Originally Posted by JackRav
After doing some research on the issue it appears this is normal for the Toyota. Apparently, the engineers want the engine to warm up as quickly as possible for emission reasons. I would not worry about it as long as the idle backs down to normal and it does not fluctuate at operating temperature. I believe an improper idle will throw a trouble code.
The quicker the engine warms up, the lower the emissions and the better the fuel economy (the quicker you get heats to the vents too!
I wouldnt worry about it. You arent going to hurt the engine because you arent putting a load on it when its idling.
My '85 4Runner used to idle at 1800 rpm when it was cold out and that engine had 245,000+ on it and still ran strong. I talked to the guy who bought it recently and from what he said it has close to 300,000 on it now and still runs great and doesnt burn a drop of oil.
High cold idle is a common Toyota trait. I wouldnt worry about it.