, I need to get the problem fixed - this is my wife's primary car and she is driving my two boys around all over the place. I am working with the dealership (they have been good to work with so far) - but they seem to think it is a needle in a haystack issue that will be very difficult to diagnose and fix. My independent mechanic (Toyota master certified and I have worked with them for over 10 years) basically said lexus speedometers are never wrong. 2) I need to fight the reckless ticket - the lawyer I contacted said my video evidence (had my bro in law video the GPS app next to the speedo while I was driving) would basically be inadmissible in court. Has anyone heard of this type of issue before, and any ideas of how to fix it or what could be wrong? Any guidance or advice would be greatly appreciated. Jim
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