My toyota at highway speed reved at 4000rpm and stayed there even on cruise??
it reved pretty hard at around 4000rpm and when i got to to 100 on the cruise...it STAYED at 4000rpm for a solid 5-10seconds roughly even though at that point i was on fairly flat road.
i slightly tapped the accelerator pedel to see if it would change and it finally downshifted and the rpm went back down normally.
this has never happened before and only has 12,000 km on the dial.
its a toyota highlander.
should i be concerned?