Question about 2007 Pontiac Vibe

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2009 Pontiac Vibe speedometer inaccurate

Hi there. The speedo on my new Vibe (2009 GT) is 3-5 mph off, depending on my speed, 5 mph difference at 65 mph. The dealer tested and confirmed the discrepancy but says GM won't authorize a fix because it's a recalibration and they're not authorized to recalibrate. I complained enough that they went ahead and replaced the fly wire (whatever that is) but it didn't change anything. The dealer also tested other models on their lot and find the same thing in all of them.

My question to you is, can you explain why GM can't fix this? As far as pursuing my complaint, it's already been given case numbers by GM and the California Attorney General. I'd feel better if I understood why GM won't touch this. Thanks. P.S. Your product field would only accept 2007.

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  • jamesp2000 Dec 14, 2008

    My 2009 Vibe 2.4L has the exact same problem the Speedometer is reading around three MPH slow at 65 MPH.

  • robd11 Dec 31, 2008

    I filed a product liability issue with Pontiac. They called me back and said their speedometer can be +- 5mph off. They are not going to do anything about it. The dude I finally got to (a Team Supervisor) would not pass me up the chain or give me any number to call in quality.

    Dealer has advised me to file a lemon law complaint which I have done. We all need to do this to put pressure on pontiac and to let people know that they can expect to live this type of quality.

    Easy to file and after the answer I received, it wasn't even a choice.

  • jloporto Feb 26, 2009

    The speedometer is off by 3 to 5 miles per hour. The dealer confirmed this and replaced the instrument cluster which did not fix the problem. The also were not able to enter the milage on the new instruement cluster and had to send the new cluster back to the manufacturer to have the mileage entered.

  • Anonymous Mar 25, 2009

    I am so happy to see this posting. I recently bought a 2009 Vibe and from first driving it I thought the speedometer reading was inaccurate reading about 5 mph faster than I was traveling. This was confirmed now that I have passed many construction zone speed indicators. I am going to seek a repair and resolution with my dealer.

  • Anonymous Mar 30, 2014

    How does the steering have anything to do with a service stabilitrac message, which is what my GM dealer told me and no guarantee it will solve problem. 2007 Buick Regnier CXL with AWD and always seems to sway on slippery roads.



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Because pontiac vibe is a toyota matrix clone and both are made in two different places/countries I guess pontiac ( better looking one - new model :) has different size tires . Speedometer is calibrated to standard size tires . If you have smaller or bigger you will see some differences. Of course it may be few other things but let's start with the simplest one. Good luck

Posted on Sep 12, 2008

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It's common in ALL models of Vibe/matrix/corolla. its due to a last minute tire size change by the manufacturer. they used 205-55-16, instead of 215-55-16.that 10mm different in tire, makes up for the 3-5 mph reading.
i had gotten ahold of the 2003 dealer specs booklet from pre launch of the vibe, and it stated the STOCK tire size, was 215-55-16
By putting 205 instead of 215 on the cars, they saved about $20 per tire, in the final cost of the vehicle, and still charged full tire price.

Posted on Jul 13, 2012

  • ltw8018
    ltw8018 Jul 13, 2012

    i use 215-55-16 on my Vibe GT, and no longer have the mph difference.


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The tire size is listed on the b-pillar, door or under the hood. Smaller circumferences cause the speedometer to run faster and the adverse. The japaneeze normally set the spedometer differently through the break in period. After this period the flash is modified to accommodate. Since this is a toyota there is no repair at the GM level. No and you may not take this vehicle to toyota, they will send you to GM. This is the chances you take when you purchase a foreign vehicle.

Posted on Dec 02, 2011

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Check out PIC3100B - Odometer Accuracy. After seeing the same probem with my new 09 Vibe, they replaced the dashboard cluster. After calls to GMC by the dealer, there were told about this bulletin that was just recently updated (imagine that).

Says a tolerance of plus of minues 4% in accuracy is allowed.

I've been trying to find a complaint form on Pontiac's site as I consider this unacceptable but I can't get to magically times out.

Anyone else have an idea?

Posted on Oct 31, 2008

I have the same problem and all i can tell you is that the tire size for the 17in. rims is the same as the 18 in. rims p215/45R18 and P215/45R17 this will throw the speedo off.

Posted on Oct 25, 2008

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