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Originally Posted by tedpark
does anybody know if there is any kind of third-party "tuning" available - or even better - has Toyota considered providing more than one sanctioned programming so different ones of us can select a program better suited to our needs?
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Interesting project!
You know/observe you're approaching a certain grade of hills and you can prepare for that.
However, the problem is the vehicle does not know any terrain coming.
There is a study using Navi GPS system...
http://privatenrg.com/#terrainfollowing
It looks Toyota and Denso have in patent pending status.
Ken@Japan