How to calibrate 2nd gen CX5 speedometer

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CX5
Hi,

I'm planning to install a set larger tires but I couldn't find any post in the forum that has anyone successfully calibrated their speedo.
Do you think Mazda dealer will be able to help me with this?
I also couldn't find any aftermarket tools to do this.
 
Depending on how much bigger in circumference you may find it's not worth it.
And I simply dont believe anyone is willing to calibrate speedometer which will also affect the odometer. And tampering odometer is a federal offense!
 
Actually the dealer certainly can do this, as mine has told me. Not something you can do in the driveway.
 
Just recalibrate your brain to realize the speedo is off. :)
 

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