Thread: Nissan Leaf
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Old 10-26-2014, 01:58 PM   #58 (permalink)
gone-ot walking...
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Originally Posted by MetroMPG View Post
Is it just the odometer, or the speedometer too?
FWIW, the local speedometer shop (which also calibrates the Arizona Highway Patrol vehicles) states that on GM veicles the ECM data is ≈100% accurate to the odometer, but is automatically artificially *incremented* by +2 mph -- by the ECM -- to the speedometer.

So, the odometer is purposely MORE accurate than the speedometer.

And, I *see* that ≈+2 mph offset on my SGII on both 2004 & 2009 Pontiac Vibes, 2011 Chebby Cruze, and newest 2014 Prius. So, it looks *universal* to me.

Last edited by gone-ot; 10-31-2014 at 09:56 PM..
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