Mine does exactly the same thing and I have wondered about it. Does anyone know the answer?

Paul

 

when the guages sweep every time at start up, i believe it is doing a self test.................i think that is the answer.......

 

completely normal, happens every time with mine.

 

That is normal. There aren't cables to the gauges and that is part of the speedo calibration sequence. If it doesn't move, you got problems.

 

Yup, normal!

And if your speedo is displaying a 3-digit number while driving, it's normal too

:cheers:
Geoff

 

Normal.

 

Thanks guys.

 

Yup, normal!

And if your speedo is displaying a 3-digit number while driving, it's normal too

:cheers:
Geoff

OK, mine does that kinda often too. I almost didn't see that 1 in front of the other digits. :lol:

 

I keep waiting to see a 2 :-?

 

Normal. Subarus do that also.

 

For aircraft, guages either do this automatically or come with a test button to make them do it. It's about the only way for a pilot to verify that the guage is working.

I don't think this does anything for "calibration", though. It's just GM's way of giving us all a little more "wow factor", while at the same time letting you know your guages are working. It's not like it costs them anything more to make the guages do that. Software (as any of us in the Software business know all too well) is free!

The sweeping cursor block that paints out "Corvette by Chevrolet" (or whatever it is that it says) on the DIC at startup yet is another handy tool in the same vein. Since the cursor uses all the pixels in a character position, watching it sweep the entire DIC also helps you verify that all the pixels in the DIC are live.

 

yes normal-manual says to start engine after the "sweep" is complete

 

yes normal-manual says to start engine after the "sweep" is complete

Manual? Is that the little book they gave me with the tire gauge? :lol: :lol:

 

Manual? Is that the little book they gave me with the tire gauge? :lol: :lol:

:rofl: