Hi all. New owner of an 06 rodeo LX dual cab. Got it yesterday and love it. However this morning I'm driving and notice a couple times the Speedo just stays at 0. A whack on the dash above the Speedo brings it back online. Now I've done a bit of reading and the driven gear sounds like a usual culprit but my question is seeing as how a good whack on the dash gets it going again would that rule out the driven gear and suggest a problem with the instrumentation itself?

Thanks in advance for any guidance at all.