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Premium Member
2016 Outback Premium 2.5 CVT w/EyeSight+SRVD
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7,722 Posts
Never heard of that being an issue in any car ever.
Old-technology analog gauge movements didn't have issues with zero-point alignment on power up, but modern stepper-motor gauge movements can. Besides the "gee whiz" effect, the full-scale pointer sweep on power up ensures that stepper-motor movements are initialized properly.

On a more mundane level, stepper-motor gauges were first introduced on high-dollar automobiles about 25 years ago. The fancy full-scale sweep may serve a secondary function as advertising that a mid-line car like the Legacy/Outback now incorporates the same high-end technology.
 

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2015 Outback 2.5i Limited, Ice Silver/Black
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2,603 Posts
To show it goes to 11.
 

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2016 OB Premium with Eyesight
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533 Posts
To show it goes to 11.
>:)

I recall certain domestic trucks did the same thing with their gauges on diesel models. Helped to time the glowplugs when the "official" glowplug ready light burned out.
 

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Super Moderator
2008 OB Limited 2.5i, Portland OR USA
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8,516 Posts
Is it a good idea to run an initial power-up diagnostic / calibration / functional verification on important indicators to assure they operate properly? Yes, for the reason that @ammcinnis noted.

Is it necessary to have a menu selection for (I presume) repeating this operation at any other time that further complicates an already complicated menu system? Probably not.

But it's pretty typical of Japanese design practice.
 

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2015 Carbide Gray 3.6R
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591 Posts
If the sweep was necessary for calibration/verification, they wouldn't let you turn it off. The gauge sweep on startup is a whiz bang "isn't this cool" feature that I leave off.
 
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